openSUSE Security Update : git (openSUSE-2018-1147) - Nessus

Critical Plugin ID: 118113

This page contains detailed information about the openSUSE Security Update : git (openSUSE-2018-1147) 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: 118113
Name: openSUSE Security Update : git (openSUSE-2018-1147)
Filename: openSUSE-2018-1147.nasl
Vulnerability Published: N/A
This Plugin Published: 2018-10-15
Last Modification Time: 2021-01-19
Plugin Version: 1.6
Plugin Type: local
Plugin Family: SuSE Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/cpu, Host/local_checks_enabled, Host/SuSE/release, Host/SuSE/rpm-list

Vulnerability Information

Synopsis

The remote openSUSE host is missing a security update.

Description

This update for git fixes the following issues :

- CVE-2018-17456: Git allowed remote code execution during processing of a recursive 'git clone' of a superproject if a .gitmodules file has a URL field beginning with a '-' character. (boo#1110949).

Solution

Update the affected git 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 openSUSE Security Update : git (openSUSE-2018-1147) vulnerability:

Metasploit: exploit/multi/http/git_submodule_url_exec
[Malicious Git HTTP Server For CVE-2018-17456]
Exploit-DB: exploits/linux/local/45548.txt
[EDB-45548: Git Submodule - Arbitrary Code Execution (PoC)]
Exploit-DB: exploits/linux/local/45631.md
[EDB-45631: Git Submodule - Arbitrary Code Execution]
GitHub: https://github.com/799600966/CVE-2018-17456
[CVE-2018-17456]
GitHub: https://github.com/AnonymKing/CVE-2017-1000117
[CVE-2018-17456]
GitHub: https://github.com/KorayAgaya/TrivyWeb
[CVE-2018-17456]
GitHub: https://github.com/matlink/CVE-2018-17456
[CVE-2018-17456]
GitHub: https://github.com/shpik-kr/CVE-2018-17456
[CVE-2018-17456: 1-day]
GitHub: https://github.com/siddharthraopotukuchi/trivy
[CVE-2018-17456]
GitHub: https://github.com/simiyo/trivy
[CVE-2018-17456]
GitHub: https://github.com/t31m0/Vulnerability-Scanner-for-Containers
[CVE-2018-17456]
GitHub: https://github.com/umahari/security
[CVE-2018-17456]
GitHub: https://github.com/zhengjim/loophole
[CVE-2018-17456]
GitHub: https://github.com/offensive-security/exploitdb-bin-sploits/blob/master/bin-sploits/45631.zip
[EDB-45631]
GitHub: https://github.com/AnonymKing/CVE-2018-17456
[CVE-2018-17456: CVE-2018-17456漏洞复现（PoC+Exp）]
GitHub: https://github.com/back2zero/GIT_CVE_2018_17456
[CVE-2018-17456: GIT_CVE_2018_17456]

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:N/AC:L/Au:N/C:P/I:P/A:P/E:F/RL:OF/RC:C

CVSS Base Score:	7.5 (High)
Impact Subscore:	6.4
Exploitability Subscore:	10.0
CVSS Temporal Score:	6.2 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	6.2 (Medium)

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

CVSS Base Score:	9.8 (Critical)
Impact Subscore:	5.9
Exploitability Subscore:	3.9
CVSS Temporal Score:	9.1 (Critical)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	9.1 (Critical)

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Plugin Source

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2018-1147.
#
# The text description of this plugin is (C) SUSE LLC.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(118113);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2018-17456");

  script_name(english:"openSUSE Security Update : git (openSUSE-2018-1147)");
  script_summary(english:"Check for the openSUSE-2018-1147 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update for git fixes the following issues :

