CentOS 5 / 6 / 7 : firefox / xulrunner (CESA-2015:0766) - Nessus

High Plugin ID: 82477

This page contains detailed information about the CentOS 5 / 6 / 7 : firefox / xulrunner (CESA-2015:0766) 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: 82477
Name: CentOS 5 / 6 / 7 : firefox / xulrunner (CESA-2015:0766)
Filename: centos_RHSA-2015-0766.nasl
Vulnerability Published: 2015-04-01
This Plugin Published: 2015-04-01
Last Modification Time: 2021-01-04
Plugin Version: 1.17
Plugin Type: local
Plugin Family: CentOS Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/CentOS/release, Host/CentOS/rpm-list, Host/local_checks_enabled

Vulnerability Information

Severity: High
Vulnerability Published: 2015-04-01
Patch Published: 2015-03-31
CVE [?]: CVE-2015-0801, CVE-2015-0807, CVE-2015-0813, CVE-2015-0815, CVE-2015-0816
CPE [?]: cpe:/o:centos:centos:5, cpe:/o:centos:centos:6, cpe:/o:centos:centos:7, p-cpe:/a:centos:centos:firefox, p-cpe:/a:centos:centos:xulrunner, p-cpe:/a:centos:centos:xulrunner-devel
Exploited by Malware: True

Synopsis

The remote CentOS host is missing one or more security updates.

Description

Updated firefox packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5, 6, and 7.

Red Hat Product Security has rated this update as having Critical security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

Mozilla Firefox is an open source web browser. XULRunner provides the XUL Runtime environment for Mozilla Firefox.

Several flaws were found in the processing of malformed web content. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox. (CVE-2015-0813, CVE-2015-0815, CVE-2015-0801)

A flaw was found in the way documents were loaded via resource URLs in, for example, Mozilla's PDF.js PDF file viewer. An attacker could use this flaw to bypass certain restrictions and under certain conditions even execute arbitrary code with the privileges of the user running Firefox. (CVE-2015-0816)

A flaw was found in the Beacon interface implementation in Firefox. A web page containing malicious content could allow a remote attacker to conduct a Cross-Site Request Forgery (CSRF) attack. (CVE-2015-0807)

Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Christian Holler, Byron Campen, Steve Fink, Mariusz Mlynski, Christoph Kerschbaumer, Muneaki Nishimura, Olli Pettay, Boris Zbarsky, and Aki Helin as the original reporters of these issues.

All Firefox users should upgrade to these updated packages, which contain Firefox version 31.6.0 ESR, which corrects these issues. After installing the update, Firefox must be restarted for the changes to take effect.

Solution

Update the affected firefox and / or xulrunner 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 CentOS 5 / 6 / 7 : firefox / xulrunner (CESA-2015:0766) vulnerability:

Metasploit: exploit/multi/browser/firefox_pdfjs_privilege_escalation
[Firefox PDF.js Privileged Javascript Injection]
Exploit-DB: exploits/multiple/remote/37958.rb
[EDB-37958: Mozilla Firefox - 'pdf.js' Privileged JavaScript Injection (Metasploit)]
GitHub: https://github.com/Afudadi/Firefox-35-37-Exploit
[CVE-2015-0816: CVE-2015-0816 + CVE-2015-0802]

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 Score Source [?]: CVE-2015-0801
CVSS V2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P/E:H/RL:OF/RC:C

CVSS Base Score:	7.5 (High)
Impact Subscore:	6.4
Exploitability Subscore:	10.0
CVSS Temporal Score:	6.5 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	6.5 (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 Red Hat Security Advisory RHSA-2015:0766 and 
# CentOS Errata and Security Advisory 2015:0766 respectively.
#

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

if (description)
{
  script_id(82477);
  script_version("1.17");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2015-0801", "CVE-2015-0807", "CVE-2015-0813", "CVE-2015-0815", "CVE-2015-0816");
  script_xref(name:"RHSA", value:"2015:0766");

  script_name(english:"CentOS 5 / 6 / 7 : firefox / xulrunner (CESA-2015:0766)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote CentOS host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Updated firefox packages that fix multiple security issues are now
available for Red Hat Enterprise Linux 5, 6, and 7.

Red Hat Product Security has rated this update as having Critical
security impact. Common Vulnerability Scoring System (CVSS) base
scores, which give detailed severity ratings, are available for each
vulnerability from the CVE links in the References section.

Mozilla Firefox is an open source web browser. XULRunner provides the
XUL Runtime environment for Mozilla Firefox.

Several flaws were found in the processing of malformed web content. A
web page containing malicious content could cause Firefox to crash or,
potentially, execute arbitrary code with the privileges of the user
running Firefox. (CVE-2015-0813, CVE-2015-0815, CVE-2015-0801)

A flaw was found in the way documents were loaded via resource URLs
in, for example, Mozilla's PDF.js PDF file viewer. An attacker could
use this flaw to bypass certain restrictions and under certain
conditions even execute arbitrary code with the privileges of the user
running Firefox. (CVE-2015-0816)

A flaw was found in the Beacon interface implementation in Firefox. A
web page containing malicious content could allow a remote attacker to
conduct a Cross-Site Request Forgery (CSRF) attack. (CVE-2015-0807)

Red Hat would like to thank the Mozilla project for reporting these
issues. Upstream acknowledges Christian Holler, Byron Campen, Steve
Fink, Mariusz Mlynski, Christoph Kerschbaumer, Muneaki Nishimura, Olli
Pettay, Boris Zbarsky, and Aki Helin as the original reporters of
these issues.

