# RAGlint Security Audit Guide

## Achieving Perfect Security Score (90 → 100)

**Current**: 90/100  
**Target**: 100/100  
**Gap**: 10 points (weighted: +0.5 overall)

---

## Option 1: Self-Audit (Free, Gets to ~95/100)

### Security Checklist

#### ✅ Already Completed
- [x] SECURITY.md with vulnerability reporting
- [x] Automated dependency scanning (pip-audit)
- [x] Security linting (bandit)
- [x] PII detection plugin
- [x] SQL injection detection plugin
- [x] Input validation
- [x] Password hashing (bcrypt)
- [x] JWT authentication

#### 🔲 Additional Self-Audit Steps

##### 1. Run Comprehensive Security Scan
```bash
# Install tools
pip install pip-audit bandit safety

# Scan dependencies
pip-audit --desc > security/dependency-audit.txt

# Scan code
bandit -r raglint/ -f json -o security/bandit-report.json
bandit -r raglint/ -f txt -o security/bandit-report.txt

# Check for known vulnerabilities
safety check --json > security/safety-report.json
```

##### 2. Manual Code Review
- [ ] Review all authentication code
- [ ] Check all database queries (SQL injection)
- [ ] Verify all file operations (path traversal)
- [ ] Review all user inputs (XSS, injection)
- [ ] Check secret management (no hardcoded keys)

##### 3. Security Headers (Dashboard)
Add to `raglint/dashboard/app.py`:
```python
from fastapi.middleware.trustedhost import TrustedHostMiddleware
from fastapi.middleware.httpsredirect import HTTPSRedirectMiddleware

# Security headers
@app.middleware("http")
async def add_security_headers(request, call_next):
    response = await call_next(request)
    response.headers["X-Content-Type-Options"] = "nosniff"
    response.headers["X-Frame-Options"] = "DENY"
    response.headers["X-XSS-Protection"] = "1; mode=block"
    response.headers["Strict-Transport-Security"] = "max-age=31536000; includeSubDomains"
    return response
```

##### 4. Rate Limiting
```bash
pip install slowapi

# Add to dashboard/app.py
from slowapi import Limiter, _rate_limit_exceeded_handler
from slowapi.util import get_remote_address
from slowapi.errors import RateLimitExceeded

limiter = Limiter(key_func=get_remote_address)
app.state.limiter = limiter
app.add_exception_handler(RateLimitExceeded, _rate_limit_exceeded_handler)

@app.post("/auth/login-ui")
@limiter.limit("5/minute")  # Max 5 login attempts per minute
async def login(...):
    ...
```

##### 5. Environment Variable Validation
```python
# raglint/config.py
import os

def validate_security_config():
    """Ensure security-critical env vars are set."""
    required = ["SECRET_KEY", "DATABASE_URL"]
    missing = [var for var in required if not os.getenv(var)]
    
    if missing:
        raise ValueError(f"Missing security env vars: {missing}")
    
    # Check SECRET_KEY strength
    secret = os.getenv("SECRET_KEY", "")
    if len(secret) < 32:
        raise ValueError("SECRET_KEY must be at least 32 characters")
```

##### 6. Create Security Test Suite
```python
# tests/security/test_security.py
import pytest

def test_no_hardcoded_secrets():
    """Ensure no secrets in code."""
    import re
    from pathlib import Path
    
    secret_patterns = [
        r'password\s*=\s*["\'][^"\']+["\']',
        r'api_key\s*=\s*["\'][^"\']+["\']',
        r'secret\s*=\s*["\'][^"\']+["\']',
    ]
    
    for py_file in Path("raglint").rglob("*.py"):
        content = py_file.read_text()
        for pattern in secret_patterns:
            assert not re.search(pattern, content, re.IGNORECASE), \
                f"Potential hardcoded secret in {py_file}"

def test_sql_injection_protection():
    """Ensure all queries use parameterization."""
    # Check that no f-strings or string concat in queries
    pass

def test_xss_protection():
    """Ensure output is escaped."""
    # Check Jinja2 auto-escaping is enabled
    pass
```

##### 7. Document Security Procedures
Create `docs/SECURITY_PROCEDURES.md`:
- Incident response plan
- Vulnerability disclosure timeline
- Security update process
- Contact escalation

**Self-Audit Result**: ~95/100 Security Score

---

## Option 2: Professional Security Audit (Gets to 100/100)

### Why Professional Audit?

A professional audit provides:
- ✅ Third-party validation
- ✅ Penetration testing
- ✅ Compliance certification
- ✅ Detailed vulnerability report
- ✅ Remediation guidance
- ✅ Certification badge

### Recommended Audit Firms

#### Budget-Friendly ($500-2,000)
1. **Cure53** (https://cure53.de/)
   - Specialized in open-source
   - €1,500-2,500 for small projects
   - 2-week turnaround

2. **Trail of Bits** (https://www.trailofbits.com/)
   - Excellent reputation
   - $2,000-5,000 for small projects
   - Focuses on code review

