2023 corCTF - touch-grass
Overview
- 89 solves / 133 points
- authors: Strellic, FizzBuzz101, 0x5a
Description
Vitamin D deficiency and complications from a sedentary lifestyle are plaguing the CTF community.
To help change this, the esteemed CoR tribunal has decided that touching grass in sunlight is a vital part of this CTF experience.
Trying to trick this system will result in your team being placed on a hall of SHAME - the entire world will know that you don’t touch grass!
Analyzation
Get into the url, the authors said
to get your flag, your image must contain all of the following:
1. grass (obviously) (dirt or plants are also fine)
2. a hand (preferably touching the grass)
3. and the following code: abcdefgh, written on a piece of paper (please write legibly and clearly)
4. please submit the image with the code upright and very visible so it can be read correctly
please do not forget the above code, we need it to make sure that you didn't photoshop or edit the image!
Solution
Do exactly what they said, post an image!
The flag is
corctf{i_hope_you_d1dnt_have_a_gr4ss_allergy}