Essential Node.js Security for Express Web Applications

Serverless is taking the cloud native world by storm. This new approach promises extraordinary value, from increased developer productivity to dramatic cost savings. In some aspects, serverless also boasts significant security advantages compared to the server model. But as this practical report explains, securing serverless still requires diligence from the developers and application security professionals involved in the process. Guy Podjarny and Liran Tal from Snyk examine the significant benefits that serverless brings to application security, as well as the considerable risks involved when you configure a serverless system. You’ll also learn a platform-agnostic security model known as CLAD that will help you address Code vulnerabilities, Library vulnerabilities, Access and permissions, and Data security. This report helps you: Understand what serverless is and how this model evolved from cloud native processes Explore the three primary areas where serverless improves security Learn how the CLAD model provides four categories to help you home in on specific security issues Follow a detailed example that demonstrates how poor security manifests in real-world serverless applications Table of Contents Foreword About The Author Liran Tal About The Reviewers Danny Grander Tim Kadlec Cody B. Daig Zach Sosana About The Book Requirements Source Code HTTP Headers Security Security Headers Caveats Node.js Packages for HTTP Security Headers Strict Transport Security X-Frame-Options Content-Security-Policy Other HTTP headers Summary Secure Session Management Session Security Risks Session Security in Node.js and ExpressJS Summary Hardening ExpressJS Security Through Obscurity Brute-Force Protection Advanced Functionality Limiting body-parser middleware Summary Cross-Site Request Forgery (CSRF) The Risk The Solution Summary Cross-Site Scripting (XSS) The Risk The Solution Summary Secure Code Guidelines Node.js Releases and APIs Input Validation Output Encoding Regular Expressions Strict Mode and Eval Cryptographic Practices User Process Privileges Summary Injection Flaws NoSQL Injections NoSQL SSJS Injections Blind NoSQL Injections OS Command Injection Summary Secure Dependency Management Evaluating Dependencies Dependency Tracking NPM Shrinkwrap Yarn as npm Package Management Summary