Tags: android 

Rating: 1.0

# CTF Coin
> Points: 991

## Description
> Make your CTF Coins Unlimited (more than 1000000000000000)

## Solution
App >>>

![](ctf_coin.png)

We can buy one coin at a time... but we have to make it that amount... So I intercepted the network data with Wireshark and saw some requests.

![](sniff.png)

So I changed the value of Coins JSON and send a request with Burp Suite Repeater

![](burp.png)

## Flag
> RaziCTF{ZmRzdnNkRlNEcWUzQFFxZURXRUZEU1ZGU0RTNTVkc2Y1ZmV2c0RGcnEzNSRSI3J3ZnNlZnJ3IyQjJSNA}

Original writeup (https://github.com/t3rmin0x/CTF-Writeups/tree/master/Razi%20CTF/Android/CTF%20Coin).