STIGQter: STIG Summary: Cloud Linux AlmaLinux OS 9 Security Technical Implementation Guide Version: 1 Release: 7 Benchmark Date: 01 Jul 2026:

AlmaLinux OS 9 must require a unique superuser's name upon booting into single-user and maintenance modes.

DISA Rule

SV-269138r1137691_rule

Vulnerability Number

V-269138

Group Title

SRG-OS-000080-GPOS-00048

Rule Version

ALMA-09-006400

Severity

CAT II

CCI(s)

• CCI-000213 - Enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies.

Weight

10

Fix Recommendation

Configure AlmaLinux OS 9 to have a unique username for the grub superuser account using the following commands:

$ sed -ri 's/root/superman/' /etc/grub.d/01_users

$ grub2-mkconfig -o /boot/grub2/grub.cfg

Check Contents

Verify the boot loader superuser account has been set with the following command:

$ grep -A1 "superusers" /etc/grub2.cfg

set superusers="superman"
export superusers
password_pbkdf2 superman ${GRUB2_PASSWORD}

In this example "superman" is the actual account name, changed from the default "root".

If superusers contains easily guessable usernames, this is a finding.

Vulnerability Number

V-269138

Documentable

False

Rule Version

ALMA-09-006400

Severity Override Guidance

Verify the boot loader superuser account has been set with the following command:

$ grep -A1 "superusers" /etc/grub2.cfg

set superusers="superman"
export superusers
password_pbkdf2 superman ${GRUB2_PASSWORD}

In this example "superman" is the actual account name, changed from the default "root".

If superusers contains easily guessable usernames, this is a finding.

Check Content Reference

M

Target Key

5664