Public exploit available
Public proof-of-concept or exploit code exists (ExploitDB / Metasploit / Nuclei).

CVE-2018-14665 — Incorrect Authorization in X Server

CWE-863 — Incorrect AuthorizationCWE-271 — Privilege Dropping / Lowering Errors20 documents11 sources
Severity
6.6MEDIUMNVD
EPSS
8.9%
top 7.39%
CISA KEV
Not in KEV
Exploit
PoC available
Public exploit / PoC exists
Affected products
10
X.org Xorg-serverX.org X ServerCanonical Ubuntu Linux+7 more
Timeline
PublishedOct 25
Latest updateMay 13

Description

A flaw was found in xorg-x11-server before 1.20.3. 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.

CVSS vector

CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 0.7 | Impact: 5.9

Affected Packages5 packages

▶Debianx.org/xorg-server< 2:1.20.3-1+3
▶NVDx.org/x_server< 1.20.3

Also affects: Debian Linux 9.0, Ubuntu Linux 16.04, 18.04, 18.10, Enterprise Linux 7.6

Patches

Patch: bugzilla.redhat.com ↗Patch: gitlab.freedesktop.org ↗Patch: gitlab.freedesktop.org ↗

🔴Vulnerability Details

4
GHSA
GHSA-c34f-6cmx-fcvv: A flaw was found in xorg-x11-server before 1↗2022-05-13
▶
CVEList
CVE-2018-14665: A flaw was found in xorg-x11-server before 1↗2018-10-25
▶
OSV
CVE-2018-14665: A flaw was found in xorg-x11-server before 1↗2018-10-25
▶
VulnCheck
x.org x_server Incorrect Authorization↗2018
▶

💥Exploits & PoCs

8
Exploit-DB
Xorg X11 Server - Local Privilege Escalation (Metasploit)↗2019-11-20
▶
Exploit-DB
xorg-x11-server < 1.20.3 (Solaris 11) - 'inittab Local Privilege Escalation↗2019-01-14
▶
Exploit-DB
Xorg X11 Server (AIX) - Local Privilege Escalation↗2018-12-04
▶
Exploit-DB
xorg-x11-server < 1.20.3 - 'modulepath' Local Privilege Escalation↗2018-11-30
▶
Exploit-DB
Xorg X11 Server - SUID privilege escalation (Metasploit)↗2018-11-26
▶

📋Vendor Advisories

3
Ubuntu
X.Org X server vulnerability↗2018-10-26
▶
Red Hat
xorg-x11-server: Incorrect permission check in Xorg X server allows for privilege escalation↗2018-10-25
▶
Debian
CVE-2018-14665: xorg-server - A flaw was found in xorg-x11-server before 1.20.3. An incorrect permission check...↗2018
▶

🕵️Threat Intelligence

1
Tenable
Tweetable Exploit for X.org Server Local Privilege Escalation (CVE-2018-14665) Released↗2018-10-26
▶

💬Community

2
Bugzilla
CVE-2018-14665 xorg-x11-server: Incorrect permission check in Xorg X server allows for privilege escalation [fedora-all]↗2018-10-25
▶
Bugzilla
CVE-2018-14665 xorg-x11-server: Incorrect permission check in Xorg X server allows for privilege escalation↗2018-10-10
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CVE-2018-14665 — Incorrect Authorization in X Server | cvebase