Security Analysis for TypeScript/Node.js Applications

Execute comprehensive security review for TypeScript/Node.js applications. Analyze vulnerabilities, dependencies, security configurations, and best practices specific to the TypeScript ecosystem.

Security Analysis for TypeScript/Node.js Applications

Main Analysis Areas

Security Review Scope: $ARGUMENTS

1. OWASP Top 10 Vulnerability Analysis for TypeScript

Analyze the following vulnerability categories in TypeScript context:

A01: Broken Access Control

• Verify authentication middleware implementations (Express.js, NestJS guards)
• Analyze JWT token validation and refresh mechanisms
• Check role-based access control (RBAC) patterns
• Verify API route protection in Next.js API routes
• Review GraphQL resolvers authorization

A02: Cryptographic Failures

• Analyze crypto library usage (Node.js crypto, bcryptjs)
• Verify password hashing implementations
• Check SSL/TLS configurations for Node.js servers
• Review secrets management (dotenv, config libraries)
• Validate encryption/decryption patterns

A03: Injection

• SQL Injection in TypeORM/Prisma/Sequelize
• NoSQL Injection in MongoDB/Mongoose
• Command Injection in child_process.exec/execSync
• Template Injection in Handlebars/EJS/JSX
• XSS in React/Vue/Angular components

A04: Insecure Design

• Missing security middleware (Helmet, CORS)
• Insecure architectural patterns in microservices
• Lack of input validation strategy
• Insecure API design patterns
• Missing rate limiting configurations

A05: Security Misconfiguration

• Insecure Express.js/NestJS configurations
• Exposed development endpoints
• CORS misconfigurations
• Insecure default settings in production
• Missing security headers

A06: Vulnerable and Outdated Components

• npm/yarn dependency scanning (npm audit, yarn audit)
• Libraries with known CVEs
• Outdated Node.js/TypeScript versions
• Vulnerable transitive dependencies
• Malicious package detection

A07: Identification and Authentication Failures

• Weak password policies in authentication systems
• Insecure session management
• Improper JWT implementation
• Missing MFA implementation
• Insecure OAuth flows

A08: Software and Data Integrity Failures

• Missing package integrity verification (npm package-lock.json)
• Insecure CI/CD pipeline configurations
• Lack of code signing for critical operations
• Deserialization vulnerabilities (JSON.parse)
• Missing checksum validation

A09: Security Logging and Monitoring Failures

• Inadequate security logging (Winston, Pino)
• Missing audit trail implementation
• Absent security event monitoring
• Insufficient error handling that leaks information
• Missing intrusion detection

A10: Server-Side Request Forgery (SSRF)

• Analyze HTTP calls (axios, node-fetch)
• Missing URL validation in API requests
• Insecure proxy configurations
• File inclusion attacks via require/import
• Open redirect vulnerabilities

2. Framework-Specific Security Analysis

Next.js Security Analysis

• API route security configurations
• Server-side rendering (SSR) security
• Static site generation (SSG) security
• Middleware security implementations
• NextAuth.js configuration review

NestJS Security Analysis

• Guard implementations (AuthGuard, RolesGuard)
• Passport strategy configurations
• Interceptor security patterns
• Exception filter security
• Module dependency security

Express.js Security Analysis

• Middleware security configurations
• Route protection patterns
• Error handling security
• Session management
• Helmet/CORS implementations

3. Dependencies and Libraries Analysis

npm/yarn Dependency Analysis

# Run vulnerability scan
npm audit
npm audit fix
yarn audit
yarn audit --json

Critical Libraries to Review

• Express.js/NestJS versions
• React/Vue/Angular frameworks
• Database libraries (TypeORM, Prisma, Mongoose)
• Authentication libraries (Passport.js, NextAuth)
• HTTP clients (axios, node-fetch)
• Utility libraries (lodash, moment.js)

Package.json Security Review

• Analyze dependency versions
• Check for malicious packages
• Review package scripts security
• Validate package integrity
• Check for dependency confusion

4. Database Security

TypeORM/Prisma Security

• SQL injection prevention
• Query builder security
• Database connection security
• Migration security
• Entity access control

MongoDB/Mongoose Security

• NoSQL injection prevention
• Schema validation security
• Connection security
• Index security considerations

Database Connection Security

• Connection pool configuration
• Database credential management
• SSL/TLS database connections
• Environment variable security

5. API Security

REST API Security

• Input validation (Joi, Zod, class-validator)
• Rate limiting implementation (express-rate-limit)
• API authentication patterns
• Response security headers
• OpenAPI/Swagger security definitions

GraphQL Security

• Query depth limiting
• Query complexity analysis
• Resolver authorization
• Introspection security
• Subscription security

WebSocket Security

• Socket.IO authentication
• Message validation
• Rate limiting for connections
• CORS for WebSocket connections

6. Frontend Security

React/Vue/Angular Security

• XSS prevention in components
• CSRF token handling
• Content Security Policy (CSP)
• Secure routing configurations
• State management security

SPA Security Considerations

• Token storage strategies
• Authentication flow security
• API communication security
• Browser storage security
• Third-party library security

7. Containerization and Cloud Security

Docker Security

• Container base image security
• Multi-stage build security
• Secrets management in containers
• Dockerfile security best practices

