Security Scanner Hook

The Security Scanner Hook provides comprehensive automated security analysis with real-time vulnerability detection and remediation suggestions.

## Core Security Features

### Vulnerability Scanning
- **Static Code Analysis** - Detect security flaws in source code
- **Dependency Scanning** - Check for vulnerable dependencies
- **Container Scanning** - Analyze Docker images for security issues
- **Infrastructure Scanning** - Validate cloud and infrastructure configurations
- **Secrets Detection** - Find hardcoded secrets and credentials

### Compliance Checking
- **OWASP Top 10** - Validate against common web vulnerabilities
- **CIS Benchmarks** - Check against security configuration standards
- **PCI DSS** - Payment card industry compliance validation
- **SOC 2** - Service organization control requirements
- **GDPR** - Data privacy and protection compliance

### Security Tools Integration
- **SAST Tools**: SonarQube, CodeQL, Semgrep, Bandit
- **DAST Tools**: OWASP ZAP, Burp Suite, Nikto
- **SCA Tools**: Snyk, WhiteSource, Black Duck
- **Container Security**: Trivy, Clair, Aqua Security
- **Cloud Security**: Prowler, Scout Suite, CloudSploit

## Configuration

### Basic Setup
```json
{
  "securityScanner": {
    "enabled": true,
    "scanLevel": "medium",
    "blockOnCritical": true,
    "blockOnHigh": false,
    "autoFix": false
  },
  "triggers": {
    "onCommit": true,
    "onPullRequest": true,
    "onDeploy": true,
    "scheduled": "daily"
  },
  "scanTypes": {
    "static": true,
    "dependencies": true,
    "secrets": true,
    "containers": true,
    "infrastructure": false
  }
}
```

### Advanced Configuration
```json
{
  "securityScanner": {
    "tools": {
      "semgrep": {
        "enabled": true,
        "configPath": ".semgrep.yml",
        "rules": ["auto", "security", "owasp-top-10"]
      },
      "snyk": {
        "enabled": true,
        "severity": ["high", "critical"],
        "ignoreFile": ".snyk"
      },
      "trivy": {
        "enabled": true,
        "scanners": ["vuln", "secret", "config"]
      }
    },
    "reporting": {
      "format": ["json", "sarif", "html"],
      "outputDir": "security-reports",
      "uploadToDefectDojo": true
    },
    "compliance": {
      "frameworks": ["owasp-top-10", "cis", "pci-dss"],
      "severity": "medium",
      "generateReport": true
    }
  }
}
```

## Security Scan Types

### Static Application Security Testing (SAST)
```javascript
// Example security issues detected

// SQL Injection vulnerability
function getUserData(userId) {
  // ❌ Vulnerable code
  const query = `SELECT * FROM users WHERE id = ${userId}`;
  return database.query(query);
  
  // ✅ Secure alternative
  const query = 'SELECT * FROM users WHERE id = ?';
  return database.query(query, [userId]);
}

// XSS vulnerability
function renderUserContent(content) {
  // ❌ Vulnerable code
  document.innerHTML = content;
  
  // ✅ Secure alternative
  document.textContent = content;
  // or use a sanitization library
  document.innerHTML = DOMPurify.sanitize(content);
}

// Insecure cryptography
function hashPassword(password) {
  // ❌ Vulnerable code
  return crypto.createHash('md5').update(password).digest('hex');
  
  // ✅ Secure alternative
  const salt = crypto.randomBytes(16);
  return crypto.pbkdf2Sync(password, salt, 100000, 64, 'sha512');
}
```

### Dependency Vulnerability Scanning
```json
// Example vulnerability report
{
  "vulnerabilities": [
    {
      "package": "lodash",
      "version": "4.17.15",
      "severity": "high",
      "cve": "CVE-2020-8203",
      "title": "Prototype Pollution",
      "description": "lodash is vulnerable to prototype pollution",
      "patchedVersions": [">=4.17.19"],
      "recommendation": "Upgrade to lodash@4.17.19 or later"
    },
    {
      "package": "express",
      "version": "4.16.0",
      "severity": "medium",
      "cve": "CVE-2022-24999",
      "title": "qs Prototype Pollution",
      "description": "Express.js is vulnerable via qs dependency",
      "patchedVersions": [">=4.17.3"],
      "recommendation": "Upgrade to express@4.17.3 or later"
    }
  ]
}
```

### Secrets Detection
```bash
# Example secrets detected in code

# ❌ Hardcoded API keys
const API_KEY = "sk-1234567890abcdef";
const DATABASE_URL = "mongodb://admin:password123@localhost:27017/db";

# ❌ AWS credentials
AWS_ACCESS_KEY_ID=AKIAIOSFODNN7EXAMPLE
AWS_SECRET_ACCESS_KEY=wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY

# ❌ JWT secrets
JWT_SECRET="my-super-secret-key-123"

# ✅ Secure alternatives
const API_KEY = process.env.API_KEY;
const DATABASE_URL = process.env.DATABASE_URL;
const JWT_SECRET = process.env.JWT_SECRET;
```

### Container Security Scanning
```dockerfile
# Dockerfile security issues detected

# ❌ Security issues
FROM ubuntu:latest
RUN apt-get update
USER root
EXPOSE 22
COPY --chown=root:root app.js /app/

# ✅ Secure version
FROM ubuntu:22.04
RUN apt-get update && apt-get upgrade -y && apt-get clean
RUN useradd -m appuser
USER appuser
EXPOSE 3000
COPY --chown=appuser:appuser app.js /app/
HEALTHCHECK --interval=30s --timeout=3s CMD curl -f http://localhost:3000/health
```

