CVE-2023-41895

{"id": "CVE-2023-41895", "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 9.6, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 2.8}, {"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "published": "2023-10-19T23:15:08.450", "references": [{"url": "https://github.com/home-assistant/core/security/advisories/GHSA-jvxq-x42r-f7mv", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-79"}]}, {"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "Home assistant is an open source home automation. The Home Assistant login page allows users to use their local Home Assistant credentials and log in to another website that specifies the `redirect_uri` and `client_id` parameters. Although the `redirect_uri` validation typically ensures that it matches the `client_id` and the scheme represents either `http` or `https`, Home Assistant will fetch the `client_id` and check for `<link rel=\"redirect_uri\" href=\"...\">` HTML tags on the page. These URLs are not subjected to the same scheme validation and thus allow for arbitrary JavaScript execution on the Home Assistant administration page via usage of `javascript:` scheme URIs. This Cross-site Scripting (XSS) vulnerability can be executed on the Home Assistant frontend domain, which may be used for a full takeover of the Home Assistant account and installation. This issue has been addressed in version 2023.9.0 and all users are advised to upgrade. There are no known workarounds for this vulnerability."}, {"lang": "es", "value": "Home Assistant es una dom\u00f3tica de c\u00f3digo abierto. La p\u00e1gina de inicio de sesi\u00f3n de Home Assistant permite a los usuarios utilizar sus credenciales locales de Home Assistant e iniciar sesi\u00f3n en otro sitio web que especifique los par\u00e1metros `redirect_uri` y `client_id`. Aunque la validaci\u00f3n de `redirect_uri` generalmente garantiza que coincide con `client_id` y el esquema representa `http` o `https`, Home Assistant buscar\u00e1 `client_id` y buscar\u00e1 `` Etiquetas HTML en la p\u00e1gina. Estas URL no est\u00e1n sujetas a la misma validaci\u00f3n de esquema y, por lo tanto, permiten la ejecuci\u00f3n arbitraria de JavaScript en la p\u00e1gina de administraci\u00f3n de Home Assistant mediante el uso de URI de esquema `javascript:`. Esta vulnerabilidad de Cross-Site Scripting (XSS) se puede ejecutar en el dominio frontend de Home Assistant, que puede usarse para tomar el control completo de la cuenta e instalaci\u00f3n de Home Assistant. Este problema se solucion\u00f3 en la versi\u00f3n 2023.9.0 y se recomienda a todos los usuarios que actualicen. No se conocen workarounds para esta vulnerabilidad."}], "lastModified": "2023-10-26T16:30:16.850", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:home-assistant:home-assistant:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C469208E-F2FD-4DCB-B5EE-0CBCD199142A", "versionEndExcluding": "2023.9.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}