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- Created docs/anleitungen/SECURITY.md with comprehensive security documentation covering: - Rate Limiter configuration and usage - IP Allowlist/Blocklist with CIDR and wildcard support - CSRF Protection (Double Submit Cookie pattern) - Data Masking for sensitive fields in logs - Pre-commit hook for secret detection - CI/CD security workflow - Test suite overview (143 tests) - Production checklist and monitoring recommendations - Updated TODO.md: - Marked AuditLogs as completed - Marked CI/CD Pipeline as completed - Added SECURITY.md to documentation section 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
264 lines
6.3 KiB
Markdown
264 lines
6.3 KiB
Markdown
# Security-Richtlinien - Payload CMS Multi-Tenant
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> Letzte Aktualisierung: 08.12.2025
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## Übersicht
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Dieses Dokument beschreibt die implementierten Sicherheitsmaßnahmen für das Payload CMS Multi-Tenant-Projekt.
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---
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## Security-Module
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Alle Security-Funktionen befinden sich in `src/lib/security/`:
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| Modul | Datei | Zweck |
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|-------|-------|-------|
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| Rate Limiter | `rate-limiter.ts` | Schutz vor API-Missbrauch |
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| IP Allowlist | `ip-allowlist.ts` | IP-basierte Zugriffskontrolle |
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| CSRF Protection | `csrf.ts` | Cross-Site Request Forgery Schutz |
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| Data Masking | `data-masking.ts` | Sensitive Daten in Logs maskieren |
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### Rate Limiter
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**Vordefinierte Limiter:**
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| Name | Limit | Fenster | Verwendung |
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|------|-------|---------|------------|
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| `publicApiLimiter` | 60 Requests | 1 Minute | Öffentliche API-Endpunkte |
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| `authLimiter` | 5 Requests | 15 Minuten | Login-Versuche |
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| `emailLimiter` | 10 Requests | 1 Minute | E-Mail-Versand |
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| `searchLimiter` | 30 Requests | 1 Minute | Suche & Posts-API |
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| `formLimiter` | 5 Requests | 10 Minuten | Formular-Submissions |
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**Verwendung:**
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```typescript
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import { searchLimiter, rateLimitHeaders } from '@/lib/security'
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export async function GET(req: NextRequest) {
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const ip = getClientIp(req.headers)
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const rateLimit = await searchLimiter.check(ip)
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if (!rateLimit.allowed) {
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return NextResponse.json(
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{ error: 'Too many requests' },
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{
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status: 429,
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headers: rateLimitHeaders(rateLimit, 30)
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}
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)
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}
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// ...
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}
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```
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**Redis-Support:**
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- Automatischer Fallback auf In-Memory-Store wenn Redis nicht verfügbar
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- Für verteilte Systeme: Redis via `REDIS_URL` konfigurieren
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### IP Allowlist/Blocklist
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**Environment-Variablen:**
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| Variable | Zweck | Format |
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|----------|-------|--------|
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| `BLOCKED_IPS` | Globale Blocklist | IP, CIDR, Wildcard |
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| `SEND_EMAIL_ALLOWED_IPS` | E-Mail-Endpoint Allowlist | IP, CIDR, Wildcard |
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| `ADMIN_ALLOWED_IPS` | Admin-Panel Allowlist | IP, CIDR, Wildcard |
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| `WEBHOOK_ALLOWED_IPS` | Webhook-Endpoint Allowlist | IP, CIDR, Wildcard |
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**Unterstützte Formate:**
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```bash
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# Einzelne IP
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BLOCKED_IPS=192.168.1.100
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# Mehrere IPs
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BLOCKED_IPS=192.168.1.100,10.0.0.50
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# CIDR-Notation
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BLOCKED_IPS=10.0.0.0/24
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# Wildcard
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BLOCKED_IPS=192.168.*
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# Kombiniert
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BLOCKED_IPS=10.0.0.0/8,192.168.1.50,172.16.*
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```
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**Verwendung:**
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```typescript
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import { validateIpAccess } from '@/lib/security'
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const ipCheck = validateIpAccess(req, 'sendEmail')
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if (!ipCheck.allowed) {
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return NextResponse.json(
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{ error: 'Access denied', reason: ipCheck.reason },
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{ status: 403 }
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)
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}
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```
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### CSRF Protection
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**Pattern:** Double Submit Cookie
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**Token-Endpoint:** `GET /api/csrf-token`
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**Frontend-Integration:**
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```typescript
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// 1. Token abrufen
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const res = await fetch('/api/csrf-token', { credentials: 'include' })
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const { csrfToken } = await res.json()
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// 2. Bei Mutations mitschicken
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await fetch('/api/send-email', {
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method: 'POST',
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credentials: 'include',
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headers: {
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'Content-Type': 'application/json',
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'x-csrf-token': csrfToken,
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},
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body: JSON.stringify({ /* ... */ })
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})
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```
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**Server-seitige Validierung:**
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```typescript
