dbis_core/docs/security/IRU_SECURITY_HARDENING.md

IRU Security Hardening Guide

AAA+++ Grade Security Implementation

Overview

This guide outlines security hardening measures for IRU infrastructure to achieve AAA+++ grade security standards.

Security Architecture

flowchart TB
    subgraph External["External Access"]
        Internet[Internet]
        VPN[VPN Gateway]
    end
    
    subgraph DMZ["DMZ Layer"]
        WAF[Web Application Firewall]
        LB[Load Balancer]
        API_GW[API Gateway]
    end
    
    subgraph Internal["Internal Network"]
        Auth[Keycloak Auth]
        Services[IRU Services]
        DB[(Encrypted Database)]
        HSM[Hardware Security Module]
    end
    
    subgraph Infrastructure["Proxmox VE"]
        Containers[LXC Containers]
        Network[Isolated Network]
        Firewall[Host Firewall]
    end
    
    Internet --> VPN
    VPN --> WAF
    WAF --> LB
    LB --> API_GW
    API_GW --> Auth
    Auth --> Services
    Services --> DB
    Services --> HSM
    Services --> Containers
    Containers --> Network
    Network --> Firewall

Security Controls

1. Network Security

Firewall Rules:

• Ingress: Only allow required ports (443, 8545, 5000)
• Egress: Restrict outbound connections
• Inter-container: No lateral movement by default

Network Segmentation:

• Separate VLANs for each tier
• Isolated management network
• DMZ for external-facing services

2. Authentication & Authorization

Multi-Factor Authentication:

• Required for all admin access
• TOTP or hardware tokens
• Biometric authentication (where supported)

Role-Based Access Control:

• Granular permissions
• Principle of least privilege
• Regular access reviews

API Authentication:

• mTLS for all API calls
• JWT tokens with short expiration
• API key rotation (90 days)

3. Data Protection

Encryption:

• At rest: AES-256 encryption
• In transit: TLS 1.3
• Key management: HSM-backed

Data Classification:

• PII: Highest protection
• Financial data: High protection
• Operational data: Standard protection

Data Retention:

• Per IRU Agreement terms
• Automated deletion after retention period
• Secure deletion methods

4. Container Security

Image Security:

• Scan all container images
• Use only signed images
• Regular updates and patches

Runtime Security:

• Read-only root filesystems
• Non-root user execution
• Resource limits enforced
• Security contexts applied

Network Isolation:

• No inter-container communication by default
• Explicit allow rules only
• Network policies enforced

5. Monitoring & Logging

Security Monitoring:

• Real-time threat detection
• Anomaly detection
• Intrusion detection system (IDS)

Audit Logging:

• All API calls logged
• Authentication events logged
• Administrative actions logged
• Immutable audit trail

Alerting:

• Security incidents: Immediate alert
• Failed authentication: Alert after threshold
• Unusual activity: Alert with context

6. Compliance

Regulatory Compliance:

• GDPR compliance
• PCI DSS (if applicable)
• SOC 2 Type II
• ISO 27001

Audit Trail:

• Complete transaction history
• Immutable logs
• Regular audit reviews

Security Testing

Penetration Testing

• Annual external penetration tests
• Quarterly internal security assessments
• Continuous vulnerability scanning

Security Controls Testing

• Access control testing
• Encryption validation
• Network segmentation verification
• Incident response drills

Incident Response

1. Detection: Automated threat detection
2. Containment: Isolate affected systems
3. Investigation: Root cause analysis
4. Remediation: Fix vulnerabilities
5. Recovery: Restore services
6. Post-Incident: Lessons learned

Security Certifications

• SOC 2 Type II
• ISO 27001
• PCI DSS (if applicable)
• FedRAMP (if applicable)

Security Contacts

• Security Team: security@dbis.org
• Incident Response: security-incident@dbis.org
• Compliance: compliance@dbis.org