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    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.

    Published:Dec 26, 2018
    Last Modified:Nov 21, 2024
    EPS:Dec 26, 2018
    EPSS Score:0.00237
    CVSS Score:7.5

    Affected Products

    Vendor
    Hashheroes
    Product
    Hashheroes

    Exploits

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

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High