Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | Mac Os X | <= 10.10.5 |
Related Weaknesses (CWE)
References
- http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.htmlVendor Advisory
- http://www.securityfocus.com/bid/76908
- http://www.securitytracker.com/id/1033703
- https://support.apple.com/HT205267Vendor Advisory
- http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.htmlVendor Advisory
- http://www.securityfocus.com/bid/76908
- http://www.securitytracker.com/id/1033703
- https://support.apple.com/HT205267Vendor Advisory
FAQ
What is CVE-2015-5894?
CVE-2015-5894 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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 e...
How severe is CVE-2015-5894?
CVE-2015-5894 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2015-5894?
Check the references section above for vendor advisories and patch information. Affected products include: Apple Mac Os X.