This is not your traditional SCADA/ICS/IIoT security course! How many courses send you home with a $500 kit including your own PLC and a set of hardware/RF hacking tools?!? This course teaches hands-on penetration testing techniques used to test individual components of a control system, including embedded electronic field devices, network protocols, RF communications, Human Machine Interfaces (HMIs), and various forms of master servers and their ICS applications. Skills you will learn in this course will apply directly to systems such as the Smart Grid, PLCs, RTUs, smart meters, building management, manufacturing, Home Area Networks (HAN), smart appliances, SCADA, substation automation, synchrophasors, and even IoT. This course is structured around the formal penetration testing methodology created by UtiliSec for the United States Department of Energy. Using this methodology and Control Things Pentest Platform (previously SamuraiSTFU), an open source Linux distribution for pentesting energy sector systems and other critical infrastructure, we will perform hands-on penetration testing tasks on user interfaces (on master servers and field device maintenance interfaces), control system protocols (modbus, DNP3, IEC 60870-5-104), RF communications (433MHz, 869MHz, 915MHz), and embedded circuit attacks (memory dumping, bus snooping, JTAG, and firmware analysis). We will tie these techniques and exercises back to control system devices that can be tested using these techniques. The course exercises will be performed on a mixture of real world and simulated devices to give students the most realistic experience as possible in a portable classroom setting. Advances in modern control systems such as the energy sector’s Smart Grid has brought great benefits for asset owners/operators and customers alike, however these benefits have often come at a cost from a security perspective. With increased functionality and addition inter-system communication, modern control systems bring a greater risk of compromise that vendors, asset owners/operators, and society in general must accept to realize the desired benefits. To minimize this risk, penetration testing in conjunction with other security assessment types must be performed to minimize vulnerabilities before attackers can exploit critical infrastructures that exist in all countries around the world. Ultimately, this is the goal of this course, to help you know how, when, and where this can be done safely in your control systems.
Syllabus
Day 1 Outline – Assessing and Exploiting Controllers
Understanding basic control system concepts, systems, and devices
- Control system architectures
- PLCs, RTUs, and IEDs
- Understanding RTOS
- Industrial and non-Industrial
- What is IIoT and how it differs from IoT
- Field devices, buses, and loops
- DCS vs SCADA
Understanding controller logic
- Velocio PLCs vs other PLCs
- Hands-on exercise creating controller logic
- Hands-on exercise programming a PLC
- Hands-on exercise creating an HMI
Architecture Reviews of major ICS and smart grid systems
- Supervisory control and data acquisition (SCADA)
- Distribution Grid Management (DGM) and Substation Automation (SA)
- Wide Area Management, Protection, and Control (WAMPAC)
- Demand Response (DR)
- Distributed Energy Resources (DER)
- Advanced Metering Infrastructure (AMI)
- Electric Vehicles (EV)
Introduction to Control Things Platform
- Setting up the virtual machine
- Walk through the tools and functionality
- Introduction to the student hardware kits
Introduction to the NESCOR methodology for penetration testing
- Preparing for a penetration test
- Architecture reviews
- Testing the master servers
- Testing the user interfaces
- Testing the network communications
- Testing the embedded field devices
- End-to-end assessment
- Reporting
Types of ICS user interfaces
- Traditional applications
- Web applications
- Terminal interfaces
Pentesting maintenance interfaces on ICS field and floor devices
- Functional analysis of field technician interfaces
- Hands-on exercise capturing USB communications to tech interfaces
- Hands-on exercise analyzing captured USB communications
- Impersonating endpoints in field tech interface communications
- Hands-on exercises impersonating vendor endpoints with Python
- Exploiting vulnerabilities found during analysis
Day 2 Outline – Assessing and Exploiting ICS Communication Protocols
Performing traditional network pentests on control systems
- Overview of a traditional network penetration test methodology
- Dangers of port and vulnerability scanning
- Strategies to perform port and vulnerability scanning
Pentesting Different Communication Layers
- Testing of communication mediums vs communication protocols
- Where security defenses should be place …… and tested
Serial communications
- RS-232, TIA-422, and TIA-485
- Fieldbus Protocols and Protocol Families
- Hands-on sniffing and injection of serial Modbus RTU
Pentesting TCP/IP based ICS protocols
- Protocol capture and analysis
- ModbusTCP, ProfiNet, EnternetIP/CIP, DNP3, IEC 104, IEC 61850, ICCP
- Dealing with unknown protocols
- Hands-on entropy analysis of network payloads
- Reverse engineering unknown protocols
- Hands-on ICS protocol fuzzing
Day 3 Outline – Assessing and Exploiting ICS RF Communications
Pentesting RF communications between master servers and field devices
- Examples of where RF is used in ICS and IIoT
- Overview of the RF Pentesting methodology
Capturing RF Signals
- Hardware used for different RF protocols
- SDR vs rfcat
- Comparison of different SDR hardware
- Finding the right frequencies
- Using the right antenna
- Hands-on RF spectrum analysis
- Hands-on RF signal capture
Analyzing the captured signal
- Spread Spectrum types and strategies
- Strategies for recovering frequency hopping
- Modulation and Demodulation
- Methods for identifying modulation type
- Hands-on traffic demodulation with Universal Radio Hacker (URH)
- Hands-on signal demodulation with GNU Radio
Data Extraction
- Understanding how data streams are assembled
- Hands-on analysis of data streams with URH
- Hands-on packetization with URH
RF Transmission
- Traffic transmission and exploitation
- Hardware needed for transmission
- Replaying attacks
- Signal transmission with URH
- Hands-on signal generation with rfcat and Great Scott Gadgets’ Yardstick
Day 4 Outline – Assessing and Exploiting ICS Embedded Electronics
- Overview of pentesting embedded device circuits
- Local attack through physically exposed devices
- Expanding physical attacks to remote attacks
- Cryptographic keys and firmware
Analysis of embedded electronics in ICS field and floor devices
- Discussion of device disassembly
- Component analysis on embedded circuits
- Datasheet acquisition and analysis for target components
Dumping data at rest on embedded circuits
- Using the Bus Pirate and other similar tools
- Overview of I2C or two-wire serial protocol
- Hands-on exercise dumping I2C EEPROMs
Overview of SPI serial protocol
- Hands-on exercise dumping SPI EEPROMs
- Overview of JTAG
- Hands-on exercise interfacing with debug interfaces
- Bus Snooping on embedded circuits
Overview of bus snooping
- Hands-on exercise snooping busses
- Analyzing data obtained from data dumping and bus snooping
- Hands-on exercise doing string analysis of datasets
- Hands-on exercise doing entropy analysis of datasets
- Hands-on exercise doing systematic key searches through datasets
- Hands-on exercise doing file carving from datasets
Analyzing field and floor device firmware
- Obtaining field and floor device firmware
- Hands-on exercise disassembling firmware
- Hands-on exercise analyzing disassembled firmware
- Exploiting firmware flaws
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