*Internet Explorer Window Loading Race Condition Address Bar Spoofing*

*Secunia Advisory:* SA19521 Print Advisory <http://secunia.com/advisories/19521/print/> *Release Date:* 2006-04-04

*Critical:*     
Less critical <http://secunia.com/about_secunia_advisories/>
*Impact:*       Spoofing
*Where:*        From remote
*Solution Status:*      Unpatched

*Software:* Microsoft Internet Explorer 6.x <http://secunia.com/product/11/>


Select a product and view a complete list of all Patched/Unpatched Secunia advisories affecting it.

*Description*:
Hai Nam Luke has discovered a vulnerability in Internet Explorer, which can be exploited by malicious people to conduct phishing attacks.

The vulnerability is caused due to a race condition in the loading of web content and Macromedia Flash Format files (".swf") in browser windows. This can be exploited to spoof the address bar in a browser window showing a Flash file from a malicious web site.

NOTE: The impact of exploitation is reduced because the URL of the malicious Flash file is visible in the title of the browser window.

The vulnerability has been confirmed on a fully patched system with Internet Explorer 6.0 and Microsoft Windows XP SP1/SP2. Other versions may also be affected.

*Solution*:
Disable Active Scripting support.

*Provided and/or discovered by*:
Hai Nam Luke


/Please note: The information, which this Secunia Advisory is based upon, comes from third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others./

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