Cryptogs Security Breach

Cryptogs is an ethereum-based digital currency. A security vulnerability exists in the 'endCoinFlip' and 'throwSlammer' functions in Cryptogs' smart contract implementation. An attacker could use the vulnerability to infer random values and win the game...

CVE-2018-14715: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

The endCoinFlip function and throwSlammer function of the smart contract implementations for Cryptogs, an Ethereum game, generate random numbers with an old block's hash. Therefore, attackers can predict the random number and always win the game...