All Controls¶
RHEL-07-010010 (V-71849)¶
The Red Hat Enterprise Linux operating system must be configured so that the file permissions, ownership, and group membership of system files and commands match the vendor values.
Severity: High
Implementation Status: Implemented
Description:
Discretionary access control is weakened if a user or group has access permissions to system files and directories greater than the default.
Satisfies: SRG-OS-000257-GPOS-00098, SRG-OS-000278-GPOS-00108
Variables:
rhel_07_010010
Tags:
RHEL-07-010010
Notes:
Nothing to report
RHEL-07-010020 (V-71855)¶
The Red Hat Enterprise Linux operating system must be configured so that the cryptographic hash of system files and commands matches vendor values.
Severity: High
Implementation Status: Implemented
Description:
Without cryptographic integrity protections, system command and files can be altered by unauthorized users without detection.
Cryptographic mechanisms used for protecting the integrity of information include, for example, signed hash functions using asymmetric cryptography enabling distribution of the public key to verify the hash information while maintaining the confidentiality of the key used to generate the hash.
Variables:
rhel_07_010020
Tags:
RHEL-07-010020
Notes:
Nothing to report
RHEL-07-010030 (V-71859)¶
The Red Hat Enterprise Linux operating system must display the Standard Mandatory DoD Notice and Consent Banner before granting local or remote access to the system via a graphical user logon.
Severity: Medium
Implementation Status: Implemented
Description:
Display of a standardized and approved use notification before granting access to the operating system ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance.
System use notifications are required only for access via logon interfaces with human users and are not required when such human interfaces do not exist.
The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters:
You are accessing a U.S. Government (USG) Information System (IS)
that is provided for USG-authorized use only.
By using this IS (which includes any device attached to this IS),
you consent to the following conditions:
-The USG routinely intercepts and monitors communications on this
IS for purposes including, but not limited to, penetration
testing, COMSEC monitoring, network operations and defense,
personnel misconduct (PM), law enforcement (LE), and
counterintelligence (CI) investigations.
-At any time, the USG may inspect and seize data stored on this
IS.
-Communications using, or data stored on, this IS are not private,
are subject to routine monitoring, interception, and search, and
may be disclosed or used for any USG-authorized purpose.
-This IS includes security measures (e.g., authentication and
access controls) to protect USG interests--not for your personal
benefit or privacy.
-Notwithstanding the above, using this IS does not constitute
consent to PM, LE or CI investigative searching or monitoring of
the content of privileged communications, or work product,
related to personal representation or services by attorneys,
psychotherapists, or clergy, and their assistants. Such
communications and work product are private and confidential. See
User Agreement for details.
Satisfies: SRG-OS-000023-GPOS-00006, SRG-OS-000024-GPOS-00007, SRG-OS-000228-GPOS-00088
Variables:
rhel7stig_dconf_available
rhel_07_010030
rhel_07_010040
Tags:
RHEL-07-010030
RHEL_07_010040
dod_logon_banner
dconf
gui
Notes:
Nothing to report
RHEL-07-010040 (V-71861)¶
The Red Hat Enterprise Linux operating system must display the approved Standard Mandatory DoD Notice and Consent Banner before granting local or remote access to the system via a graphical user logon.
Severity: Medium
Implementation Status: Not Implemented
Description:
Display of a standardized and approved use notification before granting access to the operating system ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance.
System use notifications are required only for access via logon interfaces with human users and are not required when such human interfaces do not exist.
The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters:
You are accessing a U.S. Government (USG) Information System (IS)
that is provided for USG-authorized use only.
By using this IS (which includes any device attached to this IS),
you consent to the following conditions:
-The USG routinely intercepts and monitors communications on this
IS for purposes including, but not limited to, penetration
testing, COMSEC monitoring, network operations and defense,
personnel misconduct (PM), law enforcement (LE), and
counterintelligence (CI) investigations.
-At any time, the USG may inspect and seize data stored on this
IS.
-Communications using, or data stored on, this IS are not private,
are subject to routine monitoring, interception, and search, and
may be disclosed or used for any USG-authorized purpose.
-This IS includes security measures (e.g., authentication and
access controls) to protect USG interests--not for your personal
benefit or privacy.
-Notwithstanding the above, using this IS does not constitute
consent to PM, LE or CI investigative searching or monitoring of
the content of privileged communications, or work product,
related to personal representation or services by attorneys,
psychotherapists, or clergy, and their assistants. Such
communications and work product are private and confidential. See
User Agreement for details.
Satisfies: SRG-OS-000023-GPOS-00006, SRG-OS-000024-GPOS-00007, SRG-OS-000228-GPOS-00088
Variables:
Tags:
Notes:
Nothing to report
RHEL-07-010050 (V-71863)¶
The Red Hat Enterprise Linux operating system must display the Standard Mandatory DoD Notice and Consent Banner before granting local or remote access to the system via a command line user logon.
Severity: Medium
Implementation Status: Implemented
Description:
Display of a standardized and approved use notification before granting access to the operating system ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance.
System use notifications are required only for access via logon interfaces with human users and are not required when such human interfaces do not exist.
The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters:
You are accessing a U.S. Government (USG) Information System (IS)
that is provided for USG-authorized use only.
By using this IS (which includes any device attached to this IS),
you consent to the following conditions:
-The USG routinely intercepts and monitors communications on this
IS for purposes including, but not limited to, penetration
testing, COMSEC monitoring, network operations and defense,
personnel misconduct (PM), law enforcement (LE), and
counterintelligence (CI) investigations.
-At any time, the USG may inspect and seize data stored on this
IS.
-Communications using, or data stored on, this IS are not private,
are subject to routine monitoring, interception, and search, and
may be disclosed or used for any USG-authorized purpose.
-This IS includes security measures (e.g., authentication and
access controls) to protect USG interests--not for your personal
benefit or privacy.
-Notwithstanding the above, using this IS does not constitute
consent to PM, LE or CI investigative searching or monitoring of
the content of privileged communications, or work product,
related to personal representation or services by attorneys,
psychotherapists, or clergy, and their assistants. Such
communications and work product are private and confidential. See
User Agreement for details.
Satisfies: SRG-OS-000023-GPOS-00006, SRG-OS-000024-GPOS-00007
Variables:
rhel_07_010050
rhel7stig_ssh_required
Tags:
RHEL-07-010050
ssh
dod_logon_banner
Notes:
Nothing to report
RHEL-07-010060 (V-71891)¶
The Red Hat Enterprise Linux operating system must enable a user session lock until that user re-establishes access using established identification and authentication procedures.
Severity: Medium
Implementation Status: Implemented
Description:
A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not want to log out because of the temporary nature of the absence.
The session lock is implemented at the point where session activity can be determined.
Regardless of where the session lock is determined and implemented, once invoked, the session lock must remain in place until the user reauthenticates. No other activity aside from reauthentication must unlock the system.
Satisfies: SRG-OS-000028-GPOS-00009, SRG-OS-000030-GPOS-00011
Variables:
rhel7stig_dconf_available
rhel_07_010060
Tags:
RHEL-07-010060
dconf
gui
Notes:
Nothing to report
RHEL-07-010061 (V-77819)¶
The Red Hat Enterprise Linux operating system must uniquely identify and must authenticate users using multifactor authentication via a graphical user logon.
Severity: Medium
Implementation Status: Implemented
Description:
To assure accountability and prevent unauthenticated access, users must be identified and authenticated to prevent potential misuse and compromise of the system.
Multifactor solutions that require devices separate from information systems gaining access include, for example, hardware tokens providing time-based or challenge-response authenticators and smart cards such as the U.S. Government Personal Identity Verification card and the DoD Common Access Card.
Satisfies: SRG-OS-000375-GPOS-00161,SRG-OS-000375-GPOS-00162
Variables:
rhel7stig_dconf_available
rhel_07_010061
Tags:
RHEL-07-010061
dconf
gui
Notes:
Nothing to report
RHEL-07-010070 (V-71893)¶
The Red Hat Enterprise Linux operating system must initiate a screensaver after a 15-minute period of inactivity for graphical user interfaces.
Severity: Medium
Implementation Status: Implemented
Description:
A session time-out lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not log out because of the temporary nature of the absence. Rather than relying on the user to manually lock their operating system session prior to vacating the vicinity, operating systems need to be able to identify when a user’s session has idled and take action to initiate the session lock.
The session lock is implemented at the point where session activity can be determined and/or controlled.
Variables:
rhel7stig_dconf_available
rhel_07_010070
Tags:
RHEL-07-010070
dconf
gui
Notes:
Nothing to report
RHEL-07-010081 (V-73155)¶
The Red Hat Enterprise Linux operating system must prevent a user from overriding the screensaver lock-delay setting for the graphical user interface.
Severity: Medium
Implementation Status: Implemented
Description:
A session time-out lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not log out because of the temporary nature of the absence. Rather than relying on the user to manually lock their operating system session prior to vacating the vicinity, operating systems need to be able to identify when a user’s session has idled and take action to initiate the session lock.
The session lock is implemented at the point where session activity can be determined and/or controlled.
Variables:
rhel7stig_dconf_available
rhel_07_010081
Tags:
RHEL-07-010081
dconf
gui
Notes:
Nothing to report
RHEL-07-010082 (V-73157)¶
The Red Hat Enterprise Linux operating system must prevent a user from overriding the session idle-delay setting for the graphical user interface.
Severity: Medium
Implementation Status: Implemented
Description:
A session time-out lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not log out because of the temporary nature of the absence. Rather than relying on the user to manually lock their operating system session prior to vacating the vicinity, operating systems need to be able to identify when a user’s session has idled and take action to initiate the session lock.
The session lock is implemented at the point where session activity can be determined and/or controlled.
Variables:
rhel7stig_dconf_available
rhel_07_010082
Tags:
RHEL-07-010082
dconf
gui
Notes:
Nothing to report
RHEL-07-010090 (V-71897)¶
The Red Hat Enterprise Linux operating system must have the screen package installed.
Severity: Medium
Implementation Status: Implemented
Description:
A session time-out lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not log out because of the temporary nature of the absence. Rather than relying on the user to manually lock their operating system session prior to vacating the vicinity, operating systems need to be able to identify when a user’s session has idled and take action to initiate the session lock.
The screen package allows for a session lock to be implemented and configured.
Variables:
rhel_07_010090
Tags:
RHEL-07-010090
Notes:
Nothing to report
RHEL-07-010100 (V-71899)¶
The Red Hat Enterprise Linux operating system must initiate a session lock for the screensaver after a period of inactivity for graphical user interfaces.
Severity: Medium
Implementation Status: Implemented
Description:
A session time-out lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not log out because of the temporary nature of the absence. Rather than relying on the user to manually lock their operating system session prior to vacating the vicinity, operating systems need to be able to identify when a user’s session has idled and take action to initiate the session lock.
The session lock is implemented at the point where session activity can be determined and/or controlled.
Variables:
rhel7stig_dconf_available
rhel_07_010100
Tags:
RHEL-07-010100
dconf
gui
Notes:
Nothing to report
RHEL-07-010101 (V-78997)¶
The Red Hat Enterprise Linux operating system must prevent a user from overriding the screensaver idle-activation-enabled setting for the graphical user interface.
Severity: Medium
Implementation Status: Implemented
Description:
A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not want to log out because of the temporary nature of the absence.
The session lock is implemented at the point where session activity can be determined.
The ability to enable/disable a session lock is given to the user by default. Disabling the user’s ability to disengage the graphical user interface session lock provides the assurance that all sessions will lock after the specified period of time.
Variables:
rhel7stig_dconf_available
rhel_07_010101
Tags:
RHEL-07-010101
dconf
gui
Notes:
Nothing to report
RHEL-07-010110 (V-71901)¶
The Red Hat Enterprise Linux operating system must initiate a session lock for graphical user interfaces when the screensaver is activated.
Severity: Medium
Implementation Status: Implemented
Description:
A session time-out lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not log out because of the temporary nature of the absence. Rather than relying on the user to manually lock their operating system session prior to vacating the vicinity, operating systems need to be able to identify when a user’s session has idled and take action to initiate the session lock.
The session lock is implemented at the point where session activity can be determined and/or controlled.
Variables:
rhel7stig_dconf_available
rhel_07_010110
Tags:
RHEL-07-010110
dconf
gui
Notes:
Nothing to report
RHEL-07-010118 (V-81003)¶
The Red Hat Enterprise Linux operating system must be configured so that /etc/pam.d/passwd implements /etc/pam.d/system-auth when changing passwords.
Severity: Medium
Implementation Status: Not Implemented
Description:
Pluggable authentication modules (PAM) allow for a modular approach to integrating authentication methods. PAM operates in a top-down processing model and if the modules are not listed in the correct order, an important security function could be bypassed if stack entries are not centralized.
Variables:
Tags:
Notes:
Nothing to report
RHEL-07-010119 (V-73159)¶
The Red Hat Enterprise Linux operating system must be configured so that when passwords are changed or new passwords are established, pwquality must be used.
Severity: Medium
Implementation Status: Implemented
Description:
Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. “pwquality” enforces complex password construction configuration and has the ability to limit brute-force attacks on the system.
Variables:
rhel_07_010119
Tags:
RHEL-07-010119
pamd
Notes:
Nothing to report
RHEL-07-010120 (V-71903)¶
The Red Hat Enterprise Linux operating system must be configured so that when passwords are changed or new passwords are established, the new password must contain at least one upper-case character.
Severity: Medium
Implementation Status: Implemented
Description:
Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks.
Password complexity is one factor of several that determines how long it takes to crack a password. The more complex the password, the greater the number of possible combinations that need to be tested before the password is compromised.
Variables:
rhel_07_010120
Tags:
RHEL-07-010120
pwquality
Notes:
Nothing to report
RHEL-07-010130 (V-71905)¶
The Red Hat Enterprise Linux operating system must be configured so that when passwords are changed or new passwords are established, the new password must contain at least one lower-case character.
Severity: Medium
Implementation Status: Implemented
Description:
Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks.
Password complexity is one factor of several that determines how long it takes to crack a password. The more complex the password, the greater the number of possible combinations that need to be tested before the password is compromised.
Variables:
rhel_07_010130
Tags:
RHEL-07-010130
pwquality
Notes:
Nothing to report
RHEL-07-010140 (V-71907)¶
The Red Hat Enterprise Linux operating system must be configured so that when passwords are changed or new passwords are assigned, the new password must contain at least one numeric character.
Severity: Medium
Implementation Status: Implemented
Description:
Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks.
Password complexity is one factor of several that determines how long it takes to crack a password. The more complex the password, the greater the number of possible combinations that need to be tested before the password is compromised.
Variables:
rhel_07_010140
Tags:
RHEL-07-010140
pwquality
Notes:
Nothing to report
RHEL-07-010150 (V-71909)¶
The Red Hat Enterprise Linux operating system must be configured so that when passwords are changed or new passwords are established, the new password must contain at least one special character.
Severity: Medium
Implementation Status: Implemented
Description:
Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks.
Password complexity is one factor of several that determines how long it takes to crack a password. The more complex the password, the greater the number of possible combinations that need to be tested before the password is compromised.
Variables:
rhel_07_010150
Tags:
RHEL-07-010150
pwquality
Notes:
Nothing to report
RHEL-07-010160 (V-71911)¶
The Red Hat Enterprise Linux operating system must be configured so that when passwords are changed a minimum of eight of the total number of characters must be changed.
Severity: Medium
Implementation Status: Implemented
Description:
Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks.
Password complexity is one factor of several that determines how long it takes to crack a password. The more complex the password, the greater the number of possible combinations that need to be tested before the password is compromised.
Variables:
rhel_07_010160
Tags:
RHEL-07-010160
pwquality
Notes:
Nothing to report
RHEL-07-010170 (V-71913)¶
The Red Hat Enterprise Linux operating system must be configured so that when passwords are changed a minimum of four character classes must be changed.
Severity: Medium
Implementation Status: Implemented
Description:
Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks.
Password complexity is one factor of several that determines how long it takes to crack a password. The more complex the password, the greater the number of possible combinations that need to be tested before the password is compromised.
Variables:
rhel_07_010170
Tags:
RHEL-07-010170
pwquality
Notes:
Nothing to report
RHEL-07-010180 (V-71915)¶
The Red Hat Enterprise Linux operating system must be configured so that when passwords are changed the number of repeating consecutive characters must not be more than three characters.
Severity: Medium
Implementation Status: Implemented
Description:
Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks.
Password complexity is one factor of several that determines how long it takes to crack a password. The more complex the password, the greater the number of possible combinations that need to be tested before the password is compromised.
Variables:
rhel_07_010180
Tags:
RHEL-07-010180
pwquality
Notes:
Nothing to report
RHEL-07-010190 (V-71917)¶
The Red Hat Enterprise Linux operating system must be configured so that when passwords are changed the number of repeating characters of the same character class must not be more than four characters.
Severity: Medium
Implementation Status: Implemented
Description:
Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks.
Password complexity is one factor of several that determines how long it takes to crack a password. The more complex the password, the greater the number of possible combinations that need to be tested before the password is compromised.
Variables:
rhel_07_010190
Tags:
RHEL-07-010190
pwquality
Notes:
Nothing to report
RHEL-07-010200 (V-71919)¶
The Red Hat Enterprise Linux operating system must be configured so that the PAM system service is configured to store only encrypted representations of passwords.
