Goes into more detail about the samsung hack that allows you to get admin access to the machine. Apparently the whole thing in turned on via an SMNP/MIB object. Even when SNMP is off they device still listens for this. Now this only affects some of the samsung machines. I did my project thesis 8 years ago about the issues with MIB’s and its still a problem.
http://www.engadget.com/2012/11/29/samsung-printer-hack-could-let-the-wrong-ones-in/