Here are three common DeFi smart contract vulnerabilities, along with specific detection methods for each. These are based on real-world exploits and industry best practices (e.g., from standards like OWASP Smart Contract Top 10 and audits by firms like Trail of Bits, OpenZeppelin, and Consensys).
1. Reentrancy Vulnerability
Description:
Reentrancy occurs when an external call is made to an untrusted contract before the state of the current contract is updated. An attacker can re-enter the function before the state is finalized, allowing them to drain funds multiple times.
Specific Example:
A withdraw() function that sends ETH to the user via call{value: amount}() before updating the user’s balance in the mapping.
Detection Methods:
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Static Analysis Tools:
- Use tools like Slither (by Trail of Bits) or Mythril. These tools detect patterns
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