STIGQter: STIG Summary: Oracle Linux 9 Security Technical Implementation Guide Version: 1 Release: 6 Benchmark Date: 01 Jul 2026:

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

DISA Rule

SV-271837r1092223_rule

Vulnerability Number

V-271837

Group Title

SRG-OS-000021-GPOS-00005

Rule Version

OL09-00-003011

Severity

CAT II

CCI(s)

• CCI-000044 - Enforce the organization-defined limit of consecutive invalid logon attempts by a user during the organization-defined time period.

Weight

10

Fix Recommendation

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

Check Contents

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.

Vulnerability Number

V-271837

Documentable

False

Rule Version

OL09-00-003011

Severity Override Guidance

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.

Check Content Reference

M

Target Key

5680