VUPEN Security Research - Microsoft Office Excel OBJ Stack Overflow Vulnerability (CVE-2010-0822)
"Microsoft Office Excel is a powerful tool you can use to create and format spreadsheets, and analyze and share information to make more informed decisions. With the Microsoft Office Fluent user interface, rich data visualization, and PivotTable views, professional-looking charts are easier to create and use." (microsoft.com)
VUPEN Vulnerability Research Team discovered a critical vulnerability affecting Microsoft Office Excel.
The vulnerability is caused by a buffer overflow error when processing malformed OBJ (recType 0x5D) records, which could be exploited by attackers to execute arbitrary code by tricking a user into opening a specially crafted Excel document.
Microsoft Office Excel 2002 Service Pack 3 Microsoft Office 2004 for Mac Microsoft Office 2008 for Mac Open XML File Format Converter for Mac
In-depth binary analysis of the vulnerability and a proof-of-concept have been published by VUPEN through the VUPEN Binary Analysis & Exploits portal :
Apply MS10-038 security update: http://www.microsoft.com/technet/security/bulletin/ms10-038.mspx
The vulnerability was discovered by Nicolas Joly of VUPEN Security
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VUPEN Vulnerability Notification Service: http://www.vupen.com/english/services/
VUPEN Binary Analysis & Exploits Service : http://www.vupen.com/exploits/
VUPEN Web Application Security Scanner (WASS): http://www.vupen.com/english/wass/
http://www.vupen.com/english/advisories/2010/1395 http://www.microsoft.com/technet/security/bulletin/ms10-038.mspx http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-0822
2009-11-16 - Vendor notified 2009-11-16 - Vendor response 2010-01-26 - Status update received 2010-03-03 - Status update received 2010-04-27 - Status update received 2010-06-08 - Coordinated public Disclosure