{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ID": "CVE-2019-3977",
        "ASSIGNER": "vulnreport@tenable.com",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "n/a",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "MikroTik RouterOS",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "RouterOS 6.45.6 Stable and below. RouterOS 6.44.5 Long-term and below."
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-494 Insufficient checks on origin"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "name": "https://www.tenable.com/security/research/tra-2019-46",
                "url": "https://www.tenable.com/security/research/tra-2019-46"
            }
        ]
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "RouterOS 6.45.6 Stable, RouterOS 6.44.5 Long-term, and below insufficiently validate where upgrade packages are download from when using the autoupgrade feature. Therefore, a remote attacker can trick the router into \"upgrading\" to an older version of RouterOS and possibly reseting all the system's usernames and passwords."
            }
        ]
    }
}