{
  "schema_version": "1.4.0",
  "id": "GHSA-fr6h-7w99-6jxc",
  "modified": "2022-05-24T19:04:00Z",
  "published": "2022-05-24T19:04:00Z",
  "aliases": [
    "CVE-2021-31251"
  ],
  "details": "An authentication bypass in telnet server in BF-430 and BF431 232/422 TCP/IP Converter, BF-450M and SEMAC from CHIYU Technology Inc allows obtaining a privileged connection with the target device by supplying a specially malformed request and an attacker may force the remote telnet server to believe that the user has already authenticated.",
  "severity": [],
  "affected": [],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-31251"
    },
    {
      "type": "WEB",
      "url": "https://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices#cve-2021-31251"
    },
    {
      "type": "WEB",
      "url": "https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-remote-attacks/#.YLqK1KhKguU"
    },
    {
      "type": "WEB",
      "url": "https://www.chiyu-tech.com/msg/message-Firmware-update-87.html"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "severity": "CRITICAL",
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-06-04T21:15:00Z"
  }
}