jellyCTF

Stalknights_5 [973 pts]

Writeup author: lolmenow

Difficulty: medium

Provided files: N/A

Description: What a weird username this starnerd starknight has. I wonder what hobbies they’re into. Maybe they have an account not mentioned on social media. Find the flag on their account’s profile page. Flag format: jellyCTF{flag_on_profile_page} Note: The results of previous challenges are not relevant for this challenges (though clues from those sites may help)

Remember how I was talking about why I did not check the “taken” accounts first from https://instantusername.com/ in my stalknight_3 writeup?

Well, instantusername.com query to all the different API’s are actually broken!

How did I find this out? I manually went through each website that says it was “available” and manually checked if it was actually available. Sure enough, one of the websites had the flag!

https://leetcode.com/u/starknight1337/

image

What did instantusername.com say?

image

Moral of the story: don’t trust automated tools to a great extent!

Final flag: jellyCTF{1337code_0n_str34m}