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IT and OT handle QA and Pentesting differently.
Look at when these tests happen in real life:
IT
🟢 Development: unit tests and security checks are here
🟢 Testing: full QA & Pentesting before deployment
🟡 Staging: maybe, depends on risk and environment
🔴 Production: rare, only controlled tests
OT
🔴 Development: no testing, just system design
🔴 FAT/SAT: rare, vendors usually limit security testing
🟡 Commissioning: maybe, but high risk and limited scope
🟢 Production: yes & good luck
Live ICS systems make testing risky.
Why is OT different?
IT has testing & staging, where full testing is possible. OT systems often go straight from SAT to production. Security testing in OT is either done too late or skipped completely.
✅ Best approach?
> Push for FAT/SAT security testing before deployment
> Test in commissioning
> But not in production ⛔️
Yes, you can in prod, but do it early, please!
How do you handle security testing in OT?
And have a good day or evening or night 😎
Practice Verified Codes and Commands
1. Nmap for Network Scanning (IT/OT)
nmap -sV -O 192.168.1.1
Use Nmap to scan for open ports and services in IT/OT environments.
2. Metasploit for Penetration Testing (IT)
msfconsole use exploit/windows/smb/ms17_010_eternalblue set RHOSTS 192.168.1.10 exploit
Test for vulnerabilities like EternalBlue in IT systems.
3. Wireshark for Packet Analysis (OT)
wireshark
Capture and analyze network traffic in OT environments to detect anomalies.
4. Modbus TCP Testing (OT)
python3 -m pip install pymodbus python3 modbus_scan.py --host 192.168.1.100
Use Python scripts to test Modbus TCP communication in OT systems.
5. Linux Firewall Configuration (IT/OT)
sudo ufw enable sudo ufw allow 22/tcp sudo ufw status
Secure IT/OT systems by configuring firewalls.
6. Windows PowerShell for Security Auditing (IT)
Get-WindowsFeature | Where-Object {$_.Installed -eq $true}
Audit installed Windows features for potential vulnerabilities.
What Undercode Say
Cybersecurity in IT and OT environments requires a tailored approach due to their inherent differences. IT systems benefit from structured development and testing phases, allowing for comprehensive QA and pentesting. However, OT systems often lack these stages, making security testing riskier and more challenging.
To mitigate risks, it is crucial to push for security testing during the FAT/SAT and commissioning phases in OT environments. Tools like Nmap, Metasploit, and Wireshark are invaluable for identifying vulnerabilities and monitoring network traffic. Additionally, scripting with Python for OT protocols like Modbus TCP can enhance security testing capabilities.
For IT systems, leveraging Linux commands like `ufw` for firewall management and Windows PowerShell for auditing ensures robust security configurations. Always prioritize early testing in production environments to minimize risks.
Remember, cybersecurity is not a one-size-fits-all solution. Adapt your strategies to the unique challenges of IT and OT systems, and continuously update your knowledge and tools to stay ahead of emerging threats.
For further reading, check out these resources:
References:
Hackers Feeds, Undercode AI
