{
  "schema_version": "1.4.0",
  "id": "GHSA-xmm9-hrfr-pphf",
  "modified": "2023-03-28T18:30:30Z",
  "published": "2023-03-16T18:30:28Z",
  "aliases": [
    "CVE-2023-0811"
  ],
  "details": "Omron CJ1M unit v4.0 and prior has improper access controls on the memory region where the UM password is stored. If an adversary issues a PROGRAM AREA WRITE command to a specific memory region, they could overwrite the password. This may lead to disabling UM protections or setting a non-ASCII password (non-keyboard characters) and preventing an engineer from viewing or modifying the user program.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H"
    }
  ],
  "affected": [],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-0811"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-23-073-01"
    },
    {
      "type": "WEB",
      "url": "https://www.ia.omron.com/product/vulnerability/OMSR-2023-001_en.pdf"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-284"
    ],
    "severity": "CRITICAL",
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-03-16T18:15:00Z"
  }
}