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.
Published 2018-10-25 20:29:00
Updated 2019-10-22 23:15:10
Source Red Hat, Inc.
View at NVD,   CVE.org

Products affected by CVE-2018-14665

Exploit prediction scoring system (EPSS) score for CVE-2018-14665

4.11%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 92 %
Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2018-14665

  • Xorg X11 Server SUID modulepath Privilege Escalation
    Disclosure Date: 2018-10-25
    First seen: 2020-04-26
    exploit/multi/local/xorg_x11_suid_server_modulepath
    This module attempts to gain root privileges with SUID Xorg X11 server versions 1.19.0 < 1.20.3. A permission check flaw exists for -modulepath and -logfile options when starting Xorg. This allows unprivileged users that can start the server the a
  • Xorg X11 Server SUID logfile Privilege Escalation
    Disclosure Date: 2018-10-25
    First seen: 2020-04-26
    exploit/multi/local/xorg_x11_suid_server
    This module attempts to gain root privileges with SUID Xorg X11 server versions 1.19.0 < 1.20.3. A permission check flaw exists for -modulepath and -logfile options when starting Xorg. This allows unprivileged users that can start the server the ab
  • Xorg X11 Server Local Privilege Escalation
    Disclosure Date: 2018-10-25
    First seen: 2020-04-26
    exploit/aix/local/xorg_x11_server
    WARNING: Successful execution of this module results in /etc/passwd being overwritten. This module is a port of the OpenBSD X11 Xorg exploit to run on AIX. A permission check flaw exists for -modulepath and -logfile options when starting Xorg. This allows unprivil

CVSS scores for CVE-2018-14665

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.2
HIGH AV:L/AC:L/Au:N/C:C/I:C/A:C
3.9
10.0
NIST
6.6
MEDIUM CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
0.7
5.9
NIST

CWE ids for CVE-2018-14665

  • The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-14665

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