beaverx00 / ethernaut-foundry Goto Github PK

ethernaut-foundry

This is an Ethernaut challenge solution written with Foundry

Test and verify as you wish!

This is a Foundry's forge-based Ethernaut challenge solution. The code is written using the Forge Standard Library and you can test and validate the attack transactions.

Since each challenge has a different solidity version, instead of deploying the ethernaut contract, implemented it by creating and validating challenge instances directly through each challenge factory contract. The following two challenges have exceptions:

• Alien Codex
  Spoiler warning

  Since this challenge does not compile in solidity version 0.6 or later, loaded the bytecode compiled in version 0.5 directly into memory and created an instance using the create opcode.
• Motorbike
  Spoiler warning

  The challenge is to verify that the contract instance is self-destructed, which is impossible to verify with a forge test because code deletion occurs after the transaction. Therefore, verified it by checking the balance.

Before we get started, you'll need to install foundry.

curl -L https://foundry.paradigm.xyz | bash
foundryup

Then, run the following commands:

git clone https://github.com/beaverx00/ethernaut-foundry.git
cd ethernaut-foundry
forge install

├── lib
│   ├── forge-std
│   ├── openzeppelin-contracts
│   └── openzeppelin-contracts-solc-0.6
├── src
│   ├── levels
│   │   ├── Reentrance.sol
│   │   └── ReentranceFactory.sol
│   └── attacks
│       └── ReentranceAttack.sol
└── test
    └── Reentrance.t.sol

Using the Reentrance challenge as an example, the src directory contains Reentrance.sol, the challenge contract, and ReentranceFactory.sol, which creates challenge instances and validates the results. The test directory contains the Reentrance.t.sol file, which contains the test code to perform the attack and request validation. Finally, if you need a separate contract deployment for challenge solving, it exists under the attacks directory.

All test contracts are named <Challenge>Test (for example, ReentranceTest) and the test function is named test_<Challenge>()(e.g. test_Reentrance())

If you want to test the Reentrance, you can do the following:

forge test --match-contract=Reentrance -vvvv

You can check emiited logs and stack traces during test. Further information, see Foundry Book

1. Fallback
2. Fallout
3. Coin Flip
4. Telephone
5. Token
6. Delegation
7. Force
8. Vault
9. King
10. Re-entrancy
11. Elevator
12. Privacy
13. Gatekeeper One
14. Gatekeeper Two
15. Naught Coin
16. Preservation
17. Recovery
18. MagicNumber
19. Alien Codex
20. Denial
21. Shop
22. Dex
23. Dex Two
24. Puzzle Wallet
25. Motorbike
26. DoubleEntryPoint
27. Good Samaritan
28. Gatekeeper Three

• @ciaranmcveigh5/ethernaut-x-foundry