VUPEN Security Research Advisory - VUPEN-SR-2008-06 Advisory URL: http://www.vupen.com/english/advisories/2009/1546 June 9, 2009 I. BACKGROUND ----------------------- Microsoft Office Word, included in the Microsoft Office system, is a powerful authoring program that gives you 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 Security discovered a critical vulnerability affecting Microsoft Office Word. This vulnerability is caused by a buffer overflow error within the parsing of certain data within a Word file, which could allow attackers to execute arbitrary code by tricking a user into opening a specially crafted document. III. AFFECTED PRODUCTS -------------------------------- According to the vendor, the following products are affected: - Microsoft Office Word 2007 Service Pack 2 - Microsoft Office Word 2007 Service Pack 1 - Microsoft Office Word 2002 Service Pack 3 - Microsoft Office for Mac 2004 - Microsoft Office for Mac 2008 - Open XML File Format Converter for Mac - Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 1 and Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 2 IV. Exploit Codes & PoC --------------------------- Fully functional remote code execution exploit codes have been developed by VUPEN Security and are available with the in-depth binary analysis of the vulnerability through the VUPEN Exploits & PoCs Service. http://www.vupen.com/exploits V. SOLUTION ----------------- Apply patch MS09-027 : http://www.microsoft.com/technet/security/bulletin/ms09-027.mspx VI. CREDIT -------------- Thse vulnerability was discovered by Nicolas JOLY of VUPEN Security VII. REFERENCES ----------------- http://www.vupen.com/english/advisories/2009/1546 http://www.microsoft.com/technet/security/bulletin/ms09-027.mspx http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0565 VIII. DISCLOSURE TIMELINE -------------------------- 28/11/2008 - Vendor notified 28/11/2008 - Vendor response 20/01/2009 - Status update received 09/06/2009 - Coordinated public Disclosure