VUPEN Security Research - Microsoft Windows Media Player DVR-MS Buffer Overflow Vulnerability (MS11-092)
Website : http://www.vupen.com/english/research.php
Twitter : http://twitter.com/vupen
Microsoft Windows Media Player (WMP) is a media player and media library application that is used for playing audio, video and viewing images on personal computers running the Microsoft Windows operating system.
VUPEN Vulnerability Research Team discovered a vulnerability in Microsoft Windows Media Player.
The vulnerability is caused by a buffer overflow error in the XDSCodec & Encypter/Decrypter Tagger Filters "ENCDEC.DLL" within Windows Media Player when processing certain fields within a DVR-MS (Digital Video Recording) file, which could be exploited by remote attackers to compromise a vulnerable system via a specially crafted web page or a malicious ".dvr-ms" media file.
Microsoft Windows XP Media Center Edition 2005 Service Pack 3 Microsoft Windows XP Service Pack 3 Microsoft Windows XP Professional x64 Edition Service Pack 2 Microsoft Windows Vista Service Pack 2 Microsoft Windows Vista x64 Edition Service Pack 2 Microsoft Windows 7 (32-bit) Microsoft Windows 7 (32-bit) Service Pack 1 Microsoft Windows 7 (x64) Microsoft Windows 7 (x64) Service Pack 1
In-depth binary analysis of the vulnerability and a proof-of-concept code are available through the VUPEN Binary Analysis & Exploits portal :
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.
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:
Apply the MS11-092 security update.
This vulnerability was discovered by Sebastien Renaud of VUPEN Security
VUPEN is the world leader in 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
2011-05-03 - Vulnerability Discovered by VUPEN and shared with TPP customers 2011-12-16 - Public disclosure