fixme2.py

Tags: General Skills, Python
Author: LT ‘syreal’ Jones

Description

Fix the syntax error in the Python script to print the flag.
Download Python script

Hints

1. Are equality and assignment the same symbol?
2. To view the file in the webshell, do: $ nano fixme2.py
3. To exit nano, press Ctrl and x and follow the on-screen prompts.
4. The str_xor function does not need to be reverse engineered for this challenge.

   Approach

   The first hint gives us a good idea of what we’re looking for. Equality checks in Python use == while assignments use =. After scanning the code, we see line 22 and the comment above it saying # Check that flag is not empty. if flag = "" will make the flag equal to “” thus making a tauntology. To fix this, we use == instead of = and the resulting code is here.

   Flag

   picoCTF{3qu4l1ty_n0t_4551gnm3nt_b4d595d9}