#### Mid-Range ($2,000-5,000)
3. **NCC Group** (https://www.nccgroup.com/)
   - Enterprise-grade
   - $3,000-5,000
   - Comprehensive report

4. **Bishop Fox** (https://bishopfox.com/)
   - Startup-friendly
   - $2,500-4,000
   - Fast turnaround

#### DIY Alternative: Crowdsourced (Free-$1,000)
5. **HackerOne** (https://www.hackerone.com/)
   - Bug bounty platform
   - Pay per vulnerability found
   - Community-driven

6. **Bugcrowd** (https://www.bugcrowd.com/)
   - Similar to HackerOne
   - Good for open-source

### Audit Scope (Recommended)

**In-Scope**:
- Authentication system
- Dashboard application
- API endpoints
- Database queries
- File operations
- LLM integration security

**Out-of-Scope** (to reduce cost):
- CLI tool (lower risk)
- Documentation
- Example code

**Expected Deliverables**:
- Executive summary
- Detailed findings (CVSS scores)
- Remediation recommendations
- Re-test after fixes

**Timeline**: 2-4 weeks

---

## Option 3: Hybrid Approach (Recommended)

### Phase 1: Self-Audit (Week 1-2) - $0
- [ ] Complete all security checklist items above
- [ ] Run automated scans
- [ ] Add security headers
- [ ] Implement rate limiting
- [ ] Create security tests

**Result**: Security score ~95/100

### Phase 2: Bug Bounty (Week 3-4) - $0-500
- [ ] Set up HackerOne or Bugcrowd (free)
- [ ] Offer small bounties ($50-100 per bug)
- [ ] Get community review

**Result**: Community-validated

### Phase 3: Limited Professional Review (Optional) - $500-1,000
- [ ] Hire consultant for specific review
- [ ] Focus on authentication + dashboard
- [ ] 4-8 hours of expert review

**Result**: Security score 100/100

**Total Cost**: $500-1,500 (vs $2,000-5,000 for full audit)

---

## Implementation Steps

### Week 1: Self-Audit
```bash
# Day 1-2: Automated scans
cd /home/yesir/Dokument/RAGlint
mkdir -p security/reports

pip install pip-audit bandit safety slowapi

pip-audit --desc > security/reports/dependency-audit.txt
bandit -r raglint/ -f json -o security/reports/bandit-report.json
safety check --json > security/reports/safety-report.json

# Day 3-4: Add security features
# - Security headers
# - Rate limiting
# - Env validation

# Day 5: Security tests
pytest tests/security/
```

### Week 2: Documentation & Remediation
```bash
# Fix any findings
# Document security procedures
# Update SECURITY.md with audit results
```

### Week 3-4: External Validation
```bash
# Option A: Bug bounty (free)
# Option B: Hire consultant ($500-1,000)
```

---

## Security Audit Checklist

### Pre-Audit
- [ ] All tests passing
- [ ] No known vulnerabilities
- [ ] SECURITY.md up to date
- [ ] Environment secrets documented

### Automated Scans
- [ ] pip-audit (dependencies)
- [ ] bandit (code security)
- [ ] safety (known CVEs)
- [ ] ruff security rules

### Manual Review
- [ ] Authentication flows
- [ ] Authorization checks
- [ ] Input validation
- [ ] Output encoding
- [ ] Secret management

### Hardening
- [ ] Security headers
- [ ] Rate limiting
- [ ] CSRF protection
- [ ] SQL injection prevention
- [ ] XSS prevention

### Documentation
- [ ] Security procedures
- [ ] Incident response plan
- [ ] Vulnerability disclosure
- [ ] Audit reports published

### External Validation
- [ ] Bug bounty program OR
- [ ] Professional audit

---

## Expected Results

### Self-Audit Only
**Security Score**: 95/100  
**Cost**: $0  
**Time**: 1-2 weeks  
**Confidence**: Medium

### Self-Audit + Bug Bounty
**Security Score**: 97/100  
**Cost**: $0-500  
**Time**: 3-4 weeks  
**Confidence**: High

### Self-Audit + Professional Audit
**Security Score**: 100/100  
**Cost**: $2,000-5,000  
**Time**: 4-6 weeks  
**Confidence**: Very High

---

## Recommendation

**For RAGlint**: **Hybrid Approach**

1. **Now**: Complete self-audit (free, 1-2 weeks)
   - Run all automated scans
   - Add security features
   - Create security tests
   - **Result**: 95/100

2. **Later**: Set up bug bounty (free-$500, ongoing)
   - HackerOne or Bugcrowd
   - Community finds issues
   - **Result**: 97/100

3. **Optional**: Professional review ($500-1,000)
   - For enterprise customers
   - Compliance requirements
   - **Result**: 100/100

**Best Value**: Hybrid approach = 97-100/100 for $500-1,500

---

## Files to Create

1. `security/self-audit-checklist.md` - This file
2. `security/automated-scans.sh` - Automation script
3. `tests/security/test_security.py` - Security tests
4. `docs/SECURITY_PROCEDURES.md` - Incident response
5. `security/reports/` - Audit reports directory

---

**Start with self-audit, then decide on external validation based on adoption/budget.**
