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

An XCCDF Rule

Description

Unnecessary service packages must not be installed 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.

ID
SV-269354r1050237_rule
Version
ALMA-09-031040
Severity
Medium
References
Updated

Remediation Templates

A Manual Procedure

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

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

$ systemctl isolate multi-user.target