Printable View
Hey I found this the other day. If you get the IP of a printer, u can telnet into port 9100 of it, and type anything you want, and Ctrl+"]" bracket at the same time to end it. Then the printer will print what u typed in! Its because everything in port 9100 the printer tries to read as a printing job. Awesome to play pranks with :)
you can use Net Cat to send entire text docs or program output to the printer this way.
i recently as a joke used this port on a dell 6100n and a little more Printer Control Language (PCL) to change the "ready" indicator to read "deposit 25 cents".
it was meant to amuse one woman that sits by the printer but when a VP came by to pick up a doc and thought he had to put in a quater to get it, he swore out lowd (son of ahhhh...), threw his clip board on the ground and began digging in his pockets.... i almost died.
the woman by the printer told him not to worry she'll get it for him. i quickly changed it back.
This is actually a problem when you try to scan a network with vuln analysis tools. Many tools have removed port 9100 from the scan because when you prob it, it will print.Quote:
Originally posted here by punk-kid
Hey I found this the other day. If you get the IP of a printer, u can telnet into port 9100 of it, and type anything you want, and Ctrl+"]" bracket at the same time to end it. Then the printer will print what u typed in! Its because everything in port 9100 the printer tries to read as a printing job. Awesome to play pranks with :)
nmap is one that comes to mind immediately. port 9100 is excluded from the scan unless you specifically include it.
http://www.securityfocus.com/columnists/384
With netcat? how'd you send a doc with nc?