Cisco ISE Integration

#!/bin/bash
# Update ISE endpoint attributes with TYCHON Quantum Readiness results

ISE_HOST="${ISE_HOSTNAME}"
ISE_USER="${ISE_ERS_USERNAME}" 
ISE_PASS="${ISE_ERS_PASSWORD}"
ENDPOINT_MAC="$1"
SCAN_RESULTS_FILE="$2"

# Parse TYCHON Quantum Readiness JSON results
CERT_COUNT=$(jq -r '.certificate_summary.total // 0' "$SCAN_RESULTS_FILE")
EXPIRED_COUNT=$(jq -r '.certificate_summary.expired // 0' "$SCAN_RESULTS_FILE")
PQC_VULNERABLE=$(jq -r '.pqc_vulnerable // false' "$SCAN_RESULTS_FILE")
WEAK_ALGOS=$(jq -r '.weak_algorithms[]? // empty' "$SCAN_RESULTS_FILE" | tr '\n' ',')

# Calculate risk score
RISK_SCORE=$((EXPIRED_COUNT * 20 + (PQC_VULNERABLE == "true" ? 30 : 0)))

# Update ISE endpoint via ERS API
curl -X PUT \
  "https://${ISE_HOST}:9060/ers/config/endpoint/name/${ENDPOINT_MAC}" \
  -H "Accept: application/json" \
  -H "Content-Type: application/json" \
  -u "${ISE_USER}:${ISE_PASS}" \
  --insecure \
  -d "{
    \"ERSEndPoint\": {
      \"customAttributes\": {
        \"customAttributes\": {
          \"CryptoScanStatus\": \"Completed\",
          \"CertificateCount\": \"${CERT_COUNT}\",
          \"ExpiredCertificates\": \"${EXPIRED_COUNT}\",
          \"PQCVulnerable\": \"${PQC_VULNERABLE}\",
          \"WeakCrypto\": \"${WEAK_ALGOS%,}\",
          \"LastCryptoScan\": \"$(date -u +%Y-%m-%dT%H:%M:%SZ)\",
          \"CryptoRiskScore\": \"${RISK_SCORE}\"
        }
      }
    }
  }"

# High-Risk Crypto Profile
Profile Name: High-Risk-Crypto-Device
Rules:
  - CryptoRiskScore GREATER_THAN 70
  - OR (PQCVulnerable EQUALS true AND ExpiredCertificates GREATER_THAN 2)
Actions:
  - Assign Profile: High-Risk-Crypto-Device
  - Set Category: Security Risk

# Legacy Crypto Profile  
Profile Name: Legacy-Crypto-Device
Rules:
  - WeakCrypto CONTAINS "MD5"
  - OR WeakCrypto CONTAINS "SHA1" 
  - OR WeakCrypto CONTAINS "RC4"
Actions:
  - Assign Profile: Legacy-Crypto-Device
  - Set Category: Legacy System

# PQC Vulnerable Profile
Profile Name: PQC-Vulnerable-Device
Rules:
  - PQCVulnerable EQUALS true
Actions:
  - Assign Profile: PQC-Vulnerable-Device  
  - Set Category: Quantum Risk

#!/usr/bin/env python3
import json
import requests
from datetime import datetime

class ISEPolicyResponse:
    def __init__(self, ise_host, username, password):
        self.ise_host = ise_host
        self.auth = (username, password)
        self.base_url = f"https://{ise_host}:9060/ers/config"
    
    def process_scan_results(self, scan_results_path, endpoint_mac):
        """Process TYCHON Quantum Readiness results and update ISE policies"""
        with open(scan_results_path, 'r') as f:
            results = json.load(f)
        
        # Calculate risk metrics
        risk_score = self.calculate_risk_score(results)
        
        # Update endpoint attributes
        self.update_endpoint_attributes(endpoint_mac, results, risk_score)
        
        # Apply appropriate policy action
        if risk_score >= 70:
            self.quarantine_device(endpoint_mac, "High crypto risk")
        elif risk_score >= 40:
            self.limit_device_access(endpoint_mac, "Moderate crypto risk")
        else:
            self.grant_full_access(endpoint_mac, "Crypto compliant")
    
    def calculate_risk_score(self, results):
        """Calculate crypto risk score (0-100)"""
        score = 0
        
        # Expired certificates
        expired = results.get('certificate_summary', {}).get('expired', 0)
        score += min(expired * 15, 45)  # Max 45 points for expired certs
        
        # PQC vulnerability
        if results.get('pqc_vulnerable', False):
            score += 30
        
        # Weak algorithms
        weak_algos = len(results.get('weak_algorithms', []))
        score += min(weak_algos * 5, 25)  # Max 25 points for weak algos
        
        return min(score, 100)
    
    def quarantine_device(self, mac_address, reason):
        """Send CoA to quarantine high-risk device"""
        coa_payload = {
            "CoARequest": {
                "userName": mac_address,
                "macAddress": mac_address,
                "nasIPAddress": "ALL",
                "disconnectType": "Reauthorize"
            }
        }
        
        response = requests.post(
            f"{self.base_url}/coa/disconnect",
            json=coa_payload,
            auth=self.auth,
            verify=False
        )
        
        print(f"Quarantined {mac_address}: {reason} (Response: {response.status_code})")

# ISE Logging Configuration for Crypto Events

# Remote Logging Target
Syslog Target: splunk.company.com:514
Protocol: UDP
Facility: LOG_LOCAL3
Severity: INFO

# Log Message Template
Template: ISE_CRYPTO_AUTH
Format: %timestamp% ISE=%hostname% Event=Authentication Result=%result% 
        User=%username% MAC=%calling-station-id% IP=%framed-ip-address%
        Profile=%endpoint-profile% CryptoRisk=%CryptoRiskScore% 
        PQCVuln=%PQCVulnerable% ExpiredCerts=%ExpiredCertificates%
        
# Logging Categories
- Authentication Success/Failure
- Authorization Policy Matched  
- CoA/Disconnect Events
- Custom Attribute Updates
- Profiling Changes

apiVersion: apps/v1
kind: Deployment
metadata:
  name: certscanner-ise-integration
  namespace: security-tools
spec:
  replicas: 2
  selector:
    matchLabels:
      app: certscanner-ise
  template:
    metadata:
      labels:
        app: certscanner-ise
    spec:
      containers:
      - name: certscanner-ise
        image: your-registry/certscanner-ise:latest
        env:
        - name: ISE_HOSTNAME
          valueFrom:
            secretKeyRef:
              name: ise-credentials
              key: hostname
        - name: ISE_ERS_USERNAME
          valueFrom:
            secretKeyRef:
              name: ise-credentials
              key: username
        - name: ISE_ERS_PASSWORD
          valueFrom:
            secretKeyRef:
              name: ise-credentials
              key: password
        - name: AWS_ACCESS_KEY_ID
          valueFrom:
            secretKeyRef:
              name: aws-credentials
              key: access-key
        - name: AWS_SECRET_ACCESS_KEY
          valueFrom:
            secretKeyRef:
              name: aws-credentials
              key: secret-key
        resources:
          requests:
            memory: "256Mi"
            cpu: "250m"
          limits:
            memory: "512Mi"
            cpu: "500m"
        livenessProbe:
          exec:
            command:
            - /opt/certscanner/certscanner
            - -version
          initialDelaySeconds: 30
          periodSeconds: 60
---
apiVersion: v1
kind: Service
metadata:
  name: certscanner-ise-service
  namespace: security-tools
spec:
  selector:
    app: certscanner-ise
  ports:
  - port: 8080
    targetPort: 8080
  type: ClusterIP