Code injection

Code injection is a computer security technique that involves the insertion of malicious or unauthorized code fragments into a program, application, or system to exploit vulnerabilities and achieve undesired behavior.

This type of attack is a serious problem in computer security and can have significant consequences if not properly detected and mitigated.

There are several types of code injection; the most common are covered next.

Application logic vulnerabilities or business logic flaws

From my perspective, I consider this chapter to be of outstanding importance for all vulnerability hunters. It is precisely this type of vulnerability that makes the difference between a conventional application security assessment and a bounty-hunting strategy.

Application logic vulnerabilities represent programming flaws, often difficult to detect, that originate due to logical decisions implemented during development. Consequently, it is essential to acquire in-depth...