The graphical display manager must not be installed on OL 8 unless approved.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-248898	OL08-00-040320	SV-248898r780260_rule		Medium

Description
Internet services that are not required for system or application processes must not be active to decrease the attack surface of the system. X Windows has a long history of security vulnerabilities and will not be used unless approved and documented.

STIG	Date
Oracle Linux 8 Security Technical Implementation Guide	2022-12-06

Details

Check Text ( C-52332r780258_chk )
Verify that if the system has a display server installed, it is authorized. Check for the display server package with the following example command: $ sudo rpm -qa \| grep xorg \| grep server Ask the System Administrator if use of the display server is an operational requirement. If the use of a display server on the system is not documented with the Information System Security Officer (ISSO), this is a finding.

Check Text ( C-52332r780258_chk )

Verify that if the system has a display server installed, it is authorized.

Check for the display server package with the following example command:

$ sudo rpm -qa | grep xorg | grep server

Ask the System Administrator if use of the display server is an operational requirement.

If the use of a display server on the system is not documented with the Information System Security Officer (ISSO), this is a finding.

Fix Text (F-52286r780259_fix)
Document the requirement for a display server with the ISSO or remove the related packages with the following example command: $ sudo rpm -e xorg-x11-server-common