Jail Break-in

ما ستتعلّمه

Recognising a restricted-`eval` Python jail and probing what is still reachable.
Recovering the real `__builtins__` from a live object via `().__class__.__base__.__subclasses__()`.
Pulling a module's globals out of a class method's `__globals__`.
Defeating a naive substring/keyword blacklist by reassembling forbidden names at runtime.
Turning introspection into an arbitrary file read of the flag.

سجّل الدخول لقراءة المهام وتشغيل الجهاز والإجابة عن الأسئلة.