Advisory Details

June 11th, 2015

(Pwn2Own) Microsoft Internet Explorer mergeAttributes Uninitialized Data Remote Code Execution Vulnerability

CVE ID	CVE-2015-1745
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 ['19603']. 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 how Internet Explorer merges attributes of HTML elements. By manipulating a document's elements an attacker can cause a CAttrValue object to be created with uninitialized data. 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/library/security/MS15-056
DISCLOSURE TIMELINE	2015-03-18 - Vulnerability reported to vendor 2015-06-11 - Coordinated public release of advisory
CREDIT	Yuki Chen of Qihoo 360

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