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.
Impact:
Many Linux systems run applications which require a Java runtime. Some Linux Java
packages have a dependency on specific X Windows xorg-x11-fonts. One workaround
to avoid this dependency is to use the "headless" Java packages for your specific Java
runtime, if provided by your distribution.
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.
Impact: Many Linux systems run applications which require a Java runtime. Some Linux Java packages have a dependency on specific X Windows xorg-x11-fonts. One workaround to avoid this dependency is to use the "headless" Java packages for your specific Java runtime, if provided by your distribution.
Audit: Verify X Windows System is not installed:
Nothing should be returned