Kerberos is vulnerable to replay in which of the following circumstances?
Replay can be accomplished on Kerberos if the compromised tickets are used within an allotted time window.
The security depends on careful implementation:enforcing limited lifetimes for authentication credentials minimizes the threat of of replayed credentials, the KDC must be physically secured, and it should be hardened, not permitting any non-kerberos activities.
Official ISC2 Guide to the CISSP, 2007 Edition, page 184
also see:
KRUTZ, Ronald L. & VINES, Russel D., The CISSP Prep Guide: Mastering the Ten Domains of Computer Security, 2001, John Wiley & Sons, Page 42.
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