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Adobe Flash Player NetStream Remote Code Execution

Adobe Flash Player NetStream Remote Code Execution
Posted Apr 19, 2012
Authored by Nicolas Joly, VUPEN | Site vupen.com

VUPEN Vulnerability Research Team discovered a critical vulnerability in Adobe Flash Player. The vulnerability is caused by an invalid object being used when parsing a malformed video via "NetStream.appendBytes", which could allow remote attackers to leak memory and execute arbitrary code despite ASLR and DEP enabled.

tags | advisory, remote, arbitrary
advisories | CVE-2012-0773
SHA-256 | 9b4488d35212ce158b36f3b2eb967b148fddbf040de1f99a30ab5a53f3202ef4

Adobe Flash Player NetStream Remote Code Execution

Change Mirror Download
VUPEN Security Research - Adobe Flash Player NetStream Remote Code 
Execution Vulnerability (APSB12-07 / CVE-2012-0773)

Website : http://www.vupen.com/english/research.php

Twitter : http://twitter.com/vupen


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

Adobe Flash Player is a cross-platform browser-based application runtime
that delivers uncompromised viewing of expressive applications, content,
and videos across screens and browsers. It is installed on 98% of
computers.


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

VUPEN Vulnerability Research Team discovered a critical vulnerability
in Adobe Flash Player.

The vulnerability is caused by an invalid object being used when parsing
a malformed video via "NetStream.appendBytes", which could allow remote
attackers to leak memory and execute arbitrary code despite ASLR and DEP
enabled.

CVSS Score: 10 (AV:N/AC:L/Au:N/C:C/I:C/A:C)


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

Adobe Flash Player versions prior to 11.2.202.228


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

In-depth technical analysis of the vulnerability and a working exploit
are available through the VUPEN 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. SOLUTION
----------------

Upgrade to Adobe Flash Player version 11.2.202.228.


VI. CREDIT
--------------

This vulnerability was discovered by Nicolas Joly of VUPEN Security


VII. ABOUT VUPEN Security
---------------------------

VUPEN is the leadering provider of advanced vulnerability research for
defensive and offensive cyber security. VUPEN solutions enable corporations
and governments to measure and manage risks, eliminate vulnerabilities
before they can be exploited, and protect critical infrastructures and
assets against known and unknown vulnerabilities.

VUPEN has been recognized as "Company of the Year 2011 in the Vulnerability
Research Market" by Frost & Sullivan.

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


VIII. REFERENCES
----------------------

http://www.adobe.com/support/security/bulletins/apsb12-07.html
http://www.vupen.com/english/research.php


IX. DISCLOSURE TIMELINE
-----------------------------

2012-03-07 - Vulnerability Demonstrated at Pwn20wn
2012-04-18 - Public disclosure
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