6.1 Ensure the X Window system is not installed

Information

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. Unless your organization specifically requires graphical login access via X Windows, remove it to reduce the potential attack surface.

Solution

Uninstall X Windows- # apt-get purge xserver-xorg-core*

See Also

https://workbench.cisecurity.org/files/85

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-7b.

Plugin: Unix

Control ID: c1831a28510ea2bf06add978efdae2f63cd0667432cc346a6fb0645c52b94515