Vulnerability in Apple Iphone OS

CVE-2015-6997

The X.509 certificate-trust implementation in Apple iOS before 9.1 does not recognize that the kSecRevocationRequirePositiveResponse flag implies a revocation-checking requirement, which makes it easier for man-in-the-middle attackers to spoof endpoints by leveraging access to a revoked certificate.

EPSS: 0.009 (56.1th percentile) — read the EPSS interpretation.

Affected products

Weakness classification (CWE)

References