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import { validateCsrf } from '@/lib/security'
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const csrf = validateCsrf(req)
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if (!csrf.valid) {
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return NextResponse.json(
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{ error: 'CSRF validation failed' },
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{ status: 403 }
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)
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}
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```
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**Bypass für Server-to-Server:**
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- Requests ohne `Origin`/`Referer` Header werden als Server-to-Server behandelt
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- API-Key-basierte Authentifizierung umgeht CSRF-Check
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### Data Masking
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**Automatisch maskierte Felder:**
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- password, passwd, pwd
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- token, accessToken, refreshToken
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- apiKey, api_key
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- secret, clientSecret
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- credentials
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- privateKey, private_key
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- smtpPassword, smtp_pass
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**Verwendung:**
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```typescript
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import { maskObject, createSafeLogger } from '@/lib/security'
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// Objekte maskieren
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const safeData = maskObject(sensitiveObject)
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// Safe Logger verwenden
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const logger = createSafeLogger('MyModule')
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logger.info('User action', { password: 'secret' })
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// Output: { password: '[REDACTED]' }
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```
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**Pattern-Erkennung:**
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- JWT Tokens: Header bleibt, Payload/Signature maskiert
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- Connection Strings: Passwort maskiert
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- Private Keys: Komplett ersetzt
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---
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## Pre-Commit Hook
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Secret Detection bei jedem Commit via `scripts/detect-secrets.sh`:
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**Installation:**
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```bash
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ln -sf ../../scripts/detect-secrets.sh .git/hooks/pre-commit
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```
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**Erkannte Patterns:**
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- API Keys und Tokens
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- AWS Credentials
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- Private Keys
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- Passwörter in Code
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- SMTP Credentials
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- Database Connection Strings
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- JWT Tokens
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- Webhook URLs (Slack, Discord)
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- GitHub/SendGrid/Stripe Tokens
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**Ignorierte Dateien:**
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- `*.min.js`, `*.min.css`
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- `package-lock.json`, `pnpm-lock.yaml`
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- `*.md`, `*.txt`
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- `*.example`, `*.sample`
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- `*.spec.ts`, `*.test.ts` (Test-Dateien)
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---
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## CI/CD Security
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**.github/workflows/security.yml:**
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| Job | Prüfung |
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|-----|---------|
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| `secrets` | Gitleaks Secret Scanning |
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| `dependencies` | npm audit, Dependency Check |
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| `codeql` | Static Code Analysis |
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| `security-tests` | 143 Security Unit & Integration Tests |
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---
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## Test Suite
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**Ausführung:**
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```bash
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# Alle Security-Tests
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pnpm test:security
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# Nur Unit-Tests
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pnpm test:unit
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```
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**Abdeckung:**
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| Test-Datei | Tests | Bereich |
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|------------|-------|---------|
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| `rate-limiter.unit.spec.ts` | 21 | Limiter, Tracking, Reset |
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| `csrf.unit.spec.ts` | 34 | Token, Validierung, Origin |
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| `ip-allowlist.unit.spec.ts` | 29 | CIDR, Wildcards, Endpoints |
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| `data-masking.unit.spec.ts` | 41 | Felder, Patterns, Rekursion |
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| `security-api.int.spec.ts` | 18 | API-Integration |
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---
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## Empfehlungen
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### Production Checklist
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- [ ] Alle `BLOCKED_IPS` für bekannte Angreifer setzen
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- [ ] `SEND_EMAIL_ALLOWED_IPS` auf vertrauenswürdige IPs beschränken
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- [ ] `ADMIN_ALLOWED_IPS` auf Office/VPN-IPs setzen
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- [ ] Redis für verteiltes Rate Limiting konfigurieren
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- [ ] CSRF_SECRET in .env setzen (min. 32 Zeichen)
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- [ ] Pre-Commit Hook aktivieren
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### Monitoring
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- Rate Limit Violations loggen (429 Responses)
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- CSRF Validation Failures überwachen
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- Blocked IP Attempts tracken
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- Login-Fehlversuche (authLimiter) alertieren
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---
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## Änderungshistorie
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| Datum | Änderung |
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|-------|----------|
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| 08.12.2025 | Security Test Suite (143 Tests) |
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| 07.12.2025 | Rate Limiter, CSRF, IP Allowlist, Data Masking |
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| 07.12.2025 | Pre-Commit Hook, GitHub Actions Workflow |
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