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Firefox "wyciwyg://" Handler Vulnerability

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Release Date:  2007-07-10    Last Update:  2007-07-18    Views:  20,469

Secunia Advisory SA25990

Where:

From remote

Impact:

Spoofing, Exposure of sensitive information

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Michal Zalewski has discovered a vulnerability in Mozilla Firefox, which can be exploited by malicious people to disclose sensitive information and conduct spoofing attacks.

The vulnerability is caused due to an error in the handling of the "wyciwyg://" URI handler. This can be exploited to access or spoof contents from a previously cached web site e.g. via HTTP 302 redirects when a user visits a malicious web page.

The vulnerability is confirmed in version 2.0.0.4. Other versions may also be affected.


Solution:
Update to version 2.0.0.5.

Provided and/or discovered by:
Michal Zalewski

Original Advisory:
Mozilla:
http://www.mozilla.org/security/announce/2007/mfsa2007-24.html

http://lcamtuf.coredump.cx/ffcache/

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Firefox "wyciwyg://" Handler Vulnerability

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