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Mozilla Firefox Maintenance Service Local Privilege Escalation

Mozilla Firefox Maintenance Service Local Privilege Escalation
Posted Jul 8, 2013
Authored by Richard L. | Site vupen.com

VUPEN Vulnerability Research Team discovered high risk vulnerabilities in Mozilla Firefox. The vulnerabilities are caused by errors in the Mozilla Maintenance Service on Windows when interacting with local software, which could allow local unprivileged users to execute arbitrary code with SYSTEM privileges. It is possible to combine these vulnerabilities with a remote Firefox memory corruption to achieve a remote SYSTEM code execution.

tags | advisory, remote, arbitrary, local, vulnerability, code execution
systems | windows
SHA-256 | 6d67487dd7131f3f10ac5977a85cdbc90ed1c00cd95ae50e00f955350a1f8791

Mozilla Firefox Maintenance Service Local Privilege Escalation

Change Mirror Download
VUPEN Security Research - Mozilla Firefox Maintenance Service Local
Privilege Escalation Vulnerabilities

Website : http://www.vupen.com

Twitter : http://twitter.com/vupen


I. BACKGROUND
---------------------

Mozilla Firefox is a free and open source web browser coordinated by
Mozilla Corporation and Mozilla Foundation. As of October 2012, Firefox
has approximately 20% to 24% of worldwide usage share of web browsers,
making it the third most used web browser. (Wikipedia)


II. DESCRIPTION
---------------------

VUPEN Vulnerability Research Team discovered high risk vulnerabilities
in Mozilla Firefox.

The vulnerabilities are caused by errors in the Mozilla Maintenance Service
on Windows when interacting with local software, which could allow local
unprivileged users to execute arbitrary code with SYSTEM privileges.

It is of course possible to combine these vulnerabilities with a remote
Firefox memory corruption to achieve a remote SYSTEM code execution.


III. AFFECTED PRODUCTS
---------------------------

Mozilla Firefox versions prior to 21.0
Mozilla Firefox ESR versions prior to 17.0.6
Mozilla Thunderbird versions prior to 17.0.6
Mozilla Thunderbird ESR versions prior to 17.0.6


IV. Binary Analysis & Exploits/PoCs
---------------------------------------

In-depth technical analysis of the vulnerability and a private exploit will
be available through the VUPEN BAE (Binary Analysis & Exploits) portal:

http://www.vupen.com/english/services/ba-index.php

VUPEN Binary Analysis & Exploits Service provides private exploits and
in-depth technical analysis of the most significant public vulnerabilities
based on disassembly, reverse engineering, protocol analysis, and code
audit.

The service allows governments and major corporations to evaluate risks, and
protect infrastructures and assets against new threats. The service also
allows security vendors (IPS, IDS, AntiVirus) to supplement their internal
research efforts and quickly develop both vulnerability-based and
exploit-based signatures to proactively protect their customers from attacks
and emerging threats.


V. VUPEN Threat Protection Program
-----------------------------------

Governments and major corporations which are members of the VUPEN Threat
Protection Program (TPP) have been proactively alerted about the
vulnerability
when it was discovered by VUPEN in advance of its public disclosure, and
have received a detailed attack detection guidance to protect national and
critical infrastructures against potential 0-day attacks exploiting this
vulnerability:

http://www.vupen.com/english/services/tpp-index.php


VI. SOLUTION
----------------

Upgrade to Mozilla Firefox 21.0 or ESR 17.0.6.

Upgrade to Mozilla Thunderbird or Thunderbird ESR 17.0.6


VII. CREDIT
--------------

This vulnerability was discovered by Richard L. of VUPEN Security


VIII. ABOUT VUPEN Security
---------------------------

VUPEN is the leading provider of defensive and offensive cybersecurity
intelligence and advanced vulnerability research. VUPEN solutions enable
corporations and governments to manage risks, and protect critical networks
and infrastructures against known and unknown vulnerabilities.

VUPEN solutions include:

* VUPEN Binary Analysis & Exploits Service (BAE) :
http://www.vupen.com/english/services/ba-index.php

* VUPEN Threat Protection Program (TPP) :
http://www.vupen.com/english/services/tpp-index.php


IX. REFERENCES
----------------------

http://www.mozilla.org/security/announce/2013/mfsa2013-44.html
http://www.vupen.com/english/research.php


X. DISCLOSURE TIMELINE
-----------------------------

****-**-** - Vulnerability Discovered by VUPEN
2013-05-14 - Vulnerability Fixed by Mozilla
2013-07-08 - Public disclosure
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