Advisory Details

June 11th, 2015

(Pwn2Own) Microsoft Internet Explorer Protocol Handler Sandbox Escape Vulnerability

CVE ID	CVE-2015-1748
CVSS SCORE	6.9, AV:L/AC:M/Au:N/C:C/I:C/A:C
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 ['19617']. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS	This vulnerability allows 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 the usage of res:// and Windows Help Engine. By running specially crafted JavaScript, a 32-bit medium integrity process can be spawned. By injecting privileged javascript into this process, an attacker can leverage this vulnerability to execute code under the context of a medium integrity 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	lokihardt@ASRT

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