All TOSS local interactive user home directories must be owned by the user's primary group.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-252971 | TOSS-04-020320 | SV-252971r991592_rule | CCI-000366 | medium |
| Description | ||||
| Users' home directories/folders may contain information of a sensitive nature. Non-privileged users should coordinate any sharing of information with an SA through shared resources. | ||||
| STIG | Date | |||
| Tri-Lab Operating System Stack (TOSS) 4 Security Technical Implementation Guide | 2025-05-08 | |||
Details
Check Text (C-252971r991592_chk)
Check that all user home directories are owned by the user's primary group with the following command:
$ awk -F: '($3>=1000)&&($7 !~ /nologin/)&&("stat -c '%g' " $6 | getline dir_group)&&(dir_group!=$4){print $1,$6}' /etc/passwd
admin /home/admin
Check each user's primary group with the following command (example command is for the "admin" user):
$ sudo grep "^admin" /etc/group
admin:x:250:smithj,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.
Fix Text (F-56374r824236_fix)
Change the group owner of interactive user's home directories to that users primary group. 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 "smithj."
$ sudo chgrp smithj /home/smithj