CVE-2018-17987

The determineWinner function of a smart contract implementation for HashHeroes Tiles, an Ethereum game, uses a certain blockhash value in an attempt to generate a random number for the case where NUM_TILES equals the number of people who purchased a tile, which allows an attacker to control the awarding of the prize by being the last person to purchase a tile.

Score

CVSS 3.0 7.5 High

Status

Modified - cve@mitre.org

Published

2018-12-26

Last modified

2024-08-05

Weaknesses

CWE-330

Affected products

• Hashheroes (Hashheroes)

References

• https://github.com/TEAM-C4B/CVE-LIST/tree/master/CVE-2018-17987