TippingPoint Zero Day Initiative

Microsoft Internet Explorer Table Layout Col Tag Cache Update Remote Code Execution Vulnerability

ZDI-10-011: January 21st, 2010


CVSS Score

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 9428. 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 when a Col element is used within an HTML table container. If this element is removed while the table is in use a cache that exists of the table's cells will be used after one of it's elements has been invalidated. This can lead to code execution under the context 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

    2009-07-14 - Vulnerability reported to vendor
    2010-01-21 - Coordinated public release of advisory


This vulnerability was discovered by:
    wushi of team509