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.
2014-02-27T01:55:04.070
2025-04-12T10:46:40.837
Deferred
CVSSv2: 4.3 (MEDIUM)
AV:N/AC:M/Au:N/C:P/I:N/A:N
8.6
2.9
Type | Vendor | Product | Version/Range | Vulnerable? |
---|---|---|---|---|
Operating System | apple | mac_os_x | ≤ 10.9.1 | Yes |
Operating System | apple | mac_os_x | 10.9 | Yes |