{
    "document": {
        "acknowledgments": [
            {
                "organization": "CERT@VDE",
                "summary": "coordination",
                "urls": [
                    "https://certvde.com"
                ]
            },
            {
                "organization": "Rapid7",
                "summary": "coordination",
                "names": [
                    "Andreas Galauner"
                ]
            }
        ],
        "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",
            "name": "Beckhoff Automation GmbH & Co. KG",
            "namespace": "https://www.beckhoff.com",
            "contact_details": "product-securityincident@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"
            },
            {
                "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",
                "category": "self"
            }
        ],
        "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"
                },
                {
                    "number": "3",
                    "summary": "Fix: version range",
                    "date": "2025-04-11T07:00:00.000Z"
                },
                {
                    "number": "4",
                    "summary": "Fix: added distribution",
                    "date": "2025-05-14T13:00:14.000Z"
                }
            ],
            "status": "final",
            "version": "4"
        }
    },
    "product_tree": {
        "branches": [
            {
                "branches": [
                    {
                        "category": "product_family",
                        "name": "Software",
                        "branches": [
                            {
                                "category": "product_family",
                                "name": "TwinCAT",
                                "branches": [
                                    {
                                        "product": {
                                            "product_id": "CSAFPID-11001",
                                            "name": "TwinCAT <=2304"
                                        },
                                        "category": "product_version_range",
                                        "name": "<=2304"
                                    },
                                    {
                                        "name": "<=4204.0",
                                        "product": {
                                            "product_id": "CSAFPID-11002",
                                            "name": "TwinCAT <=4204.0"
                                        },
                                        "category": "product_version_range"
                                    },
                                    {
                                        "category": "product_version",
                                        "name": "2305",
                                        "product": {
                                            "product_id": "CSAFPID-12001",
                                            "name": "TwinCAT 2305"
                                        }
                                    },
                                    {
                                        "category": "product_version",
                                        "name": "4204.1",
                                        "product": {
                                            "name": "TwinCAT 4204.1",
                                            "product_id": "CSAFPID-12002"
                                        }
                                    }
                                ]
                            }
                        ]
                    }
                ],
                "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",
            "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",
            "cwe": {
                "id": "CWE-369",
                "name": "Divide By Zero"
            }
        }
    ]
}