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CVE-2013-6422

Description

The GnuTLS backend in libcurl 7.21.4 through 7.33.0, when disabling digital signature verification (CURLOPT_SSL_VERIFYPEER), also disables the CURLOPT_SSL_VERIFYHOST check for CN or SAN host name fields, which makes it easier for remote attackers to spoof servers and conduct man-in-the-middle (MITM) attacks.

POC

Reference

- http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html

Github

No PoCs found on GitHub currently.