DeFi Smart Contract Vulnerabilities Audit Guide

Here's a thinking process:

1. Understand User Request:

   • User wants: List 3 common DeFi smart contract vulnerabilities
   • For each: How to detect them
   • Must be specific

2. Identify Key DeFi Vulnerabilities:
   I need to pick 3 well-known, impactful, and commonly discussed DeFi smart contract vulnerabilities. Good candidates:

   • Reentrancy attacks (e.g., The DAO)
   • Integer overflow/underflow (though less common now with Solidity ^0.8.0, still relevant in older code or via library interactions)
   • Access control issues (owner-only functions, proxy admin takeovers)
   • Flash loan attacks (manipulating prices, draining liquidity)
   • Oracle manipulation/price feed vulnerabilities
   • Front-running / MEV related issues
   • Reentrancy guards missing
   • Logic errors in swap/liquidity functions