Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | Iphone Os | <= 9.0.2 |
| Apple | Watchos | <= 2.0 |
Related Weaknesses (CWE)
References
- http://lists.apple.com/archives/security-announce/2015/Dec/msg00002.htmlVendor Advisory
- http://lists.apple.com/archives/security-announce/2015/Oct/msg00002.htmlVendor Advisory
- http://www.securityfocus.com/bid/77268
- http://www.securitytracker.com/id/1033929
- https://support.apple.com/HT205370Vendor Advisory
- https://support.apple.com/HT205641Vendor Advisory
- http://lists.apple.com/archives/security-announce/2015/Dec/msg00002.htmlVendor Advisory
- http://lists.apple.com/archives/security-announce/2015/Oct/msg00002.htmlVendor Advisory
- http://www.securityfocus.com/bid/77268
- http://www.securitytracker.com/id/1033929
- https://support.apple.com/HT205370Vendor Advisory
- https://support.apple.com/HT205641Vendor Advisory
FAQ
What is CVE-2015-6997?
CVE-2015-6997 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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 easi...
How severe is CVE-2015-6997?
CVE-2015-6997 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-2015-6997?
Check the references section above for vendor advisories and patch information. Affected products include: Apple Iphone Os, Apple Watchos.