TOSS 5 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-282364 | TOSS-05-000332 | SV-282364r1200072_rule | CCI-000044 | 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 | |||
| Tri-Lab Operating System Stack (TOSS) 5 Security Technical Implementation Guide | 2026-04-01 | |||
Details
Check Text (C-282364r1200072_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.
Fix Text (F-86830r1200071_fix)
Configure TOSS 5 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