AlmaLinux OS 9 must automatically lock an account when three unsuccessful logon attempts occur.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-269147 | ALMA-09-007500 | SV-269147r1050029_rule | CCI-000044 | medium |
| Description | ||||
| By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-force attacks, is reduced. Limits are imposed by locking the account. | ||||
| STIG | Date | |||
| Cloud Linux AlmaLinux OS 9 Security Technical Implementation Guide | 2026-02-27 | |||
Related Frameworks
3 paths across 3 frameworks
Related Frameworks
NIST 800-531 mapping
AC-7
1.00
- DISA · V1R6 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1711 mapping
3.1.8
1.00
- DISA · V1R6 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
CCI1 mapping
CCI-000044
1.00
- DISA · V1R6 · disa_xccdf · related
Details
Check Text (C-269147r1050029_chk)
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.
Fix Text (F-73079r1049201_fix)
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