https://github.com/rootulp/ethernaut
Ethernaut solutions
https://github.com/rootulp/ethernaut
ethernaut solidity
Last synced: about 2 months ago
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Ethernaut solutions
- Host: GitHub
- URL: https://github.com/rootulp/ethernaut
- Owner: rootulp
- License: mit
- Created: 2022-03-08T06:52:41.000Z (about 3 years ago)
- Default Branch: main
- Last Pushed: 2022-03-11T05:28:09.000Z (about 3 years ago)
- Last Synced: 2025-02-14T10:43:42.778Z (4 months ago)
- Topics: ethernaut, solidity
- Language: Solidity
- Homepage: https://ethernaut.openzeppelin.com
- Size: 46.9 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# Ethernaut
[](https://rootulp.mit-license.org)
Solutions to [Ethernaut](https://ethernaut.openzeppelin.com) exercises.
## Getting Started
If you are new to [Ethernaut](https://ethernaut.openzeppelin.com), you can get started with [this video](https://www.youtube.com/watch?v=kZb6Qjlgybo).
If you are new to [Foundry](https://github.com/gakonst/foundry), you can get started with [foundry-book](https://onbjerg.github.io/foundry-book/).
## Credits
1. [ethernaut-x-foundry](https://github.com/ciaranmcveigh5/ethernaut-x-foundry)
1. [Ethernaut x Foundry - 0x0 Hello Ethernaut](https://eval.hashnode.dev/ethernaut-x-foundry-0x0-hello-ethernaut)
## Local Development
1. [Install foundry](https://github.com/gakonst/foundry#installation)
1. Clone this repo
1. Create an Alchemy project for Rinkeby
```bash
cp .env .env.local
vim .env.local # Populate ETH_RPC_URL with endpoint from Alchemy
source .env.local
```
### Helpful Commands
```sh
forge build
forge test
```
## Contribute
I'd appreciate any feedback via [issues](https://github.com/rootulp/exercism/issues/new).
## Solutions
Level | Name | Contract | Solution |
----- | ----------------- | ------------------------------------------ | ------------------------------------------------------------------ |
0 | Hello Ethernaut | 0x8A18f61202Bb364e6277B42669C123E32D5e2D2d | 0xe6351327acfbc8f8063711d13c9a066e1a135fb40ce1de2dda135fc9485fe3b7 |
1 | Fallback | 0x519AdEA92a0deE916489431c2f6473B44b570F3f | 0x706b0bf05a40a171461540f5eb96875a6f41d8a5ef79b10110cf600b43d95976 |
2 | Fallout | 0x4D341BF4bf10D415c0Ed61293629394546ca5670 | 0xb2909f15f72e8ec92d9419a2ac44afb9335ab41a6855424e62496ee64daf91d8 |
3 | Coin Flip | 0x4dF32584890A0026e56f7535d0f2C6486753624f | 0xd6d9aecd30a20ce8215e7befada0efd2c2f033e3 |
## Notes
### Hello Ethernaut
```javascript
await contract.info(); // "You will find what you need in info1()."
await contract.info1(); // "Try info2(), but with \"hello\" as a parameter."
await contract.info2("hello"); // "The property infoNum holds the number of the next info method to call."
await contract.infoNum();
await contract.info42(); // "theMethodName is the name of the next method."
await contract.theMethodName(); // "The method name is method7123949."
await contract.method7123949(); // "If you know the password, submit it to authenticate()."
await contract.password(); // "ethernaut0"
await contract.authenticate("ethernaut0");
```
### Fallback
- `0x7109709ECfa91a80626fF3989D68f67F5b1DD12D` is a special contract address. See [cheatcodes](https://onbjerg.github.io/foundry-book/forge/cheatcodes.html).
- Used Remix to call contribute 1 wei, transact with 1 wei (triggers fallback), then withdraw
- In Remix, replace `@openzepplin` prefix with URL to repo
```diff
-import '@openzeppelin/contracts/math/SafeMath.sol';
+import 'https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v3.4.0/contracts/math/SafeMath.sol';
```
### Fallout
- Prefer `constructor()` over contract name constructor to avoid typos.
### CoinFlip
- Don't rely on blockhash as a source of randomness. Consider [VRF](https://docs.chain.link/docs/chainlink-vrf/) instead.
#### Deploy contract with
```bash
$ RUST_BACKTRACE=1 forge create CoinFlipSolution --constructor-args $COIN_FLIP_LEVEL --rpc-url $ETH_RPC_URL --private-key $PRIVATE_KEY
compiling...
no files changed, compilation skipped.
Deployer: 0x399a858c539db521231a4e776ffbe28a696df510
Deployed to: 0xd6d9aecd30a20ce8215e7befada0efd2c2f033e3
Transaction hash: 0xafedbec89e927f7695679e3263e57db98eace5c1c46caba0c89add1a0e26cd3b
```
#### Attempt to verify contract with
```bash
$ forge verify-contract --chain-id $CHAIN --constructor-args 0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000002a30783464463332353834383930413030323665353666373533356430663243363438363735333632346600000000000000000000000000000000000000000000 --compiler-version $COMPILER_VERSION $COIN_FLIP_SOLUTION src/CoinFlip/CoinFlipSolution.sol:CoinFlipSolution $ETHERSCAN_API_KEY
Submitted contract for verification:
Response: `OK`
GUID: `cjqrs7rprbiwxyudeeejvpq84jtwm2zyy1ygx34latrdcvpiyl`
url: https://rinkeby.etherscan.io//address/0xd6d9…33e3#code
$ RUST_BACKTRACE=1 forge verify-check --chain-id $CHAIN cjqrs7rprbiwxyudeeejvpq84jtwm2zyy1ygx34latrdcvpiyl $ETHERSCAN_API_KEY
Verification is pending...
# Failed
```