Vulnerability CVE-2014-1266
Published: 2014-02-22

Description:
The SSLVerifySignedServerKeyExchange function in libsecurity_ssl/lib/sslKeyExchange.c in the Secure Transport feature in the Data Security component in Apple iOS 6.x before 6.1.6 and 7.x before 7.0.6, Apple TV 6.x before 6.0.2, and Apple OS X 10.9.x before 10.9.2 does not check the signature in a TLS Server Key Exchange message, which allows man-in-the-middle attackers to spoof SSL servers by (1) using an arbitrary private key for the signing step or (2) omitting the signing step.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
iOS/MacOSX/AppleTV man-in-the-middle attack
imperialviolet
23.02.2014

Type:

CWE-20

 (Improper Input Validation)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
5.8/10
4.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
None
Affected software
Apple -> Apple tv 
Apple -> Iphone os 
Apple -> Mac os x 
Apple -> TVOS 

 References:
http://it.slashdot.org/comments.pl?sid=4821073&cid=46310187
http://support.apple.com/kb/HT6146
http://support.apple.com/kb/HT6147
http://support.apple.com/kb/HT6148
http://support.apple.com/kb/HT6150
https://news.ycombinator.com/item?id=7281378
https://www.cs.columbia.edu/~smb/blog/2014-02/2014-02-23.html
https://www.cs.columbia.edu/~smb/blog/2014-02/2014-02-24.html
https://www.imperialviolet.org/2014/02/22/applebug.html
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