X.509 Certificate-Trust Implementation Vulnerability in Apple iOS

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.

Learn more about our Cis Benchmark Audit For Apple Ios.