CVE-2014-1263

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2014-02-27 · updated 2026-06-17
Weakness: CWE-310

Description

curl and libcurl 7.27.0 through 7.35.0, when using the SecureTransport/Darwinssl backend, as used in in Apple OS X 10.9.x before 10.9.2, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate when accessing a URL that uses a numerical IP address, which allows man-in-the-middle attackers to spoof servers via an arbitrary valid certificate.

Affected products

macOS: through 10.9.1; 10.9

References

http://curl.haxx.se/docs/adv_20140326C.html
http://secunia.com/advisories/57836
http://secunia.com/advisories/57966
http://secunia.com/advisories/57968
http://support.apple.com/kb/HT6150
http://twitter.com/agl__/statuses/437029812046422016
http://twitter.com/okoeroo/statuses/437272014043496449
http://www.getchef.com/blog/2014/04/09/chef-server-11-0-12-release/
http://www.getchef.com/blog/2014/04/09/enterprise-chef-1-4-9-release/
http://www.getchef.com/blog/2014/04/09/enterprise-chef-11-1-3-release/
https://gist.github.com/rmoriz/fb2b0a6a0ce10550ab73
http://curl.haxx.se/docs/adv_20140326C.html

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