TOSS 5 duplicate User IDs (UIDs) must not exist for interactive users.

Severity
Group ID
Group Title
Version
Rule ID
Date
STIG Version
mediumV-282489SRG-OS-000104-GPOS-00051TOSS-05-000295SV-282489r1200447_rule2026-04-011

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 TOSS 5 contains no duplicate UIDs for interactive users using 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.