Vulnerability Scanning

Vulnerability Scanning

Automate security vulnerability detection across code, dependencies, and containers.

Dependency Scanning

# npm audit
npm audit --audit-level=high

# Snyk
snyk test --severity-threshold=high

# Safety (Python)
safety check --full-report

Container Scanning (Trivy)

# Scan container image
trivy image myapp:latest --severity HIGH,CRITICAL

# Scan filesystem
trivy fs --scanners vuln,secret .

GitHub Actions Integration

name: Security Scan

on: [push, pull_request]

jobs:
  security:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Run Trivy vulnerability scanner
        uses: aquasecurity/trivy-action@master
        with:
          scan-type: 'fs'
          severity: 'CRITICAL,HIGH'
          exit-code: '1'

      - name: Run Snyk
        uses: snyk/actions/node@master
        env:
          SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
        with:
          args: --severity-threshold=high

      - name: npm audit
        run: npm audit --audit-level=high

Code Analysis (Bandit for Python)

bandit -r src/ -ll -ii

Node.js Scanner

const { execSync } = require('child_process');

function runSecurityScan() {
  const results = {
    npm: JSON.parse(execSync('npm audit --json').toString()),
    trivy: JSON.parse(execSync('trivy fs --format json .').toString())
  };

  const critical = results.npm.metadata?.vulnerabilities?.critical || 0;
  if (critical > 0) {
    console.error(`Found ${critical} critical vulnerabilities`);
    process.exit(1);
  }
}

Best Practices

• Integrate scanning in CI/CD pipeline
• Fail builds on high/critical findings
• Scan dependencies and containers
• Track vulnerabilities over time
• Document accepted false positives

Tools

• Trivy (containers, filesystem)
• Snyk (dependencies, code)
• npm audit / yarn audit
• Bandit (Python)
• OWASP Dependency-Check

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