Learning Path

JavaScript Security

Learn JavaScript-related attacks and how to build safer JavaScript applications.
10 hours, 33 minutes
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What you will learn

This learning path will help you understand the diverse threats and protections of the JavaScript world. We will start by covering the basics, as misunderstanding them often leads developers to write less safe code. Then, we will discuss authentication, XSS and CSRF. We will also spend a bit of time understanding regular expressions through the prism of security. We will also cover serverless security and what a JavaScript developer should do to keep their own desktop machine safe while using development tools.
 

Syllabus

Secure Coding - JavaScript

Lab - 00:30:00
This lab covers multiple secure coding errors commonly found in JavaScript, including DOM rewrites and the use of the eval() statement.
JavaScript Security Skill Assessment

Assessment - 54 questions
JavaScript Security Project

Course - 02:20:00
In the first four challenges, you will find vulnerabilities and exploit them. In the next five challenges, you will fix the vulnerabilities.
Secure JavaScript Programming overview

Course - 00:54:00
In this course, we will cover some base concepts of JavaScript and its runtime environments. We will start by doing a few refreshers on the languages and its history; then we will look at an overview of web browsers and Node.js as JavaScript runtimes.
Authentication

Course - 00:50:00
Here, we will go through refreshers on authentication and a bit of cryptography. We will cover the case of cookies and non-cookies-based front-end authentication. We will also cover best practices in term of front-end identity management.
XSS and JavaScript remote code executions

Course - 01:34:00
XSS attacks are arguably the main threat against JavaScript web applications. In this course, we will cover them in detail and leave no stone unturned as we check everything about reflected, stored, DOM-based XSS. We will extensively cover CSP and trusted types.
CSRF and browser security

Course - 00:37:00
CSRF (cross-site request forgery) attacks can be disastrous for a website. In this course, we will learn exactly what they are and take a back-end (examples with Node.js) and front-end approach against them. Browsers have multiple security mechanisms to block certain attacks, and any web developer should have an idea of what these mechanisms are and how to use them.
Regular expressions

Course - 00:34:00
Regular expressions are one of the most powerful, yet dangerous parts of JavaScript. In this course, we will dig into them to understand what risks they can bring and how to mitigate them.
Prototype pollution

Course - 00:35:00
Prototype pollution is a JavaScript-specific kind of attacks that can lead to multiple outcomes, including SQL injections (in back-end code), Denial of Service or even arbitrary code execution. In this course, we will go through real-life examples of such attacks and learn how to protect against them.
Ecosystem modules (npm) and supply chain

Course - 01:13:00
npm is the biggest software ecosystem in history. Navigating it can be complicated. In this course, we will see everything we need to know to find and assess packages. We will even see what to do if one of the packages we use is flagged as vulnerable.
Serverless JavaScript

Course - 01:05:00
All major cloud providers now provide serverless services. But what are the security implications of using them? In this course, we will review the security best practices of a safe serverless project.
Web developer desktop security

Course - 00:11:00
Building web applications can open some parts of your own workstation to attacks. In this short course, we will go through a few "gotchas" anyone building web applications should know about.

Meet the author

Vladimir is a core Node.js collaborator and is involved in most security-related topics of the Node.js project. He has worked for seven years as an Application Security expert at Sqreen and as a Staff Engineer at Datadog. He is now building a new company.

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The details

Learning path insights

How to claim CPEs

Should you complete this learning path, you’ll be able to download a certificate of completion. Use this to claim your CPEs or CPUs.

Associated NICE Work Roles

All Infosec training maps directly to the NICE Workforce Framework for Cybersecurity to guide you from beginner to expert across 52 Work Roles.

  • All-Source Analyst
  • Mission Assessment Specialist
  • Exploitation Analyst

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