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 not have unauthorized accounts.

DISA Rule

SV-282728r1201164_rule

Vulnerability Number

V-282728

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

TOSS-05-000306

Severity

CAT II

CCI(s)

CCI-000366 - Implement the security configuration settings.

Weight

Fix Recommendation

Remove unauthorized local interactive user accounts with the following command where <unauthorized_user> is the unauthorized account:

$ sudo userdel <unauthorized_user>

Check Contents

Verify there are no unauthorized interactive user accounts using the following command:

$ less /etc/passwd

root:x:0:0:root:/root:/bin/bash
...
games:x:12:100:games:/usr/games:/sbin/nologin
scsaustin:x:1001:1001:scsaustin:/home/scsaustin:/bin/bash
djohnson:x:1002:1002:djohnson:/home/djohnson:/bin/bash

Interactive user account, generally will have a user identifier (UID) of 1000 or greater, a home directory in a specific partition, and an interactive shell.

Obtain the list of interactive user accounts authorized to be on the system from the system administrator (SA) or information system security officer (ISSO) and compare it to the list of local interactive user accounts on the system.

If there are unauthorized local user accounts on the system, this is a finding.

Vulnerability Number

V-282728

Documentable

False

Rule Version

TOSS-05-000306

Severity Override Guidance

Check Content Reference

Target Key

5738