UserWallet Security Vulnerability

UserWallet is an ethereum-based digital currency. A security vulnerability exists in UserWallet's smart contract implementation. An attacker can exploit the vulnerability to change the value of sweeperList to 0X123456789...

Code injection

An issue was discovered in a smart contract implementation for UserWallet 0x0a7bca9FB7AfF26c6ED8029BB6f0F5D291587c42, an Ethereum token. First, suppose that the owner adds the evil contract address to his sweepers. The evil contract looks like this: contract Exploit uint public start; function...