Smart Contract Hacker Playground

Challenges 💪

Parity Hacks 1/2

The challenge contains two levels that are based on the Parity hacks from July (Level 1) and November 2017 (Level 2). Level 1 is based on the contract version from this commit here that was done shortly before the first attack occured. Level 2 incorporates the fixes that were implemented after the attack. The contracts have been slightly modified so they work with a more recent version of the compiler.

PoWH Coin

PoWH or "Proof of Weak Hands" coin was advertised as a legitimate pyramid scheme that ran for several months between end of 2017 and beginning 2018. The challenge is based on the hack that put an end to the coin ultimately and where about ~1000 Ether was lost to the attackers. The PoWH contract deployment can be found at 0xa7ca36f7273d4d38fc2aec5a454c497f86728a7a.

Installation 💽

Make sure you have nodejs 10.x and npm 6.x installed
Run npm install to install dependencies.

Launch a challenge 🚀

After installation simply change to the directory of the challenge and launch the level with start_level

$ ./start_level <number of the level>

Notes

Restart a challenge by just CTRL+C and run ./start_level again