KDC Assertion Failure in MIT Kerberos 5 by Attacks on S4U Requests

CVE-2017-11368

What is CVE-2017-11368?

In MIT Kerberos 5 versions 1.7 and later, a vulnerability has been identified where an authenticated attacker can trigger a KDC assertion failure. This occurs through the submission of invalid S4U2Self or S4U2Proxy requests, leading to potential disruptions in the Kerberos authentication process. It is crucial for system administrators and security professionals to be aware of this vulnerability to mitigate risks and protect their environments.

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