STIGQter: STIG Summary: Oracle Linux 8 Security Technical Implementation Guide Version: 2 Release: 9 Benchmark Date: 01 Jul 2026:

OL 8 systems, versions 8.2 and above, must automatically lock an account until the locked account is released by an administrator when three unsuccessful logon attempts occur during a 15-minute time period.

DISA Rule

SV-248657r958388_rule

Vulnerability Number

V-248657

Group Title

SRG-OS-000021-GPOS-00005

Rule Version

OL08-00-020015

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.
CCI-002238 - Automatically lock the account or node for either an organization-defined time period, until the locked account or node is released by an administrator, or delays the next logon prompt according to the organization-defined delay algorithm when the maximum number of unsuccessful logon attempts is exceeded.

Weight

Fix Recommendation

Configure OL 8 to lock an account until released by an administrator when three unsuccessful logon attempts occur in 15 minutes.

Add/modify the "/etc/security/faillock.conf" file to match the following line:

unlock_time = 0

Check Contents

Note: This check applies to OL versions 8.2 or newer. If the system is OL version 8.0 or 8.1, this check is not applicable.

Verify the "/etc/security/faillock.conf" file is configured to lock an account until released by an administrator after three unsuccessful logon attempts:

$ sudo grep 'unlock_time =' /etc/security/faillock.conf

unlock_time = 0

If the "unlock_time" option is not set to "0" or is missing or commented out, this is a finding.

Vulnerability Number

V-248657

Documentable

False

Rule Version

OL08-00-020015

Severity Override Guidance

Check Content Reference

Target Key

5416