{
  "schema_version": "1.4.0",
  "id": "GHSA-h4gq-q399-xm7r",
  "modified": "2022-05-14T02:20:31Z",
  "published": "2022-05-14T02:20:31Z",
  "aliases": [
    "CVE-2018-12885"
  ],
  "details": "The randMod() function of the smart contract implementation for MyCryptoChamp, an Ethereum game, generates a random value with publicly readable variables such as the current block information and a private variable, (which can be read with a getStorageAt call). Therefore, attackers can get powerful champs/items and get rewards.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
    }
  ],
  "affected": [],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-12885"
    },
    {
      "type": "WEB",
      "url": "https://etherscan.io/address/0x689FB61845488297dfE7586E5f7956475955d2Dc"
    },
    {
      "type": "WEB",
      "url": "https://etherscan.io/address/0xa44e464b13280340904ffef0a65b8a0033460430"
    },
    {
      "type": "WEB",
      "url": "https://medium.com/coinmonks/get-legendary-items-by-breaking-pnrg-of-mycyptochamp-an-ethereum-online-game-cve-2018-12855-6e6beb41b8df"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-338"
    ],
    "severity": "MODERATE",
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-08-07T15:29:00Z"
  }
}