https://github.com/0xjonaseb11/security.3.0
Solidity smart contracts security | Beginner to Expert
https://github.com/0xjonaseb11/security.3.0
defi protocol-security security smartcontracts solidity vulnerability-detection
Last synced: 3 months ago
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Solidity smart contracts security | Beginner to Expert
- Host: GitHub
- URL: https://github.com/0xjonaseb11/security.3.0
- Owner: 0xJonaseb11
- Created: 2024-05-24T18:50:50.000Z (about 1 year ago)
- Default Branch: main
- Last Pushed: 2024-06-02T21:35:10.000Z (about 1 year ago)
- Last Synced: 2025-01-20T14:58:39.611Z (5 months ago)
- Topics: defi, protocol-security, security, smartcontracts, solidity, vulnerability-detection
- Language: Solidity
- Homepage:
- Size: 18.6 KB
- Stars: 2
- Watchers: 1
- Forks: 0
- Open Issues: 0
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Metadata Files:
- Readme: README.md
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README
# security.3.0
## About
Solidity smart contracts security | beginner to expert
### Getting started
- `Rentrancy attacks`
- This is an attack made by continuously calling back into the function
before updating state
- `Acess control`
- Improper access control can lead to unauthorized access and operations on your smart contract. Always implement strict access controls for sensitive functions.
- `Proper error handling`
- Proper error handling ensures that your contract behaves as expected under all conditions and provides informative messages when something goes wrong.
- `Insecure Randomness`
- Using on-chain data like block.timestamp for randomness is insecure because it can be manipulated by miners.
- `Timestamp dependence`
- Using block timestamps for critical logic can be manipulated by miners to some extent.
- `Price bait attack`
- The “price bait” attack is a sophisticated front-running attack where an attacker manipulates the price of an asset in a decentralized exchange (DEX) or other DeFi protocols to deceive users. This attack exploits the transparency of the blockchain and the time delay between transaction submission and execution.
### `Best Practices for Secure Smart Contract Development`
- Use Established Libraries: Leverage well-audited libraries like OpenZeppelin to avoid common pitfalls.
- Conduct Thorough Testing: Implement unit tests and integration tests using frameworks like Truffle or Hardhat. Consider edge cases and potential attack vectors.
- Code Reviews and Audits: Regular code reviews and third-party audits are essential to identify and fix vulnerabilities.
- Implement Upgradability Carefully: If your contract needs to be upgradeable, use proxy patterns and follow best practices to manage state and logic separation.
- Do not use block.timestamp to generate important random numbers or perform critical logic operations.
- Limit External Calls: Minimize the use of external calls and ensure they are necessary. Validate all inputs and handle unexpected responses securely.
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