Cloud Platform Security

• Vercel/Netlify security configurations
• AWS Lambda/Cloud security
• Azure Functions security
• Google Cloud Functions security

8. Security Testing

Unit Testing for Security

// Authentication middleware test
describe('AuthMiddleware', () => {
  it('should reject requests without valid token', () => {
    const mockRequest = { headers: {} };
    const mockResponse = { status: jest.fn(), json: jest.fn() };
    const mockNext = jest.fn();

    authMiddleware(mockRequest, mockResponse, mockNext);

    expect(mockResponse.status).toHaveBeenCalledWith(401);
  });
});

Integration Security Testing

• Jest security testing patterns
• Supertest for API security testing
• Cypress end-to-end security tests
• OWASP ZAP integration

Static Analysis for TypeScript

• ESLint security rules
• TypeScript compiler security checks
• SonarJS security analysis
• CodeQL for TypeScript

9. Configuration Security

Environment Variables Security

// Secure configuration loading
import { config } from 'dotenv';
import Joi from 'joi';

const configSchema = Joi.object({
  PORT: Joi.number().default(3000),
  DB_HOST: Joi.string().required(),
  JWT_SECRET: Joi.string().min(32).required(),
}).unknown();

const { error, value } = configSchema.validate(process.env);
if (error) throw new Error('Config validation error');

TypeScript Configuration Security

• Strict TypeScript compiler options
• ESLint security configuration
• Prettier security considerations
• Webpack/Vite security settings

10. Code Quality Security Patterns

Secure Coding Practices

• Input validation and sanitization
• Type safety for security
• Error handling without information disclosure
• Secure async/await patterns
• Memory leak prevention

Dependency Injection Security

• Secure service instantiation
• Configuration injection patterns
• Scoped dependencies security
• Module dependency validation

11. Performance-Related Security

DoS Prevention

• Request timeout configurations
• Memory usage monitoring
• CPU usage limits
• Connection pool limiting
• Rate limiting per user/IP

Resource Security

• File upload security
• Memory allocation limits
• Process management security
• Event loop security considerations

12. Monitoring and Logging Security

Security Monitoring

// Security event logging
import { Logger } from 'pino';

const logger = new Logger({
  level: 'info',
  redact: ['req.headers.authorization', 'req.body.password']
});

// Log security events
logger.info({
  event: 'login_attempt',
  userId: user.id,
  ip: req.ip,
  timestamp: new Date().toISOString()
});

Audit Trail Implementation

• User action logging
• Data access logging
• API call auditing
• Failed authentication attempts

13. Reporting and Recommendations

Critical Security Issues (P0)

• Remote code execution vulnerabilities
• Authentication bypass vulnerabilities
• Data exposure incidents
• Injection vulnerabilities
• SSRF vulnerabilities

High Priority Security Issues (P1)

• Outdated dependencies with CVEs
• Insecure configurations
• Missing security headers
• Weak authentication mechanisms
• XSS vulnerabilities

Medium Priority Security Issues (P2)

• Logging/monitoring gaps
• Insufficient input validation
• Access control improvements
• Code quality security improvements

Low Priority Security Issues (P3)

• Security documentation updates
• Code style security improvements
• Additional security testing
• Security training recommendations

14. Tools and Automation

Static Analysis Tools

• ESLint with security plugins
• SonarJS security analysis
• CodeQL for TypeScript
• Semgrep for TypeScript

Dynamic Testing Tools

• OWASP ZAP
• Burp Suite
• Postman security testing
• OWASP Nettacker

Dependency Scanning Tools

• npm audit
• Snyk
• GitHub Dependabot
• OWASP Dependency Check

CI/CD Security Integration

# GitHub Actions security scan example
- name: Run npm audit
  run: npm audit --audit-level high
- name: Run Snyk security scan
  uses: snyk/actions/node@master
- name: Run ESLint security rules
  run: npx eslint . --ext .ts,.tsx --config .eslintrc.security.js

Execution Steps

1. Setup Analysis Environment

   • Prepare codebase for review
   • Configure security scanning tools
   • Set up reporting framework

2. Automated Security Scanning

   • Run npm audit for vulnerabilities
   • Execute ESLint security rules
   • Perform static analysis with Semgrep
   • Scan dependencies with Snyk

3. Manual Security Review

   • Review authentication/authorization logic
   • Analyze input validation patterns
   • Check API endpoint security
   • Review database security configurations

4. Framework-Specific Analysis

   • Review Next.js security configurations
   • Analyze NestJS guard implementations
   • Check Express.js middleware security
   • Review frontend security patterns

5. Generate Security Report

   • Consolidate findings from all tools
   • Prioritize vulnerabilities by risk
   • Provide actionable remediation steps
   • Create implementation timeline

6. Security Recommendations

   • Framework-specific security improvements
   • TypeScript security best practices
   • Configuration security enhancements
   • Monitoring and alerting setup

Target: $ARGUMENTS

Execution Instructions

Agent Selection: To execute this TypeScript security review, use the following agent with fallback:

• Primary: ts-security-expert
• If not available: Use developer-kit:ts-security-expert or fallback to general-purpose agent with security expertise