RHEL 9 must configure the use of the pam_faillock.so module in the /etc/pam.d/system-auth file.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-258095 | RHEL-09-611030 | SV-258095r1045189_rule | Medium |
| Description |
| If the pam_faillock.so module is not loaded, the system will not correctly lockout accounts to prevent password guessing attacks. |
| STIG | Date |
| Red Hat Enterprise Linux 9 Security Technical Implementation Guide | 2024-12-04 |
Details
| Check Text (C-61836r1014879_chk) |
| Verify the pam_faillock.so module is present in the "/etc/pam.d/system-auth" file: $ grep pam_faillock.so /etc/pam.d/system-auth auth required pam_faillock.so preauth auth required pam_faillock.so authfail account required pam_faillock.so If the pam_faillock.so module is not present in the "/etc/pam.d/system-auth" file with the "preauth" line listed before pam_unix.so, this is a finding. If the system administrator (SA) can demonstrate that the required configuration is contained in a PAM configuration file included or substacked from the system-auth file, this is not a finding. |
| Fix Text (F-61760r1045188_fix) |
| Configure RHEL 9 to include the use of the pam_faillock.so module in the /etc/pam.d/system-auth file. If PAM is managed with authselect, enable the feature with the following command: $ sudo authselect enable-feature with-faillock Otherwise, add/modify the appropriate sections of the "/etc/pam.d/system-auth" file to match the following lines: Note: The "preauth" line must be listed before pam_unix.so. auth required pam_faillock.so preauth auth required pam_faillock.so authfail account required pam_faillock.so |