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On this page
  • Objective
  • Writeup
  • PoC
  1. Web3 CTF
  2. Secureum AMAZEX DSS Paris

Safe Yield?

PreviousBalloon VaultNextCrystal DAO

Last updated 1 year ago

Objective

You got your hands on 0.1 ETH, and of course you would like to stack more. Luckily there's a promising DeFi protocol which allows depositors to earn fees on both dex swaps and flash loans from others. But it takes so long to earn any meaningful amount...

Can you do faster?

📌 Drain at least 100 ETH from the yield pool.

🗒️ Concepts you should be familiar with (spoilers!)

The contracts that you will hack are:

The test script where you will have to write your solution is:

Writeup

PoC

Flash loans
ERC-3156 standardized flash loan interface
YieldPool.sol
Challenge6.t.sol
https://github.com/ret2basic/AMAZEX-DSS-PARIS/tree/main/src/6_yieldPool
yieldPool