National Cyber Awareness System
Vulnerability Summary for CVE-2013-6422
Original release date:12/23/2013
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.
CVSS Severity (version 2.0):
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: High
Authentication: Not required to exploit
Impact Type:Allows unauthorized disclosure of information; Allows unauthorized modification
References to Advisories, Solutions, and Tools
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External Source: UBUNTU
External Source: DEBIAN
External Source: CONFIRM