delphi-database/SECURITY_SETUP_README.md

🔒 Delphi Database System - Security Setup Guide

⚠️ CRITICAL: P0 Security Issues RESOLVED

The following CRITICAL SECURITY VULNERABILITIES have been fixed:

✅ 1. CORS Vulnerability Fixed

• Issue: allow_origins=["*"] allowed any website to access the API
• Fix: CORS now requires specific domain configuration via CORS_ORIGINS environment variable
• Location: app/main.py:61-87

✅ 2. Hardcoded Passwords Removed

• Issue: Default passwords admin123 and change-me were hardcoded
• Fix: All passwords now require secure environment variables
• Files Fixed: app/config.py, e2e/global-setup.js, playwright.config.js, docker-compose.dev.yml, scripts/init-container.sh, templates/login.html

✅ 3. Comprehensive Input Validation Added

• Issue: Upload endpoints lacked proper security validation
• Fix: New app/utils/file_security.py module provides:
  • File type validation using content inspection (not just extensions)
  • File size limits to prevent DoS attacks
  • Path traversal protection
  • Malware pattern detection
  • Filename sanitization
• Files Enhanced: app/api/documents.py, app/api/templates.py, app/api/admin.py

✅ 4. Path Traversal Protection Implemented

• Issue: File operations could potentially access files outside intended directories
• Fix: Secure path generation with directory traversal prevention
• Implementation: FileSecurityValidator.generate_secure_path()

🚀 Quick Security Setup

1. Generate Secure Environment Configuration

# Run the automated security setup script
python scripts/setup-secure-env.py

This script will:

• Generate a cryptographically secure 32+ character SECRET_KEY
• Create a strong admin password
• Configure CORS for your specific domains
• Set up production-ready security settings
• Create a secure .env file with proper permissions

2. Manual Environment Setup

If you prefer manual setup, copy env-example.txt to .env and configure:

# Copy the example file
cp env-example.txt .env

# Generate a secure secret key
python -c "import secrets; print('SECRET_KEY=' + secrets.token_urlsafe(32))"

# Generate a secure admin password  
python -c "import secrets, string; print('ADMIN_PASSWORD=' + ''.join(secrets.choice(string.ascii_letters + string.digits + '!@#$%^&*') for _ in range(16)))"

3. Required Environment Variables

CRITICAL - Must be set before running:

SECRET_KEY=your-32-plus-character-random-string
ADMIN_PASSWORD=your-secure-admin-password
CORS_ORIGINS=https://your-domain.com,https://www.your-domain.com

Important - Should be configured:

DEBUG=False                    # For production
SECURE_COOKIES=True           # For HTTPS production
DATABASE_URL=your-db-url      # For production database

🛡️ Security Features Implemented

File Upload Security

• File Type Validation: Content-based MIME type detection (not just extensions)
• Size Limits: Configurable per file category to prevent DoS
• Path Traversal Protection: Secure path generation prevents directory escape
• Malware Detection: Basic pattern scanning for malicious content
• Filename Sanitization: Removes dangerous characters and path separators

Authentication Security

• Strong Password Requirements: Environment-enforced secure passwords
• Secure Secret Management: Cryptographically secure JWT secret keys
• No Hardcoded Credentials: All secrets via environment variables

Network Security

• Restricted CORS: Domain-specific origin restrictions
• Secure Headers: Proper CORS header configuration
• Method Restrictions: Limited to necessary HTTP methods

🔍 Security Validation

Before Production Deployment

Run this checklist to verify security:

# 1. Verify no hardcoded secrets
grep -r "admin123\|change-me\|secret.*=" app/ --exclude-dir=__pycache__ || echo "✅ No hardcoded secrets found"

# 2. Verify CORS configuration
grep -n "allow_origins" app/main.py

# 3. Verify .env file permissions
ls -la .env | grep "^-rw-------" && echo "✅ .env permissions correct" || echo "❌ Fix .env permissions: chmod 600 .env"

# 4. Test file upload validation
curl -X POST http://localhost:8000/api/documents/upload/test-file \
  -H "Authorization: Bearer your-token" \
  -F "file=@malicious.exe" \
  && echo "❌ Upload validation failed" || echo "✅ Upload validation working"

Security Test Results Expected

• ✅ No hardcoded passwords in codebase
• ✅ CORS origins restricted to specific domains
• ✅ File uploads reject dangerous file types
• ✅ Path traversal attempts blocked
• ✅ Large file uploads rejected
• ✅ .env file has restrictive permissions (600)

🚨 Production Security Checklist

Required Before Going Live

• SECRET_KEY generated with 32+ cryptographically random characters
• ADMIN_PASSWORD set to strong password (12+ chars, mixed case, symbols)
• CORS_ORIGINS configured for specific production domains (not localhost)
• DEBUG=False set for production
• SECURE_COOKIES=True if using HTTPS (required for production)
• Database backups configured and tested
• HTTPS enabled with valid SSL certificates
• .env file has 600 permissions and is not in version control
• Log monitoring configured for security events
• Rate limiting configured (next priority)
• Security audit completed by security professional

Ongoing Security Maintenance

• 🔄 Rotate SECRET_KEY every 90 days using scripts/rotate-secret-key.py
• 🔄 Change admin password every 90 days
• 📊 Monitor logs for security events
• 🔍 Regular security scans of dependencies
• 📋 Keep software updated (Python, FastAPI, dependencies)

📞 Next Steps

The P0 Critical Security Issues are now RESOLVED. The system is significantly more secure, but you should continue with P1 High Priority items:

1. Rate Limiting - Implement API rate limiting to prevent abuse
2. Security Headers - Add HSTS, CSP, X-Frame-Options headers
3. Session Management - Enhance JWT token management
4. Database Security - Review SQL injection prevention
5. Security Monitoring - Implement intrusion detection

For immediate deployment readiness, ensure all items in the Production Security Checklist above are completed.

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🔒 Remember: Security is an ongoing process. This setup addresses the most critical vulnerabilities, but regular security reviews and updates are essential for a production system handling sensitive legal and financial data.