Severity: Medium
Implementation Status: Implemented
Description:
Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords are not encrypted, they can be plainly read (i.e., clear text) and easily compromised. Passwords encrypted with a weak algorithm are no more protected than if they are kept in plain text.
Variables:
rhel_07_010200
Tags:
RHEL-07-010200
pamd
Notes:
Nothing to report
RHEL-07-010210 (V-71921)¶
The Red Hat Enterprise Linux operating system must be configured to use the shadow file to store only encrypted representations of passwords.
Severity: Medium
Implementation Status: Implemented
Description:
Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords are not encrypted, they can be plainly read (i.e., clear text) and easily compromised. Passwords encrypted with a weak algorithm are no more protected than if they are kept in plain text.
Variables:
rhel_07_010210
Tags:
RHEL-07-010210
login
Notes:
Nothing to report
RHEL-07-010220 (V-71923)¶
The Red Hat Enterprise Linux operating system must be configured so that user and group account administration utilities are configured to store only encrypted representations of passwords.
Severity: Medium
Implementation Status: Implemented
Description:
Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords are not encrypted, they can be plainly read (i.e., clear text) and easily compromised. Passwords encrypted with a weak algorithm are no more protected than if they are kept in plain text.
Variables:
rhel_07_010220
Tags:
RHEL-07-010220
Notes:
Nothing to report
RHEL-07-010230 (V-71925)¶
The Red Hat Enterprise Linux operating system must be configured so that passwords for new users are restricted to a 24 hours/1 day minimum lifetime.
Severity: Medium
Implementation Status: Implemented
Description:
Enforcing a minimum password lifetime helps to prevent repeated password changes to defeat the password reuse or history enforcement requirement. If users are allowed to immediately and continually change their password, the password could be repeatedly changed in a short period of time to defeat the organization’s policy regarding password reuse.
Variables:
rhel_07_010230
Tags:
RHEL-07-010230
login
Notes:
Nothing to report
RHEL-07-010240 (V-71927)¶
The Red Hat Enterprise Linux operating system must be configured so that passwords are restricted to a 24 hours/1 day minimum lifetime.
Severity: Medium
Implementation Status: Implemented
Description:
Enforcing a minimum password lifetime helps to prevent repeated password changes to defeat the password reuse or history enforcement requirement. If users are allowed to immediately and continually change their password, the password could be repeatedly changed in a short period of time to defeat the organization’s policy regarding password reuse.
Variables:
rhel_07_010240
Tags:
RHEL-07-010240
password
Notes:
Nothing to report
RHEL-07-010250 (V-71929)¶
The Red Hat Enterprise Linux operating system must be configured so that passwords for new users are restricted to a 60-day maximum lifetime.
Severity: Medium
Implementation Status: Implemented
Description:
Any password, no matter how complex, can eventually be cracked. Therefore, passwords need to be changed periodically. If the operating system does not limit the lifetime of passwords and force users to change their passwords, there is the risk that the operating system passwords could be compromised.
Variables:
rhel_07_010250
Tags:
RHEL-07-010250
login
Notes:
Nothing to report
RHEL-07-010260 (V-71931)¶
The Red Hat Enterprise Linux operating system must be configured so that existing passwords are restricted to a 60-day maximum lifetime.
Severity: Medium
Implementation Status: Disruption High
Description:
Any password, no matter how complex, can eventually be cracked. Therefore, passwords need to be changed periodically. If the operating system does not limit the lifetime of passwords and force users to change their passwords, there is the risk that the operating system passwords could be compromised.
Variables:
rhel_07_010260
rhel7stig_disruptive
Tags:
RHEL-07-010260
disruption-high
password
Notes:
Nothing to report
RHEL-07-010270 (V-71933)¶
The Red Hat Enterprise Linux operating system must be configured so that passwords are prohibited from reuse for a minimum of five generations.
Severity: Medium
Implementation Status: Implemented
Description:
Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. If the information system or application allows the user to consecutively reuse their password when that password has exceeded its defined lifetime, the end result is a password that is not changed per policy requirements.
Variables:
rhel_07_010270
Tags:
RHEL-07-010270
pamd
Notes:
Nothing to report
RHEL-07-010280 (V-71935)¶
The Red Hat Enterprise Linux operating system must be configured so that passwords are a minimum of 15 characters in length.
Severity: Medium
Implementation Status: Implemented
Description:
The shorter the password, the lower the number of possible combinations that need to be tested before the password is compromised.
Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password length is one factor of several that helps to determine strength and how long it takes to crack a password. Use of more characters in a password helps to exponentially increase the time and/or resources required to compromise the password.
Variables:
rhel_07_010280
Tags:
RHEL-07-010280
pwquality
Notes:
Nothing to report
RHEL-07-010290 (V-71937)¶
The Red Hat Enterprise Linux operating system must not have accounts configured with blank or null passwords.
Severity: High
Implementation Status: Implemented
Description:
If an account has an empty password, anyone could log on and run commands with the privileges of that account. Accounts with empty passwords should never be used in operational environments.
Variables:
rhel_07_010290
Tags:
RHEL-07-010290
pamd
Notes:
Nothing to report
RHEL-07-010300 (V-71939)¶
The Red Hat Enterprise Linux operating system must be configured so that the SSH daemon does not allow authentication using an empty password.
Severity: High
Implementation Status: Implemented
Description:
Configuring this setting for the SSH daemon provides additional assurance that remote logon via SSH will require a password, even in the event of misconfiguration elsewhere.
Variables:
rhel_07_010300
rhel7stig_ssh_required
Tags:
RHEL-07-010300
ssh
Notes:
Nothing to report
RHEL-07-010310 (V-71941)¶
The Red Hat Enterprise Linux operating system must disable account identifiers (individuals, groups, roles, and devices) if the password expires.
Severity: Medium
Implementation Status: Implemented
Description:
Inactive identifiers pose a risk to systems and applications because attackers may exploit an inactive identifier and potentially obtain undetected access to the system. Owners of inactive accounts will not notice if unauthorized access to their user account has been obtained.
Operating systems need to track periods of inactivity and disable application identifiers after zero days of inactivity.
Variables:
rhel_07_010310
Tags:
RHEL-07-010310
Notes:
Nothing to report
RHEL-07-010320 (V-71943)¶
Accounts on the Red Hat Enterprise Linux operating system that are subject to three unsuccessful logon attempts within 15 minutes must be locked for the maximum configurable period.
Severity: Medium
Implementation Status: Implemented
Description:
By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-forcing, is reduced. Limits are imposed by locking the account.
Satisfies: SRG-OS-000329-GPOS-00128, SRG-OS-000021-GPOS-00005
Variables:
rhel_07_010320 or rhel_07_010330
Tags:
RHEL-07-010320
RHEL-07-010330
pamd
Notes:
Nothing to report
RHEL-07-010330 (V-71945)¶
The Red Hat Enterprise Linux operating system must lock the associated account after three unsuccessful root logon attempts are made within a 15-minute period.
Severity: Medium
Implementation Status: Implemented
Description:
By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute forcing, is reduced. Limits are imposed by locking the account.
Satisfies: SRG-OS-000329-GPOS-00128, SRG-OS-000021-GPOS-00005
Variables:
rhel_07_010320 or rhel_07_010330
Tags:
RHEL-07-010320
RHEL-07-010330
pamd
Notes:
Nothing to report
RHEL-07-010340 (V-71947)¶
The Red Hat Enterprise Linux operating system must be configured so that users must provide a password for privilege escalation.
Severity: Medium
Implementation Status: Implemented
Description:
Without re-authentication, users may access resources or perform tasks for which they do not have authorization.
When operating systems provide the capability to escalate a functional capability, it is critical the user re-authenticate.
Satisfies: SRG-OS-000373-GPOS-00156, SRG-OS-000373-GPOS-00157, SRG-OS-000373-GPOS-00158
Variables:
rhel7stig_using_password_auth
rhel_07_010340
Tags:
RHEL-07-010340
sudoers
Notes:
Nothing to report
RHEL-07-010350 (V-71949)¶
The Red Hat Enterprise Linux operating system must be configured so that users must re-authenticate for privilege escalation.
Severity: Medium
Implementation Status: Implemented
Description:
Without re-authentication, users may access resources or perform tasks for which they do not have authorization.
When operating systems provide the capability to escalate a functional capability, it is critical the user reauthenticate.
Satisfies: SRG-OS-000373-GPOS-00156, SRG-OS-000373-GPOS-00157, SRG-OS-000373-GPOS-00158
Variables:
rhel_07_010350
Tags:
RHEL-07-010350
sudoers
Notes:
Nothing to report
RHEL-07-010430 (V-71951)¶
The Red Hat Enterprise Linux operating system must be configured so that the delay between logon prompts following a failed console logon attempt is at least four seconds.
Severity: Medium
Implementation Status: Implemented
Description:
Configuring the operating system to implement organization-wide security implementation guides and security checklists verifies compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements.
Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example, registry settings; account, file, and directory permission settings; and settings for functions, ports, protocols, services, and remote connections.
Variables:
rhel_07_010430
Tags:
RHEL-07-010430
login
Notes:
Nothing to report
RHEL-07-010440 (V-71953)¶
The Red Hat Enterprise Linux operating system must not allow an unattended or automatic logon to the system via a graphical user interface.
Severity: High
Implementation Status: Implemented
Description:
Failure to restrict system access to authenticated users negatively impacts operating system security.
Variables:
rhel7stig_gui
rhel_07_010440
Tags:
RHEL-07-010440
gui
Notes:
Nothing to report
RHEL-07-010450 (V-71955)¶
The Red Hat Enterprise Linux operating system must not allow an unrestricted logon to the system.
Severity: High
Implementation Status: Implemented
Description:
Failure to restrict system access to authenticated users negatively impacts operating system security.
Variables:
rhel7stig_gui
rhel_07_010450
Tags:
RHEL-07-010450
gui
Notes:
Nothing to report
RHEL-07-010460 (V-71957)¶
The Red Hat Enterprise Linux operating system must not allow users to override SSH environment variables.
Severity: Medium
Implementation Status: Implemented
Description:
Failure to restrict system access to authenticated users negatively impacts operating system security.
Variables:
rhel_07_010460
rhel7stig_ssh_required
Tags:
RHEL-07-010460
ssh
Notes:
Nothing to report
RHEL-07-010470 (V-71959)¶
The Red Hat Enterprise Linux operating system must not allow a non-certificate trusted host SSH logon to the system.
Severity: Medium
Implementation Status: Implemented
Description:
Failure to restrict system access to authenticated users negatively impacts operating system security.
Variables:
rhel7stig_ssh_required
Tags:
RHEL-07-010470
ssh
Notes:
Nothing to report
RHEL-07-010480 (V-71961)¶
Red Hat Enterprise Linux operating systems prior to version 7.2 with a Basic Input/Output System (BIOS) must require authentication upon booting into single-user and maintenance modes.
Severity: High
Implementation Status: Implemented
Description:
If the system does not require valid root authentication before it boots into single-user or maintenance mode, anyone who invokes single-user or maintenance mode is granted privileged access to all files on the system. GRUB 2 is the default boot loader for RHEL 7 and is designed to require a password to boot into single-user mode or make modifications to the boot menu.
Variables:
rhel_07_010480 or rhel_07_010490
ansible_distribution_version is version_compare('7.2', '<')
Tags:
RHEL-07-010480
RHEL-07-010490
grub
bootloader
Notes:
Nothing to report
RHEL-07-010481 (V-77823)¶
The Red Hat Enterprise Linux operating system must require authentication upon booting into single-user and maintenance modes.
Severity: Medium
Implementation Status: Implemented
Description:
If the system does not require valid root authentication before it boots into single-user or maintenance mode, anyone who invokes single-user or maintenance mode is granted privileged access to all files on the system.
Variables:
rhel_07_010481
Tags:
RHEL-07-010481
rescue
Notes:
Nothing to report
RHEL-07-010482 (V-81005)¶
Red Hat Enterprise Linux operating systems version 7.2 or newer with a Basic Input/Output System (BIOS) must require authentication upon booting into single-user and maintenance modes.
Severity: High
Implementation Status: Implemented
Description:
If the system does not require valid root authentication before it boots into single-user or maintenance mode, anyone who invokes single-user or maintenance mode is granted privileged access to all files on the system. GRUB 2 is the default boot loader for RHEL 7 and is designed to require a password to boot into single-user mode or make modifications to the boot menu.
Variables:
rhel_07_010482 or rhel_07_010491
ansible_distribution_version is version_compare('7.2', '>=')
Tags:
RHEL-07-010482
RHEL-07-010491
grub
bootloader
Notes:
Nothing to report
RHEL-07-010490 (V-71963)¶
Red Hat Enterprise Linux operating systems prior to version 7.2 using Unified Extensible Firmware Interface (UEFI) must require authentication upon booting into single-user and maintenance modes.
Severity: High
Implementation Status: Implemented
Description:
If the system does not require valid root authentication before it boots into single-user or maintenance mode, anyone who invokes single-user or maintenance mode is granted privileged access to all files on the system. GRUB 2 is the default boot loader for RHEL 7 and is designed to require a password to boot into single-user mode or make modifications to the boot menu.
Variables:
rhel_07_010480 or rhel_07_010490
ansible_distribution_version is version_compare('7.2', '<')
Tags:
RHEL-07-010480
RHEL-07-010490
grub
bootloader
Notes:
Nothing to report
RHEL-07-010491 (V-81007)¶
Red Hat Enterprise Linux operating systems version 7.2 or newer using Unified Extensible Firmware Interface (UEFI) must require authentication upon booting into single-user and maintenance modes.
Severity: High
Implementation Status: Implemented
Description:
If the system does not require valid root authentication before it boots into single-user or maintenance mode, anyone who invokes single-user or maintenance mode is granted privileged access to all files on the system. GRUB 2 is the default boot loader for RHEL 7 and is designed to require a password to boot into single-user mode or make modifications to the boot menu.
Variables:
rhel_07_010482 or rhel_07_010491
ansible_distribution_version is version_compare('7.2', '>=')
Tags:
RHEL-07-010482
RHEL-07-010491
grub
bootloader
Notes:
Nothing to report
RHEL-07-010500 (V-71965)¶
The Red Hat Enterprise Linux operating system must uniquely identify and must authenticate organizational users (or processes acting on behalf of organizational users) using multifactor authentication.
Severity: Medium
Implementation Status: Not Implemented
Description:
To assure accountability and prevent unauthenticated access, organizational users must be identified and authenticated to prevent potential misuse and compromise of the system.
Organizational users include organizational employees or individuals the organization deems to have equivalent status of employees (e.g., contractors). Organizational users (and processes acting on behalf of users) must be uniquely identified and authenticated to all accesses, except for the following:
- Accesses explicitly identified and documented by the organization. Organizations document specific user actions that can be performed on the information system without identification or authentication;
and
- Accesses that occur through authorized use of group authenticators without individual authentication. Organizations may require unique identification of individuals in group accounts (e.g., shared privilege accounts) or for detailed accountability of individual activity.
Satisfies: SRG-OS-000104-GPOS-00051, SRG-OS-000106-GPOS-00053, SRG-OS-000107-GPOS-00054, SRG-OS-000109-GPOS-00056, SRG-OS-000108-GPOS-00055, SRG-OS-000108-GPOS-00057, SRG-OS-000108-GPOS-00058
Variables:
rhel_07_010500
Tags:
RHEL-07-010500
notimplemented
Notes:
Nothing to report
RHEL-07-020000 (V-71967)¶
The Red Hat Enterprise Linux operating system must not have the rsh-server package installed.
Severity: High
Implementation Status: Implemented
Description:
It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors.
Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions).
The rsh-server service provides an unencrypted remote access service that does not provide for the confidentiality and integrity of user passwords or the remote session and has very weak authentication.
If a privileged user were to log on using this service, the privileged user password could be compromised.
Variables:
rhel_07_020000
Tags:
RHEL-07-020000
rsh
Notes:
Nothing to report
RHEL-07-020010 (V-71969)¶
The Red Hat Enterprise Linux operating system must not have the ypserv package installed.
Severity: High
Implementation Status: Implemented
Description:
Removing the “ypserv” package decreases the risk of the accidental (or intentional) activation of NIS or NIS+ services.
Variables:
rhel_07_020010
Tags:
RHEL-07-020010
ypserv
Notes:
Nothing to report
RHEL-07-020020 (V-71971)¶
The Red Hat Enterprise Linux operating system must prevent non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures.
Severity: Medium
Implementation Status: Not Implemented
Description:
Preventing non-privileged users from executing privileged functions mitigates the risk that unauthorized individuals or processes may gain unnecessary access to information or privileges.
Privileged functions include, for example, establishing accounts, performing system integrity checks, or administering cryptographic key management activities. Non-privileged users are individuals who do not possess appropriate authorizations. Circumventing intrusion detection and prevention mechanisms or malicious code protection mechanisms are examples of privileged functions that require protection from non-privileged users.
Variables:
rhel_07_020020
Tags:
RHEL-07-020020
notimplemented
Notes:
Nothing to report
RHEL-07-020030 (V-71973)¶
The Red Hat Enterprise Linux operating system must be configured so that a file integrity tool verifies the baseline operating system configuration at least weekly.
