HTTP 17

This lab focuses on sending a GET request with a specific parameter that includes a NULL Byte, an essential concept in web security. The objective is to craft a URL-encoded request to the endpoint /pentesterlab, ensuring that the key parameter is set to please followed by a NULL Byte. This challenge highlights the importance of URL-encoding special characters to avoid misinterpretation by the server.

The video guide demonstrates how to perform this task using both a web browser and the command-line tool curl. Initially, the request is constructed in the browser, emphasizing the necessity of using the HTTP protocol to avoid automatic redirection to HTTPS. The NULL Byte is represented as %00 in the URL. Subsequently, the same request is replicated in the terminal using curl, showcasing the versatility and reusability of scripts in different environments.