Security Guide

Overview

This guide outlines security best practices and configurations for the HaloPSA CRM Custom Integration, ensuring secure handling of sensitive data and protection against common threats.

Security Principles

Defense in Depth

The integration implements multiple layers of security:

Network Security: Encrypted communications and access controls
Application Security: Input validation and secure coding practices
Data Security: Encryption at rest and in transit
Operational Security: Secure configuration and monitoring

Data Classification

Public Data: Basic contact information
Internal Data: Business intelligence and analytics
Confidential Data: Financial information and strategic data
Restricted Data: Personal identifiable information (PII)

Authentication and Authorization

API Authentication Methods

OAuth 2.0 (Recommended)

{
  "security": {
    "authentication": {
      "method": "oauth2",
      "provider": "halopsa",
      "token_endpoint": "https://your-instance.halopsa.com/oauth/token",
      "scopes": ["read", "write", "admin"],
      "token_validation": {
        "issuer": "https://your-instance.halopsa.com",
        "audience": "halopsa-integration",
        "leeway": 30
      }
    }
  }
}

API Key Authentication

{
  "security": {
    "authentication": {
      "method": "api_key",
      "header_name": "X-API-Key",
      "key_rotation": {
        "enabled": true,
        "interval_days": 90,
        "grace_period_hours": 24
      },
      "rate_limiting": {
        "enabled": true,
        "requests_per_hour": 1000,
        "burst_limit": 100
      }
    }
  }
}

Role-Based Access Control (RBAC)

User Roles and Permissions

{
  "security": {
    "authorization": {
      "rbac": {
        "enabled": true,
        "roles": {
          "admin": {
            "permissions": [
              "config.manage",
              "users.manage",
              "data.sync",
              "analytics.view",
              "logs.view"
            ],
            "inherits": ["operator"]
          },
          "operator": {
            "permissions": [
              "data.sync",
              "data.view",
              "analytics.view"
            ],
            "inherits": ["viewer"]
          },
          "viewer": {
            "permissions": [
              "data.view.readonly",
              "analytics.view"
            ]
          }
        }
      }
    }
  }
}

Multi-Factor Authentication (MFA)

{
  "security": {
    "mfa": {
      "enabled": true,
      "required_for": ["admin", "operator"],
      "methods": ["totp", "sms", "email"],
      "grace_period_days": 7
    }
  }
}

Data Protection

Encryption at Rest

Database Encryption

{
  "security": {
    "encryption": {
      "at_rest": {
        "enabled": true,
        "algorithm": "aes-256-gcm",
        "key_management": "aws-kms",
        "encrypted_fields": [
          "email",
          "phone",
          "social_security_number",
          "bank_account_details"
        ]
      }
    }
  }
}

File System Encryption

# Enable full disk encryption
cryptsetup luksFormat /dev/sda1
cryptsetup luksOpen /dev/sda1 encrypted_disk

# Mount encrypted filesystem
mount /dev/mapper/encrypted_disk /var/lib/halopsa-integration

Encryption in Transit

TLS Configuration

server {
    listen 443 ssl http2;
    server_name your-domain.com;

    ssl_certificate /path/to/certificate.crt;
    ssl_certificate_key /path/to/private.key;
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers ECDHE-RSA-AES256-GCM-SHA512:DHE-RSA-AES256-GCM-SHA512;
    ssl_prefer_server_ciphers off;

    location /api/ {
        proxy_pass http://localhost:3000;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Real-IP $remote_addr;
    }
}

API Client Configuration

const https = require('https');

const agent = new https.Agent({
  rejectUnauthorized: true,
  minVersion: 'TLSv1.2',
  ciphers: 'ECDHE-RSA-AES256-GCM-SHA512'
});

Data Masking and Anonymization

PII Masking Rules

{
  "security": {
    "data_masking": {
      "enabled": true,
      "rules": {
        "email": {
          "mask_pattern": "****@****.***",
          "preserve_domain": true
        },
        "phone": {
          "mask_pattern": "***-***-****",
          "preserve_area_code": true
        },
        "ssn": {
          "mask_pattern": "***-**-****"
        }
      },
      "log_masking": {
        "enabled": true,
        "mask_in_logs": ["password", "api_key", "token"]
      }
    }
  }
}

