{
    "CVE_data_meta": {
        "ASSIGNER": "info@cert.vde.com",
        "DATE_PUBLIC": "2021-11-04T06:00:00.000Z",
        "ID": "CVE-2021-34594",
        "STATE": "PUBLIC",
        "TITLE": "Beckhoff: Relative path traversal vulnerability through TwinCAT OPC UA Server"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "TwinCAT OPC UA Server",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "TF6100",
                                            "version_value": "4.3.48.0"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "TS6100",
                                            "version_value": "4.3.48.0"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "TcOpcUaServer version",
                                            "version_value": "3.2.0.19423"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Beckhoff Automation"
                }
            ]
        }
    },
    "credit": [
        {
            "lang": "eng",
            "value": "Beckhoff Automation thanks Johannes Olegård, Emre Süren, and Robert Lagerström for reporting the issue and for support and efforts with the coordinated disclosure."
        }
    ],
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "TwinCAT OPC UA Server in TF6100 and TS6100 in product versions before 4.3.48.0 or with TcOpcUaServer versions below 3.2.0.194 are prone to a relative path traversal that allow administrators to create or delete any files on the system."
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.0.9"
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-23 Relative Path Traversal"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://cert.vde.com/en/advisories/VDE-2021-051/",
                "refsource": "CONFIRM",
                "url": "https://cert.vde.com/en/advisories/VDE-2021-051/"
            }
        ]
    },
    "solution": [
        {
            "lang": "eng",
            "value": "Please update to a recent version of the affected product (TF6100 or TS6100 version >= 4.3.48.0)"
        }
    ],
    "source": {
        "advisory": "VDE-2021-051",
        "discovery": "EXTERNAL"
    }
}