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 restrict the use of the "su" command.

DISA Rule

SV-269363r1050246_rule

Vulnerability Number

V-269363

Group Title

SRG-OS-000109-GPOS-00056

Rule Version

ALMA-09-032470

Severity

CAT II

CCI(s)

• CCI-004045 - Require users to be individually authenticated before granting access to the shared accounts or resources.
• CCI-002165 - Enforce organization-defined discretionary access control policies over defined subjects and objects.

Weight

10

Fix Recommendation

Configure AlmaLinux OS 9 to require users to be in the "wheel" group to run "su" command.

In the "/etc/pam.d/su" file, uncomment the "pam_wheel.so" line as per the instructions in the file:

# Uncomment the following line to require a user to be in the "wheel" group.
#auth required pam_wheel.so use_uid

If necessary, create a "wheel" group and add administrative users to the group.

Check Contents

Verify that AlmaLinux OS 9 requires uses to be members of the "wheel" group with the following command:

$ grep pam_wheel /etc/pam.d/su

auth required pam_wheel.so use_uid

If a line for "pam_wheel.so" does not exist, or is commented out, this is a finding.

Vulnerability Number

V-269363

Documentable

False

Rule Version

ALMA-09-032470

Severity Override Guidance

Verify that AlmaLinux OS 9 requires uses to be members of the "wheel" group with the following command:

$ grep pam_wheel /etc/pam.d/su

auth required pam_wheel.so use_uid

If a line for "pam_wheel.so" does not exist, or is commented out, this is a finding.

Check Content Reference

M

Target Key

5664