Advisory Details

December 21st, 2012

Microsoft Internet Explorer insertAdjacentText Remote Code Execution Vulnerability

CVE ID	CVE-2012-1879
CVSS SCORE	7.5, AV:N/AC:L/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 specific flaw exists within the way Internet Explorer handles repeated calls to insertAdjacentText. When the size of the element reaches a certain threshold Internet Explorer fails to correctly relocate key elements. An unitialized variable in one of the function can cause memory corruption. This can lead to remote code execution under the context of the program.
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/ms12-037
DISCLOSURE TIMELINE	2012-03-14 - Vulnerability reported to vendor 2012-12-21 - Coordinated public release of advisory
CREDIT	Anonymous

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