Severity: Medium
Implementation Status: Implemented
Description:
Unauthorized changes to the baseline configuration could make the system vulnerable to various attacks or allow unauthorized access to the operating system. Changes to operating system configurations can have unintended side effects, some of which may be relevant to security.
Detecting such changes and providing an automated response can help avoid unintended, negative consequences that could ultimately affect the security state of the operating system. The operating system’s Information Management Officer (IMO)/Information System Security Officer (ISSO) and System Administrators (SAs) must be notified via email and/or monitoring system trap when there is an unauthorized modification of a configuration item.
Variables:
rhel_07_020030 or rhel_07_020040
Tags:
RHEL-07-020030
RHEL-07-020040
aide
Notes:
Nothing to report
RHEL-07-020040 (V-71975)¶
The Red Hat Enterprise Linux operating system must be configured so that designated personnel are notified if baseline configurations are changed in an unauthorized manner.
Severity: Medium
Implementation Status: Implemented
Description:
Unauthorized changes to the baseline configuration could make the system vulnerable to various attacks or allow unauthorized access to the operating system. Changes to operating system configurations can have unintended side effects, some of which may be relevant to security.
Detecting such changes and providing an automated response can help avoid unintended, negative consequences that could ultimately affect the security state of the operating system. The operating system’s Information Management Officer (IMO)/Information System Security Officer (ISSO) and System Administrators (SAs) must be notified via email and/or monitoring system trap when there is an unauthorized modification of a configuration item.
Variables:
rhel_07_020030 or rhel_07_020040
Tags:
RHEL-07-020030
RHEL-07-020040
aide
Notes:
Nothing to report
RHEL-07-020050 (V-71977)¶
The Red Hat Enterprise Linux operating system must prevent the installation of software, patches, service packs, device drivers, or operating system components from a repository without verification they have been digitally signed using a certificate that is issued by a Certificate Authority (CA) that is recognized and approved by the organization.
Severity: High
Implementation Status: Implemented
Description:
Changes to any software components can have significant effects on the overall security of the operating system. This requirement ensures the software has not been tampered with and that it has been provided by a trusted vendor.
Accordingly, patches, service packs, device drivers, or operating system components must be signed with a certificate recognized and approved by the organization.
Verifying the authenticity of the software prior to installation validates the integrity of the patch or upgrade received from a vendor. This verifies the software has not been tampered with and that it has been provided by a trusted vendor. Self-signed certificates are disallowed by this requirement. The operating system should not have to verify the software again. This requirement does not mandate DoD certificates for this purpose; however, the certificate used to verify the software must be from an approved CA.
Variables:
rhel_07_020050
Tags:
RHEL-07-020050
yum
Notes:
Nothing to report
RHEL-07-020060 (V-71979)¶
The Red Hat Enterprise Linux operating system must prevent the installation of software, patches, service packs, device drivers, or operating system components of local packages without verification they have been digitally signed using a certificate that is issued by a Certificate Authority (CA) that is recognized and approved by the organization.
Severity: High
Implementation Status: Implemented
Description:
Changes to any software components can have significant effects on the overall security of the operating system. This requirement ensures the software has not been tampered with and that it has been provided by a trusted vendor.
Accordingly, patches, service packs, device drivers, or operating system components must be signed with a certificate recognized and approved by the organization.
Verifying the authenticity of the software prior to installation validates the integrity of the patch or upgrade received from a vendor. This verifies the software has not been tampered with and that it has been provided by a trusted vendor. Self-signed certificates are disallowed by this requirement. The operating system should not have to verify the software again. This requirement does not mandate DoD certificates for this purpose; however, the certificate used to verify the software must be from an approved CA.
Variables:
rhel_07_020060
Tags:
RHEL-07-020060
yum
Notes:
Nothing to report
RHEL-07-020100 (V-71983)¶
The Red Hat Enterprise Linux operating system must be configured to disable USB mass storage.
Severity: Medium
Implementation Status: Implemented
Description:
USB mass storage permits easy introduction of unknown devices, thereby facilitating malicious activity.
Satisfies: SRG-OS-000114-GPOS-00059, SRG-OS-000378-GPOS-00163, SRG-OS-000480-GPOS-00227
Variables:
rhel_07_020100
Tags:
RHEL-07-020100
usb_devices
Notes:
Nothing to report
RHEL-07-020101 (V-77821)¶
The Red Hat Enterprise Linux operating system must be configured so that the Datagram Congestion Control Protocol (DCCP) kernel module is disabled unless required.
Severity: Medium
Implementation Status: Implemented
Description:
Disabling DCCP protects the system against exploitation of any flaws in the protocol implementation.
Variables:
rhel_07_020101
Tags:
RHEL-07-020101
dccp
Notes:
Nothing to report
RHEL-07-020110 (V-71985)¶
The Red Hat Enterprise Linux operating system must disable the file system automounter unless required.
Severity: Medium
Implementation Status: Implemented
Description:
Automatically mounting file systems permits easy introduction of unknown devices, thereby facilitating malicious activity.
Satisfies: SRG-OS-000114-GPOS-00059, SRG-OS-000378-GPOS-00163, SRG-OS-000480-GPOS-00227
Variables:
rhel_07_020110
rhel_07_020110
rhel_07_020110_autofs_service_status.stdout == "loaded"
not rhel7stig_autofs_required
Tags:
RHEL-07-020110
Notes:
Nothing to report
RHEL-07-020200 (V-71987)¶
The Red Hat Enterprise Linux operating system must remove all software components after updated versions have been installed.
Severity: Low
Implementation Status: Implemented
Description:
Previous versions of software components that are not removed from the information system after updates have been installed may be exploited by adversaries. Some information technology products may remove older versions of software automatically from the information system.
Variables:
rhel_07_020200
Tags:
RHEL-07-020200
Notes:
Nothing to report
RHEL-07-020210 (V-71989)¶
The Red Hat Enterprise Linux operating system must enable SELinux.
Severity: High
Implementation Status: Implemented
Description:
Without verification of the security functions, security functions may not operate correctly and the failure may go unnoticed. Security function is defined as the hardware, software, and/or firmware of the information system responsible for enforcing the system security policy and supporting the isolation of code and data on which the protection is based. Security functionality includes, but is not limited to, establishing system accounts, configuring access authorizations (i.e., permissions, privileges), setting events to be audited, and setting intrusion detection parameters.
This requirement applies to operating systems performing security function verification/testing and/or systems and environments that require this functionality.
Variables:
rhel_07_020210 or rhel_07_020220
not rhel7stig_system_is_container
Tags:
RHEL-07-020210
RHEL-07-020220
selinux
Notes:
Nothing to report
RHEL-07-020220 (V-71991)¶
The Red Hat Enterprise Linux operating system must enable the SELinux targeted policy.
Severity: High
Implementation Status: Implemented
Description:
Without verification of the security functions, security functions may not operate correctly and the failure may go unnoticed. Security function is defined as the hardware, software, and/or firmware of the information system responsible for enforcing the system security policy and supporting the isolation of code and data on which the protection is based. Security functionality includes, but is not limited to, establishing system accounts, configuring access authorizations (i.e., permissions, privileges), setting events to be audited, and setting intrusion detection parameters.
This requirement applies to operating systems performing security function verification/testing and/or systems and environments that require this functionality.
Variables:
rhel_07_020210 or rhel_07_020220
not rhel7stig_system_is_container
Tags:
RHEL-07-020210
RHEL-07-020220
selinux
Notes:
Nothing to report
RHEL-07-020230 (V-71993)¶
The Red Hat Enterprise Linux operating system must be configured so that the x86 Ctrl-Alt-Delete key sequence is disabled.
Severity: High
Implementation Status: Implemented
Description:
A locally logged-on user who presses Ctrl-Alt-Delete, when at the console, can reboot the system. If accidentally pressed, as could happen in the case of a mixed OS environment, this can create the risk of short-term loss of availability of systems due to unintentional reboot. In the GNOME graphical environment, risk of unintentional reboot from the Ctrl-Alt-Delete sequence is reduced because the user will be prompted before any action is taken.
Variables:
rhel_07_020230
Tags:
RHEL-07-020230
Notes:
Nothing to report
RHEL-07-020240 (V-71995)¶
The Red Hat Enterprise Linux operating system must define default permissions for all authenticated users in such a way that the user can only read and modify their own files.
Severity: Medium
Implementation Status: Implemented
Description:
Setting the most restrictive default permissions ensures that when new accounts are created, they do not have unnecessary access.
Variables:
rhel_07_020240
Tags:
RHEL-07-020240
login
umask
Notes:
Nothing to report
RHEL-07-020250 (V-71997)¶
The Red Hat Enterprise Linux operating system must be a vendor supported release.
Severity: High
Implementation Status: Complexity High
Description:
An operating system release is considered “supported” if the vendor continues to provide security patches for the product. With an unsupported release, it will not be possible to resolve security issues discovered in the system software.
Variables:
rhel_07_020250
rhel7stig_complex
Tags:
RHEL-07-020250
complexity-high
Notes:
Nothing to report
RHEL-07-020260 (V-71999)¶
The Red Hat Enterprise Linux operating system security patches and updates must be installed and up to date.
Severity: Medium
Implementation Status: Implemented
Description:
Timely patching is critical for maintaining the operational availability, confidentiality, and integrity of information technology (IT) systems. However, failure to keep operating system and application software patched is a common mistake made by IT professionals. New patches are released daily, and it is often difficult for even experienced System Administrators to keep abreast of all the new patches. When new weaknesses in an operating system exist, patches are usually made available by the vendor to resolve the problems. If the most recent security patches and updates are not installed, unauthorized users may take advantage of weaknesses in the unpatched software. The lack of prompt attention to patching could result in a system compromise.
Variables:
rhel_07_020260
rhel_07_020260
rhel_07_020260
rhel7stig_auto_package_updates_enabled or rhel_07_020260_yum_cron_installed.rc == 0
Tags:
RHEL-07-020260
packaging
Notes:
Nothing to report
RHEL-07-020270 (V-72001)¶
The Red Hat Enterprise Linux operating system must not have unnecessary accounts.
Severity: Medium
Implementation Status: Implemented
Description:
Accounts providing no operational purpose provide additional opportunities for system compromise. Unnecessary accounts include user accounts for individuals not requiring access to the system and application accounts for applications not installed on the system.
Variables:
rhel_07_020270
Tags:
RHEL-07-020270
Notes:
Nothing to report
RHEL-07-020300 (V-72003)¶
The Red Hat Enterprise Linux operating system must be configured so that all Group Identifiers (GIDs) referenced in the /etc/passwd file are defined in the /etc/group file.
Severity: Low
Implementation Status: Complexity High
Description:
If a user is assigned the GID of a group not existing on the system, and a group with the GID is subsequently created, the user may have unintended rights to any files associated with the group.
Variables:
rhel_07_020300
rhel7stig_complex
Tags:
RHEL-07-020300
complexity-high
passwd
Notes:
Nothing to report
RHEL-07-020310 (V-72005)¶
The Red Hat Enterprise Linux operating system must be configured so that the root account must be the only account having unrestricted access to the system.
Severity: High
Implementation Status: Implemented
Description:
If an account other than root also has a User Identifier (UID) of “0”, it has root authority, giving that account unrestricted access to the entire operating system. Multiple accounts with a UID of “0” afford an opportunity for potential intruders to guess a password for a privileged account.
Variables:
rhel_07_020310
Tags:
RHEL-07-020310
Notes:
Nothing to report
RHEL-07-020320 (V-72007)¶
The Red Hat Enterprise Linux operating system must be configured so that all files and directories have a valid owner.
Severity: Medium
Implementation Status: Complexity High
Description:
Unowned files and directories may be unintentionally inherited if a user is assigned the same User Identifier “UID” as the UID of the un-owned files.
Variables:
rhel_07_020320
rhel7stig_complex
Tags:
RHEL-07-020320
complexity-high
Notes:
Nothing to report
RHEL-07-020330 (V-72009)¶
The Red Hat Enterprise Linux operating system must be configured so that all files and directories have a valid group owner.
Severity: Medium
Implementation Status: Complexity High
Description:
Files without a valid group owner may be unintentionally inherited if a group is assigned the same Group Identifier (GID) as the GID of the files without a valid group owner.
Variables:
rhel_07_020330
rhel7stig_complex
Tags:
RHEL-07-020330
complexity-high
Notes:
Nothing to report
RHEL-07-020600 (V-72011)¶
The Red Hat Enterprise Linux operating system must be configured so that all local interactive users have a home directory assigned in the /etc/passwd file.
Severity: Medium
Implementation Status: Implemented
Description:
If local interactive users are not assigned a valid home directory, there is no place for the storage and control of files they should own.
Variables:
rhel_07_020600
Tags:
RHEL-07-020600
Notes:
Nothing to report
RHEL-07-020610 (V-72013)¶
The Red Hat Enterprise Linux operating system must be configured so that all local interactive user accounts, upon creation, are assigned a home directory.
Severity: Medium
Implementation Status: Implemented
Description:
If local interactive users are not assigned a valid home directory, there is no place for the storage and control of files they should own.
Variables:
rhel_07_020610
Tags:
RHEL-07-020610
login
home
Notes:
Nothing to report
RHEL-07-020620 (V-72015)¶
The Red Hat Enterprise Linux operating system must be configured so that all local interactive user home directories are defined in the /etc/passwd file.
Severity: Medium
Implementation Status: Implemented
Description:
If a local interactive user has a home directory defined that does not exist, the user may be given access to the / directory as the current working directory upon logon. This could create a Denial of Service because the user would not be able to access their logon configuration files, and it may give them visibility to system files they normally would not be able to access.
Variables:
rhel_07_020620
item.uid >= 1000
item.uid != 65534
Tags:
RHEL-07-020620
Notes:
Nothing to report
RHEL-07-020630 (V-72017)¶
The Red Hat Enterprise Linux operating system must be configured so that all local interactive user home directories have mode 0750 or less permissive.
Severity: Medium
Implementation Status: Implemented
Description:
Excessive permissions on local interactive user home directories may allow unauthorized access to user files by other users.
Variables:
rhel_07_020630
item.uid >= 1000
item.uid != 65534
Tags:
RHEL-07-020630
Notes:
Nothing to report
RHEL-07-020640 (V-72019)¶
The Red Hat Enterprise Linux operating system must be configured so that all local interactive user home directories are owned by their respective users.
Severity: Medium
Implementation Status: Implemented
Description:
If a local interactive user does not own their home directory, unauthorized users could access or modify the user’s files, and the users may not be able to access their own files.
Variables:
rhel_07_020640
item.uid >= 1000
item.uid != 65534
Tags:
RHEL-07-020640
Notes:
Nothing to report
RHEL-07-020650 (V-72021)¶
The Red Hat Enterprise Linux operating system must be configured so that all local interactive user home directories are group-owned by the home directory owners primary group.
Severity: Medium
Implementation Status: Implemented
Description:
If the Group Identifier (GID) of a local interactive user’s home directory is not the same as the primary GID of the user, this would allow unauthorized access to the user’s files, and users that share the same group may not be able to access files that they legitimately should.
Variables:
rhel_07_020650
item.uid >= 1000
item.uid != 65534
Tags:
RHEL-07-020650
Notes:
Nothing to report
RHEL-07-020660 (V-72023)¶
The Red Hat Enterprise Linux operating system must be configured so that all files and directories contained in local interactive user home directories are owned by the owner of the home directory.
Severity: Medium
Implementation Status: Implemented
Description:
If local interactive users do not own the files in their directories, unauthorized users may be able to access them. Additionally, if files are not owned by the user, this could be an indication of system compromise.
Variables:
rhel_07_020660
Tags:
RHEL-07-020660
Notes:
Nothing to report
RHEL-07-020670 (V-72025)¶
The Red Hat Enterprise Linux operating system must be configured so that all files and directories contained in local interactive user home directories are group-owned by a group of which the home directory owner is a member.
Severity: Medium
Implementation Status: Implemented
Description:
If a local interactive user’s files are group-owned by a group of which the user is not a member, unintended users may be able to access them.
Variables:
rhel_07_020670
Tags:
RHEL-07-020670
Notes:
Nothing to report
RHEL-07-020680 (V-72027)¶
The Red Hat Enterprise Linux operating system must be configured so that all files and directories contained in local interactive user home directories have a mode of 0750 or less permissive.
Severity: Medium
Implementation Status: Implemented
Description:
If a local interactive user files have excessive permissions, unintended users may be able to access or modify them.
Variables:
rhel_07_020680
Tags:
RHEL-07-020680
Notes:
Nothing to report
RHEL-07-020690 (V-72029)¶
The Red Hat Enterprise Linux operating system must be configured so that all local initialization files for interactive users are owned by the home directory user or root.
Severity: Medium
Implementation Status: Implemented
Description:
Local initialization files are used to configure the user’s shell environment upon logon. Malicious modification of these files could compromise accounts upon logon.
Variables:
rhel_07_020690
Tags:
RHEL-07-020690
Notes:
Nothing to report
RHEL-07-020700 (V-72031)¶
The Red Hat Enterprise Linux operating system must be configured so that all local initialization files for local interactive users are be group-owned by the users primary group or root.
