Vulnerabilities > CVE-2018-17968 - Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) vulnerability in Ruletkaio
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
NONE Availability impact
NONE Summary
A gambling smart contract implementation for RuletkaIo, an Ethereum gambling game, generates a random value that is predictable by an external contract call. The developer wrote a random() function that uses a block timestamp and block hash from the Ethereum blockchain. This can be predicted by writing the same random function code in an exploit contract to determine the deadSeat value.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 1 |