Microsoft Internet Explorer CDispNode t:MEDIA Remote Code Execution VulnerabilityZDI-12-035: February 22nd, 2012
TippingPoint™ IPS Customer ProtectionTippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 12065. For further product information on the TippingPoint IPS:
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 ResponseMicrosoft has issued an update to correct this vulnerability. More details can be found at:
2011-10-21 - Vulnerability reported to vendor
2012-02-22 - Coordinated public release of advisory
CreditThis vulnerability was discovered by:
Stephen Fewer of Harmony Security (www.harmonysecurity.com)