IE Address Bar Spoofing

I recently found on securityfocus mailinglist a bug in IE which can be exploited with a simple javascript code to spoof the address bar location…

This allow attacker inject a malicious shockwave-flash application into Internet Explorer while it is display another URL (even trusted sites).

The vulnerability has been confirmed on a fully patched system with Internet Explorer 6.0 + Microsoft Windows XP SP2 and previous versions.
Sample code:

Perform the test

If you are vulnerable you will see the flash intro of buctuong.com while the address bar is http://www.microsoft.com/ If you have a very fast connection you may change my flash application to a larger one to make loading time take longer.

This spoofing technique discovered and proved by

Hai Nam Luke
K46A – NEU, Hanoi