Advisory Details

November 19th, 2014

Microsoft Internet Explorer DOMStringMap Type Confusion Remote Code Execution Vulnerability

CVE ID	CVE-2014-6347
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 ['16492']. 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 vulnerability relates to the way Internet Explorer handles requests for properties of objects of type DOMStringMap. If script sets a DOMStringMap object to be the JavaScript prototype of another object of some other type, and then requests a property from the DOMStringMap via its relationship to that other object, Internet Explorer confuses the two types of objects involved. An attacker can leverage this vulnerability to execute code under the context of the current process.
ADDITIONAL DETAILS	Microsoft has issued an update to correct this vulnerability. More details can be found at: https://technet.microsoft.com/en-us/library/security/ms14-065.aspx
DISCLOSURE TIMELINE	2014-07-01 - Vulnerability reported to vendor 2014-11-19 - Coordinated public release of advisory
CREDIT	cloudfuzzer

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