MyCryptoChamp Information Disclosure Vulnerability

MyCryptoChamp is an ethereum-based blockchain game. An information disclosure vulnerability exists in the 'randMod' function in MyCryptoChamp's smart contract implementation, which stems from the fact that the 'randMod' function generates a publicly readable variable containing a public readable...

Design/Logic Flaw

The randMod function of the smart contract implementation for MyCryptoChamp, an Ethereum game, generates a random value with publicly readable variables such as the current block information and a private variable, which can be read with a getStorageAt call. Therefore, attackers can get powerful...