## Security Scanning Workflow

### Pre-commit Scanning
```bash
#!/bin/bash
# .git/hooks/pre-commit

echo "🔒 Running security scans..."

# Secrets detection
echo "Scanning for secrets..."
truffleHog --regex --entropy=False .
if [ $? -ne 0 ]; then
  echo "❌ Secrets detected! Please remove before committing."
  exit 1
fi

# Static analysis
echo "Running static security analysis..."
semgrep --config=auto --error
if [ $? -ne 0 ]; then
  echo "❌ Security vulnerabilities detected!"
  exit 1
fi

# Dependency check
echo "Checking dependencies..."
npm audit --audit-level=high
if [ $? -ne 0 ]; then
  echo "❌ High-severity vulnerabilities in dependencies!"
  echo "Run 'npm audit fix' to resolve."
  exit 1
fi

echo "✅ Security scans passed!"
```

### CI/CD Pipeline Integration
```yaml
# GitHub Actions example
name: Security Scan

on:
  push:
    branches: [ main, develop ]
  pull_request:
    branches: [ main ]

jobs:
  security-scan:
    runs-on: ubuntu-latest
    
    steps:
    - uses: actions/checkout@v3
    
    - name: Run Semgrep
      uses: returntocorp/semgrep-action@v1
      with:
        config: auto
        
    - name: Run Snyk
      uses: snyk/actions/node@master
      env:
        SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
      with:
        args: --severity-threshold=high
        
    - name: Run Trivy
      uses: aquasecurity/trivy-action@master
      with:
        scan-type: 'fs'
        scan-ref: '.'
        format: 'sarif'
        output: 'trivy-results.sarif'
        
    - name: Upload results to GitHub Security
      uses: github/codeql-action/upload-sarif@v2
      with:
        sarif_file: 'trivy-results.sarif'
```

## Automated Remediation

### Dependency Updates
```javascript
// Automated dependency update script
const { exec } = require('child_process');
const semver = require('semver');

class SecurityAutoFixer {
  async fixVulnerabilities() {
    const auditResult = await this.runAudit();
    const fixableVulns = this.getFixableVulnerabilities(auditResult);
    
    for (const vuln of fixableVulns) {
      if (vuln.severity === 'critical' || vuln.severity === 'high') {
        await this.applyFix(vuln);
      }
    }
  }
  
  async applyFix(vulnerability) {
    const { package, currentVersion, patchedVersion } = vulnerability;
    
    // Check if update is safe (no breaking changes)
    if (semver.satisfies(patchedVersion, `^${currentVersion}`)) {
      console.log(`Updating ${package} from ${currentVersion} to ${patchedVersion}`);
      await this.updatePackage(package, patchedVersion);
    } else {
      console.log(`Manual review required for ${package} update`);
      await this.createPullRequest(vulnerability);
    }
  }
}
```

### Code Fixes
```javascript
// Automated code security fixes
const fixes = {
  // Fix SQL injection
  'sql-injection': (code) => {
    return code.replace(
      /database\.query\(`(.+?)\$\{(.+?)\}`\)/g,
      "database.query('$1?', [$2])"
    );
  },
  
  // Fix XSS vulnerabilities
  'xss-vulnerability': (code) => {
    return code.replace(
      /\.innerHTML\s*=\s*(.+)/g,
      '.textContent = $1'
    );
  },
  
  // Fix insecure random
  'insecure-random': (code) => {
    return code.replace(
      /Math\.random\(\)/g,
      'crypto.randomBytes(4).readUInt32BE(0) / 0x100000000'
    );
  }
};
```

## Reporting & Monitoring

### Security Dashboard
```javascript
const securityMetrics = {
  vulnerabilities: {
    critical: 0,
    high: 2,
    medium: 5,
    low: 12
  },
  compliance: {
    'owasp-top-10': 'passing',
    'cis-benchmarks': 'warning',
    'pci-dss': 'passing'
  },
  trends: {
    vulnerabilitiesFixed: 15,
    newVulnerabilities: 3,
    securityScore: 8.7
  }
};
```

### Integration with Security Tools
```javascript
// DefectDojo integration
const defectDojoClient = {
  async uploadResults(scanResults) {
    const formData = new FormData();
    formData.append('file', scanResults);
    formData.append('scan_type', 'Semgrep JSON Report');
    formData.append('engagement', this.engagementId);
    
    return fetch(`${this.baseUrl}/api/v2/import-scan/`, {
      method: 'POST',
      headers: {
        'Authorization': `Token ${this.apiKey}`
      },
      body: formData
    });
  }
};

// Slack notifications
const securityAlert = {
  channel: '#security-alerts',
  text: '🚨 Critical Security Vulnerability Detected',
  blocks: [
    {
      type: 'section',
      text: {
        type: 'mrkdwn',
        text: '*SQL Injection vulnerability found in user authentication*'
      }
    },
    {
      type: 'section',
      fields: [
        {
          type: 'mrkdwn',
          text: '*Severity:* Critical'
        },
        {
          type: 'mrkdwn',
          text: '*File:* auth/login.js:42'
        }
      ]
    },
    {
      type: 'actions',
      elements: [
        {
          type: 'button',
          text: {
            type: 'plain_text',
            text: 'View Details'
          },
          url: 'https://security-dashboard.example.com/vuln/123'
        }
      ]
    }
  ]
};
```