Severity: Medium
Implementation Status: Implemented
Description:
Local initialization files for interactive users are used to configure the user’s shell environment upon logon. Malicious modification of these files could compromise accounts upon logon.
Variables:
rhel_07_020700
Tags:
RHEL-07-020700
Notes:
Nothing to report
RHEL-07-020710 (V-72033)¶
The Red Hat Enterprise Linux operating system must be configured so that all local initialization files have mode 0740 or less permissive.
Severity: Medium
Implementation Status: Not Implemented
Description:
Local initialization files are used to configure the user’s shell environment upon logon. Malicious modification of these files could compromise accounts upon logon.
Variables:
rhel_07_020710
Tags:
RHEL-07-020710
notimplemented
Notes:
Nothing to report
RHEL-07-020720 (V-72035)¶
The Red Hat Enterprise Linux operating system must be configured so that all local interactive user initialization files executable search paths contain only paths that resolve to the users home directory.
Severity: Medium
Implementation Status: Not Implemented
Description:
The executable search path (typically the PATH environment variable) contains a list of directories for the shell to search to find executables. If this path includes the current working directory (other than the user’s home directory), executables in these directories may be executed instead of system commands. This variable is formatted as a colon-separated list of directories. If there is an empty entry, such as a leading or trailing colon or two consecutive colons, this is interpreted as the current working directory. If deviations from the default system search path for the local interactive user are required, they must be documented with the Information System Security Officer (ISSO).
Variables:
rhel_07_020720
Tags:
RHEL-07-020720
notimplemented
Notes:
Nothing to report
RHEL-07-020730 (V-72037)¶
The Red Hat Enterprise Linux operating system must be configured so that local initialization files do not execute world-writable programs.
Severity: Medium
Implementation Status: Not Implemented
Description:
If user start-up files execute world-writable programs, especially in unprotected directories, they could be maliciously modified to destroy user files or otherwise compromise the system at the user level. If the system is compromised at the user level, it is easier to elevate privileges to eventually compromise the system at the root and network level.
Variables:
rhel_07_020730
Tags:
RHEL-07-020730
notimplemented
Notes:
Nothing to report
RHEL-07-020900 (V-72039)¶
The Red Hat Enterprise Linux operating system must be configured so that all system device files are correctly labeled to prevent unauthorized modification.
Severity: Medium
Implementation Status: Complexity High
Description:
If an unauthorized or modified device is allowed to exist on the system, there is the possibility the system may perform unintended or unauthorized operations.
Variables:
rhel_07_020900
rhel7stig_complex
ansible_selinux is not defined
rhel_07_020900
rhel7stig_complex
ansible_selinux.status == "enabled"
Tags:
RHEL-07-020900
complexity-high
Notes:
Nothing to report
RHEL-07-021000 (V-72041)¶
The Red Hat Enterprise Linux operating system must be configured so that file systems containing user home directories are mounted to prevent files with the setuid and setgid bit set from being executed.
Severity: Medium
Implementation Status: Implemented
Description:
The “nosuid” mount option causes the system to not execute setuid and setgid files with owner privileges. This option must be used for mounting any file system not containing approved setuid and setguid files. Executing files from untrusted file systems increases the opportunity for unprivileged users to attain unauthorized administrative access.
Variables:
rhel_07_021000
ansible_mounts | selectattr('mount', 'match', '^/home$') | list | length != 0
'nosuid' not in home_mount.options
Tags:
RHEL-07-021000
Notes:
Nothing to report
RHEL-07-021010 (V-72043)¶
The Red Hat Enterprise Linux operating system must prevent files with the setuid and setgid bit set from being executed on file systems that are used with removable media.
Severity: Medium
Implementation Status: Not Implemented
Description:
The “nosuid” mount option causes the system to not execute “setuid” and “setgid” files with owner privileges. This option must be used for mounting any file system not containing approved “setuid” and “setguid” files. Executing files from untrusted file systems increases the opportunity for unprivileged users to attain unauthorized administrative access.
Variables:
rhel_07_021010
Tags:
RHEL-07-021010
notimplemented
Notes:
Nothing to report
RHEL-07-021020 (V-72045)¶
The Red Hat Enterprise Linux operating system must prevent files with the setuid and setgid bit set from being executed on file systems that are being imported via Network File System (NFS).
Severity: Medium
Implementation Status: Implemented
Description:
The “nosuid” mount option causes the system to not execute “setuid” and “setgid” files with owner privileges. This option must be used for mounting any file system not containing approved “setuid” and “setguid” files. Executing files from untrusted file systems increases the opportunity for unprivileged users to attain unauthorized administrative access.
Variables:
rhel_07_021020
'nosuid' not in (ansible_mounts | json_query(options_query))
Tags:
RHEL-07-021020
Notes:
Nothing to report
RHEL-07-021021 (V-73161)¶
The Red Hat Enterprise Linux operating system must prevent binary files from being executed on file systems that are being imported via Network File System (NFS).
Severity: Medium
Implementation Status: Implemented
Description:
The “noexec” mount option causes the system to not execute binary files. This option must be used for mounting any file system not containing approved binary files as they may be incompatible. Executing files from untrusted file systems increases the opportunity for unprivileged users to attain unauthorized administrative access.
Variables:
rhel_07_021021
'noexec' not in (ansible_mounts | json_query(options_query))
Tags:
RHEL-07-021021
Notes:
Nothing to report
RHEL-07-021022 (V-81009)¶
The Red Hat Enterprise Linux operating system must mount /dev/shm with the nodev option.
Severity: Low
Implementation Status: Implemented
Description:
The “nodev” mount option causes the system to not interpret character or block special devices. Executing character or block special devices from untrusted file systems increases the opportunity for unprivileged users to attain unauthorized administrative access.
Variables:
rhel_07_021022 or rhel_07_021023 or rhel_07_021024
Tags:
RHEL-07-021022
RHEL-07-021023
RHEL-07-021024
Notes:
Nothing to report
RHEL-07-021023 (V-81011)¶
The Red Hat Enterprise Linux operating system must mount /dev/shm with the nosuid option.
Severity: Low
Implementation Status: Implemented
Description:
The “nosuid” mount option causes the system to not execute “setuid” and “setgid” files with owner privileges. This option must be used for mounting any file system not containing approved “setuid” and “setguid” files. Executing files from untrusted file systems increases the opportunity for unprivileged users to attain unauthorized administrative access.
Variables:
rhel_07_021022 or rhel_07_021023 or rhel_07_021024
Tags:
RHEL-07-021022
RHEL-07-021023
RHEL-07-021024
Notes:
Nothing to report
RHEL-07-021024 (V-81013)¶
The Red Hat Enterprise Linux operating system must mount /dev/shm with the noexec option.
Severity: Low
Implementation Status: Implemented
Description:
The “noexec” mount option causes the system to not execute binary files. This option must be used for mounting any file system not containing approved binary files as they may be incompatible. Executing files from untrusted file systems increases the opportunity for unprivileged users to attain unauthorized administrative access.
Variables:
rhel_07_021022 or rhel_07_021023 or rhel_07_021024
Tags:
RHEL-07-021022
RHEL-07-021023
RHEL-07-021024
Notes:
Nothing to report
RHEL-07-021030 (V-72047)¶
The Red Hat Enterprise Linux operating system must be configured so that all world-writable directories are group-owned by root, sys, bin, or an application group.
Severity: Medium
Implementation Status: Disruption High
Description:
If a world-writable directory has the sticky bit set and is not group-owned by a privileged Group Identifier (GID), unauthorized users may be able to modify files created by others.
The only authorized public directories are those temporary directories supplied with the system or those designed to be temporary file repositories. The setting is normally reserved for directories used by the system and by users for temporary file storage, (e.g., /tmp), and for directories requiring global read/write access.
Variables:
rhel_07_021030
rhel7stig_disruptive
Tags:
RHEL-07-021030
disruption-high
Notes:
Nothing to report
RHEL-07-021040 (V-72049)¶
The Red Hat Enterprise Linux operating system must set the umask value to 077 for all local interactive user accounts.
Severity: Medium
Implementation Status: Not Implemented
Description:
The umask controls the default access mode assigned to newly created files. A umask of 077 limits new files to mode 700 or less permissive. Although umask can be represented as a four-digit number, the first digit representing special access modes is typically ignored or required to be “0”. This requirement applies to the globally configured system defaults and the local interactive user defaults for each account on the system.
Variables:
rhel_07_021040
Tags:
RHEL-07-021040
notimplemented
Notes:
Nothing to report
RHEL-07-021100 (V-72051)¶
The Red Hat Enterprise Linux operating system must have cron logging implemented.
Severity: Medium
Implementation Status: Implemented
Description:
Cron logging can be used to trace the successful or unsuccessful execution of cron jobs. It can also be used to spot intrusions into the use of the cron facility by unauthorized and malicious users.
Variables:
rhel_07_021100
Tags:
RHEL-07-021100
Notes:
Nothing to report
RHEL-07-021110 (V-72053)¶
The Red Hat Enterprise Linux operating system must be configured so that the cron.allow file, if it exists, is owned by root.
Severity: Medium
Implementation Status: Implemented
Description:
If the owner of the “cron.allow” file is not set to root, the possibility exists for an unauthorized user to view or to edit sensitive information.
Variables:
rhel_07_021110
rhel_07_021120
Tags:
RHEL-07-021110
RHEL-07-021120
cron
Notes:
Nothing to report
RHEL-07-021120 (V-72055)¶
The Red Hat Enterprise Linux operating system must be configured so that the cron.allow file, if it exists, is group-owned by root.
Severity: Medium
Implementation Status: Implemented
Description:
If the group owner of the “cron.allow” file is not set to root, sensitive information could be viewed or edited by unauthorized users.
Variables:
rhel_07_021110
rhel_07_021120
Tags:
RHEL-07-021110
RHEL-07-021120
cron
Notes:
Nothing to report
RHEL-07-021300 (V-72057)¶
The Red Hat Enterprise Linux operating system must disable Kernel core dumps unless needed.
Severity: Medium
Implementation Status: Implemented
Description:
Kernel core dumps may contain the full contents of system memory at the time of the crash. Kernel core dumps may consume a considerable amount of disk space and may result in denial of service by exhausting the available space on the target file system partition.
Variables:
rhel_07_021300
Tags:
RHEL-07-021300
Notes:
Nothing to report
RHEL-07-021310 (V-72059)¶
The Red Hat Enterprise Linux operating system must be configured so that a separate file system is used for user home directories (such as /home or an equivalent).
Severity: Low
Implementation Status: Complexity High
Description:
The use of separate file systems for different paths can protect the system from failures resulting from a file system becoming full or failing.
Variables:
not rhel7stig_system_is_container
rhel_07_021310
rhel7stig_complex
ansible_mounts | selectattr('mount', 'match', '^/home$') | list | length == 0
Tags:
RHEL-07-021310
complexity-high
mount
home
Notes:
Nothing to report
RHEL-07-021320 (V-72061)¶
The Red Hat Enterprise Linux operating system must use a separate file system for /var.
Severity: Low
Implementation Status: Complexity High
Description:
The use of separate file systems for different paths can protect the system from failures resulting from a file system becoming full or failing.
Variables:
not rhel7stig_system_is_container
rhel_07_021320
rhel7stig_complex
ansible_mounts | selectattr('mount', 'match', '^/var$') | list | length == 0
Tags:
RHEL-07-021320
complexity-high
mount
var
Notes:
Nothing to report
RHEL-07-021330 (V-72063)¶
The Red Hat Enterprise Linux operating system must use a separate file system for the system audit data path.
Severity: Low
Implementation Status: Complexity High
Description:
The use of separate file systems for different paths can protect the system from failures resulting from a file system becoming full or failing.
Variables:
not rhel7stig_system_is_container
rhel_07_021330
rhel7stig_complex
ansible_mounts | selectattr('mount', 'match', '^/var/log/audit$') | list | length == 0
Tags:
RHEL-07-021330
complexity-high
mount
auditd
Notes:
Nothing to report
RHEL-07-021340 (V-72065)¶
The Red Hat Enterprise Linux operating system must use a separate file system for /tmp (or equivalent).
Severity: Low
Implementation Status: Implemented
Description:
The use of separate file systems for different paths can protect the system from failures resulting from a file system becoming full or failing.
Variables:
rhel_07_021340
not (rhel7stig_system_is_chroot and rhel7stig_system_is_container)
ansible_mounts | selectattr('mount', 'match', '^/tmp$') | list | length == 0
Tags:
RHEL-07-021340
mount
tmp
Notes:
Nothing to report
RHEL-07-021350 (V-72067)¶
The Red Hat Enterprise Linux operating system must implement NIST FIPS-validated cryptography for the following: to provision digital signatures, to generate cryptographic hashes, and to protect data requiring data-at-rest protections in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards.
Severity: High
Implementation Status: Implemented
Description:
Use of weak or untested encryption algorithms undermines the purposes of using encryption to protect data. The operating system must implement cryptographic modules adhering to the higher standards approved by the federal government since this provides assurance they have been tested and validated.
Satisfies: SRG-OS-000033-GPOS-00014, SRG-OS-000185-GPOS-00079, SRG-OS-000396-GPOS-00176, SRG-OS-000405-GPOS-00184, SRG-OS-000478-GPOS-00223
Variables:
rhel_07_021350
ansible_distribution_major_version == '7'
Tags:
RHEL-07-021350
Notes:
Nothing to report
RHEL-07-021600 (V-72069)¶
The Red Hat Enterprise Linux operating system must be configured so that the file integrity tool is configured to verify Access Control Lists (ACLs).
Severity: Low
Implementation Status: Not Implemented
Description:
ACLs can provide permissions beyond those permitted through the file mode and must be verified by file integrity tools.
Variables:
rhel_07_021600
Tags:
RHEL-07-021600
notimplemented
Notes:
Nothing to report
RHEL-07-021610 (V-72071)¶
The Red Hat Enterprise Linux operating system must be configured so that the file integrity tool is configured to verify extended attributes.
Severity: Low
Implementation Status: Not Implemented
Description:
Extended attributes in file systems are used to contain arbitrary data and file metadata with security implications.
Variables:
rhel_07_021610
Tags:
RHEL-07-021610
notimplemented
Notes:
Nothing to report
RHEL-07-021620 (V-72073)¶
The Red Hat Enterprise Linux operating system must use a file integrity tool that is configured to use FIPS 140-2 approved cryptographic hashes for validating file contents and directories.
Severity: Medium
Implementation Status: Implemented
Description:
File integrity tools use cryptographic hashes for verifying file contents and directories have not been altered. These hashes must be FIPS 140-2 approved cryptographic hashes.
Variables:
rhel_07_021620
Tags:
aide
RHEL-07-021620
Notes:
Nothing to report
RHEL-07-021700 (V-72075)¶
The Red Hat Enterprise Linux operating system must not allow removable media to be used as the boot loader unless approved.
Severity: Medium
Implementation Status: Not Implemented
Description:
Malicious users with removable boot media can gain access to a system configured to use removable media as the boot loader. If removable media is designed to be used as the boot loader, the requirement must be documented with the Information System Security Officer (ISSO).
Variables:
rhel_07_021700
Tags:
RHEL-07-021700
notimplemented
Notes:
Nothing to report
RHEL-07-021710 (V-72077)¶
The Red Hat Enterprise Linux operating system must not have the telnet-server package installed.
Severity: High
Implementation Status: Implemented
Description:
It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors.
Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions).
Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled.
Variables:
rhel_07_021710
Tags:
RHEL-07-021710
telnet
Notes:
Nothing to report
RHEL-07-030000 (V-72079)¶
The Red Hat Enterprise Linux operating system must be configured so that auditing is configured to produce records containing information to establish what type of events occurred, where the events occurred, the source of the events, and the outcome of the events. These audit records must also identify individual identities of group account users.
Severity: High
Implementation Status: Implemented
Description:
Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack.
Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked.
Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system.
Satisfies: SRG-OS-000038-GPOS-00016, SRG-OS-000039-GPOS-00017, SRG-OS-000042-GPOS-00021, SRG-OS-000254-GPOS-00095, SRG-OS-000255-GPOS-00096
Variables:
rhel_07_030000
Tags:
RHEL-07-030000
auditd
Notes:
Nothing to report
RHEL-07-030010 (V-72081)¶
The Red Hat Enterprise Linux operating system must shut down upon audit processing failure, unless availability is an overriding concern. If availability is a concern, the system must alert the designated staff (System Administrator [SA] and Information System Security Officer [ISSO] at a minimum) in the event of an audit processing failure.
Severity: Medium
Implementation Status: Implemented
Description:
It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required. Without this notification, the security personnel may be unaware of an impending failure of the audit capability, and system operation may be adversely affected.
Audit processing failures include software/hardware errors, failures in the audit capturing mechanisms, and audit storage capacity being reached or exceeded.
This requirement applies to each audit data storage repository (i.e., distinct information system component where audit records are stored), the centralized audit storage capacity of organizations (i.e., all audit data storage repositories combined), or both.
Satisfies: SRG-OS-000046-GPOS-00022, SRG-OS-000047-GPOS-00023
Variables:
rhel_07_030010
Tags:
auditd
RHEL-07-030010
Notes:
Nothing to report
RHEL-07-030200 (V-81015)¶
The Red Hat Enterprise Linux operating system must be configured to use the au-remote plugin.
