RHEL 10 must maintain an account lock until the locked account is released by an administrator.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-281197 | SRG-OS-000329-GPOS-00128 | RHEL-10-600425 | SV-281197r1166543_rule | 2026-03-11 | 1 |
Description
By limiting the number of failed login 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
ℹ️ Check
Verify RHEL 10 is configured to lock an account after three unsuccessful login attempts until released by an administrator with the following command:
$ sudo grep 'unlock_time =' /etc/security/faillock.conf
unlock_time = 0
If the "unlock_time" option is not set to "0", or the line is missing or commented out, this is a finding.
✔️ Fix
Configure RHEL 10 to lock an account after three unsuccessful login attempts until released by an administrator with the following command:
$ authselect enable-feature with-faillock
Edit the "/etc/security/faillock.conf" file as follows:
unlock_time = 0