App - System

I’ve put a shellcode [Th1b4ud : no spoil] and it seems that the shell is getting executed but it’s exiting.
I’ve added a screenshot of my gef output where the process executed /bin/dash and exits. However running this normally with the cat trick is just giving me a Segmentation fault and not opening the shell.

Hello,

Most likely an issue with a difference of offsets between GDB and the local exploit.
I advise you to keep debugging with an attached process with GDB instead of running the program through GDB, you’ll get the correct environment this way.

Thank you for your reply, How can I attach the process to gdb if it’s running? Do I use the & and then use gdb?