Firefox "Save Link As..." Status Bar Spoofing Weakness
Secunia Advisory: SA14565
Release Date: 2005-03-14
Last Update: 2005-07-14
Popularity: 30,541 views

Critical:
Not critical
Impact: Spoofing
Where: From remote
Solution Status: Vendor Patch

Software:Mozilla Firefox 0.x
Mozilla Firefox 1.x

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Description:
bitlance winter has discovered a weakness in Firefox, which can be exploited by malicious people to trick users into saving malicious files by obfuscating URLs.

The status bar cannot be manipulated via script code in the default settings. However, it is still possible to display an incorrect URL in the status bar when hovering the mouse over a link, right clicking, and choosing "Save Link As...".

This can be exploited by including a nested link in a table inside a link.

The weakness is related to:
SA13015

Example:
<a href="[TRUSTED_URL]">
<table><tr><td>
<a href="[MALICIOUS_URL]">download
</a>
</td></tr></table>
</a>

The weakness has been confirmed in version 1.0.1. Other versions may also be affected.

Solution:
Update to version 1.0.5.
http://www.mozilla.org/products/firefox/

Provided and/or discovered by:
bitlance winter

Changelog:
2005-07-14: Updated "Solution" section.

Other References:
SA13015:
http://secunia.com/advisories/13015/


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