Shell Injection Attack
Shell Injection Attacks are a type of computer attack where an attacker takes advantage of a vulnerability in a program to execute commands on the computer’s operating system. These attacks can be carried out on any program that uses shell commands to carry out tasks. This includes web applications, command line tools, and even scripts.
The basic idea behind a shell injection attack is to inject commands into the program that the program will execute as if they were part of the original code. These injected commands can do things like copy sensitive data, delete files, or even take over the entire computer.
One common way that attackers accomplish shell injection attacks is by submitting specially crafted input to a web application that the application does not properly sanitize. The attacker can then submit commands that the application will execute, giving the attacker control of the victim machine.
The best defense against shell injection attacks is to never trust input from untrusted sources. Every program that takes input from a user or external source should validate that input and sanitize it before using it. This includes checking for improper characters and limiting the length of input.
So, it is very important to be careful about what commands you execute and to make sure that you are getting your commands from a trusted source. With these precautions, you can protect yourself from shell injection attacks and keep your computer and data safe.