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Web Application Security: Understanding HTTP Security Headers

Gain insights into HTTP security headers, learn their risks, explore solutions, and discover how to implement them using Helmet for enhanced web application security.

Beginner

18 Lessons

1h 10min

Certificate of Completion

Gain insights into HTTP security headers, learn their risks, explore solutions, and discover how to implement them using Helmet for enhanced web application security.

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Explanations

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This course includes

8 Quizzes

Course Overview

What You'll Learn

Course Content

Course Overview

This course teaches you hands-on practical use of HTTP security headers as browser security controls to help secure web applications. For each HTTP security header that can enhance your web application security, you'll learn what is the overall risk of not implementing it, and what does a proposed solution help with. Finally, you'll learn how to implement and configure the security header with Helmet, a popular and well maintained Node.js package on npm.

What You'll Learn

Establishing secure web applications using HTTP security headers

Understanding Content Security Policy

Configuring Node.js web applications securely

Learning how to test and monitor for security headers and vulnerable JavaScript libraries

Roadmap for next steps in web controls and security headers spec

Establishing secure web applications using HTTP security headers

Course Content

Introduction

3 Lessons

Get familiar with HTTP security headers, browser controls, essential tools, and the Helmet package.

Requirements

Headers as Browser Security Controls

Helmet - a Node.js Package for HTTP Security Headers

HTTP Security Headers

6 Lessons

Discover the logic behind HTTP security headers, their implementations, and their roles in web protection.

HTTP Strict Transport Security

X Frame Options

Content Security Policy

X XSS Protection

X Content Type Options

Referer and Referrer Policy

Testing for Security Headers

5 Lessons

Work your way through testing web application security headers with WebPageTest, Lighthouse, and Check My Headers.

The State of HTTP Security

WebPageTest

Chrome's Lighthouse

Check My Headers command-line application

Summary

What's Next?

4 Lessons

Grasp the fundamentals of establishing CSPs, monitoring security, evolving headers, and additional learning resources.

Establish a CSP and Security Headers standard

Monitor your web application

Other browser security headers and controls

Educational resources

Course Author

Liran Tal

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