A weakness has been identified in Ruby, which could be exploited to conduct spoofing attacks. This issue is caused by an error in the Net::HTTPS library that fails to properly validate the common name within SSL certificates against the hostname of the server, which could be exploited by attackers to present a cryptographically valid certificate with an invalid CN and spoof an arbitrary web site.
Credits
Vulnerability reported by Chris Clark (iSEC Partners).
ChangeLog
2007-10-03 : Initial release
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