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In our journey to build a robust OT SIEM (Security Information and Event Management) system, the next step after enumeration is service vulnerabilities scanning. Attackers look for weak spots, and you need to find them first.
In this article, we will scan OpenPLC’s HTTP server using Labshock v1.5, covering:
– Identifying open ports with Nmap
– Running service detection and vulnerability scans
– Checking for misconfigurations with Nikto
– Brute-force testing with Hydra
– Monitoring network traffic with Network Swiftness
– Analyzing logs with Tidal Collector
You Should Know:
1. Nmap Scanning
First, identify open ports and services:
nmap -sV -A -T4 <target_IP>
For deeper vulnerability detection:
nmap --script vuln <target_IP>
2. Nikto for Web Server Misconfigurations
Scan the HTTP server for common vulnerabilities:
nikto -h http://<target_IP>
3. Hydra for Brute-Force Testing
Test weak credentials on services like FTP, SSH, or HTTP:
hydra -L users.txt -P passwords.txt <target_IP> http-post-form "/login.php:user=^USER^&pass=^PASS^:Invalid" -V
4. Network Traffic Monitoring with Network Swiftness
Capture and analyze traffic:
tshark -i eth0 -w ot_traffic.pcap
5. Log Analysis with Tidal Collector
Aggregate and analyze logs for anomalies:
tidal-collector --logs /var/log/ --output analysis_report.json
What Undercode Say
Service vulnerability scanning is a critical phase in penetration testing and defensive security. Using tools like Nmap, Nikto, and Hydra helps uncover weaknesses before attackers exploit them. Always ensure proper authorization before scanning, and integrate findings into your SIEM for continuous monitoring.
For further reading, check the full guide:
Expected Output:
A structured report of vulnerabilities, misconfigurations, and recommended fixes for hardening the OT environment.
References:
Reported By: Zakharb Otsiem – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
