scada-hmi-sec-assssm

name	scada-hmi-sec-assssm
description	Perform security assessments of SCADA Human-Machine Interface (HMI) systems to identify vulnerabilities in web-based HMIs, thin-client configurations, authentication mechanisms, and communication channels between HMI and PLCs, aligned with IEC 62443 and NIST SP 800-82 guidelines.
domain	cybersecurity
subdomain	ot-ics-security
tags	["ot-security","ics","scada","hmi","security-assessment","vulnerability","iec62443","nist-800-82"]
version	1.0
author	mahipal
license	Apache-2.0
nist_csf	["PR.IR-01","DE.CM-01","ID.AM-05","GV.OC-02"]

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 s7comm-protocol-sec-ana), 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

#!/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 requests: pip install requests")
    sys.exit(1)


class HMISecurityAssessment:
    """Performs security assessment of SCADA HMI systems."""

    def __init__(self, hmi_info: dict):
        self.hmi_info = hmi_info
        .findings = []
        .checks_run = 
        .checks_passed = 

     ():
        
        checks = [
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        ]

        ()
         check  checks:
            .checks_run += 
            ()
            ()
            ()

     ():
        
        checks = [
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        ]

        ()
         check  checks:
            .checks_run += 
            ()
            ()

     ():
        
        hmi_url = .hmi_info.get(, )
          hmi_url:
            ()
            

        checks = [
            {
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            {
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        ()
        ()
         check  checks:
            .checks_run += 
            ()
            ()

     ():
        
        checks = [
            {
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            {
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        ()
         check  checks:
            .checks_run += 
            ()
            ()

     ():
        
        .check_authentication()
        .check_communication_security()
        .check_web_hmi_security()
        .check_hardening()

        ()
        ()
        ()
        ()
        ()
        ()
        ()
        ()
        ()


 __name__ == :
    assessment = HMISecurityAssessment(hmi_info={
        : ,
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    })
    assessment.generate_report()