DeFi Smart Contract Vulnerabilities Audit Guide

Here's a thinking process:

1. Understand User Request:

   • User wants: "List 3 common DeFi smart contract vulnerabilities and how to detect them. Be specific."
   • Key elements: 3 vulnerabilities, DeFi context, detection methods, specificity required.

2. Identify Core Topics:

   • DeFi smart contract vulnerabilities are well-documented. I need to pick 3 that are both common and have clear, specific detection techniques.
   • Potential candidates: Reentrancy, Integer Overflow/Underflow, Access Control Issues, Front-running/MEV, Oracle Manipulation, Flash Loan Attacks, Arithmetic Issues, Logic Errors, etc.

I should pick 3 that are fundamental and widely recognized:

• Reentrancy attacks
• Integer overflow/underflow (though less common post-solidity 0.8+, but still relevant in older codebases and other languages)
• Oracle manipulation/