RHEL 9 groups must have unique Group ID (GID).
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-258061 | SRG-OS-000104-GPOS-00051 | RHEL-09-411110 | SV-258061r958482_rule | 2026-02-05 | 2 |
Description
To ensure accountability and prevent unauthenticated access, groups must be identified uniquely to prevent potential misuse and compromise of the system.
ℹ️ Check
Verify that RHEL 9 contains no duplicate GIDs for interactive users with the following command:
$ cut -d : -f 3 /etc/group | uniq -d
If the system has duplicate GIDs, this is a finding.
✔️ Fix
Edit the file "/etc/group" and provide each group that has a duplicate GID with a unique GID.