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RHEL 9 duplicate User IDs (UIDs) must not exist for interactive users.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-258045 | RHEL-09-411030 | SV-258045r958482_rule | Medium |
| 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 |
| STIG | Date |
|---|---|
| Red Hat Enterprise Linux 9 Security Technical Implementation Guide | 2024-06-04 |
Details
| Check Text ( C-61786r926120_chk ) |
|---|
| 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 Text (F-61710r926121_fix) |
|---|
| Edit the file "/etc/passwd" and provide each interactive user account that has a duplicate UID with a unique UID. |