{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "Casper Bladt"
        ],
        "organization": "ICSrange.com research team",
        "summary": "reporting this vulnerability to CISA"
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited",
      "tlp": {
        "label": "WHITE",
        "url": "https://us-cert.cisa.gov/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov",
        "title": "CISA Disclaimer"
      },
      {
        "category": "legal_disclaimer",
        "text": "All information products included in https://us-cert.cisa.gov/ics are provided \"as is\" for informational purposes only. The Department of Homeland Security (DHS) does not provide any warranties of any kind regarding any information contained within. DHS does not endorse any commercial product or service, referenced in this product or otherwise. Further dissemination of this product is governed by the Traffic Light Protocol (TLP) marking in the header. For more information about TLP, see https://us-cert.cisa.gov/tlp/.",
        "title": "Legal Notice"
      },
      {
        "category": "summary",
        "text": "This updated advisory is a follow-up to the original advisory titled ICSA-22-333-04 Moxa UC Series that was published November 29, 2022, on the ICS webpage on cisa.gov/ICS.",
        "title": "Update Summary"
      },
      {
        "category": "summary",
        "text": "Successful exploitation of this vulnerability could allow an attacker with physical access to take full control of the device using the console port.",
        "title": "Risk evaluation"
      },
      {
        "category": "other",
        "text": "Multiple Sectors",
        "title": "Critical infrastructure sectors"
      },
      {
        "category": "other",
        "text": "Worldwide",
        "title": "Countries/areas deployed"
      },
      {
        "category": "other",
        "text": "Taiwan",
        "title": "Company headquarters location"
      },
      {
        "category": "general",
        "text": "CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA also provides a section for control systems security recommended practices on the ICS webpage at cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "No known public exploits specifically target this vulnerability. This vulnerability is not exploitable remotely.",
        "title": "Recommended Practices"
      }
    ],
    "publisher": {
      "category": "coordinator",
      "contact_details": "Email: CISAservicedesk@cisa.dhs.gov;\n Toll Free: 1-888-282-0870",
      "name": "CISA",
      "namespace": "https://www.cisa.gov/"
    },
    "references": [
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-22-333-04 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2022/icsa-22-333-04.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-22-333-04 Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-22-333-04"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://us-cert.cisa.gov/ics/Recommended-Practices"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://cisa.gov/ics"
      }
    ],
    "title": "Moxa UC Series",
    "tracking": {
      "current_release_date": "2023-02-23T00:00:00.000000Z",
      "generator": {
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1.0.0"
        }
      },
      "id": "ICSA-22-333-04",
      "initial_release_date": "2022-11-29T00:00:00.000000Z",
      "revision_history": [
        {
          "date": "2022-11-29T00:00:00.000000Z",
          "legacy_version": "Initial",
          "number": "1",
          "summary": "Moxa UC Series (Update A)"
        },
        {
          "date": "2023-02-23T00:00:00.000000Z",
          "legacy_version": "A",
          "number": "2",
          "summary": "Moxa UC Series (Update A)"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "1.1",
                "product": {
                  "name": "UC Series - UC-8580 Series: V1.1",
                  "product_id": "CSAFPID-0001"
                }
              }
            ],
            "category": "product_name",
            "name": "UC-8580 Series"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003e= 1.3 | \u003c= 1.5",
                "product": {
                  "name": "UC Series - UC-2100-W Series: V1.3 to V1.5",
                  "product_id": "CSAFPID-0002"
                }
              }
            ],
            "category": "product_name",
            "name": "UC-2100-W Series"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003e= 1.0 | \u003c= 1.2",
                "product": {
                  "name": "UC Series - UC-8540 Series: V1.0 to V1.2",
                  "product_id": "CSAFPID-0003"
                }
              }
            ],
            "category": "product_name",
            "name": "UC-8540 Series"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "2.2",
                "product": {
                  "name": "UC Series - UC-8410A Series: V2.2",
                  "product_id": "CSAFPID-0004"
                }
              }
            ],
            "category": "product_name",
            "name": "UC-8410A Series"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003e= 1.0 | \u003e= 2.4",
                "product": {
                  "name": "UC Series - UC-8200 Series: V1.0 to V2.4",
                  "product_id": "CSAFPID-0005"
                }
              }
            ],
            "category": "product_name",
            "name": "UC-8200 Series"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003e= 1.0 | \u003c= 1.1",
                "product": {
                  "name": "UC Series - UC-8100A-ME-T Series: V1.0 to V1.1",
                  "product_id": "CSAFPID-0006"
                }
              }
            ],
            "category": "product_name",
            "name": "UC-8100A-ME-T Series"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003e= 1.2 | \u003c= 1.3",
                "product": {
                  "name": "UC Series - UC-8100 Series: V1.2 to V1.3",
                  "product_id": "CSAFPID-0007"
                }
              }
            ],
            "category": "product_name",
            "name": "UC-8100 Series"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "1.2",
                "product": {
                  "name": "UC Series - UC-5100 Series: V1.2",
                  "product_id": "CSAFPID-0008"
                }
              }
            ],
            "category": "product_name",
            "name": "UC-5100 Series"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003e= 1.2 | \u003c= 2.0",
                "product": {
                  "name": "UC Series - UC-3100 Series: V1.2 to V2.0",
                  "product_id": "CSAFPID-0009"
                }
              }
            ],
            "category": "product_name",
            "name": "UC-3100 Series"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003e= 1.3 | \u003c= 1.5",
                "product": {
                  "name": "UC Series - UC-2100 Series: V1.3 to V1.5",
                  "product_id": "CSAFPID-00010"
                }
              }
            ],
            "category": "product_name",
            "name": "UC-2100 Series"
          }
        ],
        "category": "vendor",
        "name": "Moxa"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-1257",
      "cwe": {
        "id": "CWE-1263",
        "name": "Improper Physical Access Control"
      },
      "notes": [
        {
          "category": "summary",
          "text": "An attacker with physical access to the affected Moxa UC Series devices can initiate a restart of the device and gain access to its BIOS. Command line options can then be altered, allowing the attacker to access the terminal. From the terminal, the attacker can modify the device\u0027s authentication files to create a new user and gain full access to the system. CVE-2023-1257 has been assigned to this vulnerability. A CVSS v3 base score of 7.6 has been calculated; the CVSS vector string is (AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).",
          "title": "Vulnerability Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003",
          "CSAFPID-0004",
          "CSAFPID-0005",
          "CSAFPID-0006",
          "CSAFPID-0007",
          "CSAFPID-0008",
          "CSAFPID-0009",
          "CSAFPID-00010"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-1257"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "Moxa has developed updates for all of the affected products to address this vulnerability. Moxa encourages users to contact Moxa Technical Support (login required) to obtain the update.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-00010"
          ],
          "url": "https://www.moxa.com/support/support/technical-support"
        },
        {
          "category": "mitigation",
          "details": "Users are encouraged to visit Moxa\u0027s security advisory for more information.",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-00010"
          ],
          "url": "https://www.moxa.com/en/support/product-support/security-advisory/moxa-uc-series-improper-physical-access-control-vulnerability"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.6,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-00010"
          ]
        }
      ]
    }
  ]
}