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

A graphical display manager must not be installed on RHEL 9 unless approved.

DISA Rule

SV-257837r1044910_rule

Vulnerability Number

V-257837

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

RHEL-09-215070

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Document the requirement for a graphical user interface with the ISSO or remove all xorg packages with the following command:

Warning: If you are accessing the system through the graphical user interface, change to the multi-user.target with the following command:

$ sudo systemctl isolate multi-user.target

Warning: Removal of the graphical user interface will immediately render it useless. The following commands must not be run from a virtual terminal emulator in the graphical interface.

$ sudo dnf remove "xorg*"
$ sudo systemctl set-default multi-user.target

Check Contents

Verify that a graphical user interface is not installed with the following command:

$ dnf list --installed "xorg-x11-server-common"
Error: No matching Packages to list

If the "xorg-x11-server-common" package is installed, and the use of a graphical user interface has not been documented with the information system security officer (ISSO) as an operational requirement, this is a finding.

Vulnerability Number

V-257837

Documentable

False

Rule Version

RHEL-09-215070

Severity Override Guidance

Verify that a graphical user interface is not installed with the following command:

$ dnf list --installed "xorg-x11-server-common"
Error: No matching Packages to list

If the "xorg-x11-server-common" package is installed, and the use of a graphical user interface has not been documented with the information system security officer (ISSO) as an operational requirement, this is a finding.

Check Content Reference

M

Target Key

5551