GLSA-201204-06 : PolicyKit: Multiple vulnerabilities - Nessus

Medium Plugin ID: 59622

This page contains detailed information about the GLSA-201204-06 : PolicyKit: Multiple vulnerabilities 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: 59622
Name: GLSA-201204-06 : PolicyKit: Multiple vulnerabilities
Filename: gentoo_GLSA-201204-06.nasl
Vulnerability Published: N/A
This Plugin Published: 2012-06-21
Last Modification Time: 2021-01-06
Plugin Version: 1.10
Plugin Type: local
Plugin Family: Gentoo Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/Gentoo/qpkg-list, Host/Gentoo/release, Host/local_checks_enabled

Vulnerability Information

Severity: Medium
Vulnerability Published: N/A
Patch Published: 2012-04-17
CVE [?]: CVE-2010-0750, CVE-2011-1485, CVE-2011-4945
CPE [?]: cpe:/o:gentoo:linux, p-cpe:/a:gentoo:linux:polkit

Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-201204-06 (PolicyKit: Multiple vulnerabilities)

Multiple vulnerabilities have been found in PolicyKit: Error messages in the pkexec utility disclose the existence of local files (CVE-2010-0750). The pkexec utility initially checks the effective user ID of its parent process for authorization, instead of checking the real user ID (CVE-2011-1485). Members of the 'wheel' group are able to execute commands as an administrator without a password (CVE-2011-4945). Impact :

A local attacker could gain elevated privileges or sensitive information. Workaround :

There is no known workaround at this time.

Solution

All PolicyKit users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose '>=sys-auth/polkit-0.104-r1'

Public Exploits

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

Here's the list of publicly known exploits and PoCs for verifying the GLSA-201204-06 : PolicyKit: Multiple vulnerabilities vulnerability:

Metasploit: exploit/linux/local/pkexec
[Linux PolicyKit Race Condition Privilege Escalation]
Exploit-DB: exploits/linux/local/17932.c
[EDB-17932: PolicyKit polkit-1 < 0.101 - Local Privilege Escalation]
Exploit-DB: exploits/linux/local/17942.c
[EDB-17942: pkexec - Race Condition Privilege Escalation]
Exploit-DB: exploits/linux/local/35021.rb
[EDB-35021: Linux PolicyKit - Race Condition Privilege Escalation (Metasploit)]
GitHub: https://github.com/Pashkela/CVE-2011-1485
[CVE-2011-1485: CVE-2011-1485 - Published: 2011-04-01 - PolicyKit:]
GitHub: https://github.com/Snoopy-Sec/Localroot-ALL-CVE
[CVE-2011-1485]
GitHub: https://github.com/cedelasen/htb-laboratory
[CVE-2011-1485]
Immunity Canvas: CANVAS

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:M/Au:N/C:C/I:C/A:C/E:F/RL:OF/RC:C

CVSS Base Score:	6.9 (Medium)
Impact Subscore:	10.0
Exploitability Subscore:	3.4
CVSS Temporal Score:	5.7 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	5.7 (Medium)

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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 Gentoo Linux Security Advisory GLSA 201204-06.
#
# The advisory text is Copyright (C) 2001-2015 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike 
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#

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

if (description)
{
  script_id(59622);
  script_version("1.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2010-0750", "CVE-2011-1485", "CVE-2011-4945");
  script_bugtraq_id(39198, 47496);
  script_xref(name:"GLSA", value:"201204-06");

  script_name(english:"GLSA-201204-06 : PolicyKit: Multiple vulnerabilities");
  script_summary(english:"Checks for updated package(s) in /var/db/pkg");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Gentoo host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote host is affected by the vulnerability described in GLSA-201204-06
(PolicyKit: Multiple vulnerabilities)

    Multiple vulnerabilities have been found in PolicyKit:
      Error messages in the pkexec utility disclose the existence of local
        files (CVE-2010-0750).
      The pkexec utility initially checks the effective user ID of its
        parent process for authorization, instead of checking the real user ID
        (CVE-2011-1485).
      Members of the 'wheel' group are able to execute commands as an
        administrator without a password (CVE-2011-4945).
  
Impact :

    A local attacker could gain elevated privileges or sensitive
      information.
  
Workaround :

    There is no known workaround at this time."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/201204-06"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All PolicyKit users should upgrade to the latest version:
      # emerge --sync
      # emerge --ask --oneshot --verbose '>=sys-auth/polkit-0.104-r1'"
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Linux PolicyKit Race Condition Privilege Escalation');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:'CANVAS');

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:polkit");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2012/04/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/06/21");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2021 Tenable Network Security, Inc.");
  script_family(english:"Gentoo Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");

  exit(0);
}


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

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (qpkg_check(package:"sys-auth/polkit", unaffected:make_list("ge 0.104-r1"), vulnerable:make_list("lt 0.104-r1"))) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:qpkg_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = qpkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "PolicyKit");
}

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

Linux / Unix:
/opt/nessus/lib/nessus/plugins/gentoo_GLSA-201204-06.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\gentoo_GLSA-201204-06.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/gentoo_GLSA-201204-06.nasl

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How to Run

Here is how to run the GLSA-201204-06 : PolicyKit: Multiple vulnerabilities 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 Gentoo Local Security Checks plugin family.
On the right side table select GLSA-201204-06 : PolicyKit: Multiple vulnerabilities plugin ID 59622.
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 gentoo_GLSA-201204-06.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a gentoo_GLSA-201204-06.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - gentoo_GLSA-201204-06.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 gentoo_GLSA-201204-06.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID:

39198, 47496

GLSA | Gentoo Linux Security Advisory:

201204-06

See also:

Similar and related Nessus plugins:

56414 - Debian DSA-2319-1 : policykit-1 - race condition
53537 - Fedora 15 : polkit-0.101-5.fc15 (2011-5589)
53849 - Fedora 14 : polkit-0.98-5.fc14 (2011-5676)
53910 - Mandriva Linux Security Advisory : polkit (MDVSA-2011:086)
68258 - Oracle Linux 6 : polkit (ELSA-2011-0455)
122573 - OracleVM 3.3 / 3.4 : polkit (OVMSA-2019-0008)
53500 - RHEL 6 : polkit (RHSA-2011:0455)
61021 - Scientific Linux Security Update : polkit on SL6.x i386/x86_64
54903 - Slackware 13.1 / current : polkit (SSA:2011-109-01)
75605 - openSUSE Security Update : libpolkit0 (openSUSE-SU-2011:0412-1)
75915 - openSUSE Security Update : libpolkit0 (openSUSE-SU-2011:0413-1)
55075 - Ubuntu 9.10 / 10.04 LTS / 10.10 : policykit-1 vulnerability (USN-1117-1)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file gentoo_GLSA-201204-06.nasl version 1.10. For more plugins, visit the Nessus Plugin Library.

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GLSA-201204-06 : PolicyKit: Multiple vulnerabilities - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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