RHEL 9 duplicate User IDs (UIDs) must not exist for interactive users.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-258045 | SRG-OS-000104-GPOS-00051 | RHEL-09-411030 | SV-258045r958482_rule | 2025-02-27 | 2 |
| 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, SRG-OS-000042-GPOS-00020 |
| ℹ️ Check |
|---|
| Verify that RHEL 9 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 |
|---|
| Edit the file "/etc/passwd" and provide each interactive user account that has a duplicate UID with a unique UID. |