bugtraq - ZDI-10-104: Microsoft Office Excel SxView Record Parsing Remote Code Execution Vulnerability

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Date: Tue, 8 Jun 2010 12:50:48 -0500
From: ZDI Disclosures <zdi-disclosures@...pingpoint.com>
To: "'full-disclosure@...ts.grok.org.uk'" <full-disclosure@...ts.grok.org.uk>,
	"'bugtraq@...urityfocus.com'" <bugtraq@...urityfocus.com>
Subject: ZDI-10-104: Microsoft Office Excel SxView Record Parsing Remote
 Code Execution Vulnerability

ZDI-10-104: Microsoft Office Excel SxView Record Parsing Remote Code Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-10-104
June 8, 2010

-- CVE ID:
CVE-2010-0821

-- Affected Vendors:
Microsoft

-- Affected Products:
Microsoft Office Excel

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 9244. 
For further product information on the TippingPoint IPS, visit:

    http://www.tippingpoint.com

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Microsoft Office Excel. User interaction is
required to exploit this vulnerability in that the target must open a
malicious document.

The specific flaw exists in the parsing of SXVIEW records in an Excel
spreadsheet. Due to the lack of checking when parsing structure items
for the record it is possible to write arbitrary data to a user
controlled address. Successful exploitation can lead to remote code
execution under the credentials of the currently logged in user.

-- Vendor Response:
Microsoft has issued an update to correct this vulnerability. More
details can be found at:

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

-- Disclosure Timeline:
2009-07-14 - Vulnerability reported to vendor
2010-06-08 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Anonymous

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