Advisory Details

May 29th, 2013

Microsoft Internet Explorer CMarkup Use-After-Free Remote Code Execution Vulnerability

ZDI-13-097
ZDI-CAN-1783

CVE ID CVE-2013-0090
CVSS SCORE 6.8, (AV:N/AC:M/Au:N/C:P/I:P/A:P)
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Internet Explorer
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 12843. 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 to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists with the handling of DOM manipulations on an embedded child of an <abbr> tag. The process can be made to delete an object resulting in a dangling pointer. The process can be later forced to reuse this pointer resulting in a use-after-free condition. An attacker can leverage this situation to execute code under the context of the user running the browser.

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/ms13-021
DISCLOSURE TIMELINE
  • 2013-02-13 - Vulnerability reported to vendor
  • 2013-05-29 - Coordinated public release of advisory
CREDIT SkyLined
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