cvelist/2021/34xxx/CVE-2021-34593.json

{
    "CVE_data_meta": {
        "ASSIGNER": "info@cert.vde.com",
        "DATE_PUBLIC": "2021-10-25T14:00:00.000Z",
        "ID": "CVE-2021-34593",
        "STATE": "PUBLIC",
        "TITLE": "CODESYS V2 runtime: unauthenticated invalid requests may result in denial-of-service"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "CODESYS V2 ",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "Runtime Toolkit 32 bit full",
                                            "version_value": "V2.4.7.56"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "PLCWinNT",
                                            "version_value": "V2.4.7.56"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "CODESYS"
                }
            ]
        }
    },
    "credit": [
        {
            "lang": "eng",
            "value": "This issue was discovered by Steffen Robertz and Gerhard Hechenberger from the SEC Consult Vulnerability Lab."
        }
    ],
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56 unauthenticated crafted invalid requests may result in several denial-of-service conditions. Running PLC programs may be stopped, memory may be leaked, or further communication clients may be blocked from accessing the PLC."
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.0.9"
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "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"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-755 Improper Handling of Exceptional Conditions"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16877&token=8faab0fc1e069f4edfca5d5aba8146139f67a175&download=",
                "refsource": "CONFIRM",
                "url": "https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=16877&token=8faab0fc1e069f4edfca5d5aba8146139f67a175&download="
            },
            {
                "refsource": "FULLDISC",
                "name": "20211029 SEC Consult SA-20211028-0 :: Denial of Service in CODESYS V2",
                "url": "http://seclists.org/fulldisclosure/2021/Oct/64"
            },
            {
                "refsource": "MISC",
                "name": "http://packetstormsecurity.com/files/164716/CODESYS-2.4.7.0-Denial-Of-Service.html",
                "url": "http://packetstormsecurity.com/files/164716/CODESYS-2.4.7.0-Denial-Of-Service.html"
            },
            {
                "refsource": "MISC",
                "name": "http://packetstormsecurity.com/files/165874/WAGO-750-8xxx-PLC-Denial-Of-Service-User-Enumeration.html",
                "url": "http://packetstormsecurity.com/files/165874/WAGO-750-8xxx-PLC-Denial-Of-Service-User-Enumeration.html"
            }
        ]
    },
    "solution": [
        {
            "lang": "eng",
            "value": "CODESYS GmbH has released the following product versions to solve the noted vulnerability issue for the affected CODESYS products:\n * CODESYS Runtime Toolkit 32 bit full version V2.4.7.56\n * CODESYS PLCWinNT version V2.4.7.56. This will also be part of the CODESYS Development System setup version V2.3.9.68."
        }
    ],
    "source": {
        "defect": [
            "VDE-2021-049"
        ],
        "discovery": "EXTERNAL"
    }
}