Severity: Medium
Implementation Status: Implemented
Description:
Information stored in one location is vulnerable to accidental or incidental deletion or alteration.
Off-loading is a common process in information systems with limited audit storage capacity.
Without the configuration of the “au-remote” plugin, the audisp-remote daemon will not off-load the logs from the system being audited.
Satisfies: SRG-OS-000342-GPOS-00133, SRG-OS-000479-GPOS-00224
Variables:
rhel_07_030200
Tags:
auditd
RHEL-07-030200
Notes:
Nothing to report
RHEL-07-030201 (V-81017)¶
The Red Hat Enterprise Linux operating system must configure the au-remote plugin to off-load audit logs using the audisp-remote daemon.
Severity: Medium
Implementation Status: Not Implemented
Description:
Information stored in one location is vulnerable to accidental or incidental deletion or alteration.
Off-loading is a common process in information systems with limited audit storage capacity.
Without the configuration of the “au-remote” plugin, the audisp-remote daemon will not off load the logs from the system being audited.
Satisfies: SRG-OS-000342-GPOS-00133, SRG-OS-000479-GPOS-00224
Variables:
Tags:
Notes:
Nothing to report
RHEL-07-030210 (V-81019)¶
The Red Hat Enterprise Linux operating system must take appropriate action when the audisp-remote buffer is full.
Severity: Medium
Implementation Status: Not Implemented
Description:
Information stored in one location is vulnerable to accidental or incidental deletion or alteration.
Off-loading is a common process in information systems with limited audit storage capacity.
When the remote buffer is full, audit logs will not be collected and sent to the central log server.
Satisfies: SRG-OS-000342-GPOS-00133, SRG-OS-000479-GPOS-00224
Variables:
Tags:
Notes:
Nothing to report
RHEL-07-030211 (V-81021)¶
The Red Hat Enterprise Linux operating system must label all off-loaded audit logs before sending them to the central log server.
Severity: Medium
Implementation Status: Not Implemented
Description:
Information stored in one location is vulnerable to accidental or incidental deletion or alteration.
Off-loading is a common process in information systems with limited audit storage capacity.
When audit logs are not labeled before they are sent to a central log server, the audit data will not be able to be analyzed and tied back to the correct system.
Satisfies: SRG-OS-000342-GPOS-00133, SRG-OS-000479-GPOS-00224
Variables:
Tags:
Notes:
Nothing to report
RHEL-07-030300 (V-72083)¶
The Red Hat Enterprise Linux operating system must off-load audit records onto a different system or media from the system being audited.
Severity: Medium
Implementation Status: Implemented
Description:
Information stored in one location is vulnerable to accidental or incidental deletion or alteration.
Off-loading is a common process in information systems with limited audit storage capacity.
Satisfies: SRG-OS-000342-GPOS-00133, SRG-OS-000479-GPOS-00224
Variables:
rhel_07_030300 and rhel7stig_audisp_remote_server
Tags:
auditd
RHEL-07-030300
Notes:
Nothing to report
RHEL-07-030310 (V-72085)¶
The Red Hat Enterprise Linux operating system must encrypt the transfer of audit records off-loaded onto a different system or media from the system being audited.
Severity: Medium
Implementation Status: Implemented
Description:
Information stored in one location is vulnerable to accidental or incidental deletion or alteration.
Off-loading is a common process in information systems with limited audit storage capacity.
Satisfies: SRG-OS-000342-GPOS-00133, SRG-OS-000479-GPOS-00224
Variables:
rhel_07_030310
Tags:
auditd
RHEL-07-030310
Notes:
Nothing to report
RHEL-07-030320 (V-72087)¶
The Red Hat Enterprise Linux operating system must be configured so that the audit system takes appropriate action when the audit storage volume is full.
Severity: Medium
Implementation Status: Implemented
Description:
Taking appropriate action in case of a filled audit storage volume will minimize the possibility of losing audit records.
Variables:
rhel_07_030320
Tags:
auditd
RHEL-07-030320
Notes:
Nothing to report
RHEL-07-030321 (V-73163)¶
The Red Hat Enterprise Linux operating system must be configured so that the audit system takes appropriate action when there is an error sending audit records to a remote system.
Severity: Medium
Implementation Status: Implemented
Description:
Taking appropriate action when there is an error sending audit records to a remote system will minimize the possibility of losing audit records.
Variables:
rhel_07_030321
Tags:
auditd
RHEL-07-030321
Notes:
Nothing to report
RHEL-07-030330 (V-72089)¶
The Red Hat Enterprise Linux operating system must initiate an action to notify the System Administrator (SA) and Information System Security Officer ISSO, at a minimum, when allocated audit record storage volume reaches 75% of the repository maximum audit record storage capacity.
Severity: Medium
Implementation Status: Implemented
Description:
If security personnel are not notified immediately when storage volume reaches 75 percent utilization, they are unable to plan for audit record storage capacity expansion.
Variables:
rhel_07_030330
Tags:
auditd
RHEL-07-030330
Notes:
Nothing to report
RHEL-07-030340 (V-72091)¶
The Red Hat Enterprise Linux operating system must immediately notify the System Administrator (SA) and Information System Security Officer (ISSO) (at a minimum) via email when the threshold for the repository maximum audit record storage capacity is reached.
Severity: Medium
Implementation Status: Implemented
Description:
If security personnel are not notified immediately when the threshold for the repository maximum audit record storage capacity is reached, they are unable to expand the audit record storage capacity before records are lost.
Variables:
rhel_07_030340
Tags:
auditd
RHEL-07-030340
Notes:
Nothing to report
RHEL-07-030350 (V-72093)¶
The Red Hat Enterprise Linux operating system must immediately notify the System Administrator (SA) and Information System Security Officer (ISSO) (at a minimum) when the threshold for the repository maximum audit record storage capacity is reached.
Severity: Medium
Implementation Status: Implemented
Description:
If security personnel are not notified immediately when the threshold for the repository maximum audit record storage capacity is reached, they are unable to expand the audit record storage capacity before records are lost.
Variables:
rhel_07_030350
Tags:
auditd
RHEL-07-030350
Notes:
Nothing to report
RHEL-07-030360 (V-72095)¶
The Red Hat Enterprise Linux operating system must audit all executions of privileged functions.
Severity: Medium
Implementation Status: Implemented
Description:
Misuse of privileged functions, either intentionally or unintentionally by authorized users, or by unauthorized external entities that have compromised information system accounts, is a serious and ongoing concern and can have significant adverse impacts on organizations. Auditing the use of privileged functions is one way to detect such misuse and identify the risk from insider threats and the advanced persistent threat.
Variables:
rhel_07_030360
Tags:
audit-rules
RHEL-07-030360
Notes:
Nothing to report
RHEL-07-030370 (V-72097)¶
The Red Hat Enterprise Linux operating system must audit all uses of the chown syscall.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000064-GPOS-00033, SRG-OS-000392-GPOS-00172, SRG-OS-000458-GPOS-00203, SRG-OS-000474-GPOS-00219
Variables:
rhel_07_030370
Tags:
Notes:
Nothing to report
RHEL-07-030380 (V-72099)¶
The Red Hat Enterprise Linux operating system must audit all uses of the fchown syscall.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000064-GPOS-00033, SRG-OS-000392-GPOS-00172, SRG-OS-000458-GPOS-00203, SRG-OS-000474-GPOS-00219
Variables:
rhel_07_030380
Tags:
Notes:
Nothing to report
RHEL-07-030390 (V-72101)¶
The Red Hat Enterprise Linux operating system must audit all uses of the lchown syscall.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000064-GPOS-00033, SRG-OS-000392-GPOS-00172, SRG-OS-000458-GPOS-00203, SRG-OS-000474-GPOS-00219
Variables:
rhel_07_030390
Tags:
Notes:
Nothing to report
RHEL-07-030400 (V-72103)¶
The Red Hat Enterprise Linux operating system must audit all uses of the fchownat syscall.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000064-GPOS-00033, SRG-OS-000392-GPOS-00172, SRG-OS-000458-GPOS-00203, SRG-OS-000474-GPOS-00219
Variables:
rhel_07_030400
Tags:
Notes:
Nothing to report
RHEL-07-030410 (V-72105)¶
The Red Hat Enterprise Linux operating system must audit all uses of the chmod syscall.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000458-GPOS-00203, SRG-OS-000392-GPOS-00172, SRG-OS-000064-GPOS-00033
Variables:
rhel_07_030410
Tags:
Notes:
Nothing to report
RHEL-07-030420 (V-72107)¶
The Red Hat Enterprise Linux operating system must audit all uses of the fchmod syscall.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000458-GPOS-00203, SRG-OS-000392-GPOS-00172, SRG-OS-000064-GPOS-00033
Variables:
rhel_07_030420
Tags:
Notes:
Nothing to report
RHEL-07-030430 (V-72109)¶
The Red Hat Enterprise Linux operating system must audit all uses of the fchmodat syscall.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000458-GPOS-00203, SRG-OS-000392-GPOS-00172, SRG-OS-000064-GPOS-00033
Variables:
rhel_07_030430
Tags:
Notes:
Nothing to report
RHEL-07-030440 (V-72111)¶
The Red Hat Enterprise Linux operating system must audit all uses of the setxattr syscall.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000458-GPOS-00203, SRG-OS-000392-GPOS-00172, SRG-OS-000064-GPOS-00033
Variables:
rhel_07_030440
Tags:
Notes:
Nothing to report
RHEL-07-030450 (V-72113)¶
The Red Hat Enterprise Linux operating system must audit all uses of the fsetxattr syscall.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000458-GPOS-00203, SRG-OS-000392-GPOS-00172, SRG-OS-000064-GPOS-00033
Variables:
rhel_07_030450
Tags:
Notes:
Nothing to report
RHEL-07-030460 (V-72115)¶
The Red Hat Enterprise Linux operating system must audit all uses of the lsetxattr syscall.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000458-GPOS-00203, SRG-OS-000392-GPOS-00172, SRG-OS-000064-GPOS-00033
Variables:
rhel_07_030460
Tags:
Notes:
Nothing to report
RHEL-07-030470 (V-72117)¶
The Red Hat Enterprise Linux operating system must audit all uses of the removexattr syscall.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000458-GPOS-00203, SRG-OS-000392-GPOS-00172, SRG-OS-000064-GPOS-00033
Variables:
rhel_07_030470
Tags:
Notes:
Nothing to report
RHEL-07-030480 (V-72119)¶
The Red Hat Enterprise Linux operating system must audit all uses of the fremovexattr syscall.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000458-GPOS-00203, SRG-OS-000392-GPOS-00172, SRG-OS-000064-GPOS-00033
Variables:
rhel_07_030480
Tags:
Notes:
Nothing to report
RHEL-07-030490 (V-72121)¶
The Red Hat Enterprise Linux operating system must audit all uses of the lremovexattr syscall.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000458-GPOS-00203, SRG-OS-000392-GPOS-00172, SRG-OS-000064-GPOS-00033
Variables:
rhel_07_030490
Tags:
Notes:
Nothing to report
RHEL-07-030500 (V-72123)¶
The Red Hat Enterprise Linux operating system must audit all uses of the creat syscall.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000064-GPOS-00033, SRG-OS-000458-GPOS-00203, SRG-OS-000461-GPOS-00205, SRG-OS-000392-GPOS-00172
Variables:
rhel_07_030500
rhel_07_030500
Tags:
Notes:
Nothing to report
RHEL-07-030510 (V-72125)¶
The Red Hat Enterprise Linux operating system must audit all uses of the open syscall.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000064-GPOS-00033, SRG-OS-000458-GPOS-00203, SRG-OS-000461-GPOS-00205, SRG-OS-000392-GPOS-00172
Variables:
rhel_07_030510
rhel_07_030510
Tags:
Notes:
Nothing to report
RHEL-07-030520 (V-72127)¶
The Red Hat Enterprise Linux operating system must audit all uses of the openat syscall.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000064-GPOS-00033, SRG-OS-000458-GPOS-00203, SRG-OS-000461-GPOS-00205, SRG-OS-000392-GPOS-00172
Variables:
rhel_07_030520
rhel_07_030520
Tags:
Notes:
Nothing to report
RHEL-07-030530 (V-72129)¶
The Red Hat Enterprise Linux operating system must audit all uses of the open_by_handle_at syscall.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000064-GPOS-00033, SRG-OS-000458-GPOS-00203, SRG-OS-000461-GPOS-00205, SRG-OS-000392-GPOS-00172
Variables:
rhel_07_030530
rhel_07_030530
Tags:
Notes:
Nothing to report
RHEL-07-030540 (V-72131)¶
The Red Hat Enterprise Linux operating system must audit all uses of the truncate syscall.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000064-GPOS-00033, SRG-OS-000458-GPOS-00203, SRG-OS-000461-GPOS-00205, SRG-OS-000392-GPOS-00172
Variables:
rhel_07_030540
rhel_07_030540
Tags:
Notes:
Nothing to report
RHEL-07-030550 (V-72133)¶
The Red Hat Enterprise Linux operating system must audit all uses of the ftruncate syscall.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000064-GPOS-00033, SRG-OS-000458-GPOS-00203, SRG-OS-000461-GPOS-00205, SRG-OS-000392-GPOS-00172
Variables:
rhel_07_030550
rhel_07_030550
Tags:
Notes:
Nothing to report
RHEL-07-030560 (V-72135)¶
The Red Hat Enterprise Linux operating system must audit all uses of the semanage command.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000392-GPOS-00172, SRG-OS-000463-GPOS-00207, SRG-OS-000465-GPOS-00209
Variables:
rhel_07_030560
Tags:
Notes:
Nothing to report
RHEL-07-030570 (V-72137)¶
The Red Hat Enterprise Linux operating system must audit all uses of the setsebool command.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000392-GPOS-00172, SRG-OS-000463-GPOS-00207, SRG-OS-000465-GPOS-00209
Variables:
rhel_07_030570
Tags:
Notes:
Nothing to report
RHEL-07-030580 (V-72139)¶
The Red Hat Enterprise Linux operating system must audit all uses of the chcon command.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000392-GPOS-00172, SRG-OS-000463-GPOS-00207, SRG-OS-000465-GPOS-00209
Variables:
rhel_07_030580
Tags:
Notes:
Nothing to report
RHEL-07-030590 (V-72141)¶
The Red Hat Enterprise Linux operating system must audit all uses of the setfiles command.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000392-GPOS-00172, SRG-OS-000463-GPOS-00207, SRG-OS-000465-GPOS-00209
Variables:
rhel_07_030590
Tags:
Notes:
Nothing to report
RHEL-07-030610 (V-72145)¶
The Red Hat Enterprise Linux operating system must generate audit records for all unsuccessful account access events.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000392-GPOS-00172, SRG-OS-000470-GPOS-00214, SRG-OS-000473-GPOS-00218
Variables:
rhel_07_030610
Tags:
Notes:
Nothing to report
RHEL-07-030620 (V-72147)¶
The Red Hat Enterprise Linux operating system must generate audit records for all successful account access events.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000392-GPOS-00172, SRG-OS-000470-GPOS-00214, SRG-OS-000473-GPOS-00218
Variables:
rhel_07_030620
Tags:
Notes:
Nothing to report
RHEL-07-030630 (V-72149)¶
The Red Hat Enterprise Linux operating system must audit all uses of the passwd command.
Severity: Medium
Implementation Status: Implemented
Description:
Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information.
At a minimum, the organization must audit the full-text recording of privileged password commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise.
Satisfies: SRG-OS-000042-GPOS-00020, SRG-OS-000392-GPOS-00172, SRG-OS-000471-GPOS-00215
Variables:
rhel_07_030630
Tags:
Notes:
Nothing to report
RHEL-07-030640 (V-72151)¶
The Red Hat Enterprise Linux operating system must audit all uses of the unix_chkpwd command.
Severity: Medium
Implementation Status: Implemented
Description:
Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information.
At a minimum, the organization must audit the full-text recording of privileged password commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise.
Satisfies: SRG-OS-000042-GPOS-00020, SRG-OS-000392-GPOS-00172, SRG-OS-000471-GPOS-00215
Variables:
rhel_07_030640
Tags:
Notes:
Nothing to report
RHEL-07-030650 (V-72153)¶
The Red Hat Enterprise Linux operating system must audit all uses of the gpasswd command.
Severity: Medium
Implementation Status: Implemented
Description:
Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information.
At a minimum, the organization must audit the full-text recording of privileged password commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise.
Satisfies: SRG-OS-000042-GPOS-00020, SRG-OS-000392-GPOS-00172, SRG-OS-000471-GPOS-00215
Variables:
rhel_07_030650
Tags:
Notes:
Nothing to report
RHEL-07-030660 (V-72155)¶
The Red Hat Enterprise Linux operating system must audit all uses of the chage command.
Severity: Medium
Implementation Status: Implemented
Description:
Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information.
At a minimum, the organization must audit the full-text recording of privileged password commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise.
Satisfies: SRG-OS-000042-GPOS-00020, SRG-OS-000392-GPOS-00172, SRG-OS-000471-GPOS-00215
Variables:
rhel_07_030660
Tags:
Notes:
Nothing to report
RHEL-07-030670 (V-72157)¶
The Red Hat Enterprise Linux operating system must audit all uses of the userhelper command.
