Analytic 2257

Real-time monitoring identifies an SSH authentication/session to an ICS Linux asset from a VPN-assigned or remote-access source outside the approved remote-administration baseline. OT operational-fidelity gate: Alert only when the account/device/session violates the approved identity + source host/jump path/zone policy and is corroborated by access to a protected OT asset, execution, configuration change, or another security-relevant follow-on event. Suppress approved shift activity, vendor support, break-glass use, commissioning, and documented remote-access windows.

1. Visão geral

1.1 Referências

1.2 Requisitos identificados

1.3 Regulamentos relacionados

2. Requisitos identificados

3. Regulamentos relacionados

Pedidos ligados

• MITREATTACK -

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