RHEL 10 must not allow duplicate user IDs (UIDs) to exist for interactive users.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-281172 | SRG-OS-000104-GPOS-00051 | RHEL-10-600130 | SV-281172r1166468_rule | 2026-03-11 | 1 |
Description
To ensure accountability and prevent unauthenticated access, interactive users must be identified and authenticated to prevent potential misuse and compromise of the system.
Satisfies: SRG-OS-000104-GPOS-00051, SRG-OS-000121-GPOS-00062
ℹ️ Check
Verify RHEL 10 contains no duplicate UIDs for interactive users with the following command:
$ sudo awk -F ":" 'list[$3]++{print $1, $3}' /etc/passwd
If output is produced and the accounts listed are interactive user accounts, this is a finding.
✔️ Fix
Configure RHEL 10 to not allow duplicate UIDs to exist for interactive users.
Edit the file "/etc/passwd", and provide each interactive user account that has a duplicate UID with a unique UID.