CVE-2014-1266

moderate-risk

Published 2014-02-22

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.

Do I need to act?

17.9% chance of exploitation in next 30 days

EPSS score — higher than 82% of all CVEs

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.4/10 High

NETWORK / HIGH complexity

Affected Products (3)

Iphone Os

Mac Os X

Tvos

Affected Vendors

Apple

References (18)

Issue Tracking http://it.slashdot.org/comments.pl?sid=4821073&cid=46310187

Vendor Advisory http://support.apple.com/kb/HT6146

Vendor Advisory http://support.apple.com/kb/HT6147

Vendor Advisory http://support.apple.com/kb/HT6148

Vendor Advisory http://support.apple.com/kb/HT6150

Exploit https://news.ycombinator.com/item?id=7281378

Exploit https://www.cs.columbia.edu/~smb/blog/2014-02/2014-02-23.html

Exploit https://www.cs.columbia.edu/~smb/blog/2014-02/2014-02-24.html

Exploit https://www.imperialviolet.org/2014/02/22/applebug.html