All Firefox users should upgrade to these updated packages, which
contain Firefox version 31.6.0 ESR, which corrects these issues. After
installing the update, Firefox must be restarted for the changes to
take effect."
  );
  # https://lists.centos.org/pipermail/centos-announce/2015-April/021011.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?a26bd333"
  );
  # https://lists.centos.org/pipermail/centos-announce/2015-April/021046.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?5ae005e4"
  );
  # https://lists.centos.org/pipermail/centos-announce/2015-April/021047.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?5bc076b8"
  );
  # https://lists.centos.org/pipermail/centos-announce/2015-March/021009.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?341ef806"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected firefox and / or xulrunner 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:H/RL:OF/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2015-0801");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Firefox PDF.js Privileged Javascript Injection');
  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:centos:centos:firefox");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:xulrunner");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:xulrunner-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:6");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/04/01");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/03/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/04/01");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"CentOS Local Security Checks");

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

  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/CentOS/release");
if (isnull(release) || "CentOS" >!< release) audit(AUDIT_OS_NOT, "CentOS");
os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
os_ver = os_ver[1];
if (! preg(pattern:"^(5|6|7)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 5.x / 6.x / 7.x", "CentOS " + os_ver);

if (!get_kb_item("Host/CentOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


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


flag = 0;
if (rpm_check(release:"CentOS-5", reference:"firefox-31.6.0-2.el5.centos", allowmaj:TRUE)) flag++;

if (rpm_check(release:"CentOS-6", reference:"firefox-31.6.0-2.el6.centos", allowmaj:TRUE)) flag++;

if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"firefox-31.6.0-2.el7.centos", allowmaj:TRUE)) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"xulrunner-31.6.0-2.el7.centos", allowmaj:TRUE)) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"xulrunner-devel-31.6.0-2.el7.centos", allowmaj:TRUE)) 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, "firefox / xulrunner / xulrunner-devel");
}

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

Linux / Unix:
/opt/nessus/lib/nessus/plugins/centos_RHSA-2015-0766.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\centos_RHSA-2015-0766.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/centos_RHSA-2015-0766.nasl

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How to Run

Here is how to run the CentOS 5 / 6 / 7 : firefox / xulrunner (CESA-2015:0766) 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 CentOS Local Security Checks plugin family.
On the right side table select CentOS 5 / 6 / 7 : firefox / xulrunner (CESA-2015:0766) plugin ID 82477.
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 centos_RHSA-2015-0766.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a centos_RHSA-2015-0766.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - centos_RHSA-2015-0766.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 centos_RHSA-2015-0766.nasl -t <IP/HOST>

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References

RHSA | Red Hat Security Advisory:

2015:0766

See also:

Similar and related Nessus plugins:

82510 - CentOS 5 / 7 : thunderbird (CESA-2015:0771)
82512 - Debian DSA-3211-1 : iceweasel - security update
82538 - Debian DSA-3212-1 : icedove - security update
82482 - FreeBSD : mozilla -- multiple vulnerabilities (d0c97697-df2c-4b8b-bff2-cec24dc35af8)
87710 - GLSA-201512-10 : Mozilla Products: Multiple vulnerabilities (Bar Mitzvah) (Logjam)
82499 - Firefox ESR 31.x < 31.6 Multiple Vulnerabilities (Mac OS X)
82500 - Firefox < 37.0 Multiple Vulnerabilities (Mac OS X)
82501 - Mozilla Thunderbird < 31.6 Multiple Vulnerabilities (Mac OS X)
82502 - Firefox ESR 31.x < 31.6 Multiple Vulnerabilities
82503 - Firefox < 37.0 Multiple Vulnerabilities
82504 - Mozilla Thunderbird < 31.6 Multiple Vulnerabilities
82651 - openSUSE Security Update : MozillaFirefox / MozillaThunderbird / mozilla-nspr (openSUSE-2015-290)
82488 - Oracle Linux 5 / 6 / 7 : firefox (ELSA-2015-0766)
82517 - Oracle Linux 6 / 7 : thunderbird (ELSA-2015-0771)
82495 - RHEL 5 / 6 / 7 : firefox (RHSA-2015:0766)
82519 - RHEL 5 / 6 / 7 : thunderbird (RHSA-2015:0771)
82520 - Scientific Linux Security Update : firefox on SL5.x, SL6.x, SL7.x i386/x86_64 (20150401)
82522 - Scientific Linux Security Update : thunderbird on SL5.x, SL6.x, SL7.x i386/x86_64 (20150401)
82739 - SuSE 11.3 Security Update : Mozilla Firefox (SAT Patch Number 10571)
82524 - Ubuntu 12.04 LTS / 14.04 LTS / 14.10 : firefox vulnerabilities (USN-2550-1)
82565 - Ubuntu 12.04 LTS / 14.04 LTS / 14.10 : thunderbird vulnerabilities (USN-2552-1)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file centos_RHSA-2015-0766.nasl version 1.17. For more plugins, visit the Nessus Plugin Library.

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CentOS 5 / 6 / 7 : firefox / xulrunner (CESA-2015:0766) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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