STIGQter: STIG Summary: Red Hat Enterprise Linux 9 Security Technical Implementation Guide Version: 2 Release: 9 Benchmark Date: 01 Jul 2026:

The root account must be the only account having unrestricted access to RHEL 9 system.

DISA Rule

SV-258059r991589_rule

Vulnerability Number

V-258059

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

RHEL-09-411100

Severity

CAT I

CCI(s)

• CCI-000366 - Implement the security configuration settings.

Weight

10

Fix Recommendation

Change the UID of any account on the system, other than root, that has a UID of "0".

If the account is associated with system commands or applications, the UID should be changed to one greater than "0" but less than "1000". Otherwise, assign a UID of greater than "1000" that has not already been assigned.

Check Contents

Verify that only the "root" account has a UID "0" assignment with the following command:

$ awk -F: '$3 == 0 {print $1}' /etc/passwd

root

If any accounts other than "root" have a UID of "0", this is a finding.

Vulnerability Number

V-258059

Documentable

False

Rule Version

RHEL-09-411100

Severity Override Guidance

Verify that only the "root" account has a UID "0" assignment with the following command:

$ awk -F: '$3 == 0 {print $1}' /etc/passwd

root

If any accounts other than "root" have a UID of "0", this is a finding.

Check Content Reference

M

Target Key

5551