Advisory Details

February 22nd, 2012

Microsoft Internet Explorer CDispNode t:MEDIA Remote Code Execution Vulnerability

ZDI-12-035
ZDI-CAN-1299

CVE ID CVE-2012-0011
CVSS SCORE 9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Internet Explorer 9
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 12065. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
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.

ADDITIONAL DETAILS Microsoft has issued an update to correct this vulnerability. More details can be found at:
http://technet.microsoft.com/en-us/security/bulletin/MS12-010
DISCLOSURE TIMELINE
  • 2011-10-21 - Vulnerability reported to vendor
  • 2012-02-22 - Coordinated public release of advisory
CREDIT Stephen Fewer of Harmony Security (www.harmonysecurity.com)
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