{
  "schema_version": "1.4.0",
  "id": "GHSA-vx7r-7h24-rm89",
  "modified": "2022-05-24T17:46:35Z",
  "published": "2022-05-24T17:46:35Z",
  "aliases": [
    "CVE-2020-36284"
  ],
  "details": "Union Pay up to 3.4.93.4.9, for android, contains a CWE-347: Improper Verification of Cryptographic Signature vulnerability, allows attackers to shop for free in merchants' websites and mobile apps, via a crafted authentication code (MAC) which is generated based on a secret key which is NULL.",
  "severity": [],
  "affected": [],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36284"
    },
    {
      "type": "WEB",
      "url": "https://www.dropbox.com/s/6smwnbrp0kgsgrc/poc_code.py?dl=0"
    },
    {
      "type": "WEB",
      "url": "https://www.dropbox.com/s/czbkdr73tclq2nr/UnionPay_Vulnerability_Report.txt?dl=0"
    },
    {
      "type": "WEB",
      "url": "http://mobitec.ie.cuhk.edu.hk/cve_2020"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-347"
    ],
    "severity": "HIGH",
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-04-06T16:15:00Z"
  }
}