Smart Contract Vulnerability Lab Developed a

Smart Contract Vulnerability Lab

Developed a hands-on smart contract security lab to demonstrate real-world vulnerabilities in Ethereum-based applications. This project focuses on understanding how common exploits occur, how attackers take advantage of them, and how to prevent such issues in production smart contracts.

The lab includes multiple vulnerability scenarios, each with a vulnerable contract, an attacker implementation, and an execution script to simulate real attack conditions.

Key Features

Demonstrates real-world smart contract vulnerabilities

Includes attacker contracts to simulate exploits

Provides executable scripts for testing attacks

Structured for learning and practical understanding

Vulnerabilities Covered

Reentrancy Attack

Access Control Vulnerability

tx.origin Authentication Flaw

Integer Overflow / Underflow

Tech Stack

Solidity

Hardhat

Ethers.js

JavaScript

Key Learnings

Smart contract vulnerabilities are often caused by logical flaws

Execution order and external calls can introduce critical risks

Proper access control is essential for contract security

Secure design patterns like Checks-Effects-Interactions are crucial

Project Link: https://github.com/bizzorotical-ank01/smart-contract-vulnerability-lab