Severity: Medium
Implementation Status: Implemented
Description:
Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information.
At a minimum, the organization must audit the full-text recording of privileged password commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise.
Satisfies: SRG-OS-000042-GPOS-00020, SRG-OS-000392-GPOS-00172, SRG-OS-000471-GPOS-00215
Variables:
rhel_07_030670
Tags:
Notes:
Nothing to report
RHEL-07-030680 (V-72159)¶
The Red Hat Enterprise Linux operating system must audit all uses of the su command.
Severity: Medium
Implementation Status: Implemented
Description:
Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information.
At a minimum, the organization must audit the full-text recording of privileged access commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise.
Satisfies: SRG-OS-000037-GPOS-00015, SRG-OS-000042-GPOS-00020, SRG-OS-000392-GPOS-00172, SRG-OS-000462-GPOS-00206, SRG-OS-000471-GPOS-00215
Variables:
rhel_07_030680
Tags:
Notes:
Nothing to report
RHEL-07-030690 (V-72161)¶
The Red Hat Enterprise Linux operating system must audit all uses of the sudo command.
Severity: Medium
Implementation Status: Implemented
Description:
Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information.
At a minimum, the organization must audit the full-text recording of privileged access commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise.
Satisfies: SRG-OS-000037-GPOS-00015, SRG-OS-000042-GPOS-00020, SRG-OS-000392-GPOS-00172, SRG-OS-000462-GPOS-00206, SRG-OS-000471-GPOS-00215
Variables:
rhel_07_030690
Tags:
Notes:
Nothing to report
RHEL-07-030700 (V-72163)¶
The Red Hat Enterprise Linux operating system must audit all uses of the sudoers file and all files in the /etc/sudoers.d/ directory.
Severity: Medium
Implementation Status: Implemented
Description:
Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information.
At a minimum, the organization must audit the full-text recording of privileged access commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise.
Satisfies: SRG-OS-000037-GPOS-00015, SRG-OS-000042-GPOS-00020, SRG-OS-000392-GPOS-00172, SRG-OS-000462-GPOS-00206, SRG-OS-000471-GPOS-00215
Variables:
rhel_07_030700
rhel_07_030700
Tags:
Notes:
Nothing to report
RHEL-07-030710 (V-72165)¶
The Red Hat Enterprise Linux operating system must audit all uses of the newgrp command.
Severity: Medium
Implementation Status: Implemented
Description:
Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information.
At a minimum, the organization must audit the full-text recording of privileged access commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise.
Satisfies: SRG-OS-000037-GPOS-00015, SRG-OS-000042-GPOS-00020, SRG-OS-000392-GPOS-00172, SRG-OS-000462-GPOS-00206, SRG-OS-000471-GPOS-00215
Variables:
rhel_07_030710
Tags:
Notes:
Nothing to report
RHEL-07-030720 (V-72167)¶
The Red Hat Enterprise Linux operating system must audit all uses of the chsh command.
Severity: Medium
Implementation Status: Implemented
Description:
Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information.
At a minimum, the organization must audit the full-text recording of privileged access commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise.
Satisfies: SRG-OS-000037-GPOS-00015, SRG-OS-000042-GPOS-00020, SRG-OS-000392-GPOS-00172, SRG-OS-000462-GPOS-00206, SRG-OS-000471-GPOS-00215
Variables:
rhel_07_030720
Tags:
Notes:
Nothing to report
RHEL-07-030740 (V-72171)¶
The Red Hat Enterprise Linux operating system must audit all uses of the mount command and syscall.
Severity: Medium
Implementation Status: Implemented
Description:
Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information.
At a minimum, the organization must audit the full-text recording of privileged mount commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise.
Satisfies: SRG-OS-000042-GPOS-00020, SRG-OS-000392-GPOS-00172
Variables:
rhel_07_030740
Tags:
Notes:
Nothing to report
RHEL-07-030750 (V-72173)¶
The Red Hat Enterprise Linux operating system must audit all uses of the umount command.
Severity: Medium
Implementation Status: Implemented
Description:
Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information.
At a minimum, the organization must audit the full-text recording of privileged mount commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise.
Satisfies: SRG-OS-000042-GPOS-00020, SRG-OS-000392-GPOS-00172
Variables:
rhel_07_030750
Tags:
Notes:
Nothing to report
RHEL-07-030760 (V-72175)¶
The Red Hat Enterprise Linux operating system must audit all uses of the postdrop command.
Severity: Medium
Implementation Status: Implemented
Description:
Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information.
At a minimum, the organization must audit the full-text recording of privileged postfix commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise.
Satisfies: SRG-OS-000042-GPOS-00020, SRG-OS-000392-GPOS-00172
Variables:
rhel_07_030760
Tags:
Notes:
Nothing to report
RHEL-07-030770 (V-72177)¶
The Red Hat Enterprise Linux operating system must audit all uses of the postqueue command.
Severity: Medium
Implementation Status: Implemented
Description:
Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information.
At a minimum, the organization must audit the full-text recording of privileged postfix commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise.
Satisfies: SRG-OS-000042-GPOS-00020, SRG-OS-000392-GPOS-00172
Variables:
rhel_07_030770
Tags:
Notes:
Nothing to report
RHEL-07-030780 (V-72179)¶
The Red Hat Enterprise Linux operating system must audit all uses of the ssh-keysign command.
Severity: Medium
Implementation Status: Implemented
Description:
Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information.
At a minimum, the organization must audit the full-text recording of privileged ssh commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise.
Satisfies: SRG-OS-000042-GPOS-00020, SRG-OS-000392-GPOS-00172, SRG-OS-000471-GPOS-00215
Variables:
rhel_07_030780
Tags:
Notes:
Nothing to report
RHEL-07-030800 (V-72183)¶
The Red Hat Enterprise Linux operating system must audit all uses of the crontab command.
Severity: Medium
Implementation Status: Implemented
Description:
Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information.
At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise.
Satisfies: SRG-OS-000042-GPOS-00020, SRG-OS-000392-GPOS-00172, SRG-OS-000471-GPOS-00215
Variables:
rhel_07_030800
Tags:
Notes:
Nothing to report
RHEL-07-030810 (V-72185)¶
The Red Hat Enterprise Linux operating system must audit all uses of the pam_timestamp_check command.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Variables:
rhel_07_030810
Tags:
Notes:
Nothing to report
RHEL-07-030819 (V-78999)¶
The Red Hat Enterprise Linux operating system must audit all uses of the create_module syscall.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000471-GPOS-00216, SRG-OS-000477-GPOS-00222
Variables:
rhel_07_030819
Tags:
Notes:
Nothing to report
RHEL-07-030820 (V-72187)¶
The Red Hat Enterprise Linux operating system must audit all uses of the init_module syscall.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000471-GPOS-00216, SRG-OS-000477-GPOS-00222
Variables:
rhel_07_030820
Tags:
Notes:
Nothing to report
RHEL-07-030821 (V-79001)¶
The Red Hat Enterprise Linux operating system must audit all uses of the finit_module syscall.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000471-GPOS-00216, SRG-OS-000477-GPOS-00222
Variables:
rhel_07_030821
Tags:
Notes:
Nothing to report
RHEL-07-030830 (V-72189)¶
The Red Hat Enterprise Linux operating system must audit all uses of the delete_module syscall.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000471-GPOS-00216, SRG-OS-000477-GPOS-00222
Variables:
rhel_07_030830
Tags:
Notes:
Nothing to report
RHEL-07-030840 (V-72191)¶
The Red Hat Enterprise Linux operating system must audit all uses of the kmod command.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000471-GPOS-00216, SRG-OS-000477-GPOS-00222
Variables:
rhel_07_030840
Tags:
Notes:
Nothing to report
RHEL-07-030870 (V-72197)¶
The Red Hat Enterprise Linux operating system must generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/passwd.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Satisfies: SRG-OS-000004-GPOS-00004, SRG-OS-000239-GPOS-00089, SRG-OS-000240-GPOS-00090, SRG-OS-000241-GPOS-00091, SRG-OS-000303-GPOS-00120, SRG-OS-000476-GPOS-00221
Variables:
rhel_07_030870
Tags:
Notes:
Nothing to report
RHEL-07-030871 (V-73165)¶
The Red Hat Enterprise Linux operating system must generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/group.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Variables:
rhel_07_030871
Tags:
Notes:
Nothing to report
RHEL-07-030872 (V-73167)¶
The Red Hat Enterprise Linux operating system must generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/gshadow.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Variables:
rhel_07_030872
Tags:
Notes:
Nothing to report
RHEL-07-030873 (V-73171)¶
The Red Hat Enterprise Linux operating system must generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/shadow.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Variables:
rhel_07_030873
Tags:
Notes:
Nothing to report
RHEL-07-030874 (V-73173)¶
The Red Hat Enterprise Linux operating system must generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/opasswd.
Severity: Medium
Implementation Status: Implemented
Description:
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one.
Audit records can be generated from various components within the information system (e.g., module or policy filter).
Variables:
rhel_07_030874
Tags:
Notes:
Nothing to report
RHEL-07-030880 (V-72199)¶
The Red Hat Enterprise Linux operating system must audit all uses of the rename syscall.
Severity: Medium
Implementation Status: Implemented
Description:
If the system is not configured to audit certain activities and write them to an audit log, it is more difficult to detect and track system compromises and damages incurred during a system compromise.
Variables:
rhel_07_030880
Tags:
Notes:
Nothing to report
RHEL-07-030890 (V-72201)¶
The Red Hat Enterprise Linux operating system must audit all uses of the renameat syscall.
Severity: Medium
Implementation Status: Implemented
Description:
If the system is not configured to audit certain activities and write them to an audit log, it is more difficult to detect and track system compromises and damages incurred during a system compromise.
Variables:
rhel_07_030890
Tags:
Notes:
Nothing to report
RHEL-07-030900 (V-72203)¶
The Red Hat Enterprise Linux operating system must audit all uses of the rmdir syscall.
Severity: Medium
Implementation Status: Implemented
Description:
If the system is not configured to audit certain activities and write them to an audit log, it is more difficult to detect and track system compromises and damages incurred during a system compromise.
Variables:
rhel_07_030900
Tags:
Notes:
Nothing to report
RHEL-07-030910 (V-72205)¶
The Red Hat Enterprise Linux operating system must audit all uses of the unlink syscall.
Severity: Medium
Implementation Status: Implemented
Description:
If the system is not configured to audit certain activities and write them to an audit log, it is more difficult to detect and track system compromises and damages incurred during a system compromise.
Variables:
rhel_07_030910
Tags:
Notes:
Nothing to report
RHEL-07-030920 (V-72207)¶
The Red Hat Enterprise Linux operating system must audit all uses of the unlinkat syscall.
Severity: Medium
Implementation Status: Implemented
Description:
If the system is not configured to audit certain activities and write them to an audit log, it is more difficult to detect and track system compromises and damages incurred during a system compromise.
Variables:
rhel_07_030920
Tags:
Notes:
Nothing to report
RHEL-07-031000 (V-72209)¶
The Red Hat Enterprise Linux operating system must send rsyslog output to a log aggregation server.
Severity: Medium
Implementation Status: Implemented
Description:
Sending rsyslog output to another system ensures that the logs cannot be removed or modified in the event that the system is compromised or has a hardware failure.
Variables:
rhel_07_031000
rhel7stig_log_aggregation_server is defined
Tags:
RHEL-07-031000
rsyslog
Notes:
Nothing to report
RHEL-07-031010 (V-72211)¶
The Red Hat Enterprise Linux operating system must be configured so that the rsyslog daemon does not accept log messages from other servers unless the server is being used for log aggregation.
Severity: Medium
Implementation Status: Implemented
Description:
Unintentionally running a rsyslog server accepting remote messages puts the system at increased risk. Malicious rsyslog messages sent to the server could exploit vulnerabilities in the server software itself, could introduce misleading information in to the system’s logs, or could fill the system’s storage leading to a Denial of Service.
If the system is intended to be a log aggregation server its use must be documented with the ISSO.
Variables:
rhel_07_031010
not rhel7stig_system_is_log_aggregator
Tags:
RHEL-07-031010
rsyslog
Notes:
Nothing to report
RHEL-07-032000 (V-72213)¶
The Red Hat Enterprise Linux operating system must use a virus scan program.
Severity: High
Implementation Status: Implemented
Description:
Virus scanning software can be used to protect a system from penetration from computer viruses and to limit their spread through intermediate systems.
The virus scanning software should be configured to perform scans dynamically on accessed files. If this capability is not available, the system must be configured to scan, at a minimum, all altered files on the system on a daily basis.
If the system processes inbound SMTP mail, the virus scanner must be configured to scan all received mail.
Variables:
rhel7stig_antivirus_required
rhel_07_032000
Tags:
RHEL-07-032000
antivirus
Notes:
Nothing to report
RHEL-07-040000 (V-72217)¶
The Red Hat Enterprise Linux operating system must limit the number of concurrent sessions to 10 for all accounts and/or account types.
Severity: Low
Implementation Status: Implemented
Description:
Operating system management includes the ability to control the number of users and user sessions that utilize an operating system. Limiting the number of allowed users and sessions per user is helpful in reducing the risks related to DoS attacks.
This requirement addresses concurrent sessions for information system accounts and does not address concurrent sessions by single users via multiple system accounts. The maximum number of concurrent sessions should be defined based on mission needs and the operational environment for each system.
Variables:
rhel_07_040000
Tags:
RHEL-07-040000
Notes:
Nothing to report
RHEL-07-040100 (V-72219)¶
The Red Hat Enterprise Linux operating system must be configured to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the Ports, Protocols, and Services Management Component Local Service Assessment (PPSM CLSA) and vulnerability assessments.
Severity: Medium
Implementation Status: Not Implemented
Description:
In order to prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e., embedding of data types within data types), organizations must disable or restrict unused or unnecessary physical and logical ports/protocols on information systems.
Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services provided by default may not be necessary to support essential organizational operations. Additionally, it is sometimes convenient to provide multiple services from a single component (e.g., VPN and IPS); however, doing so increases risk over limiting the services provided by any one component.
To support the requirements and principles of least functionality, the operating system must support the organizational requirements, providing only essential capabilities and limiting the use of ports, protocols, and/or services to only those required, authorized, and approved to conduct official business or to address authorized quality of life issues.
Satisfies: SRG-OS-000096-GPOS-00050, SRG-OS-000297-GPOS-00115
Variables:
rhel_07_040100
Tags:
RHEL-07-040100
notimplemented
Notes:
Nothing to report
RHEL-07-040110 (V-72221)¶
The Red Hat Enterprise Linux operating system must use a FIPS 140-2 approved cryptographic algorithm for SSH communications.
Severity: Medium
Implementation Status: Implemented
Description:
Unapproved mechanisms that are used for authentication to the cryptographic module are not verified and therefore cannot be relied upon to provide confidentiality or integrity, and DoD data may be compromised.
Operating systems utilizing encryption are required to use FIPS-compliant mechanisms for authenticating to cryptographic modules.
FIPS 140-2 is the current standard for validating that mechanisms used to access cryptographic modules utilize authentication that meets DoD requirements. This allows for Security Levels 1, 2, 3, or 4 for use on a general purpose computing system.
Satisfies: SRG-OS-000033-GPOS-00014, SRG-OS-000120-GPOS-00061, SRG-OS-000125-GPOS-00065, SRG-OS-000250-GPOS-00093, SRG-OS-000393-GPOS-00173
Variables:
rhel_07_040110
rhel7stig_ssh_required
Tags:
RHEL-07-040110
ssh
Notes:
Nothing to report
RHEL-07-040160 (V-72223)¶
The Red Hat Enterprise Linux operating system must be configured so that all network connections associated with a communication session are terminated at the end of the session or after 10 minutes of inactivity from the user at a command prompt, except to fulfill documented and validated mission requirements.
Severity: Medium
Implementation Status: Implemented
Description:
Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take control of a management session enabled on the console or console port that has been left unattended. In addition, quickly terminating an idle session will also free up resources committed by the managed network element.
Terminating network connections associated with communications sessions includes, for example, de-allocating associated TCP/IP address/port pairs at the operating system level and de-allocating networking assignments at the application level if multiple application sessions are using a single operating system-level network connection. This does not mean that the operating system terminates all sessions or network access; it only ends the inactive session and releases the resources associated with that session.
Variables:
rhel_07_040160
Tags:
RHEL-07-040160
profile
Notes:
Nothing to report
RHEL-07-040170 (V-72225)¶
The Red Hat Enterprise Linux operating system must display the Standard Mandatory DoD Notice and Consent Banner immediately prior to, or as part of, remote access logon prompts.
Severity: Medium
Implementation Status: Implemented
Description:
Display of a standardized and approved use notification before granting access to the publicly accessible operating system ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance.
System use notifications are required only for access via logon interfaces with human users and are not required when such human interfaces do not exist.
The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters:
You are accessing a U.S. Government (USG) Information System (IS)
that is provided for USG-authorized use only.
By using this IS (which includes any device attached to this IS),
you consent to the following conditions:
-The USG routinely intercepts and monitors communications on this
IS for purposes including, but not limited to, penetration
testing, COMSEC monitoring, network operations and defense,
personnel misconduct (PM), law enforcement (LE), and
counterintelligence (CI) investigations.