Network Security

Firewall Configuration

Inbound Rules

# Allow HTTPS traffic only
ufw allow 443/tcp
ufw allow ssh
ufw --force enable

# Block all other inbound traffic
ufw default deny incoming

Outbound Rules

# Allow connections to HaloPSA
ufw allow out to your-instance.halopsa.com port 443

# Allow connections to B2B providers
ufw allow out to api.apollo.io port 443
ufw allow out to api.zoominfo.com port 443

# Restrict all other outbound traffic
ufw default deny outgoing

Web Application Firewall (WAF)

ModSecurity Configuration

<IfModule mod_security2.c>
    SecRuleEngine On
    SecRequestBodyAccess On
    SecResponseBodyAccess On

    # Block common attack patterns
    SecRule ARGS "@rx <script>" "deny,status:403,msg:'XSS Attack'"

    # Rate limiting
    SecAction "initcol:ip=%{REMOTE_ADDR},pass,nolog"
    SecAction "setvar:ip.slow_dos_counter=+1,expirevar:ip.slow_dos_counter=60" "nolog"
    SecRule IP:SLOW_DOS_COUNTER "@gt 10" "deny,status:429,msg:'Rate limit exceeded'"
</IfModule>

DDoS Protection

Rate Limiting Configuration

{
  "security": {
    "rate_limiting": {
      "enabled": true,
      "rules": {
        "api_endpoints": {
          "requests_per_minute": 100,
          "burst_limit": 20,
          "block_duration_minutes": 15
        },
        "webhooks": {
          "requests_per_minute": 1000,
          "burst_limit": 100
        },
        "auth_endpoints": {
          "requests_per_minute": 10,
          "burst_limit": 5
        }
      },
      "whitelist": {
        "ips": ["192.168.1.0/24"],
        "user_agents": ["HaloPSA-Webhook/1.0"]
      }
    }
  }
}

Secure Coding Practices

Input Validation

Schema-Based Validation

const Joi = require('joi');

const leadSchema = Joi.object({
  first_name: Joi.string().min(1).max(50).required(),
  last_name: Joi.string().min(1).max(50).required(),
  email: Joi.string().email().required(),
  phone: Joi.string().pattern(/^\+?[\d\s\-\(\)]+$/).optional(),
  company: Joi.string().min(1).max(100).required()
});

app.post('/api/leads', (req, res) => {
  const { error, value } = leadSchema.validate(req.body);
  if (error) {
    return res.status(400).json({ error: error.details[0].message });
  }
  // Process validated data
});

SQL Injection Prevention

Parameterized Queries

const { Pool } = require('pg');

const pool = new Pool({
  connectionString: process.env.DATABASE_URL
});

async function getLeadById(id) {
  const query = 'SELECT * FROM leads WHERE id = $1';
  const values = [id];
  const result = await pool.query(query, values);
  return result.rows[0];
}

XSS Prevention

Content Security Policy

app.use((req, res, next) => {
  res.setHeader('Content-Security-Policy',
    "default-src 'self'; " +
    "script-src 'self' 'unsafe-inline'; " +
    "style-src 'self' 'unsafe-inline'; " +
    "img-src 'self' data: https:; " +
    "font-src 'self'; " +
    "connect-src 'self'"
  );
  next();
});

Secure Headers

const helmet = require('helmet');

app.use(helmet({
  contentSecurityPolicy: {
    directives: {
      defaultSrc: ["'self'"],
      styleSrc: ["'self'", "'unsafe-inline'"],
      scriptSrc: ["'self'"],
      imgSrc: ["'self'", "data:", "https:"]
    }
  },
  hsts: {
    maxAge: 31536000,
    includeSubDomains: true,
    preload: true
  }
}));

