I just wanted to thank you guys for the hints. This is my very first attempt of solving this sort of challenges and every is new and confusing to me.
I’ve currently managed to use the credentials, tomorrow I will continue exploring my options.
I truly think that I won’t be able to make and upload an exploit (never done that before) but I’m learning a lot, especially not to give up and keep trying everything I can.
I’ll try to keep an eye here to try to return to the community the help I’ve been granted!