STIGQter: STIG Summary: Amazon Linux 2023 Security Technical Implementation Guide Version: 1 Release: 4 Benchmark Date: 01 Jul 2026:

Amazon Linux 2023 must maintain an account lock until the locked account is released by an administrator.

DISA Rule

SV-274157r1120459_rule

Vulnerability Number

V-274157

Group Title

SRG-OS-000329-GPOS-00128

Rule Version

AZLX-23-002470

Severity

CAT II

CCI(s)

• 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

10

Fix Recommendation

Configure Amazon Linux 2023 to lock an account until released by an administrator after three unsuccessful logon attempts with the command:

$ authselect enable-feature with-faillock

Then edit the "/etc/security/faillock.conf" file as follows:

unlock_time = 0

Check Contents

Verify Amazon Linux 2023 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.

Vulnerability Number

V-274157

Documentable

False

Rule Version

AZLX-23-002470

Severity Override Guidance

Verify Amazon Linux 2023 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.

Check Content Reference

M

Target Key

5700