ZDI-08-023: Microsoft Office RTF Parsing Engine Memory Corruption Vulnerability May 13 2008 07:19PM
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ZDI-08-023: Microsoft Office RTF Parsing Engine Memory Corruption

Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-08-023

August 14, 2007

-- CVE ID:

CVE-2008-1091

-- Affected Vendors:

Microsoft

-- Affected Products:

Microsoft Office Excel

Microsoft Office Word

-- TippingPoint(TM) IPS Customer Protection:

TippingPoint IPS customers have been protected against this

vulnerability by Digital Vaccine protection filter ID 6099.

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. User interaction is

required to exploit this vulnerability in that the target must visit a

malicious page, open a malicious email, or open a malicious file.

The specific flaw exists when parsing malformed RTF documents. When

processing a combination of RTF tags a heap overflow occurs. Successful

exploitation can lead to remote compromise of a system 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/ms08-026.mspx

-- Disclosure Timeline:

2008-01-21 - Vulnerability reported to vendor

2008-05-13 - Coordinated public release of advisory

-- Credit:

This vulnerability was discovered by:

* wushi of team509

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