This is my short writeup for John's shuffle. John is completely drunk and unable to protect his poor stack.. Fortunately he can still count on his terrific shuffling skills. Connect to shuffle.polictf.it:80 This is pwnable challenge worth 350 points. The binary is NX enabled, no stack protector yey. I solved really fast and I thought this challenge is not worth 350 points ;) How to PWN the server
![PoliCTF John's shuffle: system("sh") technique - アリ](https://cdn-ak-scissors.b.st-hatena.com/image/square/a601b26b6f82d0c3f4fb526994c4e835dbfa0fef/height=288;version=1;width=512/http%3A%2F%2Fcdn-ak.f.st-hatena.com%2Fimages%2Ffotolife%2Fa%2Fakiym%2F20150712%2F20150712184549.png)