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RHEL 9 must configure the use of the pam_faillock.so module in the /etc/pam.d/password-auth file.


Overview

Finding ID Version Rule ID IA Controls Severity
V-258096 RHEL-09-611035 SV-258096r926275_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 2023-12-01

Details

Check Text ( C-61837r926273_chk )
Verify the pam_faillock.so module is present in the "/etc/pam.d/password-auth" file:

$ grep pam_faillock.so /etc/pam.d/password-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/password-auth" file with the "preauth" line listed before pam_unix.so, this is a finding.
Fix Text (F-61761r926274_fix)
Configure RHEL 9 to include the use of the pam_faillock.so module in the /etc/pam.d/password-auth file.

Add/modify the appropriate sections of the "/etc/pam.d/password-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