OL 9 must maintain an account lock until the locked account is released by an administrator.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-271755 | OL09-00-002417 | SV-271755r1091977_rule | Medium |
| Description |
| By limiting the number of failed logon attempts the risk of unauthorized system access via user password guessing, otherwise known as brute-forcing, is reduced. Limits are imposed by locking the account. Satisfies: SRG-OS-000329-GPOS-00128, SRG-OS-000021-GPOS-00005 |
| STIG | Date |
| Oracle Linux 9 Security Technical Implementation Guide | 2025-05-08 |
Details
| Check Text (C-75805r1091975_chk) |
| Verify that OL 9 is configured to lock an account until released by an administrator after three unsuccessful logon attempts with the command: $ grep 'unlock_time =' /etc/security/faillock.conf unlock_time = 0 If the "unlock_time" option is not set to "0", the line is missing, or commented out, this is a finding. |
| Fix Text (F-75712r1091976_fix) |
| Configure OL 9 to lock an account until released by an administrator after three unsuccessful logon attempts with the command: $ sudo authselect enable-feature with-faillock Then edit the "/etc/security/faillock.conf" file as follows: unlock_time = 0 |