STIGQter: STIG Summary: Red Hat Enterprise Linux 10 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 01 Jul 2026:

RHEL 10 must not allow duplicate user IDs (UIDs) to exist for interactive users.

DISA Rule

SV-281172r1166468_rule

Vulnerability Number

V-281172

Group Title

SRG-OS-000104-GPOS-00051

Rule Version

RHEL-10-600130

Severity

CAT II

CCI(s)

• CCI-000764 - Uniquely identify and authenticate organizational users and associate that unique identification with processes acting on behalf of those users.
• CCI-000804 - Uniquely identify and authenticate non-organizational users or processes acting on behalf of non-organizational users.

Weight

10

Fix Recommendation

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.

Check Contents

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.

Vulnerability Number

V-281172

Documentable

False

Rule Version

RHEL-10-600130

Severity Override Guidance

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.

Check Content Reference

M

Target Key

5733