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.
References
Link Resource
https://github.com/TEAM-C4B/CVE-LIST/tree/master/CVE-2018-17987 Exploit Third Party Advisory
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: mitre

Published: 2018-12-26T20:00:00

Updated: 2018-12-26T19:57:01

Reserved: 2018-10-04T00:00:00


Link: CVE-2018-17987

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2018-12-26T21:29:00.997

Modified: 2019-02-14T19:08:02.910


Link: CVE-2018-17987

JSON object: View

cve-icon Redhat Information

No data.

CWE