App - System

Is anyone having issues with the shell in this challenge ? I crafted the overflow, but system("/bin/dash") returns immediately with EAX=0. Or is this part of the challenge and I am missing something ? I’ve tried adding extra data to the input to be read by the shell, but that does not work. The shell should wait for input anyway. Also tried appending a newline due to line buffering, but this also did not help.

Nevermind. Hint : use strace to see what is really happening.

Even though your strace approach is valid, I found this an interesting question and answer if you’d like to use another approach or you’re confused as to why your strace solution actully works.