Challenge by: realansgar
Writeup by: rebane2001
The challenge consists of a simple Flask webapp that lets you eval arbitrary Python code in a jail in order to evaluate your solution to a leetcode-style programming challenge. The flag can be retrieved by running the /readflag setuid program. The source code was provided.
| # -*- coding: utf-8 -*- | |
| # To list this file sections: $ grep '^"" ' notes.py | |
| """"""""""""" | |
| "" Why Python ? | |
| """"""""""""" | |
| - extremely readable (cf. zen of Python + [this 2013 study](http://redmonk.com/dberkholz/2013/03/25/programming-languages-ranked-by-expressiveness/)) | |
| - simple & fast to write | |
| - very popular (taught in many universities) | |
| - has an extremely active development community |
