CWE
254
Advisory Published
Updated

CVE-2015-6997

First published: Fri Oct 23 2015(Updated: )

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.

Credit: product-security@apple.com

Affected SoftwareAffected VersionHow to fix
iStyle @cosme iPhone OS<=9.0.2
Apple iOS, iPadOS, and watchOS<=2.0

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Frequently Asked Questions

  • What is the severity of CVE-2015-6997?

    CVE-2015-6997 has a medium severity rating due to its potential for man-in-the-middle attacks.

  • How do I fix CVE-2015-6997?

    To fix CVE-2015-6997, update affected devices to iOS version 9.1 or later.

  • Which versions of Apple iOS are affected by CVE-2015-6997?

    CVE-2015-6997 affects Apple iOS versions prior to 9.1.

  • What type of attack is possible due to CVE-2015-6997?

    CVE-2015-6997 makes devices vulnerable to man-in-the-middle attacks leveraging revoked certificates.

  • Is Apple watchOS also affected by CVE-2015-6997?

    Yes, watchOS versions prior to 2.1 are also affected by CVE-2015-6997.

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