{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2021-41104",
        "STATE": "PUBLIC",
        "TITLE": "web_server allows OTA update without checking user defined basic auth username & password"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "esphome",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "< 2021.9.2"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "esphome"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "ESPHome is a system to control the ESP8266/ESP32. Anyone with web_server enabled and HTTP basic auth configured on version 2021.9.1 or older is vulnerable to an issue in which `web_server` allows over-the-air (OTA) updates without checking user defined basic auth username & password. This issue is patched in version 2021.9.2. As a workaround, one may disable or remove `web_server`."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-306: Missing Authentication for Critical Function"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/esphome/esphome/security/advisories/GHSA-48mj-p7x2-5jfm",
                "refsource": "CONFIRM",
                "url": "https://github.com/esphome/esphome/security/advisories/GHSA-48mj-p7x2-5jfm"
            },
            {
                "name": "https://github.com/esphome/esphome/pull/2409/commits/207cde1667d8c799a197b78ca8a5a14de8d5ca1e",
                "refsource": "MISC",
                "url": "https://github.com/esphome/esphome/pull/2409/commits/207cde1667d8c799a197b78ca8a5a14de8d5ca1e"
            },
            {
                "name": "https://github.com/esphome/esphome/releases/tag/2021.9.2",
                "refsource": "MISC",
                "url": "https://github.com/esphome/esphome/releases/tag/2021.9.2"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-48mj-p7x2-5jfm",
        "discovery": "UNKNOWN"
    }
}