Building Secure Web Applications
Programming

Course Overview


This 3-day course provides developers with essential skills and best practices for designing and developing secure web applications. Participants will learn how to identify common web vulnerabilities, implement secure authentication and session management, and protect against real-world threats like XSS, CSRF, SQL injection, and more. The course emphasizes secure coding principles, modern web security standards, and compliance considerations.


Duration: 3 Days

Format: Instructor-led, hands-on labs, threat modeling exercises, real-world attack simulations, and secure coding workshops

man holding tablet computer
man holding tablet computer

Description

Course Outline


? Day 1: Security Foundations and Threat Awareness

Session 1: Introduction to Web Security


  • The importance of security in web development
  • Threat landscape: OWASP Top 10 overview
  • Risk assessment and threat modeling basics


Session 2: Common Vulnerabilities and Exploits


  • SQL Injection and NoSQL Injection
  • Cross-Site Scripting (XSS): stored, reflected, and DOM-based
  • Cross-Site Request Forgery (CSRF) attacks


Session 3: Secure Coding Practices


  • Input validation and sanitization techniques
  • Output encoding and escaping strategies
  • Safe handling of file uploads and query parameters


Lab Activities:


  • Perform vulnerability scans on a sample web app
  • Simulate SQL injection and XSS attacks in a test environment
  • Refactor insecure code using proper sanitization and escaping


? Day 2: Authentication, Authorization, and Session Management

Session 1: Secure Authentication Mechanisms


  • Password storage best practices (bcrypt, Argon2)
  • Multi-factor authentication (MFA) implementation
  • OAuth 2.0 and OpenID Connect fundamentals


Session 2: Authorization and Access Control


  • Role-based and attribute-based access control
  • Principle of least privilege and secure API access
  • Preventing horizontal and vertical privilege escalation


Session 3: Session Management and Tokens


  • Secure cookie handling and same-site policies
  • JWT (JSON Web Tokens): usage and risks
  • Preventing session fixation and hijacking


Lab Activities:


  • Implement secure user authentication and token-based access
  • Configure access controls and role validation in routes
  • Mitigate session-related attacks with secure cookies and token refresh


? Day 3: Secure Architecture, HTTPS, and Deployment

Session 1: Secure Application Architecture


  • Defense-in-depth and layered security
  • Secure API design and rate limiting
  • Microservices vs monolith security considerations


Session 2: HTTPS, CORS, and Secure Headers


  • TLS/SSL certificates and HTTPS best practices
  • Configuring CORS securely
  • Using HTTP security headers (HSTS, CSP, X-Frame-Options)


Session 3: Monitoring, Logging, and Compliance


  • Logging security events and avoiding sensitive data exposure
  • Real-time monitoring tools and alerts
  • Security in DevOps: secrets management and CI/CD


Lab Activities:


  • Harden an app using secure HTTP headers
  • Set up HTTPS and test for downgrade attacks
  • Implement basic audit logging and secret scanning in a CI/CD pipeline