LabShock: A Free OT Testbed Revolutionizing ICS/OT Cybersecurity Training

By /

Listen to this Post

Featured Image

Introduction

The Industrial Control Systems (ICS) and Operational Technology (OT) cybersecurity landscape is rapidly evolving, demanding hands-on training environments that simulate real-world threats. LabShock, an open-source OT testbed developed by Zakhar Bernhardt, fills this gap by providing a no-hardware-required platform for security professionals to practice attack and defense techniques in a controlled setting.

Learning Objectives

  • Understand the purpose and capabilities of LabShock in OT cybersecurity training.
  • Learn how to set up and navigate LabShock for hands-on ICS/OT security exercises.
  • Explore real-world applications of LabShock, including SIEM integration and future Capture-the-Flag (CTF) events.

You Should Know

1. Accessing LabShock for the First Time

Command/Step:

git clone https://github.com/labshock/labshock.git 
cd labshock 
docker-compose up -d

What This Does:

This command clones the LabShock repository and deploys the lab environment using Docker. The testbed includes pre-configured ICS/OT components for security testing.

How to Use It:

1. Ensure Docker and Docker Compose are installed.

2. Run the commands to launch the lab.

  1. Access the web interface via `http://localhost:8080` (or configured port).

    2. Simulating an OT Network Attack

    Command/Step:

    python3 exploit_plc.py --target 192.168.1.100 --payload "malicious_modbus_frame"

    What This Does:

    This script simulates a Modbus-based attack on a Programmable Logic Controller (PLC) within LabShock, demonstrating how attackers exploit insecure OT protocols.

    How to Use It:

    1. Identify the target PLC IP within LabShock.

    2. Run the exploit script to observe attack behavior.
    3. Use Wireshark (`tcpdump -i eth0 -w ot_traffic.pcap`) to capture and analyze malicious traffic.

3. Configuring an OT SIEM for Threat Detection

Command/Step:

sudo apt install elk-stack 
./ot_siem_config.sh --labshock-ip 192.168.1.0/24

What This Does:

This sets up an ELK (Elasticsearch, Logstash, Kibana) stack to monitor LabShock’s network traffic, enabling log analysis and anomaly detection.

How to Use It:

  1. Deploy the ELK stack in a VM or container.
  2. Configure Logstash to ingest Modbus/TCP logs from LabShock.

3. Create Kibana dashboards to visualize attack patterns.

4. Hardening an OT Firewall in LabShock

Command/Step:

iptables -A INPUT -p tcp --dport 502 -j DROP 
iptables -A INPUT -p udp --dport 44818 -j DROP

What This Does:

These iptables rules block unauthorized Modbus (TCP/502) and EtherNet/IP (UDP/44818) traffic, reducing attack surfaces in OT networks.

How to Use It:

1. SSH into the LabShock firewall VM.

  1. Apply rules to restrict unnecessary OT protocol access.
  2. Test connectivity with `nmap -p 502,44818 192.168.1.100` to verify blocking.

5. Conducting a Vulnerability Scan in LabShock

Command/Step:

nmap -sV --script=vulners 192.168.1.0/24

What This Does:

This Nmap command scans the LabShock network for known vulnerabilities using the Vulners script.

How to Use It:

  1. Install Nmap and the Vulners script (nmap --script-updatedb).

2. Run the scan against LabShock’s subnet.

  1. Review results for exploitable services (e.g., outdated PLC firmware).

What Undercode Say

  • Key Takeaway 1: LabShock lowers the barrier to entry for OT security training by eliminating hardware dependencies.
  • Key Takeaway 2: Future integrations (DMZ, cloud environments) will expand its use cases for advanced red/blue team exercises.

Analysis:

LabShock represents a paradigm shift in ICS/OT cybersecurity education. Unlike proprietary solutions, its open-source nature allows continuous community-driven improvements. The planned CTF events will further enhance practical skills, bridging the gap between theoretical knowledge and real-world incident response. As OT threats grow, tools like LabShock will be critical in preparing defenders.

Prediction

Within two years, LabShock could become the de facto standard for OT security training, integrated into certification programs like GIAC GICSP and Offensive Security ICS. Its adoption by enterprises and academia will accelerate workforce readiness against critical infrastructure threats.

IT/Security Reporter URL:

Reported By: Alhasawi Labshock – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

Join Our Cyber World:

💬 Whatsapp | 💬 Telegram

Related Posts: