CTFlearn-Writeups/Binary/Lazy Game Challenge/README.md

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2020-07-31 18:48:25 +05:30
## Lazy Game Challenge
The main idea finding the flag is thinking differently to break the logic in binary file.
#### Step-1:
After pwning into the given machine: `nc thekidofarcrania.com 10001`, we are asked to play a betting game.
#### Step-2:
I input <strong>Y</strong> and proceed to see the game. According to given scenario, I seemed to lose every bet of 100$. So I had to do something differently.
#### Step-3:
This time I placed a bet of a hefty number like 1000000$ which I didn't even possess. I spit out errors. :(
#### Step-4:
But the main idea in pwning lies in abnormal thinking and that's where you focus. I tried out negative number this time for the bet like -100000$. I still could play, it shows there was a program logic flaw there.
Now I went wild to give all numbers (which I had to guess below 10) greater than 10. Finally it gave me flag.
<img src="Flag.png">
#### Step-3:
Finally the flag becomes:
`CTFlearn{d9029a08c55b936cbc9a30_i_wish_real_betting_games_were_like_this!}`