The Ethernaut is a Web3/Solidity based wargame inspired on overthewire.org. Here’s the solution to the Level 11— Elevator. This elevator won't let you reach the top of your building. Right? Things that might help: - Sometimes solidity is not good at keeping promises. - This Elevator expects to be used from a…

The Ethernaut is a Web3/Solidity based wargame inspired on overthewire.org. Here’s the solution to the Level 10— Reentrancy. The goal of this level is for you to steal all the funds from the contract. Things that might help: -Untrusted contracts can execute code where you least expect it. -Fallback methods -Throw/revert bubbling -Sometimes…

The Ethernaut is a Web3/Solidity based wargame inspired on overthewire.org. Here’s the solution to the Level 9— King. The contract below represents a very simple game: whoever sends it an amount of ether that is larger than the current prize becomes the new king. On such an event, the overthrown…

The Ethernaut is a Web3/Solidity based wargame inspired on overthewire.org. Here’s the solution to the Level 8— Vault. The challenge is simple: Unlock the vault to pass the level! The Vault is a simple contract that is locked by a password. The password is stored in a private variable password…

The Ethernaut is a Web3/Solidity based wargame inspired on overthewire.org. Here’s the solution to the Level 7 Force. The description Some contracts will simply not take your money ¯\_(ツ)_/¯ The goal of this level is to make the balance of the contract greater than zero. There are also some simple…

The Ethernaut is a Web3/Solidity based wargame inspired on overthewire.org. Here’s the solution to the Level 6 Delegation. The challenge description states: The goal of this level is for you to claim ownership of the instance you are given. Things that might help - Look into Solidity’s documentation on the…

The Ethernaut is a Web3/Solidity based wargame inspired on overthewire.org. Here’s the solution to the Level 5 Token. The initial info challenges me to somehow multiply the starting token amount I am given: The goal of this level is for you to hack the basic token contract below. You are…

The Ethernaut is a Web3/Solidity based wargame inspired on overthewire.org. Here’s the solution to the Level 4 Telephone. The initial info does not reveal much: Claim ownership of the contract below to complete this level. This time the code is really short: A caller can set the owner to…

The Ethernaut is a Web3/Solidity based wargame inspired on overthewire.org. Here’s the solution to the Level 3 Coin Flip. The initial info clarifies the challenge: This is a coin flipping game where you need to build up your winning streak by guessing the outcome of a coin flip. …