-At any time, the USG may inspect and seize data stored on this
IS.
-Communications using, or data stored on, this IS are not private,
are subject to routine monitoring, interception, and search, and
may be disclosed or used for any USG-authorized purpose.
-This IS includes security measures (e.g., authentication and
access controls) to protect USG interests--not for your personal
benefit or privacy.
-Notwithstanding the above, using this IS does not constitute
consent to PM, LE or CI investigative searching or monitoring of
the content of privileged communications, or work product,
related to personal representation or services by attorneys,
psychotherapists, or clergy, and their assistants. Such
communications and work product are private and confidential. See
User Agreement for details.
Satisfies: SRG-OS-000023-GPOS-00006, SRG-OS-000024-GPOS-00007 , SRG-OS-000228-GPOS-00088
Variables:
rhel_07_040170
rhel7stig_ssh_required
Tags:
RHEL-07-040170
ssh
dod_logon_banner
Notes:
Nothing to report
RHEL-07-040180 (V-72227)¶
The Red Hat Enterprise Linux operating system must implement cryptography to protect the integrity of Lightweight Directory Access Protocol (LDAP) authentication communications.
Severity: Medium
Implementation Status: Not Implemented
Description:
Without cryptographic integrity protections, information can be altered by unauthorized users without detection.
Cryptographic mechanisms used for protecting the integrity of information include, for example, signed hash functions using asymmetric cryptography enabling distribution of the public key to verify the hash information while maintaining the confidentiality of the key used to generate the hash.
Variables:
rhel_07_040180
Tags:
RHEL-07-040180
ldap
notimplemented
Notes:
Nothing to report
RHEL-07-040190 (V-72229)¶
The Red Hat Enterprise Linux operating system must implement cryptography to protect the integrity of Lightweight Directory Access Protocol (LDAP) communications.
Severity: Medium
Implementation Status: Not Implemented
Description:
Without cryptographic integrity protections, information can be altered by unauthorized users without detection.
Cryptographic mechanisms used for protecting the integrity of information include, for example, signed hash functions using asymmetric cryptography enabling distribution of the public key to verify the hash information while maintaining the confidentiality of the key used to generate the hash.
Variables:
rhel_07_040190
Tags:
RHEL-07-040190
notimplemented
Notes:
Nothing to report
RHEL-07-040200 (V-72231)¶
The Red Hat Enterprise Linux operating system must implement cryptography to protect the integrity of Lightweight Directory Access Protocol (LDAP) communications.
Severity: Medium
Implementation Status: Not Implemented
Description:
Without cryptographic integrity protections, information can be altered by unauthorized users without detection.
Cryptographic mechanisms used for protecting the integrity of information include, for example, signed hash functions using asymmetric cryptography enabling distribution of the public key to verify the hash information while maintaining the confidentiality of the key used to generate the hash.
Variables:
rhel_07_040200
Tags:
RHEL-07-040200
notimplemented
Notes:
Nothing to report
RHEL-07-040201 (V-77825)¶
The Red Hat Enterprise Linux operating system must implement virtual address space randomization.
Severity: Medium
Implementation Status: Implemented
Description:
Address space layout randomization (ASLR) makes it more difficult for an attacker to predict the location of attack code he or she has introduced into a process’s address space during an attempt at exploitation. Additionally, ASLR also makes it more difficult for an attacker to know the location of existing code in order to repurpose it using return-oriented programming (ROP) techniques.
Variables:
rhel_07_040201
Tags:
RHEL-07-040201
sysctl
Notes:
Nothing to report
RHEL-07-040300 (V-72233)¶
The Red Hat Enterprise Linux operating system must be configured so that all networked systems have SSH installed.
Severity: Medium
Implementation Status: Implemented
Description:
Without protection of the transmitted information, confidentiality and integrity may be compromised because unprotected communications can be intercepted and either read or altered.
This requirement applies to both internal and external networks and all types of information system components from which information can be transmitted (e.g., servers, mobile devices, notebook computers, printers, copiers, scanners, and facsimile machines). Communication paths outside the physical protection of a controlled boundary are exposed to the possibility of interception and modification.
Protecting the confidentiality and integrity of organizational information can be accomplished by physical means (e.g., employing physical distribution systems) or by logical means (e.g., employing cryptographic techniques). If physical means of protection are employed, logical means (cryptography) do not have to be employed, and vice versa.
Satisfies: SRG-OS-000423-GPOS-00187, SRG-OS-000424-GPOS-00188, SRG-OS-000425-GPOS-00189, SRG-OS-000426-GPOS-00190
Variables:
rhel_07_040300
rhel7stig_ssh_required
Tags:
RHEL-07-040300
ssh
Notes:
Nothing to report
RHEL-07-040310 (V-72235)¶
The Red Hat Enterprise Linux operating system must be configured so that all networked systems use SSH for confidentiality and integrity of transmitted and received information as well as information during preparation for transmission.
Severity: Medium
Implementation Status: Implemented
Description:
Without protection of the transmitted information, confidentiality and integrity may be compromised because unprotected communications can be intercepted and either read or altered.
This requirement applies to both internal and external networks and all types of information system components from which information can be transmitted (e.g., servers, mobile devices, notebook computers, printers, copiers, scanners, and facsimile machines). Communication paths outside the physical protection of a controlled boundary are exposed to the possibility of interception and modification.
Protecting the confidentiality and integrity of organizational information can be accomplished by physical means (e.g., employing physical distribution systems) or by logical means (e.g., employing cryptographic techniques). If physical means of protection are employed, then logical means (cryptography) do not have to be employed, and vice versa.
Satisfies: SRG-OS-000423-GPOS-00187, SRG-OS-000423-GPOS-00188, SRG-OS-000423-GPOS-00189, SRG-OS-000423-GPOS-00190
Variables:
rhel_07_040310
rhel7stig_ssh_required
not (rhel7stig_system_is_chroot and rhel7stig_system_is_container)
Tags:
RHEL-07-040310
ssh
Notes:
Nothing to report
RHEL-07-040320 (V-72237)¶
The Red Hat Enterprise Linux operating system must be configured so that all network connections associated with SSH traffic are terminated at the end of the session or after 10 minutes of inactivity, except to fulfill documented and validated mission requirements.
Severity: Medium
Implementation Status: Implemented
Description:
Terminating an idle SSH session within a short time period reduces the window of opportunity for unauthorized personnel to take control of a management session enabled on the console or console port that has been left unattended. In addition, quickly terminating an idle SSH session will also free up resources committed by the managed network element.
Terminating network connections associated with communications sessions includes, for example, de-allocating associated TCP/IP address/port pairs at the operating system level and de-allocating networking assignments at the application level if multiple application sessions are using a single operating system-level network connection. This does not mean that the operating system terminates all sessions or network access; it only ends the inactive session and releases the resources associated with that session.
Satisfies: SRG-OS-000163-GPOS-00072, SRG-OS-000279-GPOS-00109
Variables:
rhel_07_040320
rhel7stig_ssh_required
Tags:
RHEL-07-040320
ssh
Notes:
Nothing to report
RHEL-07-040330 (V-72239)¶
The Red Hat Enterprise Linux operating system must be configured so that the SSH daemon does not allow authentication using RSA rhosts authentication.
Severity: Medium
Implementation Status: Implemented
Description:
Configuring this setting for the SSH daemon provides additional assurance that remote logon via SSH will require a password, even in the event of misconfiguration elsewhere.
Variables:
rhel_07_040330
rhel7stig_ssh_required
ansible_distribution_version is not version_compare('7.4', '>=')
Tags:
RHEL-07-040330
ssh
Notes:
Nothing to report
RHEL-07-040340 (V-72241)¶
The Red Hat Enterprise Linux operating system must be configured so that all network connections associated with SSH traffic terminate after a period of inactivity.
Severity: Medium
Implementation Status: Implemented
Description:
Terminating an idle SSH session within a short time period reduces the window of opportunity for unauthorized personnel to take control of a management session enabled on the console or console port that has been left unattended. In addition, quickly terminating an idle SSH session will also free up resources committed by the managed network element.
Terminating network connections associated with communications sessions includes, for example, de-allocating associated TCP/IP address/port pairs at the operating system level and de-allocating networking assignments at the application level if multiple application sessions are using a single operating system-level network connection. This does not mean that the operating system terminates all sessions or network access; it only ends the inactive session and releases the resources associated with that session.
Satisfies: SRG-OS-000163-GPOS-00072, SRG-OS-000279-GPOS-00109
Variables:
rhel_07_040340
rhel7stig_ssh_required
Tags:
RHEL-07-040340
ssh
Notes:
Nothing to report
RHEL-07-040350 (V-72243)¶
The Red Hat Enterprise Linux operating system must be configured so that the SSH daemon does not allow authentication using rhosts authentication.
Severity: Medium
Implementation Status: Implemented
Description:
Configuring this setting for the SSH daemon provides additional assurance that remote logon via SSH will require a password, even in the event of misconfiguration elsewhere.
Variables:
rhel_07_040350
rhel7stig_ssh_required
Tags:
RHEL-07-040350
ssh
Notes:
Nothing to report
RHEL-07-040360 (V-72245)¶
The Red Hat Enterprise Linux operating system must display the date and time of the last successful account logon upon an SSH logon.
Severity: Medium
Implementation Status: Implemented
Description:
Providing users with feedback on when account accesses via SSH last occurred facilitates user recognition and reporting of unauthorized account use.
Variables:
rhel_07_040360
rhel7stig_ssh_required
Tags:
RHEL-07-040360
ssh
Notes:
Nothing to report
RHEL-07-040370 (V-72247)¶
The Red Hat Enterprise Linux operating system must not permit direct logons to the root account using remote access via SSH.
Severity: Medium
Implementation Status: Implemented
Description:
Even though the communications channel may be encrypted, an additional layer of security is gained by extending the policy of not logging on directly as root. In addition, logging on with a user-specific account provides individual accountability of actions performed on the system.
Variables:
rhel_07_040370
rhel7stig_ssh_required
Tags:
RHEL-07-040370
ssh
Notes:
Nothing to report
RHEL-07-040380 (V-72249)¶
The Red Hat Enterprise Linux operating system must be configured so that the SSH daemon does not allow authentication using known hosts authentication.
Severity: Medium
Implementation Status: Implemented
Description:
Configuring this setting for the SSH daemon provides additional assurance that remote logon via SSH will require a password, even in the event of misconfiguration elsewhere.
Variables:
rhel_07_040380
rhel7stig_ssh_required
Tags:
RHEL-07-040380
ssh
Notes:
Nothing to report
RHEL-07-040390 (V-72251)¶
The Red Hat Enterprise Linux operating system must be configured so that the SSH daemon is configured to only use the SSHv2 protocol.
Severity: High
Implementation Status: Implemented
Description:
SSHv1 is an insecure implementation of the SSH protocol and has many well-known vulnerability exploits. Exploits of the SSH daemon could provide immediate root access to the system.
Satisfies: SRG-OS-000074-GPOS-00042, SRG-OS-000480-GPOS-00227
Variables:
rhel_07_040390
rhel7stig_ssh_required
ansible_distribution_version is not version_compare('7.4', '>=')
Tags:
RHEL-07-040390
ssh
Notes:
Nothing to report
RHEL-07-040400 (V-72253)¶
The Red Hat Enterprise Linux operating system must be configured so that the SSH daemon is configured to only use Message Authentication Codes (MACs) employing FIPS 140-2 approved cryptographic hash algorithms.
Severity: Medium
Implementation Status: Implemented
Description:
DoD information systems are required to use FIPS 140-2 approved cryptographic hash functions. The only SSHv2 hash algorithm meeting this requirement is SHA.
Variables:
rhel_07_040400
rhel7stig_ssh_required
Tags:
ssh
RHEL-07-040400
Notes:
Nothing to report
RHEL-07-040410 (V-72255)¶
The Red Hat Enterprise Linux operating system must be configured so that the SSH public host key files have mode 0644 or less permissive.
Severity: Medium
Implementation Status: Implemented
Description:
If a public host key file is modified by an unauthorized user, the SSH service may be compromised.
Variables:
rhel_07_040410
rhel7stig_ssh_required
Tags:
RHEL-07-040410
ssh
Notes:
Nothing to report
RHEL-07-040420 (V-72257)¶
The Red Hat Enterprise Linux operating system must be configured so that the SSH private host key files have mode 0640 or less permissive.
Severity: Medium
Implementation Status: Implemented
Description:
If an unauthorized user obtains the private SSH host key file, the host could be impersonated.
Variables:
rhel_07_040420
rhel7stig_ssh_required
Tags:
RHEL-07-040420
ssh
Notes:
Nothing to report
RHEL-07-040430 (V-72259)¶
The Red Hat Enterprise Linux operating system must be configured so that the SSH daemon does not permit Generic Security Service Application Program Interface (GSSAPI) authentication unless needed.
Severity: Medium
Implementation Status: Implemented
Description:
GSSAPI authentication is used to provide additional authentication mechanisms to applications. Allowing GSSAPI authentication through SSH exposes the system’s GSSAPI to remote hosts, increasing the attack surface of the system. GSSAPI authentication must be disabled unless needed.
Variables:
rhel_07_040430
rhel7stig_ssh_required
Tags:
RHEL-07-040430
ssh
Notes:
Nothing to report
RHEL-07-040440 (V-72261)¶
The Red Hat Enterprise Linux operating system must be configured so that the SSH daemon does not permit Kerberos authentication unless needed.
Severity: Medium
Implementation Status: Implemented
Description:
Kerberos authentication for SSH is often implemented using Generic Security Service Application Program Interface (GSSAPI). If Kerberos is enabled through SSH, the SSH daemon provides a means of access to the system’s Kerberos implementation. Vulnerabilities in the system’s Kerberos implementation may then be subject to exploitation. To reduce the attack surface of the system, the Kerberos authentication mechanism within SSH must be disabled for systems not using this capability.
Variables:
rhel_07_040440
rhel7stig_ssh_required
Tags:
RHEL-07-040440
ssh
Notes:
Nothing to report
RHEL-07-040450 (V-72263)¶
The Red Hat Enterprise Linux operating system must be configured so that the SSH daemon performs strict mode checking of home directory configuration files.
Severity: Medium
Implementation Status: Implemented
Description:
If other users have access to modify user-specific SSH configuration files, they may be able to log on to the system as another user.
Variables:
rhel_07_040450
rhel7stig_ssh_required
Tags:
RHEL-07-040450
ssh
Notes:
Nothing to report
RHEL-07-040460 (V-72265)¶
The Red Hat Enterprise Linux operating system must be configured so that the SSH daemon uses privilege separation.
Severity: Medium
Implementation Status: Implemented
Description:
SSH daemon privilege separation causes the SSH process to drop root privileges when not needed, which would decrease the impact of software vulnerabilities in the unprivileged section.
Variables:
rhel_07_040460
rhel7stig_ssh_required
Tags:
RHEL-07-040460
ssh
Notes:
Nothing to report
RHEL-07-040470 (V-72267)¶
The Red Hat Enterprise Linux operating system must be configured so that the SSH daemon does not allow compression or only allows compression after successful authentication.
Severity: Medium
Implementation Status: Implemented
Description:
If compression is allowed in an SSH connection prior to authentication, vulnerabilities in the compression software could result in compromise of the system from an unauthenticated connection, potentially with root privileges.
Variables:
rhel_07_040470
rhel7stig_ssh_required
Tags:
RHEL-07-040470
ssh
Notes:
Nothing to report
RHEL-07-040500 (V-72269)¶
The Red Hat Enterprise Linux operating system must, for networked systems, synchronize clocks with a server that is synchronized to one of the redundant United States Naval Observatory (USNO) time servers, a time server designated for the appropriate DoD network (NIPRNet/SIPRNet), and/or the Global Positioning System (GPS).
Severity: Medium
Implementation Status: Implemented
Description:
Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the correct time a particular event occurred on a system is critical when conducting forensic analysis and investigating system events. Sources outside the configured acceptable allowance (drift) may be inaccurate.
Organizations should consider endpoints that may not have regular access to the authoritative time server (e.g., mobile, teleworking, and tactical endpoints).
Satisfies: SRG-OS-000355-GPOS-00143, SRG-OS-000356-GPOS-00144
Variables:
rhel7stig_time_service == 'ntpd'
rhel_07_040500
rhel7stig_time_service == 'chronyd'
rhel_07_040500
rhel7stig_time_service == 'chronyd'
rhel_07_040500
Tags:
RHEL-07-040500
chronyd
Notes:
Nothing to report
RHEL-07-040510 (V-72271)¶
The Red Hat Enterprise Linux operating system must protect against or limit the effects of Denial of Service (DoS) attacks by validating the operating system is implementing rate-limiting measures on impacted network interfaces.
Severity: Medium
Implementation Status: Not Implemented
Description:
DoS is a condition when a resource is not available for legitimate users. When this occurs, the organization either cannot accomplish its mission or must operate at degraded capacity.
This requirement addresses the configuration of the operating system to mitigate the impact of DoS attacks that have occurred or are ongoing on system availability. For each system, known and potential DoS attacks must be identified and solutions for each type implemented. A variety of technologies exist to limit or, in some cases, eliminate the effects of DoS attacks (e.g., limiting processes or establishing memory partitions). Employing increased capacity and bandwidth, combined with service redundancy, may reduce the susceptibility to some DoS attacks.
