The specific flaw exists within the usage of the method IShdocvwBroker::PerformDoDragDrop. An attacker who has gained code execution within the Internet Explorer Protected Mode sandbox can leverage this method to place a malicious executable file in any location to which the user has write access. An attacker can leverage this vulnerability to execute code under the context of the user at medium integrity.
Microsoft has issued an update to correct this vulnerability. More details can be found at:
|Ashutosh Mehra (https://twitter.com/ashutoshmehra)