performing-scada-hmi-security-assessment

# Performing SCADA HMI Security Assessment ## When to Use - When assessing the security posture of HMI systems in SCADA/DCS environments - When evaluating web-based HMI interfaces for common web vulnerabilities - When auditing HMI authentication, authorization, and session management - When testing communication security between HMIs and PLCs/RTUs - When preparing for IEC 62443 or NERC CIP compliance assessments **Do not use** for testing HMIs in active production without a maintenance window and rollback plan, for PLC-level protocol analysis (see performing-s7comm-protocol-security-analysis), or for general web application testing on non-OT systems. ## Prerequisites - HMI system inventory with vendor, version, and network configuration details - Lab or test environment mirroring production HMI setup (preferred for active testing) - Authorization from plant operations for testing during maintenance windows - NIST SP 800-82 and IEC 62443 security requirements documentation - Network capture capability on HMI-to-PLC communication segment ## Workflow ### Step 1: Assess HMI Attack Surface ```python #!/usr/bin/env python3 """SCADA HMI Security Assessment Tool. Evaluates HMI security across authentication, communication, configuration, and web interface categories aligned with IEC 62443 and NIST SP 800-82 requirements. """ import json import sys from datetime import datetime from typing import Dict, List try: import requests except ImportError: print("Install req...