CCE-95099-8| Platform: cpe:/o:ubuntu:ubuntu_linux:22.04, cpe:/o:ubuntu:ubuntu_linux:20.04, cpe:/o:debian:debian_linux:11.x, cpe:/o:ubuntu:ubuntu_linux:23.04 | Date: (C)2020-10-15 (M)2023-09-01 |
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.
Note: The patch can lead to login loop hence it is advised to check official page.
Rationale:
Unless your organization specifically requires graphical login access via X Windows, remove it to reduce the potential attack surface.
Fix:
Uninstall X Windows:
# apt-get purge xserver-xorg-core*
Parameter:
[yes/no]
Technical Mechanism:
Uninstall X Windows:
# apt-get purge xserver-xorg-core*
| CCSS Severity: | CCSS Metrics: |
| CCSS Score : 8.8 | Attack Vector: NETWORK |
| Exploit Score: 2.8 | Attack Complexity: LOW |
| Impact Score: 5.9 | Privileges Required: LOW |
| Severity: HIGH | User Interaction: NONE |
| Vector: AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | Scope: UNCHANGED |
| | Confidentiality: HIGH |
| | Integrity: HIGH |
| | Availability: HIGH |
| | |
References: | Resource Id | Reference |
|---|
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:65983 |
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:92293 |
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:87315 |
| SCAP Repo OVAL Definition | oval:org.secpod.oval:def:85171 |
