Scientific Linux Security Update : xorg-x11-server on SL7.x x86_64 (20181031) - Nessus

Medium Plugin ID: 119207

This page contains detailed information about the Scientific Linux Security Update : xorg-x11-server on SL7.x x86_64 (20181031) Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Table Of Contents

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Plugin Overview
Vulnerability Information

Synopsis
Description
Solution

Public Exploits
Risk Information
Plugin Source
How to Run
References
Version

Plugin Overview

ID: 119207
Name: Scientific Linux Security Update : xorg-x11-server on SL7.x x86_64 (20181031)
Filename: sl_20181031_xorg_x11_server_on_SL7_x.nasl
Vulnerability Published: 2018-10-25
This Plugin Published: 2018-11-27
Last Modification Time: 2021-03-23
Plugin Version: 1.6
Plugin Type: local
Plugin Family: Scientific Linux Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/cpu, Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list

Vulnerability Information

Synopsis

The remote Scientific Linux host is missing one or more security updates.

Description

Security Fix(es) :

- xorg-x11-server: Incorrect permission check in Xorg X server allows for privilege escalation (CVE-2018-14665)

The SL Team added a fix for upstream bug 1650634

Solution

Update the affected packages.

Public Exploits

Target Network Port(s): N/A
Target Asset(s): N/A
Exploit Available: True (Metasploit Framework, Exploit-DB, GitHub)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the Scientific Linux Security Update : xorg-x11-server on SL7.x x86_64 (20181031) vulnerability:

Metasploit: exploit/multi/local/xorg_x11_suid_server_modulepath
[Xorg X11 Server SUID modulepath Privilege Escalation]
Metasploit: exploit/aix/local/xorg_x11_server
[Xorg X11 Server Local Privilege Escalation]
Metasploit: exploit/multi/local/xorg_x11_suid_server
[Xorg X11 Server SUID logfile Privilege Escalation]
Exploit-DB: exploits/multiple/local/45697.txt
[EDB-45697: xorg-x11-server < 1.20.3 - Local Privilege Escalation]
Exploit-DB: exploits/openbsd/local/45742.sh
[EDB-45742: xorg-x11-server 1.20.3 - Privilege Escalation]
Exploit-DB: exploits/linux/local/45832.py
[EDB-45832: xorg-x11-server < 1.20.1 - Local Privilege Escalation]
Exploit-DB: exploits/multiple/local/45908.rb
[EDB-45908: Xorg X11 Server - SUID privilege escalation (Metasploit)]
Exploit-DB: exploits/multiple/local/45922.sh
[EDB-45922: xorg-x11-server < 1.20.3 - 'modulepath' Local Privilege Escalation]
Exploit-DB: exploits/aix/local/45938.pl
[EDB-45938: Xorg X11 Server (AIX) - Local Privilege Escalation]
Exploit-DB: exploits/solaris/local/46142.sh
[EDB-46142: xorg-x11-server < 1.20.3 (Solaris 11) - 'inittab Local Privilege Escalation]
Exploit-DB: exploits/unix/local/47701.rb
[EDB-47701: Xorg X11 Server - Local Privilege Escalation (Metasploit)]
GitHub: https://github.com/0xdea/exploits
[CVE-2018-14665]
GitHub: https://github.com/Apri1y/Red-Team-links
[CVE-2018-14665]
GitHub: https://github.com/Echocipher/Resource-list
[CVE-2018-14665]
GitHub: https://github.com/anoaghost/Localroot_Compile
[CVE-2018-14665]
GitHub: https://github.com/bolonobolo/CVE-2018-14665
[CVE-2018-14665]
GitHub: https://github.com/hackerhouse-opensource/exploits
[CVE-2018-14665]
GitHub: https://github.com/hudunkey/Red-Team-links
[CVE-2018-14665]
GitHub: https://github.com/john-80/-007
[CVE-2018-14665]
GitHub: https://github.com/jondonas/linux-exploit-suggester-2
[CVE-2018-14665]
GitHub: https://github.com/lp008/Hack-readme
[CVE-2018-14665]
GitHub: https://github.com/samueldustin/cve-2018-14665
[CVE-2018-14665]
GitHub: https://github.com/slimdaddy/RedTeam
[CVE-2018-14665]
GitHub: https://github.com/xiaoZ-hc/redtool
[CVE-2018-14665]
GitHub: https://twitter.com/hackerfantastic/status/1055517801224396800
[CVE-2018-14665]
GitHub: https://github.com/jas502n/CVE-2018-14665
[CVE-2018-14665: OpenBsd_CVE-2018-14665]

Before running any exploit against any system, make sure you are authorized by the owner of the target system(s) to perform such activity. In any other case, this would be considered as an illegal activity.

