All RHEL 9 interactive users must have a primary group that exists.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-258048 | RHEL-09-411045 | SV-258048r1069380_rule | CCI-000764 | medium |
| Description | ||||
| If a user is assigned the Group Identifier (GID) of a group that does not exist on the system, and a group with the GID is subsequently created, the user may have unintended rights to any files associated with the group. | ||||
| STIG | Date | |||
| Red Hat Enterprise Linux 9 Security Technical Implementation Guide | 2025-05-14 | |||
Details
Check Text (C-258048r1069380_chk)
Verify that all RHEL 9 interactive users have a valid GID.
Check that the interactive users have a valid GID with the following command:
$ sudo pwck -r
If pwck reports "no group" for any interactive user, this is a finding.
Fix Text (F-61713r926130_fix)
Configure the system so that all GIDs are referenced in "/etc/passwd" are defined in "/etc/group".
Edit the file "/etc/passwd" and ensure that every user's GID is a valid GID.