Asked in the chat a few times but never got a response.
This challenge to start with was really easy, Ive got a working exploit, and then because that didnt work remotely I tried an info leak instead, that didn't work remotely either.
Im 99% certain that the problem is I don't have the correct libc version. Now without any info leaks I'm a little bit stuck. I've tried libc-2.23 and libc-2.24, personally I think its 2.2.5, but to be honest I cant find a precompiled version anywhere, and compiling another glibc library seems a bit over the top.
Anyone got any tips? This last bit is really stressing me out.