Webhook Security

Signature Verification

HMAC-SHA256 Verification

const crypto = require('crypto');

function verifyWebhookSignature(payload, signature, secret) {
  const expectedSignature = crypto
    .createHmac('sha256', secret)
    .update(payload)
    .digest('hex');

  return crypto.timingSafeEqual(
    Buffer.from(signature, 'hex'),
    Buffer.from(expectedSignature, 'hex')
  );
}

app.post('/webhooks/apollo', (req, res) => {
  const signature = req.headers['x-apollo-signature'];
  const payload = JSON.stringify(req.body);

  if (!verifyWebhookSignature(payload, signature, process.env.APOLLO_WEBHOOK_SECRET)) {
    return res.status(401).json({ error: 'Invalid signature' });
  }

  // Process webhook
});

Webhook Authentication

{
  "security": {
    "webhooks": {
      "authentication": {
        "required": true,
        "methods": ["signature", "api_key"],
        "signature": {
          "algorithm": "hmac-sha256",
          "header": "X-Webhook-Signature",
          "tolerance_seconds": 300
        }
      },
      "validation": {
        "ip_whitelist": ["192.0.2.0/24"],
        "user_agent_check": true,
        "expected_user_agent": "Apollo-Webhook/1.0"
      }
    }
  }
}

Secrets Management

Environment Variables

# Generate secure random keys
node -e "console.log(require('crypto').randomBytes(32).toString('hex'))"

# Store in environment
export API_SECRET_KEY=your_generated_key
export DB_ENCRYPTION_KEY=your_encryption_key

Secrets Manager Integration

AWS Secrets Manager

const AWS = require('aws-sdk');

const secretsManager = new AWS.SecretsManager();

async function getSecret(secretName) {
  const data = await secretsManager.getSecretValue({ SecretId: secretName }).promise();
  return JSON.parse(data.SecretString);
}

// Usage
const secrets = await getSecret('halopsa-integration-secrets');
process.env.HALOPSA_CLIENT_SECRET = secrets.clientSecret;

HashiCorp Vault

const vault = require('node-vault')({
  endpoint: process.env.VAULT_ENDPOINT,
  token: process.env.VAULT_TOKEN
});

async function getSecrets() {
  const { data } = await vault.read('secret/halopsa-integration');
  return data;
}

Monitoring and Auditing

Security Event Logging

Audit Trail Configuration

{
  "security": {
    "auditing": {
      "enabled": true,
      "events": {
        "authentication": {
          "login_attempts": true,
          "failed_logins": true,
          "password_changes": true
        },
        "data_access": {
          "read_operations": true,
          "write_operations": true,
          "export_operations": true
        },
        "configuration_changes": {
          "config_updates": true,
          "user_permissions": true
        }
      },
      "storage": {
        "retention_days": 365,
        "encryption": true,
        "immutable": true
      }
    }
  }
}

Security Monitoring

SIEM Integration

const winston = require('winston');

// Send security events to SIEM
const siemTransport = new winston.transports.Http({
  host: 'siem.yourcompany.com',
  port: 514,
  path: '/security-events',
  ssl: true
});

const logger = winston.createLogger({
  level: 'info',
  format: winston.format.json(),
  transports: [siemTransport]
});

// Log security events
logger.info('Authentication failure', {
  event: 'auth_failure',
  user: 'unknown',
  ip: req.ip,
  userAgent: req.get('User-Agent'),
  timestamp: new Date().toISOString()
});

Intrusion Detection

File Integrity Monitoring

# Install and configure AIDE
apt-get install aide
aideinit
cp /var/lib/aide/aide.db.new /var/lib/aide/aide.db

# Schedule daily checks
echo "0 2 * * * root /usr/bin/aide --check" >> /etc/crontab

Log Analysis for Threats

# Monitor for suspicious patterns
tail -f /var/log/auth.log | grep -i "failed\|invalid"

# Check for brute force attempts
grep "Failed password" /var/log/auth.log | awk '{print $11}' | sort | uniq -c | sort -nr

Incident Response

Incident Response Plan

Detection Phase

Monitor alerts and logs for security events
Verify incident through multiple sources
Assess impact and scope

Containment Phase

Isolate affected systems
Disable compromised accounts
Preserve evidence for investigation

