CVE-2018-17877

CVE-2018-17877 concerns a lottery Smart Contract for Greedy 599 (Ethereum). The vulnerability: the contract generates a random value that is predictable through an external contract call. The developer attempted to prevent malicious contracts with extcodesize(), but an attacker can bypass this by...

CVE-2018-17877

A lottery smart contract implementation for Greedy 599, an Ethereum gambling game, generates a random value that is predictable via an external contract call. The developer used the extcodesize function to prevent a malicious contract from being called, but the attacker can bypass it by writing t...