Category: CTB A piece of code is currently up @ ctf.ifmo.ru:4004 BTW, here is what’s inside the jail: vos@ms7:~/private_data$ ls -la total 20K d——r-x 2 alice alice 4.0K Aug 21 00:23 . d——r-x 3 alice alice 4.0K Aug 21 00:29 .. ——-r– 1 alice alice 9.0K Aug 21 00:23 key Ok, we have this binary …