Sploitus

Exploit for Microsoft Office Excel HFPicture Buffer Overflow Vulnerability

seebug Β· 2010-06-10

Exploit Code

MARKDOWN48 lines
## https://sploitus.com/exploit?id=SSV:19765
"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)


II. DESCRIPTION
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VUPEN Vulnerability Research Team discovered a critical vulnerability
affecting Microsoft Office Excel.

The vulnerability is caused by a buffer overflow error when processing
malformed HFPicture (recType 0x866) records, which could be exploited by
attackers to execute arbitrary code by tricking a user into opening
a specially crafted Excel document.


III. AFFECTED PRODUCTS
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Microsoft Office Excel 2002 Service Pack 3
Microsoft Office 2004 for Mac


IV. Binary Analysis & Proof-of-concept
---------------------------------------

In-depth binary analysis of the vulnerability and a proof-of-concept
have been published by VUPEN through the VUPEN Binary Analysis & Exploits
portal :

http://www.vupen.com/exploits/


V. SOLUTION
----------------

Apply MS10-038 security update:
http://www.microsoft.com/technet/security/bulletin/ms10-038.mspx


VI. CREDIT
--------------

The vulnerability was discovered by Nicolas Joly of VUPEN Security