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Internet Explorer Image Control Status Bar Spoofing Weakness Advisory Available in Danish 

Secunia Advisory: SA17565  
Release Date: 2005-11-16
Last Update: 2006-02-03

Critical:
Not critical
Impact: Security Bypass
Where: From remote
Solution Status: Unpatched

Software:Microsoft Internet Explorer 6.x

CVE reference:CVE-2005-4679 (Secunia mirror)

This advisory is currently marked as unpatched!
- Companies can be alerted when a patch is released!


Description:
Claudio "Sverx" has discovered a weakness in Internet Explorer, which can be exploited by malicious people to trick users into visiting a malicious website by obfuscating URLs displayed in the status bar.

The problem is that the browser fails to show the correct URL in the status bar if an image control has been enclosed in a hyperlink and uses a form to specify the destination URL. This may cause a user to follow a link to a seemingly trusted website when in fact the browser opens a malicious website.

This weakness is a variant of:
SA13156

Example:
<form action="[malicious site]">
<a href="[trusted site]"><input type="image" src="[image]"></a>
</form>

The weakness has been confirmed on a fully patched system with Internet Explorer 6.0 and Microsoft Windows XP SP2.

Solution:
Do not follow links from untrusted sources.

Provided and/or discovered by:
Claudio "Sverx"

Other References:
SA13156:
http://secunia.com/advisories/13156/



Please note: The information that this Secunia Advisory is based on comes from a 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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10. Microsoft Internet Explorer Multiple Vulnerabilities

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