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EulerOS Virtualization for ARM 64 3.0.5.0 : xorg-x11-server (EulerOS-SA-2020-1062)

critical Nessus Plugin ID 132816

Synopsis

The remote EulerOS Virtualization for ARM 64 host is missing multiple security updates.

Description

According to the versions of the xorg-x11-server packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

 - An incorrect permission check for -modulepath and
 -logfile options when starting Xorg X server allows unprivileged users with the ability to log in to the system via physical console to escalate their privileges and run arbitrary code under root privileges.(CVE-2018-14665)

 - systemd 242 changes the VT1 mode upon a logout, which allows attackers to read cleartext passwords in certain circumstances, such as watching a shutdown, or using Ctrl-Alt-F1 and Ctrl-Alt-F2. This occurs because the KDGKBMODE (aka current keyboard mode) check is mishandled.(CVE-2018-20839)(CVE-2019-1547)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected xorg-x11-server packages.

See Also

http://www.nessus.org/u?1ac7ca3f

Plugin Details

Severity: Critical

ID: 132816

File Name: EulerOS_SA-2020-1062.nasl

Version: 1.5

Type: local

Published: 1/13/2020

Updated: 5/18/2022

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2018-14665

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

CVSS Score Source: CVE-2018-20839

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:xorg-x11-server-xorg, p-cpe:/a:huawei:euleros:xorg-x11-server-common, cpe:/o:huawei:euleros:uvp:3.0.5.0

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/uvp_version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/13/2020

Exploitable With

Metasploit (Xorg X11 Server SUID modulepath Privilege Escalation)

Reference Information

CVE: CVE-2018-14665, CVE-2018-20839