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The xorg-x11-server-common (X Windows) package must not be installed, unless required.


Finding ID Version Rule ID IA Controls Severity
V-218041 RHEL-06-000291 SV-218041r505923_rule Low
Unnecessary packages should not be installed to decrease the attack surface of the system.
Red Hat Enterprise Linux 6 Security Technical Implementation Guide 2020-09-03


Check Text ( C-19522r377138_chk )
To ensure the X Windows package group is removed, run the following command:

$ rpm -qi xorg-x11-server-common

The output should be:

package xorg-x11-server-common is not installed

If it is not, this is a finding.
Fix Text (F-19520r377139_fix)
Removing all packages which constitute the X Window System ensures users or malicious software cannot start X. To do so, run the following command:

# yum groupremove "X Window System"