Vulnerability in Apple Iphone OS

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 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.

Vulnerability class: Improper Certificate Validation

EPSS: 0.057 (92.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2014-1266?
CVE-2014-1266 is a high-severity vulnerability in Apple Iphone OS, classified under Improper Certificate Validation. CVSS score: 7.4/10. Published 2014-02-22.
How severe is CVE-2014-1266?
High severity. CVSS v3 base score is 7.4 out of 10.
Is CVE-2014-1266 known to be exploited?
17 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.