2.2.2 Ensure X Window System is not installed (Scored)
Profile Applicability
Level 1 - Server
Description
The X Window System provides a Graphical User Interface (GUI) where users can have multiple windows in which to run programs and various add on. The X Windows system is typically used on workstations where users login, but not on servers where users typically do not login.
Rationale
Unless your organization specifically requires graphical login access via X Windows, remove it to reduce the potential attack surface.
Audit
Run the following command and verify no output is returned:
# rpm -qa xorg-x11*
Remediation
Run the following command to remove the X Windows System packages:
# yum remove xorg-x11*