Variables:
Tags:
Notes:
Nothing to report
RHEL-07-040520 (V-72273)¶
The Red Hat Enterprise Linux operating system must enable an application firewall, if available.
Severity: Medium
Implementation Status: Implemented
Description:
Firewalls protect computers from network attacks by blocking or limiting access to open network ports. Application firewalls limit which applications are allowed to communicate over the network.
Satisfies: SRG-OS-000480-GPOS-00227, SRG-OS-000480-GPOS-00231, SRG-OS-000480-GPOS-00232
Variables:
rhel_07_040520
rhel_07_040520
not (rhel7stig_system_is_chroot and rhel7stig_system_is_container)
Tags:
RHEL-07-040520
firewall
Notes:
Nothing to report
RHEL-07-040530 (V-72275)¶
The Red Hat Enterprise Linux operating system must display the date and time of the last successful account logon upon logon.
Severity: Low
Implementation Status: Implemented
Description:
Providing users with feedback on when account accesses last occurred facilitates user recognition and reporting of unauthorized account use.
Variables:
rhel_07_040530
Tags:
RHEL-07-040530
pamd
Notes:
Nothing to report
RHEL-07-040540 (V-72277)¶
The Red Hat Enterprise Linux operating system must not contain .shosts files.
Severity: High
Implementation Status: Implemented
Description:
The .shosts files are used to configure host-based authentication for individual users or the system via SSH. Host-based authentication is not sufficient for preventing unauthorized access to the system, as it does not require interactive identification and authentication of a connection request, or for the use of two-factor authentication.
Variables:
rhel_07_040540
Tags:
RHEL-07-040540
shosts
Notes:
Nothing to report
RHEL-07-040550 (V-72279)¶
The Red Hat Enterprise Linux operating system must not contain shosts.equiv files.
Severity: High
Implementation Status: Implemented
Description:
The shosts.equiv files are used to configure host-based authentication for the system via SSH. Host-based authentication is not sufficient for preventing unauthorized access to the system, as it does not require interactive identification and authentication of a connection request, or for the use of two-factor authentication.
Variables:
rhel_07_040550
Tags:
RHEL-07-040550
shosts
Notes:
Nothing to report
RHEL-07-040600 (V-72281)¶
For Red Hat Enterprise Linux operating systems using DNS resolution, at least two name servers must be configured.
Severity: Low
Implementation Status: Not Implemented
Description:
To provide availability for name resolution services, multiple redundant name servers are mandated. A failure in name resolution could lead to the failure of security functions requiring name resolution, which may include time synchronization, centralized authentication, and remote system logging.
Variables:
rhel_07_040600
Tags:
RHEL-07-040600
notimplemented
Notes:
Nothing to report
RHEL-07-040610 (V-72283)¶
The Red Hat Enterprise Linux operating system must not forward Internet Protocol version 4 (IPv4) source-routed packets.
Severity: Medium
Implementation Status: Implemented
Description:
Source-routed packets allow the source of the packet to suggest that routers forward the packet along a different path than configured on the router, which can be used to bypass network security measures. This requirement applies only to the forwarding of source-routed traffic, such as when IPv4 forwarding is enabled and the system is functioning as a router.
Variables:
rhel_07_040610
Tags:
RHEL-07-040610
ipv4
Notes:
Nothing to report
RHEL-07-040620 (V-72285)¶
The Red Hat Enterprise Linux operating system must not forward Internet Protocol version 4 (IPv4) source-routed packets by default.
Severity: Medium
Implementation Status: Implemented
Description:
Source-routed packets allow the source of the packet to suggest that routers forward the packet along a different path than configured on the router, which can be used to bypass network security measures. This requirement applies only to the forwarding of source-routed traffic, such as when IPv4 forwarding is enabled and the system is functioning as a router.
Variables:
rhel_07_040620
Tags:
RHEL-07-040620
ipv4
Notes:
Nothing to report
RHEL-07-040630 (V-72287)¶
The Red Hat Enterprise Linux operating system must not respond to Internet Protocol version 4 (IPv4) Internet Control Message Protocol (ICMP) echoes sent to a broadcast address.
Severity: Medium
Implementation Status: Implemented
Description:
Responding to broadcast (ICMP) echoes facilitates network mapping and provides a vector for amplification attacks.
Variables:
rhel_07_040630
Tags:
RHEL-07-040630
ipv4
Notes:
Nothing to report
RHEL-07-040640 (V-72289)¶
The Red Hat Enterprise Linux operating system must prevent Internet Protocol version 4 (IPv4) Internet Control Message Protocol (ICMP) redirect messages from being accepted.
Severity: Medium
Implementation Status: Implemented
Description:
ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. These messages modify the host’s route table and are unauthenticated. An illicit ICMP redirect message could result in a man-in-the-middle attack.
Variables:
rhel_07_040640
Tags:
RHEL-07-040640
ipv4
Notes:
Nothing to report
RHEL-07-040641 (V-73175)¶
The Red Hat Enterprise Linux operating system must ignore Internet Protocol version 4 (IPv4) Internet Control Message Protocol (ICMP) redirect messages.
Severity: Medium
Implementation Status: Implemented
Description:
ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. These messages modify the host’s route table and are unauthenticated. An illicit ICMP redirect message could result in a man-in-the-middle attack.
Variables:
rhel_07_040641
Tags:
RHEL-07-040641
ipv4
Notes:
Nothing to report
RHEL-07-040650 (V-72291)¶
The Red Hat Enterprise Linux operating system must not allow interfaces to perform Internet Protocol version 4 (IPv4) Internet Control Message Protocol (ICMP) redirects by default.
Severity: Medium
Implementation Status: Implemented
Description:
ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. These messages contain information from the system’s route table, possibly revealing portions of the network topology.
Variables:
rhel_07_040650
Tags:
RHEL-07-040650
ipv4
Notes:
Nothing to report
RHEL-07-040660 (V-72293)¶
The Red Hat Enterprise Linux operating system must not send Internet Protocol version 4 (IPv4) Internet Control Message Protocol (ICMP) redirects.
Severity: Medium
Implementation Status: Implemented
Description:
ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. These messages contain information from the system’s route table, possibly revealing portions of the network topology.
Variables:
rhel_07_040660
Tags:
RHEL-07-040660
ipv4
Notes:
Nothing to report
RHEL-07-040670 (V-72295)¶
Network interfaces configured on the Red Hat Enterprise Linux operating system must not be in promiscuous mode.
Severity: Medium
Implementation Status: Implemented
Description:
Network interfaces in promiscuous mode allow for the capture of all network traffic visible to the system. If unauthorized individuals can access these applications, it may allow then to collect information such as logon IDs, passwords, and key exchanges between systems.
If the system is being used to perform a network troubleshooting function, the use of these tools must be documented with the Information System Security Officer (ISSO) and restricted to only authorized personnel.
Variables:
rhel_07_040670
not rhel7stig_net_promisc_mode_required
Tags:
RHEL-07-040670
Notes:
Nothing to report
RHEL-07-040680 (V-72297)¶
The Red Hat Enterprise Linux operating system must be configured to prevent unrestricted mail relaying.
Severity: Medium
Implementation Status: Implemented
Description:
If unrestricted mail relaying is permitted, unauthorized senders could use this host as a mail relay for the purpose of sending spam or other unauthorized activity.
Variables:
rhel_07_040680
Tags:
RHEL-07-040680
Notes:
Nothing to report
RHEL-07-040690 (V-72299)¶
The Red Hat Enterprise Linux operating system must not have a File Transfer Protocol (FTP) server package installed unless needed.
Severity: High
Implementation Status: Disruption High
Description:
The FTP service provides an unencrypted remote access that does not provide for the confidentiality and integrity of user passwords or the remote session. If a privileged user were to log on using this service, the privileged user password could be compromised. SSH or other encrypted file transfer methods must be used in place of this service.
Variables:
not rhel7stig_vsftpd_required
rhel_07_040690
rhel7stig_disruptive
Tags:
RHEL-07-040690
disruption-high
ftp
Notes:
Nothing to report
RHEL-07-040700 (V-72301)¶
The Red Hat Enterprise Linux operating system must not have the Trivial File Transfer Protocol (TFTP) server package installed if not required for operational support.
Severity: High
Implementation Status: Disruption High
Description:
If TFTP is required for operational support (such as the transmission of router configurations) its use must be documented with the Information System Security Officer (ISSO), restricted to only authorized personnel, and have access control rules established.
Variables:
not rhel7stig_tftp_required
rhel_07_040700
rhel7stig_disruptive
Tags:
RHEL-07-040700
disruption-high
tftp
Notes:
Nothing to report
RHEL-07-040710 (V-72303)¶
The Red Hat Enterprise Linux operating system must be configured so that remote X connections for interactive users are encrypted.
Severity: High
Implementation Status: Implemented
Description:
Open X displays allow an attacker to capture keystrokes and execute commands remotely.
Variables:
rhel_07_040710
rhel7stig_ssh_required
Tags:
RHEL-07-040710
ssh
Notes:
Nothing to report
RHEL-07-040720 (V-72305)¶
The Red Hat Enterprise Linux operating system must be configured so that if the Trivial File Transfer Protocol (TFTP) server is required, the TFTP daemon is configured to operate in secure mode.
Severity: Medium
Implementation Status: Implemented
Description:
Restricting TFTP to a specific directory prevents remote users from copying, transferring, or overwriting system files.
Variables:
rhel7stig_tftp_required
rhel_07_040720
Tags:
RHEL-07-040720
Notes:
Nothing to report
RHEL-07-040730 (V-72307)¶
The Red Hat Enterprise Linux operating system must not have an X Windows display manager installed unless approved.
Severity: Medium
Implementation Status: Disruption High
Description:
Internet services that are not required for system or application processes must not be active to decrease the attack surface of the system. X Windows has a long history of security vulnerabilities and will not be used unless approved and documented.
Variables:
not rhel7stig_gui
rhel_07_040730
rhel7stig_disruptive
Tags:
RHEL-07-040730
disruption-high
x11
gui
Notes:
Nothing to report
RHEL-07-040740 (V-72309)¶
The Red Hat Enterprise Linux operating system must not be performing packet forwarding unless the system is a router.
Severity: Medium
Implementation Status: Implemented
Description:
Routing protocol daemons are typically used on routers to exchange network topology information with other routers. If this software is used when not required, system network information may be unnecessarily transmitted across the network.
Variables:
not rhel7stig_system_is_router
rhel_07_040740
Tags:
RHEL-07-040740
ipv4
Notes:
Nothing to report
RHEL-07-040750 (V-72311)¶
The Red Hat Enterprise Linux operating system must be configured so that the Network File System (NFS) is configured to use RPCSEC_GSS.
Severity: Medium
Implementation Status: Not Implemented
Description:
When an NFS server is configured to use RPCSEC_SYS, a selected userid and groupid are used to handle requests from the remote user. The userid and groupid could mistakenly or maliciously be set incorrectly. The RPCSEC_GSS method of authentication uses certificates on the server and client systems to more securely authenticate the remote mount request.
Variables:
rhel_07_040750
Tags:
RHEL-07-040750
notimplemented
Notes:
Nothing to report
RHEL-07-040800 (V-72313)¶
SNMP community strings on the Red Hat Enterprise Linux operating system must be changed from the default.
Severity: High
Implementation Status: Implemented
Description:
Whether active or not, default Simple Network Management Protocol (SNMP) community strings must be changed to maintain security. If the service is running with the default authenticators, anyone can gather data about the system and the network and use the information to potentially compromise the integrity of the system or network(s). It is highly recommended that SNMP version 3 user authentication and message encryption be used in place of the version 2 community strings.
Variables:
rhel_07_040800
Tags:
RHEL-07-040800
snmp
Notes:
Nothing to report
RHEL-07-040810 (V-72315)¶
The Red Hat Enterprise Linux operating system access control program must be configured to grant or deny system access to specific hosts and services.
Severity: Medium
Implementation Status: Not Implemented
Description:
If the systems access control program is not configured with appropriate rules for allowing and denying access to system network resources, services may be accessible to unauthorized hosts.
Variables:
rhel_07_040810
Tags:
RHEL-07-040810
notimplemented
Notes:
Nothing to report
RHEL-07-040820 (V-72317)¶
The Red Hat Enterprise Linux operating system must not have unauthorized IP tunnels configured.
Severity: Medium
Implementation Status: Disruption High
Description:
IP tunneling mechanisms can be used to bypass network filtering. If tunneling is required, it must be documented with the Information System Security Officer (ISSO).
Variables:
rhel_07_040820
rhel7stig_disruptive
Tags:
RHEL-07-040820
disruption-high
Notes:
Nothing to report
RHEL-07-040830 (V-72319)¶
The Red Hat Enterprise Linux operating system must not forward IPv6 source-routed packets.
Severity: Medium
Implementation Status: Implemented
Description:
Source-routed packets allow the source of the packet to suggest that routers forward the packet along a different path than configured on the router, which can be used to bypass network security measures. This requirement applies only to the forwarding of source-routed traffic, such as when IPv6 forwarding is enabled and the system is functioning as a router.
Variables:
rhel_07_040830
Tags:
RHEL-07-040830
ipv6
Notes:
Nothing to report
RHEL-07-041001 (V-72417)¶
The Red Hat Enterprise Linux operating system must have the required packages for multifactor authentication installed.
Severity: Medium
Implementation Status: Implemented
Description:
Using an authentication device, such as a CAC or token that is separate from the information system, ensures that even if the information system is compromised, that compromise will not affect credentials stored on the authentication device.
Multifactor solutions that require devices separate from information systems gaining access include, for example, hardware tokens providing time-based or challenge-response authenticators and smart cards such as the U.S. Government Personal Identity Verification card and the DoD Common Access Card.
A privileged account is defined as an information system account with authorizations of a privileged user.
Remote access is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless.
This requirement only applies to components where this is specific to the function of the device or has the concept of an organizational user (e.g., VPN, proxy capability). This does not apply to authentication for the purpose of configuring the device itself (management).
Requires further clarification from NIST.
Satisfies: SRG-OS-000375-GPOS-00160, SRG-OS-000375-GPOS-00161, SRG-OS-000375-GPOS-00162
Variables:
rhel_07_041001
Tags:
RHEL-07-041001
multifactor
Notes:
Nothing to report
RHEL-07-041002 (V-72427)¶
The Red Hat Enterprise Linux operating system must implement multifactor authentication for access to privileged accounts via pluggable authentication modules (PAM).
Severity: Medium
Implementation Status: Complexity High
Description:
Using an authentication device, such as a CAC or token that is separate from the information system, ensures that even if the information system is compromised, that compromise will not affect credentials stored on the authentication device.
Multifactor solutions that require devices separate from information systems gaining access include, for example, hardware tokens providing time-based or challenge-response authenticators and smart cards such as the U.S. Government Personal Identity Verification card and the DoD Common Access Card.
A privileged account is defined as an information system account with authorizations of a privileged user.
Remote access is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless.
This requirement only applies to components where this is specific to the function of the device or has the concept of an organizational user (e.g., VPN, proxy capability). This does not apply to authentication for the purpose of configuring the device itself (management).
Satisfies: SRG-OS-000375-GPOS-00160, SRG-OS-000375-GPOS-00161, SRG-OS-000375-GPOS-00162
Variables:
rhel7stig_auth_settings.use_sssd
rhel7stig_complex
rhel_07_041002
Tags:
RHEL-07-041002
complexity-high
sssd
Notes:
Nothing to report
RHEL-07-041003 (V-72433)¶
The Red Hat Enterprise Linux operating system must implement certificate status checking for PKI authentication.
Severity: Medium
Implementation Status: Implemented
Description:
Using an authentication device, such as a CAC or token that is separate from the information system, ensures that even if the information system is compromised, that compromise will not affect credentials stored on the authentication device.
Multifactor solutions that require devices separate from information systems gaining access include, for example, hardware tokens providing time-based or challenge-response authenticators and smart cards such as the U.S. Government Personal Identity Verification card and the DoD Common Access Card.
A privileged account is defined as an information system account with authorizations of a privileged user.
Remote access is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless.
This requirement only applies to components where this is specific to the function of the device or has the concept of an organizational user (e.g., VPN, proxy capability). This does not apply to authentication for the purpose of configuring the device itself (management).
Satisfies: SRG-OS-000375-GPOS-00160, SRG-OS-000375-GPOS-00161, SRG-OS-000375-GPOS-00162
Variables:
rhel_07_041003
ansible_distribution_major_version is version_compare('8', '<')
Tags:
RHEL-07-041003
Notes:
Nothing to report
RHEL-07-041010 (V-73177)¶
The Red Hat Enterprise Linux operating system must be configured so that all wireless network adapters are disabled.
Severity: Medium
Implementation Status: Implemented
Description:
The use of wireless networking can introduce many different attack vectors into the organization’s network. Common attack vectors such as malicious association and ad hoc networks will allow an attacker to spoof a wireless access point (AP), allowing validated systems to connect to the malicious AP and enabling the attacker to monitor and record network traffic. These malicious APs can also serve to create a man-in-the-middle attack or be used to create a denial of service to valid network resources.
Variables:
rhel_07_041010
Tags:
RHEL-07-041010
Notes:
Nothing to report