TippingPoint Zero Day Initiative

Microsoft Internet Explorer Node Manipulation Memory Corruption Vulnerability

ZDI-07-074: December 11th, 2007


Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 5823, 5824. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows 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 flaw exists due to improper use of the "cloneNode" and "nodeValue" javascript functions. When a specially crafted element is used during a repetitive call to one of these functions memory corruption can occur leading to remote code execution.

Vendor Response

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

Disclosure Timeline

    2007-05-22 - Vulnerability reported to vendor
    2007-12-11 - Coordinated public release of advisory


This vulnerability was discovered by:
    Sam Thomas