Bugchain

Find and exploit bugs in a simplified blockchain implementation built on Solana.

The Bugchain challenge presents a simplified blockchain implementation with intentional vulnerabilities. Your task is to identify and exploit these weaknesses, highlighting common pitfalls in blockchain design and implementation.

Challenge Goals

  • Understand core blockchain implementation concepts
  • Identify security vulnerabilities in consensus mechanisms
  • Learn about proper validation in decentralized systems
  • Explore attack vectors against blockchain protocols

Originally presented at ALLES CTF 2021, this challenge offers a unique perspective on blockchain security by focusing on the fundamental structures and mechanisms that can be compromised if not implemented correctly. It provides valuable insights for developers working on custom blockchain solutions.