Autonomous Smart Contract Auditing: AST Traversal and CEI Verification

说明与用途

基于AST的确定性分析可在Base L2上检测并防止自治钱包中的CEI违规，避免重入攻击。

问题

Reentrancy exploits arise when developers violate Checks‑Effects‑Interactions (CEI) by mutating state after external calls, enabling classic reentrancy attacks.

结果

AST‑based deterministic checks eliminated CEI violations in autonomous treasury operations on Base L2, preventing reentrancy attacks and enabling safe automated liquidity management.

工作流

• 1. Decompile or fetch contract source and export AST JSON via solc --ast-compact-json. 2. Run the Python CEIViolationDetector on the AST to identify any Assignment nodes following an external FunctionCall. 3. If violations are found, halt execution locally (hard revert) before sending the transaction. 4. If no violations, allow the autonomous agent to submit the transaction to the network.

证据

Polanya berulang: pengembang melanggar aturan Checks-Effects-Interactions (CEI), meninggalkan celah reentrancy klasik di mana mutasi state dilakukan setelah transfer token atau low-level call.

来源

Solusi yang terbukti tahan uji di sistem terdistribusi adalah pendekatan deterministik: Abstract Syntax Tree (AST) Traversal.

来源