Advisory Details

May 29th, 2013

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

ZDI-13-083
ZDI-CAN-1694

CVE ID CVE-2013-1309
CVSS SCORE 7.5, (AV:N/AC:L/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 12908. 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 within styles being applied to elements on the DOM causing a negatively positioned CDispNode to be freed. The process can be later forced to reuse this object 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:
https://technet.microsoft.com/en-us/security/bulletin/ms13-037
DISCLOSURE TIMELINE
  • 2013-02-04 - Vulnerability reported to vendor
  • 2013-05-29 - Coordinated public release of advisory
CREDIT SkyLined
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