CVE-2013-6422

MEDIUM

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.

References

http://curl.haxx.se/docs/adv_20131217.html

http://www.debian.org/security/2013/dsa-2824

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

http://www.ubuntu.com/usn/USN-2058-1

https://h20564.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c04463322

Details

Source: MITRE

Published: 2013-12-23

Updated: 2016-04-07

Type: CWE-20

Risk Information

CVSS v2.0

Base Score: 4

Vector: AV:N/AC:H/Au:N/C:P/I:P/A:N

Impact Score: 4.9

Exploitability Score: 4.9

Severity: MEDIUM