Whamazon (Huntress CTF 2024)
Author: @JohnHammond
Wham! Bam! Amazon is entering the hacking business! Can you buy a flag?
A GoTTY terminal on the web is created. Strangely with Dark Reader plugin the display was broken, so I had to do it on incognito.
It is an interactive terminal with numbers to choose options presented.
Buy the flag?
First off, trying to buy the flag. It costs $1000000000 and I apparently only have 50 bucks. I had to manipulate and spend negative money to earn money.
Maths
I try buying an apple. Apple costs 3 bucks, and I am asked how much I want. I go straight for the -1
and sure enough, I now have 53 bucks. eheh. I go straight and bought another -1000000000 apples and became rich. Great deal buying an Apple from Whamazon.
Scissors Paper Stone
Next is Rock Paper Scissors (or where I’m from, scissors, paper, stone). Apparently when I try to purchase this, I need to battle the terminal. It tries to “psych” me by saying it will not choose Rock, so I choose Rock. It choose Paper. Then again I choose Paper and it chose Paper. Strange. Then I chose Scissors and it chose Paper. It lost. What. Then it gave me the flag.
Flag?
Yes that’s it. I go to my inventory and there the flag is. Very fun warm-up!