Cryptographic issues in Apple MAC OS X

1) Cryptographic issues

EUVDB-ID: #VU41995

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2014-1263

CWE-ID: CWE-310 - Cryptographic Issues

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

macOS: 10.9

CPE2.3

• cpe:2.3:o:apple:macos:10.9:*:*:*:*:*:*:*

External links

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

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.