vde-2019-019

{
  "document": {
    "acknowledgments": [
      {
        "organization": "CERT@VDE",
        "summary": "coordination",
        "urls": [
          "https://certvde.com"
        ]
      },
      {
        "names": [
          "Andreas Galauner"
        ],
        "organization": "Rapid7",
        "summary": "coordination"
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-GB",
    "notes": [
      {
        "category": "summary",
        "text": "In case TwinCAT is configured to use the Profinet driver, a denial of service of the controller could be reached by sending special packets to the device.",
        "title": "Summary"
      },
      {
        "category": "description",
        "text": "TwinCAT includes a Profinet driver, which could be configured in the engineering environment to use Profinet connections to the controller.\n\nIn case this is configured and the controller is started, a specially crafted Profinet DCP packet could be sent to the TwinCAT device, which will lead to a denial of service of the device.\n\nOperation can be resumed by restarting the device.",
        "title": "Impact"
      },
      {
        "category": "description",
        "text": "Profinet could be blocked in perimeter firewall to block PROFINET DCP packets from untrusted networks to the device.\n\nBeckhoff will provide updates for the mentioned TwinCAT Versions.",
        "title": "Remediation"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "product-securityincident@beckhoff.com",
      "name": "Beckhoff Automation GmbH & Co. KG",
      "namespace": "https://www.beckhoff.com"
    },
    "references": [
      {
        "category": "external",
        "summary": "CERT@VDE Security Advisories for Beckhoff",
        "url": "https://certvde.com/en/advisories/vendor/beckhoff/"
      },
      {
        "category": "self",
        "summary": "VDE-2019-019: Beckhoff: TwinCAT Denial-of-Service in Profinet driver - HTML",
        "url": "https://certvde.com/en/advisories/VDE-2019-019"
      },
      {
        "category": "self",
        "summary": "VDE-2019-019: Beckhoff: TwinCAT Denial-of-Service in Profinet driver - CSAF",
        "url": "https://beckhoff.csaf-tp.certvde.com/.well-known/csaf/white/2019/vde-2019-019.json"
      }
    ],
    "title": "Beckhoff: TwinCAT Denial-of-Service in Profinet driver",
    "tracking": {
      "aliases": [
        "VDE-2019-019"
      ],
      "current_release_date": "2025-05-14T13:00:14.000Z",
      "generator": {
        "date": "2025-04-11T07:14:12.685Z",
        "engine": {
          "name": "Secvisogram",
          "version": "2.5.23"
        }
      },
      "id": "VDE-2019-019",
      "initial_release_date": "2019-10-09T10:00:00.000Z",
      "revision_history": [
        {
          "date": "2019-10-09T10:00:00.000Z",
          "number": "1",
          "summary": "Initial revision."
        },
        {
          "date": "2024-11-06T11:27:01.000Z",
          "number": "2",
          "summary": "Fix: correct certvde domain, added self-reference"
        },
        {
          "date": "2025-04-11T07:00:00.000Z",
          "number": "3",
          "summary": "Fix: version range"
        },
        {
          "date": "2025-05-14T13:00:14.000Z",
          "number": "4",
          "summary": "Fix: added distribution"
        }
      ],
      "status": "final",
      "version": "4"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "branches": [
                  {
                    "category": "product_version_range",
                    "name": "<=2304",
                    "product": {
                      "name": "TwinCAT <=2304",
                      "product_id": "CSAFPID-11001"
                    }
                  },
                  {
                    "category": "product_version_range",
                    "name": "<=4204.0",
                    "product": {
                      "name": "TwinCAT <=4204.0",
                      "product_id": "CSAFPID-11002"
                    }
                  },
                  {
                    "category": "product_version",
                    "name": "2305",
                    "product": {
                      "name": "TwinCAT 2305",
                      "product_id": "CSAFPID-12001"
                    }
                  },
                  {
                    "category": "product_version",
                    "name": "4204.1",
                    "product": {
                      "name": "TwinCAT 4204.1",
                      "product_id": "CSAFPID-12002"
                    }
                  }
                ],
                "category": "product_family",
                "name": "TwinCAT"
              }
            ],
            "category": "product_family",
            "name": "Software"
          }
        ],
        "category": "vendor",
        "name": "Beckhoff"
      }
    ],
    "product_groups": [
      {
        "group_id": "CSAFGID-0001",
        "product_ids": [
          "CSAFPID-11001",
          "CSAFPID-11002"
        ],
        "summary": "Affected products."
      },
      {
        "group_id": "CSAFGID-0002",
        "product_ids": [
          "CSAFPID-12001",
          "CSAFPID-12002"
        ],
        "summary": "Fixed products."
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2019-5637",
      "cwe": {
        "id": "CWE-369",
        "name": "Divide By Zero"
      },
      "notes": [
        {
          "audience": "all",
          "category": "description",
          "text": "When Beckhoff TwinCAT is configured to use the Profinet driver, a denial of service of the controller could be reached by sending a malformed UDP packet to the device. This issue affects TwinCAT 2 version 2304 (and prior) and TwinCAT 3.1 version 4204.0 (and prior).",
          "title": "Vulnerability Description"
        }
      ],
      "product_status": {
        "fixed": [
          "CSAFPID-12001",
          "CSAFPID-12002"
        ],
        "known_affected": [
          "CSAFPID-11001",
          "CSAFPID-11002"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Profinet could be blocked in perimeter firewall to block PROFINET DCP packets from untrusted networks to the device.\n\nBeckhoff will provide updates for the mentioned TwinCAT Versions.",
          "entitlements": [
            "Please contact your support representative for this particular firmware package and update the corresponding product."
          ],
          "group_ids": [
            "CSAFGID-0001"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "environmentalScore": 7.5,
            "environmentalSeverity": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 7.5,
            "temporalSeverity": "HIGH",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-11001",
            "CSAFPID-11002"
          ]
        }
      ],
      "title": "CVE-2019-5637"
    }
  ]
}