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Mozilla Products IDN Spoofing Security Issue
Release Date: 2005-02-07 Last Update: 2006-05-04 Views: 156,706
Secunia Advisory SA14163
Where:
From remote
Impact:
Spoofing,
Solution Status:
Vendor Patch
Software:
CVE Reference(s):
Description
Eric Johanson has reported a security issue in Mozilla / Firefox / Camino / Thunderbird, which can be exploited by a malicious web site to spoof the URL displayed in the address bar, SSL certificate, and status bar.
The problem is caused due to an unintended result of the IDN (International Domain Name) implementation, which allows using international characters in domain names.
This can be exploited by registering domain names with certain international characters that resembles other commonly used characters, thereby causing the user to believe they are on a trusted site.
Secunia has constructed a test, which can be used to check if your browser is affected by this issue:
http://secunia.com/multiple_browsers_idn_spoofing_test/
The issue has been confirmed in Mozilla 1.7.5, Firefox 1.0 and Thunderbird 1.0. Other versions may also be affected.
Solution:
Mozilla Firefox:
Further details available to Secunia VIM customers
Provided and/or discovered by:
Originally described by:
Evgeniy Gabrilovich and Alex Gontmakher
Reported by:
Eric Johanson
Original Advisory:
Mozilla:
http://www.mozilla.org/security/announce/mfsa2005-29.html
Shmoo.com:
http://www.shmoo.com/idn/homograph.txt
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: Mozilla Products IDN Spoofing Security Issue
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