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Date: Tue, 19 Mar 2013 10:18:45 +0100 From: VUPEN Security Research <advisories@...en.com> To: bugtraq@...urityfocus.com Subject: VUPEN Security Research - Microsoft Internet Explorer 10-9-8-7-6 "OnResize" Use-after-free (MS13-021 / CVE-2013-0087) VUPEN Security Research - Microsoft Internet Explorer 10-9-8-7-6 "OnResize" Use-after-free (MS13-021 / CVE-2013-0087) Website : http://www.vupen.com Twitter : http://twitter.com/vupen I. BACKGROUND --------------------- "Microsoft Internet Explorer is a web browser developed by Microsoft and included as part of the Microsoft Windows line of operating systems with more than 60% of the worldwide usage share of web browsers." (Wikipedia) II. DESCRIPTION --------------------- VUPEN Vulnerability Research Team discovered a critical vulnerability in Microsoft Internet Explorer. The vulnerability is caused by a use-after-free error within the MSHTML "CElement::EnsureRecalcNotify()" function when processing "onResize" events, which could be exploited by remote attackers to compromise a vulnerable system via a malicious web page. III. AFFECTED PRODUCTS --------------------------- Microsoft Internet Explorer 10 Microsoft Internet Explorer 9 Microsoft Internet Explorer 8 Microsoft Internet Explorer 7 Microsoft Internet Explorer 6 Microsoft Windows 8 for 32-bit Systems Microsoft Windows 8 for x64-based Systems Microsoft Windows 7 for 32-bit Systems Microsoft Windows 7 for 32-bit Systems Service Pack 1 Microsoft Windows 7 for x64-based Systems Microsoft Windows 7 for x64-based Systems Service Pack 1 Microsoft Windows Server 2008 for 32-bit Systems Microsoft Windows Server 2008 for 32-bit Systems Service Pack 2 Microsoft Windows Server 2008 for x64-based Systems Microsoft Windows Server 2008 for x64-based Systems Service Pack 2 Microsoft Windows Server 2008 for Itanium-based Systems Microsoft Windows Server 2008 for Itanium-based Systems Service Pack 2 Microsoft Windows Server 2008 R2 for x64-based Systems Microsoft Windows Server 2008 R2 for x64-based Systems Service Pack 1 Microsoft Windows Server 2008 R2 for Itanium-based Systems Microsoft Windows Server 2008 R2 for Itanium-based Systems Service Pack 1 Microsoft Windows Vista Service Pack 1 Microsoft Windows Vista Service Pack 2 Microsoft Windows Vista x64 Edition Service Pack 1 Microsoft Windows Vista x64 Edition Service Pack 2 Microsoft Windows Server 2003 Service Pack 2 Microsoft Windows Server 2003 x64 Edition Service Pack 2 Microsoft Windows Server 2003 with SP2 for Itanium-based Systems Microsoft Windows XP Service Pack 3 Microsoft Windows XP Professional x64 Edition Service Pack 2 IV. Binary Analysis & Exploits/PoCs --------------------------------------- In-depth technical analysis of the vulnerability and a fully functional remote code execution exploit are 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 ---------------- Apply MS13-021 security updates. VII. CREDIT -------------- This vulnerability was discovered by Nicolas Joly 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 ---------------------- https://technet.microsoft.com/en-us/security/bulletin/ms13-021 http://www.vupen.com/english/research.php X. DISCLOSURE TIMELINE ----------------------------- 2010-06-29 - Vulnerability Discovered by VUPEN and shared with VUPEN TPP customers 2013-03-12 - MS13-021 security bulletin released 2013-03-18 - Public disclosure
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