First published: Fri Oct 09 2015(Updated: )
The X.509 certificate-trust implementation in Apple OS X before 10.11 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.
Credit: product-security@apple.com
Affected Software | Affected Version | How to fix |
---|---|---|
Apple iOS and macOS | <=10.10.5 |
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CVE-2015-5894 is considered a high severity vulnerability due to its potential to allow man-in-the-middle attacks.
To fix CVE-2015-5894, update your Apple OS X to version 10.11 or later where the vulnerability is addressed.
CVE-2015-5894 facilitates man-in-the-middle attacks by allowing attackers to spoof endpoints using revoked certificates.
CVE-2015-5894 affects macOS versions prior to 10.11, specifically up to and including 10.10.5.
CVE-2015-5894 impacts the revocation-checking mechanism in the X.509 certificate-trust implementation.