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V-248898

CAT II (Medium)

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

Rule ID

SV-248898r991589_rule

STIG

Oracle Linux 8 Security Technical Implementation Guide

Version

V2R8

CCIs

CCI-000366

Discussion

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.

Check Content

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

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