  - CVE-2018-17456: Git allowed remote code execution during
    processing of a recursive 'git clone' of a superproject
    if a .gitmodules file has a URL field beginning with a
    '-' character. (boo#1110949)."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1110949"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected git packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/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:'Malicious Git HTTP Server For CVE-2018-17456');
  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:novell:opensuse:git");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:git-arch");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:git-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:git-core-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:git-credential-gnome-keyring");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:git-credential-gnome-keyring-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:git-cvs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:git-daemon");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:git-daemon-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:git-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:git-email");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:git-gui");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:git-svn");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:git-svn-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:git-web");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:gitk");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.3");

  script_set_attribute(attribute:"patch_publication_date", value:"2018/10/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/10/15");
  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:"SuSE Local Security Checks");

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

  exit(0);
}


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

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE42\.3)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "42.3", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE42.3", reference:"git-2.13.7-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"git-arch-2.13.7-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"git-core-2.13.7-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"git-core-debuginfo-2.13.7-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"git-credential-gnome-keyring-2.13.7-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"git-credential-gnome-keyring-debuginfo-2.13.7-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"git-cvs-2.13.7-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"git-daemon-2.13.7-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"git-daemon-debuginfo-2.13.7-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"git-debugsource-2.13.7-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"git-email-2.13.7-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"git-gui-2.13.7-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"git-svn-2.13.7-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"git-svn-debuginfo-2.13.7-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"git-web-2.13.7-16.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"gitk-2.13.7-16.1") ) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "git / git-arch / git-core / git-core-debuginfo / etc");
}

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

Linux / Unix:
/opt/nessus/lib/nessus/plugins/openSUSE-2018-1147.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\openSUSE-2018-1147.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/openSUSE-2018-1147.nasl

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How to Run

Here is how to run the openSUSE Security Update : git (openSUSE-2018-1147) 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 SuSE Local Security Checks plugin family.
On the right side table select openSUSE Security Update : git (openSUSE-2018-1147) plugin ID 118113.
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 openSUSE-2018-1147.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a openSUSE-2018-1147.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - openSUSE-2018-1147.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 openSUSE-2018-1147.nasl -t <IP/HOST>

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References

See also:

Similar and related Nessus plugins:

117957 - Debian DSA-4311-1 : git - security update
118059 - Slackware 14.0 / 14.1 / 14.2 / current : git (SSA:2018-283-01)
118083 - Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : Git vulnerability (USN-3791-1)
118103 - Fedora 27 : libgit2 (2018-7d993184f6)
118124 - FreeBSD : Libgit2 -- multiple vulnerabilities (8c08ab4c-d06c-11e8-b35c-001b217b3468)
118169 - openSUSE Security Update : git (openSUSE-2018-1177)
118213 - Amazon Linux AMI : git (ALAS-2018-1093)
118244 - Fedora 27 : git (2018-d5139c4fd6)
118400 - Amazon Linux 2 : git (ALAS-2018-1093)
118555 - RHEL 7 : git (RHSA-2018:3408)
118859 - Oracle Linux 7 : git (ELSA-2018-3408)
119046 - CentOS 7 : git (CESA-2018:3408)
119206 - Scientific Linux Security Update : git on SL7.x x86_64 (20181031)
119516 - EulerOS 2.0 SP3 : git (EulerOS-SA-2018-1388)
119546 - openSUSE Security Update : libgit2 (openSUSE-2018-1517)
119649 - SUSE SLES12 Security Update : git (SUSE-SU-2018:4088-1)
120129 - SUSE SLED15 / SLES15 Security Update : git (SUSE-SU-2018:3150-1)
120182 - SUSE SLED15 / SLES15 Security Update : libgit2 (SUSE-SU-2018:4009-1)
120213 - Fedora 29 : git (2018-06090dff59)
120268 - Fedora 28 : git (2018-1c1a318a0b)
120381 - Fedora 28 : libgit2 (2018-42eab0f5b9)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file openSUSE-2018-1147.nasl version 1.6. For more plugins, visit the Nessus Plugin Library.

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openSUSE Security Update : git (openSUSE-2018-1147) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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