Recovery Phase

Restore systems from clean backups
Apply security patches
Monitor for reoccurrence

Lessons Learned Phase

Document incident details
Update security measures
Conduct post-mortem analysis

Communication Templates

Security Incident Notification

**Security Incident Report**

**Incident ID:** INC-2024-001
**Date/Time:** 2024-01-25 14:30 UTC
**Severity:** High
**Status:** Investigating

**Description:**
Unauthorized access attempt detected on API endpoints.

**Affected Systems:**
- HaloPSA Integration API
- Database server

**Actions Taken:**
- Blocked suspicious IP addresses
- Enabled enhanced monitoring
- Notified security team

**Next Steps:**
- Forensic analysis in progress
- Password reset for affected accounts
- Security patch deployment

**Contact:**
Security Team - security@yourcompany.com

Compliance Considerations

Data Subject Rights

{
  "compliance": {
    "gdpr": {
      "data_retention": {
        "leads": "7_years",
        "prospects": "7_years",
        "opportunities": "10_years"
      },
      "consent_management": {
        "required": true,
        "consent_types": ["marketing", "profiling", "data_sharing"]
      },
      "data_portability": {
        "enabled": true,
        "formats": ["json", "csv"]
      }
    }
  }
}

SOC 2 Compliance

Access Controls

Implement least privilege access
Regular access reviews
Multi-factor authentication for privileged accounts

Change Management

Document all configuration changes
Test changes in staging environment
Maintain change logs with approval records

Industry-Specific Requirements

HIPAA (Healthcare)

{
  "compliance": {
    "hipaa": {
      "phi_protection": {
        "encryption": "aes-256-gcm",
        "access_logging": true,
        "data_minimization": true
      },
      "audit_trails": {
        "enabled": true,
        "retention": "6_years"
      }
    }
  }
}

Security Testing

Vulnerability Scanning

Automated Scanning

# Run OWASP ZAP scan
docker run -t owasp/zap2docker-stable zap-baseline.py \
  -t https://your-domain.com \
  -r zap-report.html

# Run dependency vulnerability check
npm audit
npm audit fix

Penetration Testing

# Schedule quarterly penetration tests
# Include API endpoints, authentication, and data handling
# Test for common vulnerabilities:
# - SQL injection
# - XSS
# - CSRF
# - Broken authentication
# - Sensitive data exposure

Security Code Review

Automated Code Analysis

{
  "security": {
    "code_analysis": {
      "tools": ["eslint-security", "sonarqube", "snyk"],
      "rules": {
        "no_hardcoded_secrets": true,
        "secure_random": true,
        "input_validation": true,
        "sql_injection_prevention": true
      }
    }
  }
}

Security Updates and Patching

Automated Updates

# Configure unattended upgrades
cat > /etc/apt/apt.conf.d/50unattended-upgrades << EOF
Unattended-Upgrade::Allowed-Origins {
  "Ubuntu focal-security";
};
Unattended-Upgrade::Package-Blacklist {
};
Unattended-Upgrade::Automatic-Reboot "true";
EOF

# Enable unattended upgrades
systemctl enable unattended-upgrades
systemctl start unattended-upgrades

Dependency Management

{
  "scripts": {
    "security:audit": "npm audit",
    "security:update": "npm update && npm audit fix",
    "security:check": "snyk test && retire"
  }
}

Security Checklist

Pre-Deployment Checklist

Ongoing Security Maintenance

Regular security updates applied
Security monitoring active
Access reviews conducted quarterly
Security training completed annually
Incident response plan tested
Backup security verified
Third-party risk assessments completed

Emergency Contacts

Security Team

Primary: security@yourcompany.com
Secondary: it-security@yourcompany.com
Emergency: +1-800-SECURITY

External Resources

CERT Coordination Center: cert@cert.org
HaloPSA Security: security@halopsa.com
B2B Provider Security Teams: Listed in provider documentation

Security Incident Report Form

Incident Details:

Date/Time of incident:
Reported by:
Affected systems/services:
Description of incident:
Potential impact:
Actions taken:
Evidence collected:
Contact information:

Classification:

Severity: