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The graphical display manager must not be installed on RHEL 8 unless approved.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-230553 | RHEL-08-040320 | SV-230553r599732_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 |
|---|---|
| Red Hat Enterprise Linux 8 Security Technical Implementation Guide | 2020-11-25 |
Details
| Check Text ( C-33222r568405_chk ) |
|---|
| Verify that the system is configured to boot to the command line: $ sudo 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. Verify that a graphical user interface is not installed: $ sudo rpm -qa | grep xorg | grep server Ask the System Administrator if use of a graphical user interface is an operational requirement. If the use of a graphical user interface on the system is not documented with the ISSO, this is a finding. |
| Fix Text (F-33197r568406_fix) |
|---|
| Document the requirement for a graphical user interface with the ISSO or remove the related packages with the following commands: $ sudo rpm -e xorg-x11-server-common $ sudo systemctl set-default multi-user.target |