Advisory Details

August 13th, 2013

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

CVE ID	CVE-2013-3194
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 ['13102']. 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 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 CMarkup::DisconnectTreePos where destruction of a rendered attacker page by close of a tab or browser will trigger a use-after-free vulnerability in this function. An attacker can leverage this vulnerability to execute code under the context of the process.
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/ms13-059
DISCLOSURE TIMELINE	2013-05-13 - Vulnerability reported to vendor 2013-08-13 - Coordinated public release of advisory
CREDIT	Arthur Gerkis

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