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Opera Browser File Download Extension Spoofing
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Secunia Advisory:
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SA10760
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Release Date:
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2004-02-11
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Last Update:
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2005-08-11
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Critical:
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Moderately critical
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Impact:
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Security Bypass
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Opera 7.x
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| | CVE reference: | CVE-2004-2083 (Secunia mirror)
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Description:
A vulnerability has been discovered in Opera, which can be exploited by malicious web sites to spoof the file extension of downloadable files.
The problem is that Opera can be tricked into opening a file with a different application than indicated by embedding a CLSID in the file name. This can be exploited to trick users into opening "trusted" file types, which are in fact malicious files.
A demonstration of the vulnerability can be found here:
http://secunia.com/Internet_Explorer_File_Download_Extension_Spoofing_Test/
Do you have this product installed on your home computer? Scan using the free Personal Software Inspector. Check if a vulnerable version is installed on computers in your corporate network, using the Network Software Inspector.
Solution:
Update to version 7.50 or later.
Changelog:
2004-04-30: Opera issues fixed version 7.50b1.
2005-08-11: Added CVE reference.
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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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