TippingPoint Zero Day Initiative
 

Microsoft Internet Explorer CDispNode t:MEDIA Remote Code Execution Vulnerability

ZDI-12-035: February 22nd, 2012

CVE ID

CVSS Score

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 12065. 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 in that a target must visit a malicious page or open a malicious file.

The flaw exists within MSHTML, specifically the handling of an HTML time t:MEDIA element. A t:MEDIA element can be manipulated such that when the page is refreshed a reference to a freed CDispNode object remains allowing the repurpose of this region. A remote attacker can exploit this vulnerability to execute arbitrary code under the context of the process.

Vendor Response

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

Disclosure Timeline

    2011-10-21 - Vulnerability reported to vendor
    2012-02-22 - Coordinated public release of advisory

Credit

This vulnerability was discovered by:
    Stephen Fewer of Harmony Security (www.harmonysecurity.com)