Security Hardening Guide¶

This guide outlines security best practices and hardening procedures for AIDDDMAP deployments.

Core Security Principles¶

1. Defense in Depth¶

• Multiple layers of security controls
• Redundant security measures
• Comprehensive monitoring
• Regular security audits

2. Least Privilege¶

• Minimal access rights
• Role-based access control
• Regular access reviews
• Just-in-time access

3. Zero Trust¶

• Verify every request
• Encrypt all data
• Authenticate all users
• Monitor all activity

Infrastructure Security¶

1. Network Security¶

Firewall Configuration¶

# Allow only necessary ports
ufw allow 443/tcp
ufw allow 80/tcp
ufw allow 22/tcp

# Enable firewall
ufw enable

# Check status
ufw status verbose

Network Isolation¶

network_segments:
  frontend:
    subnet: "10.0.1.0/24"
    access: ["web", "api"]

  backend:
    subnet: "10.0.2.0/24"
    access: ["api", "database"]

  database:
    subnet: "10.0.3.0/24"
    access: ["backend"]

2. Server Hardening¶

System Updates¶

# Update package list
apt update

# Upgrade packages
apt upgrade -y

# Remove unused packages
apt autoremove -y

SSH Configuration¶

# /etc/ssh/sshd_config
PermitRootLogin no
PasswordAuthentication no
PubkeyAuthentication yes
Protocol 2
MaxAuthTries 3
ClientAliveInterval 300
ClientAliveCountMax 0

Application Security¶

1. Authentication¶

Password Policy¶

interface PasswordPolicy {
  minLength: 12;
  requireUppercase: true;
  requireLowercase: true;
  requireNumbers: true;
  requireSpecialChars: true;
  maxAge: 90; // days
  preventReuse: 12; // previous passwords
}

Multi-Factor Authentication¶

interface MFAConfig {
  required: true;
  methods: ["totp", "backup-codes"];
  gracePerion: 7; // days
  backupCodeCount: 10;
}

2. Authorization¶

Role Configuration¶

{
  "roles": {
    "admin": {
      "permissions": ["*"],
      "mfa_required": true
    },
    "developer": {
      "permissions": ["read:*", "write:code", "deploy:test"],
      "mfa_required": true
    },
    "user": {
      "permissions": ["read:own", "write:own"],
      "mfa_required": false
    }
  }
}

Permission Checks¶

interface PermissionCheck {
  resource: string;
  action: "read" | "write" | "delete";
  owner: string;
  requester: {
    id: string;
    role: string;
    permissions: string[];
  };
}

Data Security¶

1. Encryption¶

At-Rest Encryption¶

interface EncryptionConfig {
  algorithm: "AES-256-GCM";
  keyRotation: {
    enabled: true;
    frequency: "quarterly";
  };
  keyStorage: {
    type: "vault";
    path: "secrets/data-encryption";
  };
}

In-Transit Encryption¶

# NGINX SSL Configuration
ssl_protocols TLSv1.2 TLSv1.3;
ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256;
ssl_prefer_server_ciphers off;
ssl_session_timeout 1d;
ssl_session_cache shared:SSL:50m;
ssl_session_tickets off;
ssl_stapling on;
ssl_stapling_verify on;

2. Data Classification¶

Classification Levels¶

classification_levels:
  public:
    encryption: optional
    retention: "30d"

  internal:
    encryption: required
    retention: "1y"

  confidential:
    encryption: required
    retention: "7y"
    audit_logging: true

API Security¶

1. API Authentication¶

JWT Configuration¶

interface JWTConfig {
  algorithm: "RS256";
  expiresIn: "1h";
  refreshToken: {
    enabled: true;
    expiresIn: "7d";
  };
  audience: "api.aidddmap.com";
  issuer: "auth.aidddmap.com";
}

Rate Limiting¶

interface RateLimitConfig {
  window: "15m";
  max: 100;
  blacklist: string[];
  whitelist: string[];
  headers: true;
}

2. Input Validation¶

Request Validation¶

interface ValidationRules {
  body: {
    maxSize: "10mb";
    sanitize: true;
  };
  headers: {
    required: ["authorization"];
    forbidden: ["x-powered-by"];
  };
  query: {
    maxLength: 1000;
    allowedParams: string[];
  };
}

Monitoring & Auditing¶

1. Security Monitoring¶

Audit Logging¶

interface AuditLog {
  timestamp: Date;
  actor: {
    id: string;
    role: string;
    ip: string;
  };
  action: string;
  resource: string;
  status: "success" | "failure";
  details: Record<string, any>;
}

Alert Configuration¶

security_alerts:
  - name: brute_force_attempt
    condition: login_failures > 5
    window: 5m
    severity: high

  - name: privilege_escalation
    condition: role_change = true
    window: 1m
    severity: critical

2. Incident Response¶

Response Plan¶

incident_response:
  steps:
    1: "Identify and isolate"
    2: "Assess impact"
    3: "Contain threat"
    4: "Eradicate cause"
    5: "Recover systems"
    6: "Document and report"

  contacts:
    security_team: security@yourdomain.com
    legal_team: legal@yourdomain.com
    pr_team: pr@yourdomain.com

Compliance & Documentation¶

1. Security Policies¶

Access Control Policy¶

access_policy:
  review_frequency: quarterly
  approval_required:
    - role_changes
    - permission_grants
    - api_key_creation
  documentation_required:
    - access_requests
    - policy_exceptions
    - incident_reports

Data Handling Policy¶

data_handling:
  classification_required: true
  encryption_required:
    - pii
    - financial
    - health
  retention_rules:
    logs: 1y
    backups: 7y
    user_data: forever

2. Compliance Monitoring¶

Compliance Checks¶

interface ComplianceCheck {
  standard: string;
  requirement: string;
  status: "compliant" | "non-compliant";
  evidence: string[];
  lastCheck: Date;
  nextCheck: Date;
}

Incident Response¶

1. Document Procedures¶

2. Train Response Team¶

3. Regular Drills¶

4. Post-Incident Review¶

Best Practices¶

1. Development¶

• Use secure coding practices
• Implement code review
• Run security scans
• Keep dependencies updated

2. Deployment¶

• Use secure configurations
• Implement change control
• Monitor security events
• Regular security updates

3. Operations¶

• Monitor system activity
• Review access logs
• Update security policies
• Conduct security training

4. Incident Response¶

• Document procedures
• Train response team
• Regular drills
• Post-incident review

Next Steps¶

1. Implement monitoring setup
2. Configure backup encryption
3. Set up security alerts
4. Review compliance requirements
5. Train team on incident response

Support¶

Need help with security?

• Review our Security Policy
• Contact Security Team
• Report Security Issues