WARNING: Beware of using unverified exploits from sources such as GitHub or Exploit-DB. These exploits and PoCs could contain malware. For more information, see how to use exploits safely.

Risk Information

CVSS V2 Vector [?]: AV:L/AC:L/Au:N/C:C/I:C/A:C/E:F/RL:OF/RC:C

CVSS Base Score:	7.2 (High)
Impact Subscore:	10.0
Exploitability Subscore:	3.9
CVSS Temporal Score:	6.0 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	6.0 (Medium)

CVSS V3 Vector: CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

CVSS Base Score:	6.6 (Medium)
Impact Subscore:	5.9
Exploitability Subscore:	0.7
CVSS Temporal Score:	6.1 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	6.1 (Medium)

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Plugin Source

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#

include("compat.inc");

if (description)
{
  script_id(119207);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/03/23");

  script_cve_id("CVE-2018-14665");

  script_name(english:"Scientific Linux Security Update : xorg-x11-server on SL7.x x86_64 (20181031)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis",
    value:
"The remote Scientific Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description",
    value:
"Security Fix(es) :

  - xorg-x11-server: Incorrect permission check in Xorg X
    server allows for privilege escalation (CVE-2018-14665)

The SL Team added a fix for upstream bug 1650634"
  );
  # https://listserv.fnal.gov/scripts/wa.exe?A2=ind1811&L=scientific-linux-errata&F=&S=&P=806
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?88ddb2fe"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Xorg X11 Server SUID modulepath Privilege Escalation');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:xorg-x11-server-Xdmx");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:xorg-x11-server-Xephyr");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:xorg-x11-server-Xnest");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:xorg-x11-server-Xorg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:xorg-x11-server-Xvfb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:xorg-x11-server-Xwayland");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:xorg-x11-server-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:xorg-x11-server-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:xorg-x11-server-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:xorg-x11-server-source");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/10/25");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/10/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/11/27");
  script_set_attribute(attribute:"in_the_news", value:"true");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Scientific Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux");
os_ver = pregmatch(pattern: "Scientific Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Scientific Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Scientific Linux 7.x", "Scientific Linux " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);


flag = 0;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"xorg-x11-server-Xdmx-1.20.1-5.1.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"xorg-x11-server-Xephyr-1.20.1-5.1.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"xorg-x11-server-Xnest-1.20.1-5.1.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"xorg-x11-server-Xorg-1.20.1-5.1.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"xorg-x11-server-Xvfb-1.20.1-5.1.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"xorg-x11-server-Xwayland-1.20.1-5.1.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"xorg-x11-server-common-1.20.1-5.1.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"xorg-x11-server-debuginfo-1.20.1-5.1.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"xorg-x11-server-devel-1.20.1-5.1.el7")) flag++;
if (rpm_check(release:"SL7", reference:"xorg-x11-server-source-1.20.1-5.1.el7")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xorg-x11-server-Xdmx / xorg-x11-server-Xephyr / etc");
}

The latest version of this script can be found in these locations depending on your platform:

Linux / Unix:
/opt/nessus/lib/nessus/plugins/sl_20181031_xorg_x11_server_on_SL7_x.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\sl_20181031_xorg_x11_server_on_SL7_x.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/sl_20181031_xorg_x11_server_on_SL7_x.nasl

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How to Run

Here is how to run the Scientific Linux Security Update : xorg-x11-server on SL7.x x86_64 (20181031) as a standalone plugin via the Nessus web user interface (https://localhost:8834/):

Click to start a New Scan.
Select Advanced Scan.
Navigate to the Plugins tab.
On the top right corner click to Disable All plugins.
On the left side table select Scientific Linux Local Security Checks plugin family.
On the right side table select Scientific Linux Security Update : xorg-x11-server on SL7.x x86_64 (20181031) plugin ID 119207.
Specify the target on the Settings tab and click to Save the scan.
Run the scan.

