Vulnerability CVE-2015-3996
Published: 2015-10-27

Description:
The default AFSecurityPolicy.validatesDomainName configuration for AFSSLPinningModeNone in the AFNetworking framework before 2.5.3, as used in the ownCloud iOS Library, disables verification of a server hostname against the domain name in the subject's Common Name (CN) of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Afnetworking project -> Afnetworking 

 References:
https://owncloud.org/security/advisory/?id=oc-sa-2015-012
https://github.com/AFNetworking/AFNetworking/releases/tag/2.5.3
https://github.com/AFNetworking/AFNetworking/issues/2619
http://www.securityfocus.com/bid/76242
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