Download Irfan Ahmed Assistant Professor Department of Computer Science

Irfan Ahmed
Assistant Professor
Department of Computer Science
University of New Orleans
1"
!  An
ICS Testbed at UNO
!  Research
& Pedagogy
!  Assistant
Professor of Computer Science at
the University of New Orleans
!  Research Areas
!  Digital Forensics
!  Industrial Control Systems (ICS)
!  Security via Virtualization
!  Cybersecurity Education
!  cs.uno.edu/~irfan
!  Control
system is a device or set of devices that
regulate the behavior of other devices or systems
Input; Stimulus
Control System
Component
Output; Response
–  Input " typically sensors
–  Output " actuators to control other device
!  A
thermostat is a simple control system that
!  senses the temperature, and
!  turns a heater on or off to maintain the temperature
at a set point
Room
Temperature
Turn
on/off
!  ICS
are typically used to automate industrial
processes
!  e.g., power generation, and water filtering
!  Conveyor
belt – example
!  Programmable Logic Controller (PLC)
!  Proximity Sensor
!  Servo drive
!  SCADA
" Supervisory Control and Data
Acquisition
!  Are highly distributed systems
!  Provides centralized data acquisition,
monitoring, and control in real time
Field Site 1
Field Site 2
Field Site 3
Power
Distribution
Gas Pipeline
Wastewater
Treatment
PLC
PLC
PLC
Modbus
EtherNet/IP
PROFINET
Ethernet
Switch
HMI
Control Center
Historian
!  Cyber
!  Cyber
attacks and Vulnerabilities
attacks on the testbed vs. similar ICS
systems in industry
!  Small scale physical model put limitations
!  does not offer a large set of parameters and variables
from physical process
!  Limited data for network traffic analysis
!  Limited
support
number of PLCs and ICS protocol
! 
! 
Research Prototype Evaluation
Testing on testbed enforces the constraints of a
typical ICS system
! 
! 
! 
! 
! 
24/7 availability requirement of ICS services
Resource-constrained embedded devices
Interaction of cyber and physical worlds
ICS communication protocols
Difficult to add security functionalities in PLCs
!  proprietary firmware/OS
!  Limited tools/techniques to access and modify
firmware/OS code in PLC
!  Useful for Digital Forensic research
!  Tools and techniques to extract and
digital artifacts from
!  HMI and other ICS services
!  PLCs
!  ICS Network traffic
analyze
! 
! 
Demonstration of physical processes
Varied programming software support
!  PLCs of three vendors, each using different
programming software
!  Schneider Electric - SoMachine Basic
!  Allen-Bradley - Studio 5000
!  Siemens - SIMATIC STEP 7
! 
Varied ICS protocol support
!  EtherNet/IP
!  Modbus
!  PROFINET
! 
Topics
!  Introduction to industrial control
! 
! 
! 
! 
! 
systems (ICS)
PLC programming
ICS network protocols
ICS vulnerabilities and cyber attacks
ICS security solutions
Hands-on
!  PLC: Allen-Bradley’s Micrologix 1400 B
!  Program PLC to control Traffic Lights
!  Implement man-in the middle attack
!  PLC Vendors
!  GE, Mitsubishi, Allen Bradley, Omron, WAGO,
Siemens, Automation Direct, and Schneider
!  PLCs
!  Micro820, ControlLogix, 1214 TIA, CJ1M, and
Fanuc 90/30
!  Protocols
!  CC Link, PROFINET, DNP3, Modbus, EtherNet/IP,
PCCC, BAC, FL-Net, MC, FINS, and CJ2,
!  No
!  No
!  No
fieldbus I/O support
connectivity with the cloud
IoT appliances in the testbed
!  So called industrial internet of things
Contact&me&"&&
Irfan&Ahmed&
irfan@cs.uno.edu"
"504"3"280"3"4409"