VUPEN Security Research - Microsoft Office Word BKF Objects Array Indexing Vulnerability (CVE-2010-3219) http://www.vupen.com/english/research.php I. BACKGROUND --------------------- Microsoft Office Word, included in the Microsoft Office suite, is a powerful authoring program that gives the ability to create and share documents by combining a comprehensive set of writing tools with the easy-to-use Microsoft Office Fluent user interface. II. DESCRIPTION --------------------- VUPEN Vulnerability Research Team discovered a critical vulnerability in Microsoft Office Word. The vulnerability is caused by an array indexing error when processing BKF objects in a Word document, which could be exploited by remote attackers to execute arbitrary code by tricking a user into opening a specially crafted Word file. III. AFFECTED PRODUCTS --------------------------- Microsoft Office XP Service Pack 3 IV. Binary Analysis & Exploits/PoCs --------------------------------------- In-depth binary analysis of the vulnerabilities fixed by Microsoft in October 2010 and code execution exploits or PoCs 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 MS10-079 security update. VII. CREDIT -------------- This vulnerability was discovered by Chaouki Bekrar 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/2010/2626 http://www.microsoft.com/technet/security/bulletin/ms10-079.mspx http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-3219 X. DISCLOSURE TIMELINE ----------------------------- 2010-05-05 - Vendor notified 2010-05-05 - Vendor response 2010-08-09 - Status update received 2010-10-12 - Coordinated public Disclosure