Advisory Details

September 11th, 2013

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

ZDI-13-231
ZDI-CAN-1925

CVE ID CVE-2013-3846
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 13160. 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 an object created by CSpliceTreeEngine::InsertSplice. The process can be forced to reuse a dangling pointer of the 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/ms13-055
DISCLOSURE TIMELINE
  • 2013-06-28 - Vulnerability reported to vendor
  • 2013-09-11 - Coordinated public release of advisory
CREDIT AMol NAik
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