STIGQter: STIG Summary: Cloud Linux AlmaLinux OS 9 Security Technical Implementation Guide Version: 1 Release: 7 Benchmark Date: 01 Jul 2026:

AlmaLinux OS 9 must automatically lock an account when three unsuccessful logon attempts occur.

DISA Rule

SV-269147r1050029_rule

Vulnerability Number

V-269147

Group Title

SRG-OS-000021-GPOS-00005

Rule Version

ALMA-09-007500

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 AlmaLinux OS 9 to lock an account when three unsuccessful logon attempts occur using pam_faillock.

First, enable the feature using the following command:

$ authselect enable-feature with-faillock

Then, add or update the following line in the "/etc/security/faillock.conf" file:

deny = 3

Check Contents

Verify AlmaLinux OS 9 is configured to lock an account after three unsuccessful logon attempts with the command:

$ grep deny /etc/security/faillock.conf

deny = 3

If the "deny" option is not set to 3 or less (but not 0), is missing or commented out, this is a finding.

Vulnerability Number

V-269147

Documentable

False

Rule Version

ALMA-09-007500

Severity Override Guidance

Verify AlmaLinux OS 9 is configured to lock an account after three unsuccessful logon attempts with the command:

$ grep deny /etc/security/faillock.conf

deny = 3

If the "deny" option is not set to 3 or less (but not 0), is missing or commented out, this is a finding.

Check Content Reference

M

Target Key

5664