cyberstrikeus 6.1 Ensure the X Window system is not installed (Scored)
Profile Applicability
- Level 1
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 Window system is typically used on desktops 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 Procedure
Using Command Line
Run the following command:
dpkg -l xserver-xorg-core*
Expected Result
Ensure no matching packages are listed as installed.
Remediation
Using Command Line
Uninstall X Windows:
apt-get purge xserver-xorg-core*
Default Value
Not installed by default on Ubuntu 12.04 LTS Server.
References
- CIS Ubuntu 12.04 LTS Server Benchmark v1.1.0
Profile
Level 1 - Scored