ZDI-09-086: Microsoft Internet Explorer XHTML DOM Manipulation Memory Corruption Vulnerability

Type securityvulns
Reporter Securityvulns
Modified 2009-12-09T00:00:00


ZDI-09-086: Microsoft Internet Explorer XHTML DOM Manipulation Memory Corruption Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-09-086 December 8, 2009

-- CVE ID: CVE-2009-3671

-- Affected Vendors: Microsoft

-- Affected Products: Microsoft Internet Explorer 8

-- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability by Digital Vaccine protection filter ID 9320. For further product information on the TippingPoint IPS, visit:


-- Vulnerability Details: This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Internet Explorer. User interaction is required in that a user must visit a malicious web page.

The specific flaw exists in the manipulation and parsing of certain HTML tags. The ordering of various objects in a malformed way results in memory corruption resulting in a call to a dangling pointer which can be further leveraged via a heap spray. Exploitation of this vulnerability will lead to remote system compromise 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:


-- Disclosure Timeline: 2009-06-23 - Vulnerability reported to vendor 2009-12-08 - Coordinated public release of advisory

-- Credit: This vulnerability was discovered by: * Sam Thomas of eshu.co.uk

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