STIGQter: STIG Summary: Tri-Lab Operating System Stack (TOSS) 5 Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 26 Mar 2026:

TOSS 5 must log username information when unsuccessful login attempts occur.

DISA Rule

SV-282363r1200069_rule

Vulnerability Number

V-282363

Group Title

SRG-OS-000021-GPOS-00005

Rule Version

TOSS-05-000314

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.

Weight

10

Fix Recommendation

Configure TOSS 5 to log username information when unsuccessful login attempts occur.

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

audit

Check Contents

Verify the "/etc/security/faillock.conf" file is configured to log username information when unsuccessful login attempts occur using the following command:

$ grep audit /etc/security/faillock.conf

audit

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

Vulnerability Number

V-282363

Documentable

False

Rule Version

TOSS-05-000314

Severity Override Guidance

Verify the "/etc/security/faillock.conf" file is configured to log username information when unsuccessful login attempts occur using the following command:

$ grep audit /etc/security/faillock.conf

audit

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

Check Content Reference

M

Target Key

5738