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>> Multiple Browsers URL and SSL Certificates Spoofing Vulnerability

Title : Multiple Browsers URL and SSL Certificates Spoofing Vulnerability
VUPEN ID : VUPEN/ADV-2005-0112
CVE ID : CVE-2005-0233 - CVE-2005-0234 - CVE-2005-0235 - CVE-2005-0236 - CVE-2005-0237 - CVE-2005-0238
CWE ID : VUPEN VNS Only
CVSS V2 : VUPEN VNS Only
Rated as : Moderate Risk 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2005-02-07


Technical Description    Receive VUPEN Security alerts in a Text format  Receive VUPEN Security alerts in a PDF format  Receive VUPEN Security alerts in an XML format 

A new vulnerability was reported in several web browsers, which may be exploited by attackers to conduct phishing/spoofing attacks and display fake domain names. The problem resides in the IDN (International Domain Name) implementation and occurs when handling malformed URLs containing specially crafted characters, which may be exploited to spoof SSL certificates and the URL displayed in the address/status bar.

Example :
The URL https://www.pаypal.com will display https://www.paypal.com (and points to https://www.xn--pypal-4ve.com)

Affected Products

Mozilla 1.7.5 and earlier
Firefox 1.0 and earlier
Opera version 7.54u2 and earlier
Safari version 1.2.4 (v125.1) and earlier
OmniWeb version 5.1 and earlier
Konqueror version 3.2.2 and earlier

Solution

Firefox 1.0.1 - http://www.mozilla.org/products/firefox/all.html
Opera 8.0b2 - http://www.opera.com/download/?ver=8.0b2
Safari - http://docs.info.apple.com/article.html?artnum=301116

References

http://www.vupen.com/english/advisories/2005/0112
http://www.shmoo.com/idn/homograph.txt

Credits

Vulnerability reported by Eric Johanson

ChangeLog

2005-02-07 : Initial release
2005-02-09 : Updated CVE
2005-02-25 : Firefox Patch
2005-02-28 : Opera Patch
2005-03-22 : Safari Patch

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