Command Injection

This course introduces command injection vulnerabilities, their exploitation and possible mitigations.
40 minutes 7 videos

Course description

Command injection vulnerabilities take advantage of the fact that instructions and data are often mixed within programs. This course demonstrates how command injection vulnerabilities can be exploited by an attacker, what to look out for and how to write code that is immune to this type of attack.


Command Injection Demo

Video - 00:08:00

This video demonstrates exploitation of a command injection vulnerability.
Command Injection Mitigations

Video - 00:10:00

This video describes mitigations for command injection vulnerabilities.
Command Injection Case Study

Video - 00:05:00

This video describes a case study of an application vulnerable to command injection.
Command Injection Exploitation

Video - 00:04:00

This video describes how command injection vulnerabilities can be exploited by an attacker.
Command Injection

Video - 00:05:00

This video describes how command injection vulnerabilities can make an application vulnerable to attack.
Introduction to Data

Video - 00:06:00

This video covers the fundamentals of how data and code are handled in many execution environments.
Introduction to Command Injection

Video - 00:02:00

This video provides an introduction to the command injection course.

Meet the author

Howard Poston is a copywriter, author, and course developer with experience in cybersecurity and blockchain security, cryptography, and malware analysis. He has an MS in Cyber Operations, a decade of experience in cybersecurity, and over five years of experience as a freelance consultant providing training and content creation for cyber and blockchain security. He is also the creator of over a dozen cybersecurity courses, has authored two books, and has spoken at numerous cybersecurity conferences. He can be reached by email at or via his website at

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