Here are a few examples of how to run the plugin in the command line. Note that the examples below demonstrate the usage on the Linux / Unix platform.

Basic usage:

/opt/nessus/bin/nasl sl_20181031_xorg_x11_server_on_SL7_x.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a sl_20181031_xorg_x11_server_on_SL7_x.nasl -t <IP/HOST>

Run the plugin with trace script execution written to the console (useful for debugging):

/opt/nessus/bin/nasl -T - sl_20181031_xorg_x11_server_on_SL7_x.nasl -t <IP/HOST>

Run the plugin with using a state file for the target and updating it (useful for running multiple plugins on the target):

/opt/nessus/bin/nasl -K /tmp/state sl_20181031_xorg_x11_server_on_SL7_x.nasl -t <IP/HOST>

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References

See also:

Similar and related Nessus plugins:

119626 - AIX 6.1 TL 9 : xorg (IJ11000)
119627 - AIX 7.1 TL 4 : xorg (IJ11544)
119628 - AIX 7.1 TL 5 : xorg (IJ11545)
119629 - AIX 7.2 TL 0 : xorg (IJ11546)
119630 - AIX 7.2 TL 1 : xorg (IJ11547)
119631 - AIX 7.2 TL 2 : xorg (IJ11549)
119632 - AIX 7.2 TL 3 : xorg (IJ11550)
119633 - AIX 5.3 TL 12 : xorg (IJ11551)
119006 - CentOS 7 : xorg-x11-server (CESA-2018:3410)
118474 - Debian DSA-4328-1 : xorg-server - security update
130832 - EulerOS 2.0 SP8 : xorg-x11-server (EulerOS-SA-2019-2123)
131913 - EulerOS 2.0 SP2 : xorg-x11-server (EulerOS-SA-2019-2421)
131827 - EulerOS 2.0 SP5 : xorg-x11-server (EulerOS-SA-2019-2553)
132218 - EulerOS 2.0 SP3 : xorg-x11-server (EulerOS-SA-2019-2683)
132816 - EulerOS Virtualization for ARM 64 3.0.5.0 : xorg-x11-server (EulerOS-SA-2020-1062)
134525 - EulerOS Virtualization for ARM 64 3.0.2.0 : xorg-x11-server (EulerOS-SA-2020-1236)
120398 - Fedora 29 : xorg-x11-server (2018-4ab08fedd6)
120575 - Fedora 28 : xorg-x11-server (2018-839720583a)
118509 - GLSA-201810-09 : X.Org X Server: Privilege escalation
127225 - NewStart CGSL CORE 5.04 / MAIN 5.04 : xorg-x11-server Vulnerability (NS-SA-2019-0045)
119025 - openSUSE Security Update : xorg-x11-server (openSUSE-2018-1420)
123375 - openSUSE Security Update : xorg-x11-server (openSUSE-2019-915)
118812 - Oracle Linux 7 : xorg-x11-server (ELSA-2018-3410)
118557 - RHEL 7 : xorg-x11-server (RHSA-2018:3410)
118457 - SUSE SLES11 Security Update : xorg-x11-server (SUSE-SU-2018:3456-1)
120159 - SUSE SLED15 / SLES15 Security Update : xorg-x11-server (SUSE-SU-2018:3680-1)
118492 - Ubuntu 16.04 LTS / 18.04 LTS / 18.10 : X.Org X server vulnerability (USN-3802-1)
119206 - Scientific Linux Security Update : git on SL7.x x86_64 (20181031)
118584 - Scientific Linux Security Update : java-1.7.0-openjdk on SL6.x i386/x86_64 (20181031)
118585 - Scientific Linux Security Update : thunderbird on SL6.x i386/x86_64 (20181031)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file sl_20181031_xorg_x11_server_on_SL7_x.nasl version 1.6. For more plugins, visit the Nessus Plugin Library.

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Scientific Linux Security Update : xorg-x11-server on SL7.x x86_64 (20181031) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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