For anyone else who was initially confused like I was: On first look, I thought the solution had to involve exploiting commands over telnet to inject a mult com

For anyone else who was initially confused like I was: On first look, I thought the solution had to involve exploiting commands over telnet to inject a mult command. It took me until looking at part 2 to realize it involved actually modifying the source code (which makes sense in retrospect). If you are looking to actually try and solve it, keep that in mind and don't look at part 2 :)