PRET VS Ciphey

So i decided to tinker a bit before spending a shitload of money into toners or new printers, i'm using this tool to try access and issuing commands to the printer, the connection gets succesfully enstablished. After that i can issue commands in three different languages: PS and PJL doesn't seem to do anything, with PCL at least i see a Device: Unknown printer but all the commands i issue seem to simply not be taken in consideration from the printer, in any of the 3 languages, giving a Command execution failed (timed out) error.

my friend that owns a coffee shop asked me to poke around on his network to look for vulnerabilities in exchange for some free coffees and i saw that they had 9100 open, wasn't familiar with it so played around and found out about PRET which gave me access to his HP printer, with transversal you can gain access to the file system etc and from what i read you can open a root shell on another port, would the scope be limited to the printer, or can the printer be used as a vector to gain access to other systems connecting to said printer?

Preferable you don't want it accessible from the internet at all. Using stuff like the Printer Exploitation Toolkit (PRET), people can get up to some nasty stuff on a public accessible (insecure) printer : https://github.com/RUB-NDS/PRET

You'll love PRET then. It can also brick printers and do all kinds of other fun stuff with them.

Printer exploit framework: https://github.com/RUB-NDS/PRET

Printer Exploitation Toolkit (PRET) - Tool for printer security testing capable of IP and USB connectivity, fuzzing, and exploitation of PostScript, PJL, and PCL printer language features.

I also discovered Ciphey. Neat little tool indeed, but it's being deprecated. It's mentioned in this issue[1] and being replaced with Ares[2]. Neither could decipher this strange encryption[3] I used it on :(

[1] https://github.com/Ciphey/Ciphey/issues/764

[2] https://github.com/bee-san/Ares

[3] "dEFLWWFKQWxRQW16RnkvbTZML0lsdz09" original text is "hacker"

Check Ciphey, I have used several times before and overall it’s great. https://github.com/Ciphey/Ciphey

It can help you detect various encryption and encodings and even decrypt them. Ciphey

I followed the steps here . I am running Python 3.10 (64). When I try to install Ciphey using the instructions, on my cmd prompt I get the following:

repo: https://github.com/Ciphey/Ciphey

if you're looking for something that would decrypt most well-known encodings/ciphers, there's ciphey. but no such thing exists to decrypt every known file type because, if it did, everyone would be using it.