Information
The graphical display manager must not be the default target on OL 8 unless approved.
GROUP ID: V-252663
RULE ID: SV-252663r991589
Internet services that are not required for system or application processes must not be active to decrease the attack surface of the system. Graphical display managers have a long history of security vulnerabilities and must not be used, unless approved and documented.
Solution
Document the requirement for a graphical user interface with the ISSO or reinstall the operating system without the graphical user interface. If reinstallation is not feasible, then continue with the following procedure:
Open an SSH session and enter the following commands:
$ sudo systemctl set-default multi-user.target
A reboot is required for the changes to take effect.