Introduction to OS Command Injections (2020)

Welcome to this course on OS Command Injections! OS Command Injections are part of the OWASP Prime 10 Internet Utility Security Risks, and as you’ll discover on this course, this danger could find yourself in crucial damages if left unchecked.

We start out by making a protected and licensed setting for us to hold out assaults in. Then, we cowl the core concepts of command injections and research strategies that may be utilized to make use of inclined targets. After that, we go full-on offensive and perform handbook injection assaults along with automated assaults with a software program referred to as Commix.

As quickly as we uncover vulnerabilities, we generate and plant persistent backdoors that could be exploited to create shells, giving us entry to the aim server any time we want.

After effectively attacking and compromising our targets, we take a step once more and speak about defensive controls on the utility layer. We moreover check out exact inclined code and current strategies of fixing that inclined code to forestall injections.

Please remember: Performing these assaults on environments you do not have particular permissions for is prohibited and may get you in problem. That is not the purpose of this course. The purpose is to point out you learn to protected your particular person functions, and it will current the steps wished to create your particular person non-public, protected, and licensed environments to make use of for learning features.


Topics we’re going to cowl collectively:

  1. How one can organize a Kali Linux Digital Machine with out price
  2. How one can configure and create protected & licensed environments using Docker containers inside Kali
  3. A quick command line refresher
  4. An proof of what OS Command injections are and the best way they work
  5. OS Command injection strategies
  6. How one can perform OS Command injections by hand
  7. How one can perform OS Command injections with automated devices (Commix)
  8. How one can defend in direction of injections on the utility layer
  9. How one can uncover vulnerabilities by code
  10. Appropriate coding strategies to forestall OS Command Injections



To know how OS Command injections work and learn to perform them along with defend in direction of them, it is advisable to have:

  • Experience working with internet functions
  • Experience with OS directions (Linux or House home windows)

Suggestion: You might also need to take our free Introduction to Utility Security (AppSec) course to familiarize your self with the concepts of Utility Security, and we’ve got now an SQL Injection course obtainable with out price as properly on Udemy.



My title is Christophe Limpalair, and I’ve helped 1000’s of individuals transfer IT certifications and uncover methods to make use of the cloud for his or her functions. I purchased started in IT on the age of 11 and unintentionally fell into the world of cybersecurity.

As I developed a sturdy curiosity in programming and cloud computing, my focus for the previous couple of years has been teaching 1000’s of individuals in small, medium, and large corporations (along with Fortune 500) on learn to use cloud suppliers (equivalent to Amazon Internet Suppliers) successfully.

I’ve taught certification applications such as a result of the AWS Licensed Developer, AWS Licensed SysOps Administrator, and AWS Licensed DevOps Expert, along with non-certification applications equivalent to Introduction to Utility Security (AppSec), Lambda Deep Dive, Backup Strategies, and others.

Working with specific individual contributors along with managers, I noticed that almost all have been moreover coping with crucial challenges when it acquired right here to cybersecurity.

Digging deeper, it turned clear that there was an absence of teaching for AppSec notably. It’s time to take security into our private fingers and to find methods to assemble safer software program program in order to help make the world a safer place! Be a part of me throughout the course, and we’ll do precisely that!

I welcome you in your journey to learning further about OS Command injections, and I stay up for being your instructor!