Cairo/StarkNet Vulnerability Scanner

Cairo/StarkNet Vulnerability Scanner

1. Purpose

Systematically scan Cairo smart contracts on StarkNet for platform-specific security vulnerabilities related to arithmetic, cross-layer messaging, and cryptographic operations. This skill encodes 6 critical vulnerability patterns unique to Cairo/StarkNet ecosystem.

2. When to Use This Skill

• Auditing StarkNet smart contracts (Cairo)
• Reviewing L1-L2 bridge implementations
• Pre-launch security assessment of StarkNet applications
• Validating cross-layer message handling
• Reviewing signature verification logic
• Assessing L1 handler functions

3. Platform Detection

File Extensions & Indicators

• Cairo files: .cairo

Language/Framework Markers

// Cairo contract indicators
#[contract]
mod MyContract {
    use starknet::ContractAddress;

    #[storage]
    struct Storage {
        balance: LegacyMap<ContractAddress, felt252>,
    }

    #[external(v0)]
    fn transfer(ref self: ContractState, to: ContractAddress, amount: felt252) {
        // Contract logic
    }

    #[l1_handler]
    fn handle_deposit(ref self: ContractState, from_address: felt252, amount: u256) {
        // L1 message handler