The graphical display manager must not be the default target on OL 8 unless approved.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-252663 | OL08-00-040321 | SV-252663r991589_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. Graphical display managers have a long history of security vulnerabilities and must not be used, unless approved and documented. |
| STIG | Date |
| Oracle Linux 8 Security Technical Implementation Guide | 2024-12-03 |
Details
| Check Text (C-56119r818783_chk) |
| Verify that the system is configured to boot to the command line: $ systemctl get-default multi-user.target If the system default target is not set to "multi-user.target" and the Information System Security Officer (ISSO) lacks a documented requirement for a graphical user interface, this is a finding. |
| Fix Text (F-56069r818784_fix) |
| 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. |