STIGQter: STIG Summary: Oracle Linux 9 Security Technical Implementation Guide Version: 1 Release: 6 Benchmark Date: 01 Jul 2026:

OL 9 duplicate User IDs (UIDs) must not exist for interactive users.

DISA Rule

SV-271832r1092208_rule

Vulnerability Number

V-271832

Group Title

SRG-OS-000104-GPOS-00051

Rule Version

OL09-00-003001

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.
• CCI-000135 - Generate audit records containing the organization-defined additional information that is to be included in the audit records.

Weight

10

Fix Recommendation

Edit the file "/etc/passwd" and provide each interactive user account that has a duplicate UID with a unique UID.

Check Contents

Verify that OL 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.

Vulnerability Number

V-271832

Documentable

False

Rule Version

OL09-00-003001

Severity Override Guidance

Verify that OL 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.

Check Content Reference

M

Target Key

5680