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Message-ID: <36D600730DFE4577BC0C8D0B604B8DB4@unknown> Date: Wed, 11 Aug 2010 02:54:54 +0200 From: "VUPEN Security Research" <advisories@...en.com> To: <bugtraq@...urityfocus.com> Subject: VUPEN Security Research - Microsoft Internet Explorer "OnPropertyChange_Src()" Use-after-free Vulnerability (CVE-2010-2556) VUPEN Security Research - Microsoft Internet Explorer "OnPropertyChange_Src()" Use-after-free Vulnerability (CVE-2010-2556) http://www.vupen.com/english/research.php 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 affecting Microsoft Internet Explorer. The vulnerability is caused by a use-after-free error within the "OnPropertyChange_Src()" function when handling malformed HTML/JS data, which could be exploited by remote attackers to execute arbitrary code by tricking a user into visiting a specially crafted web page. III. AFFECTED PRODUCTS --------------------------- Microsoft Internet Explorer 8.x Microsoft Internet Explorer 7.x Microsoft Internet Explorer 6.x On Windows 7, Windows 2008, Windows Vista, Windows 2003 and Windows XP. IV. Binary Analysis & Exploits/PoCs --------------------------------------- In-depth binary analysis of the vulnerability and a code execution exploit are available through the VUPEN Binary Analysis & Exploits Service : http://www.vupen.com/english/services/ba-index.php V. VUPEN Threat Protection Program ----------------------------------- Governments and Intelligence agencies who are members of the VUPEN Threat Protection Program (TPP) have been alerted about the vulnerability when it was discovered by VUPEN, and have received a detailed detection guidance to proactively protect national and critical infrastructures against potential attacks exploiting this vulnerability: http://www.vupen.com/english/services/tpp-index.php VI. SOLUTION ---------------- Apply MS10-053 security update. VII. CREDIT -------------- This vulnerability was discovered by Nicolas Joly of VUPEN Security VIII. ABOUT VUPEN Security --------------------------- VUPEN is a leading IT security research company providing vulnerability management and security intelligence solutions which enable enterprises and institutions to eliminate vulnerabilities before they can be exploited, ensure security policy compliance and meaningfully measure and manage risks. Governmental and federal agencies, and global enterprises in the financial services, insurance, manufacturing and technology industries rely on VUPEN to improve their security, prioritize resources, cut time and costs, and stay ahead of the latest threats. * VUPEN Vulnerability Notification Service (VNS) : http://www.vupen.com/english/services/vns-index.php * VUPEN Binary Analysis & Exploits Service (BAE) : http://www.vupen.com/english/services/ba-index.php * VUPEN Threat Protection Program for Govs (TPP) : http://www.vupen.com/english/services/tpp-index.php * VUPEN Web Application Security Scanner (WASS) : http://www.vupen.com/english/services/wass-index.php IX. REFERENCES ---------------------- http://www.vupen.com/english/advisories/2010/2050 http://www.microsoft.com/technet/security/bulletin/ms10-053.mspx http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-2556 X. DISCLOSURE TIMELINE ----------------------------- 2010-04-13 - Vendor and TPP customers notified 2010-04-13 - Vendor response 2010-08-06 - Status update received 2010-08-10 - Coordinated public Disclosure
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