IA-2(9)—Identification And Authentication (Organizational Users)

PBMM (P2)

Secret (P2)

Technical

>Control Description

IDENTIFICATION AND AUTHENTICATION | NETWORK ACCESS TO NON-PRIVILEGED ACCOUNTS - REPLAY RESISTANT The information system implements replay-resistant authentication mechanisms for network access to non-privileged accounts.

>Supplemental Guidance

Authentication processes resist replay attacks if it is impractical to achieve successful authentications by recording/replaying previous authentication messages. Replay-resistant techniques include, for example, protocols that use nonces or challenges such as Transport Layer Security (TLS) and time synchronous or challenge-response one-time authenticators.

>Tailoring Guidance

This security control/enhancement can be met using readily available Commercial-Off-The-Shelf (COTS) components. Consequently, inclusion in a departmental profile is strongly encouraged in most cases.

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