Analytic 2179

Real-time monitoring identifies transfer protocol traffic such as the Trivial File Transfer Protocol (TFTP) or vendor-specific protocol traffic initiating firmware-update mode on Industrial Control System (ICS) device Internet Protocol (IP) addresses from sources not in the approved engineering workstation list. OT operational-fidelity gate: Alert only when the action is not attributable to an authorized operator/engineering source for the specific target and function, and it is either outside an approved change/maintenance window or lacks matching change-control context; where telemetry permits, require corroborating device, configuration, or process-state effect. Suppress activity that fully matches approved maintenance, commissioning, failover, recovery, or tested control procedures.

1. Vue d’ensemble

1.1 Références

1.2 Exigences identifiées

1.3 Réglementations associées

2. Exigences identifiées

3. Réglementations associées

Tickets liés

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