A vulnerability has been identified in Microsoft Internet Explorer, which could be exploited by attackers to gain unauthorized access to arbitrary files. This flaw is due to a design error where keystroke events are cancellable via JavaScript, which could be exploited by remote attackers to trick users into uploading arbitrary files from a vulnerable system to a malicious host by convincing them to visit a specially crafted Web page and perform certain actions (e.g. write a specific text in a text field) that will cause an arbitrary file to be inadvertently uploaded.
Note : A proof of concept exploit has been released.
Credits
Vulnerability reported by Charles McAuley
ChangeLog
2006-06-06 : Initial release
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