BIE-UKB Lecture 12 Notes: Critical infrastructure, industrial control systems

Terms

• Operational technology (OT) - environments containing industrial control systems (ICS)

SCADA

• Supervisory control and data acquisition - control system architecture
• MTU: Master Terminal Unit, SCADA server
• RTU: Remote Terminal Unit
  • PLC: Programmable Logic Controller
• L0 - sensors/actuators
• L1 - PLC/RTU
• L2 - HMI/MTU; Control System
• L3 - monitoring/Production; Supervisory Network
• DMZ between L3 and L4

• L4 - scheduling; Business Network

• Identification of Critical Assets

• Is a part of Attack Surface?

• Cyber Kill Chain in ICS environment
  • Espionage -> developing practices with predictable results

Protocol Examples

• ModBUS
• MBUS (Meter-Bus)
• ICCP (Inter-Control Center Communications Protocol)
• Distributed Network Protocol 3 (DNP3)