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[Full-disclosure] ZDI-12-035 : Microsoft Internet Explorer CDispNode t:MEDIA Remote Code Execution Vulnerability

From: ZDI Disclosures (zdi-disclosurestippingpoint.com)
Date: Wed Feb 22 2012 - 13:59:41 CST

Hash: SHA1

ZDI-12-035 : Microsoft Internet Explorer CDispNode t:MEDIA Remote Code
Execution Vulnerability
February 22, 2012

- -- CVE ID:

- -- CVSS:
9, AV:N/AC:L/Au:N/C:P/I:P/A:C

- -- Affected Vendors:


- -- Affected Products:

Microsoft Internet Explorer 9

- -- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 12065.
For further product information on the TippingPoint IPS, visit:


- -- 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

- -- 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)

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