Analytic 2254

Real-time monitoring identifies an Secure Shell (SSH) connection to an Industrial Control System (ICS) Linux asset from a source Internet Protocol (IP) address that appeared on the ICS network within a short window and is not in the approved device inventory. 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. Pregled

1.1 Sklici

1.2 Ugotovljene zahteve

1.3 Povezani predpisi

2. Ugotovljene zahteve

3. Povezani predpisi

Povezane zadeve

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