TippingPoint Zero Day Initiative

Microsoft Internet Explorer getElementsByTagName Memory Corruption Vulnerability

ZDI-09-047: August 5th, 2009


Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 8360. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Internet Explorer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page.

The specific flaw exists in the appending of elements to an invalid object. When appending malformed elements to a empty DIV element memory corruption can occur. A properly constructed web page can result in remote code execution under the context of the current user.

Vendor Response

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

Disclosure Timeline

    2009-04-28 - Vulnerability reported to vendor
    2009-08-05 - Coordinated public release of advisory


This vulnerability was discovered by:
    wushi&ling of team509