CVE-2014-1266
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.71%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.4 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 5.71% probability · 93th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-295
- Affected
- apple/iphone os · apple/mac os x · apple/tvos
- Source
- product-security@apple.com
References
- http://it.slashdot.org/comments.pl?sid=4821073&cid=46310187Issue Tracking
- http://support.apple.com/kb/HT6146Vendor Advisory
- http://support.apple.com/kb/HT6147Vendor Advisory
- http://support.apple.com/kb/HT6148Vendor Advisory
- http://support.apple.com/kb/HT6150Vendor Advisory
- https://news.ycombinator.com/item?id=7281378Exploit, Issue Tracking
- https://www.cs.columbia.edu/~smb/blog/2014-02/2014-02-23.htmlExploit
- https://www.cs.columbia.edu/~smb/blog/2014-02/2014-02-24.htmlExploit
- https://www.imperialviolet.org/2014/02/22/applebug.htmlExploit
- http://it.slashdot.org/comments.pl?sid=4821073&cid=46310187Issue Tracking
- http://support.apple.com/kb/HT6146Vendor Advisory
- http://support.apple.com/kb/HT6147Vendor Advisory
- http://support.apple.com/kb/HT6148Vendor Advisory
- http://support.apple.com/kb/HT6150Vendor Advisory
- https://news.ycombinator.com/item?id=7281378Exploit, Issue Tracking
- https://www.cs.columbia.edu/~smb/blog/2014-02/2014-02-23.htmlExploit
- https://www.cs.columbia.edu/~smb/blog/2014-02/2014-02-24.htmlExploit
- https://www.imperialviolet.org/2014/02/22/applebug.htmlExploit
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.