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Internet Explorer URL parsing vulnerability Vendor Notified 09 December, 2003 # Vulnerability ########## There is a flaw in the way that Internet Explorer displays URLs in the address bar. By opening a specially crafted URL an attacker can open a page that appears to be from a different domain from the current location. # Exploit ########## By opening a window using the http://user@domain nomenclature an attacker can hide the real location of the page by including a 0x01 character after the "@" character. Internet Explorer doesn't display the rest of the URL making the page appear to be at a different domain. # POC ########## http://www.zapthedingbat.com/security/ex01/vun1.htm # Tested ########## Internet Explorer Version 6.0.2800.1106C0 Updates: SP1, Q810847, Q810351, Q822925, Q330994, Q828750, Q824145 # Credit ########## Zap The Dingbat http://www.zapthedingbat.com/