OL 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-271837 | OL09-00-003011 | SV-271837r1092223_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 |
| Oracle Linux 9 Security Technical Implementation Guide | 2025-05-08 |
Details
| Check Text (C-75887r1092221_chk) |
| Verify that OL 9 configures the pam_faillock.so module to exist in the "/etc/pam.d/system-auth" file with the following command: $ 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. |
| Fix Text (F-75794r1092222_fix) |
| Configure OL 9 to include the use of the pam_faillock.so module in the /etc/pam.d/system-auth file. 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 |