## Full WriteUp
Full Writeup on our website: [https://www.aperikube.fr/docs/inshack_2019/hell_of_a_jail/](https://www.aperikube.fr/docs/inshack_2019/hell_of_a_jail/)
## TL;DR
Using `getattr()` to access to `exit.__code__`, to understand how the function works. Then access the `os` module via `exit.__globals__`, to get a shell.