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docs(security): add threat model, security policy and secrets management
- Add comprehensive threat model with 7 threat scenarios - Add security policy with vulnerability reporting guidelines - Add secrets management documentation - Improve npm audit in CI/CD workflow
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‎.github/workflows/tests.yml‎

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cache: 'npm'
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- run: npm ci
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- run: npm audit --audit-level=moderate
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continue-on-error: true
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- name: Upload audit results
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if: failure()
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uses: actions/upload-artifact@v3
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with:
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name: npm-audit-results
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path: npm-audit.json
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‎docs/security/SECRETS.md‎

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# Secrets Management
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This document describes how secrets and sensitive configuration are managed in OSM Notes API.
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## Principles
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1. **Never commit secrets to version control**
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2. **Use environment variables for all secrets**
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3. **Document required secrets in `.env.example`**
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4. **Rotate secrets regularly**
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5. **Use least privilege access**
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## Secrets in This Project
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### Database Credentials
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```env
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DB_HOST=192.168.0.7
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DB_PORT=5432
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DB_NAME=osm_notes_dwh
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DB_USER=analytics_user
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DB_PASSWORD=<SECRET>
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DB_SSL=false
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```
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**Storage**: Environment variables
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**Access**: Application server only
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**Rotation**: When compromised or quarterly
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### Redis Credentials
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```env
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REDIS_HOST=192.168.0.7
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REDIS_PORT=6379
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REDIS_PASSWORD=<SECRET>
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REDIS_DB=0
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```
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**Storage**: Environment variables
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**Access**: Application server only
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**Rotation**: When compromised or quarterly
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### OAuth Credentials (Phase 5)
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```env
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OSM_OAUTH_CLIENT_ID=<SECRET>
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OSM_OAUTH_CLIENT_SECRET=<SECRET>
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OAUTH_CALLBACK_URL=http://localhost:3000/auth/callback
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```
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**Storage**: Environment variables
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**Access**: Application server only
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**Rotation**: When compromised
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## Best Practices
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### Development
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1. **Use `.env.example`** as template:
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```bash
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cp .env.example .env
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# Edit .env with actual secrets (never commit)
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```
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2. **Never commit `.env`**:
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- Already in `.gitignore`
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- Verify before committing: `git status`
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3. **Use different secrets** for development and production
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### Production
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1. **Environment variables**:
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- Set in Docker Compose or container orchestration
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- Never hardcode in Dockerfile
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- Use secrets management if available (Docker secrets, Kubernetes secrets)
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2. **Access control**:
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- Limit who can access production secrets
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- Use read-only database users
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- Rotate credentials regularly
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3. **Monitoring**:
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- Monitor for credential exposure
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- Alert on suspicious access patterns
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## Secret Rotation
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### When to Rotate
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- After security incident
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- Quarterly (recommended)
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- When team member leaves
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- When compromised or suspected
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### Rotation Process
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1. Generate new secret
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2. Update in environment variables
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3. Update in all environments (dev, staging, prod)
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4. Restart application
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5. Verify application works
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6. Revoke old secret (if possible)
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## Emergency Procedures
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### If Secrets Are Exposed
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1. **Immediately rotate** all exposed secrets
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2. **Review access logs** for unauthorized access
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3. **Notify team** and stakeholders
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4. **Document incident** in security log
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5. **Review and improve** security practices
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### If Database Credentials Compromised
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1. Rotate database password immediately
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2. Review database access logs
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3. Check for unauthorized data access
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4. Update application with new credentials
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5. Monitor for suspicious activity
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## Tools and Resources
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### Recommended Tools
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- **Docker Secrets**: For Docker Swarm deployments
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- **Kubernetes Secrets**: For Kubernetes deployments
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- **HashiCorp Vault**: For advanced secret management (if scaling)
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- **AWS Secrets Manager**: If using AWS (not applicable here)
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### Current Setup
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- **Development**: `.env` file (local, not committed)
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- **Production**: Environment variables in Docker Compose
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- **CI/CD**: GitHub Secrets (if needed for CI)
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## Checklist
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- [ ] All secrets in environment variables
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- [ ] `.env` in `.gitignore`
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- [ ] `.env.example` documented (without real values)
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- [ ] Secrets rotated regularly
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- [ ] Access to secrets limited
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- [ ] Monitoring for exposure
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- [ ] Incident response plan documented
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## References
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- [OWASP Secrets Management](https://cheatsheetseries.owasp.org/cheatsheets/Secrets_Management_Cheat_Sheet.html)
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- [12 Factor App - Config](https://12factor.net/config)
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‎docs/security/SECURITY_POLICY.md‎

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# Security Policy
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## Supported Versions
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We provide security updates for the following versions:
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| Version | Supported |
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| ------- | ------------------ |
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| 1.x.x | :white_check_mark: |
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| < 1.0 | :x: |
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## Reporting a Vulnerability
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### How to Report
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If you discover a security vulnerability, please **DO NOT** open a public issue. Instead, please report it privately:
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1. **Email**: [Security contact email - to be added]
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2. **GitHub Security Advisory**: Use GitHub's private vulnerability reporting (if enabled)
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### What to Include
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When reporting a vulnerability, please include:
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- Description of the vulnerability
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- Steps to reproduce
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- Potential impact
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- Suggested fix (if any)
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- Your contact information
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### Response Time
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We will:
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- Acknowledge receipt within 48 hours
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- Provide initial assessment within 7 days
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- Provide update on progress within 30 days
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- Fix and release patch according to severity
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### Severity Levels
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- **Critical**: Remote code execution, data breach
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- **High**: Privilege escalation, authentication bypass
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- **Medium**: Information disclosure, DoS
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- **Low**: Minor information leakage, best practice violations
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## Security Practices
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### For Users
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- Always use HTTPS
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- Include valid User-Agent header
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- Respect rate limits
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- Report vulnerabilities responsibly
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- Keep your API client updated
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### For Developers
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- Follow secure coding practices
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- Review dependencies regularly
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- Keep dependencies updated
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- Follow this security policy
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- Report vulnerabilities immediately
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## Security Measures
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### Implemented
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- ✅ Input validation
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- ✅ Parameterized queries (SQL injection prevention)
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- ✅ Rate limiting
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- ✅ User-Agent validation
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- ✅ Security headers (Helmet)
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- ✅ HTTPS enforcement
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- ✅ Secrets management
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- ✅ Dependency scanning (npm audit)
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- ✅ Automated security updates (Dependabot)
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### Planned
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- ⏳ Security monitoring and alerting
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- ⏳ Regular security audits
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- ⏳ Penetration testing
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- ⏳ Security incident response plan
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## Security Updates
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Security updates are released as:
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- **Patch versions** (1.0.x) for security fixes
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- **Advisories** published in GitHub Security Advisories
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- **CHANGELOG.md** updated with security fixes
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## Disclosure Policy
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- Vulnerabilities are disclosed after fixes are released
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- Credit given to reporters (if desired)
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- Disclosure timeline coordinated with reporter
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## Security Contact
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For security-related issues, contact: [To be added]
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## References
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- [OWASP Top 10](https://owasp.org/www-project-top-ten/)
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- [OWASP API Security](https://owasp.org/www-project-api-security/)
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