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

All TOSS 5 local interactive user home directories must be group-owned by the home directory owner's primary group.

DISA Rule

SV-282727r1201161_rule

Vulnerability Number

V-282727

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

TOSS-05-000303

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Change the group owner of a local interactive user's home directory to the group found in "/etc/passwd". To change the group owner of a local interactive user's home directory, use the following command:

Note: The example will be for the user "wadea", who has a home directory of "/home/wadea", and has a primary group of users.

$ sudo chgrp users /home/wadea

Check Contents

Verify the assigned home directory of all local interactive users is group owned by that user's primary GID using the following command.

Note: This may miss local interactive users that have been assigned a privileged user identifier (UID). Evidence of interactive use may be obtained from a number of log files containing system logon information. The returned directory "/home/wadea" is used as an example.

$ sudo ls -ld $(awk -F: '($3>=1000)&&($7 !~ /nologin/){print $6}' /etc/passwd)

drwxr-x--- 2 wadea admin 4096 Jun 5 12:41 wadea

Check the user's primary group using the following command:

$ sudo grep $(grep wadea /etc/passwd | awk -F: ‘{print $4}') /etc/group

admin:x:250:wadea,jonesj,jacksons

If the user home directory referenced in "/etc/passwd" is not group-owned by that user's primary GID, this is a finding.

Vulnerability Number

V-282727

Documentable

False

Rule Version

TOSS-05-000303

Severity Override Guidance

Verify the assigned home directory of all local interactive users is group owned by that user's primary GID using the following command.

Note: This may miss local interactive users that have been assigned a privileged user identifier (UID). Evidence of interactive use may be obtained from a number of log files containing system logon information. The returned directory "/home/wadea" is used as an example.

$ sudo ls -ld $(awk -F: '($3>=1000)&&($7 !~ /nologin/){print $6}' /etc/passwd)

drwxr-x--- 2 wadea admin 4096 Jun 5 12:41 wadea

Check the user's primary group using the following command:

$ sudo grep $(grep wadea /etc/passwd | awk -F: ‘{print $4}') /etc/group

admin:x:250:wadea,jonesj,jacksons

If the user home directory referenced in "/etc/passwd" is not group-owned by that user's primary GID, this is a finding.

Check Content Reference

M

Target Key

5738