STIGUI
V-258826CAT II — Medium severitySV-258826r958482_rule

The Photon operating system must not have duplicate User IDs (UIDs).

Rule version PHTN-40-000049 · STIG v2 · 2026-08-26

Discussion

To ensure accountability and prevent unauthenticated access, organizational users must be uniquely identified and authenticated to prevent potential misuse and provide for nonrepudiation.

Check

At the command line, run the following command to verify there are no duplicate user IDs present:

# awk -F ":" 'list[$3]++{print $1, $3}' /etc/passwd

If any lines are returned, this is a finding.

Fix

Navigate to and open:

/etc/passwd

Configure each user account that has a duplicate UID with a unique UID.

Identifiers

Group ID
V-258826
Group title
SRG-OS-000104-GPOS-00051
Rule ID
SV-258826r958482_rule
Check ID
C-62566r933537_chk
Fix ID
F-62475r933538_fix