cvelist/2021/32xxx/CVE-2021-32986.json

{
    "CVE_data_meta": {
        "ASSIGNER": "ics-cert@hq.dhs.gov",
        "ID": "CVE-2021-32986",
        "STATE": "PUBLIC",
        "TITLE": "Automation Direct CLICK PLC CPU Modules Authentication Bypass Using an Alternate Path or Channel"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "CLICK PLC CPU Modules: C0-1x CPUs",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_value": "3.00"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Automation Direct"
                }
            ]
        }
    },
    "credit": [
        {
            "lang": "eng",
            "value": "Irfan Ahmed and Adeen Ayub of Virginia Commonwealth University and Hyunguk Yoo of the University of New Orleans reported these vulnerabilities to Automation Direct."
        }
    ],
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "After Automation Direct CLICK PLC CPU Modules: C0-1x CPUs with firmware prior to v3.00 is unlocked by an authorized user, the unlocked state does not timeout. If the programming software is interrupted, the PLC remains unlocked. All subsequent programming connections are allowed without authorization. The PLC is only relocked by a power cycle, or when the programming software disconnects correctly."
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.0.9"
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-288: Authentication Bypass Using an Alternate Path or Channel"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-166-02",
                "refsource": "CONFIRM",
                "url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-166-02"
            }
        ]
    },
    "solution": [
        {
            "lang": "eng",
            "value": "Automation Direct reports these vulnerabilities are all mitigated by Version 3.00 and recommends users update software and firmware to the latest version.\n\nAutomation Direct also recommends users follow its security guidelines."
        }
    ],
    "source": {
        "advisory": "ICSA-21-166-02",
        "discovery": "EXTERNAL"
    }
}