CrossCTF Quals 2018 Pwn Easynote binary exploit Even Flow writeup binary exploit Impossible Shellcoding binary exploit Quiet Moon binary exploit Real Baby Pwnable binary exploit Skipping Rope binary exploit Reverse Engineering GoGoGo Manual Labour Misc CYOA writeup Crypto Lossy ORacle script exploit flag BabyRSA writeup exploit BabyRSA2 writeup exploit Web QuirkyScript 1 QuirkyScript 2 QuirkyScript 3 QuirkyScript 4 QuirkyScript 5 Baby Web