Ensure X Window System is not installed

MediumLevel 1Manual reviewcos

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

How it is checked

Audit method: Manual review

This recommendation cannot be checked automatically. A scan lists it with these instructions when you pass --include-manual.

Verify X Windows System is not installed. The following command should return empty result. # grep xorg /etc/cos-package-info.json

How it is fixed

Fix method: Guidance or infrastructure patch

An OS image update that does not include X Window System is required.

Properties

Operating systems: Any
Tags: container-optimized-oscos
Reference: CIS Google Container-Optimized OS Benchmark v1.2.0 - 2.1.2 Ensure X Window System is not installed