{
    "CVE_data_meta": {
        "ASSIGNER": "ics-cert@hq.dhs.gov",
        "DATE_PUBLIC": "2021-10-05T19:14:00.000Z",
        "ID": "CVE-2021-38399",
        "STATE": "PUBLIC",
        "TITLE": "Honeywell Experion PKS and ACE Controllers Relative Path Traversal"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Experion PKS",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "=",
                                            "version_value": "C200"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "C200E"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "C300"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "ACE controllers"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Honeywell"
                }
            ]
        }
    },
    "credit": [
        {
            "lang": "eng",
            "value": "Rei Henigman and Nadav Erez of Claroty reported these vulnerabilities to CISA."
        }
    ],
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Honeywell Experion PKS C200, C200E, C300, and ACE controllers are vulnerable to relative path traversal, which may allow an attacker access to unauthorized files and directories."
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.0.9"
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-23: Relative Path Traversal"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-278-04",
                "refsource": "CONFIRM",
                "url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-278-04"
            },
            {
                "name": "https://www.honeywellprocess.com/library/support/notifications/Customer/SN2021-02-22-01-Experion-C300-CCL.pdf",
                "refsource": "CONFIRM",
                "url": "https://www.honeywellprocess.com/library/support/notifications/Customer/SN2021-02-22-01-Experion-C300-CCL.pdf"
            }
        ]
    },
    "source": {
        "discovery": "EXTERNAL"
    },
    "work_around": [
        {
            "lang": "eng",
            "value": "Honeywell recommends users follow all guidance in the Experion Network and Security Planning Guide to prevent attacks by malicious actors.\n\nAdditional information can be found in Honeywell Support document SN2021-02-22-01."
        }
    ]
}