Advisory Details

May 12th, 2015

Microsoft Internet Explorer CElement::DelMarkupPtr Type Confusion Remote Code Execution Vulnerability

CVE ID	CVE-2015-1706
CVSS SCORE	6.8, AV:N/AC:M/Au:N/C:P/I:P/A:P
AFFECTED VENDORS	Microsoft
AFFECTED PRODUCTS	Internet Explorer
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 stores pointers to CMarkup objects. By manipulating a document's elements an attacker can force a pointer to a CSecurityContext object in memory to be interpreted as a pointer to a CMarkup object. 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/MS15-043
DISCLOSURE TIMELINE	2015-02-26 - Vulnerability reported to vendor 2015-05-12 - Coordinated public release of advisory
CREDIT	Zheng Huang of Baidu Scloud XTeam

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