CVE-2020-1955

{"id": "CVE-2020-1955", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2020-05-20T14:15:11.550", "references": [{"url": "https://docs.couchdb.org/en/master/cve/2020-1955.html", "tags": ["Mitigation", "Vendor Advisory"], "source": "security@apache.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-306"}]}], "descriptions": [{"lang": "en", "value": "CouchDB version 3.0.0 shipped with a new configuration setting that governs access control to the entire database server called `require_valid_user_except_for_up`. It was meant as an extension to the long standing setting `require_valid_user`, which in turn requires that any and all requests to CouchDB will have to be made with valid credentials, effectively forbidding any anonymous requests. The new `require_valid_user_except_for_up` is an off-by-default setting that was meant to allow requiring valid credentials for all endpoints except for the `/_up` endpoint. However, the implementation of this made an error that lead to not enforcing credentials on any endpoint, when enabled. CouchDB versions 3.0.1[1] and 3.1.0[2] fix this issue."}, {"lang": "es", "value": "CouchDB versi\u00f3n 3.0.0, es enviada con una nueva configuraci\u00f3n que rige el control de acceso a todo el servidor de base de datos llamada \"require_valid_user_except_for_up\". Se supon\u00eda que una extensi\u00f3n del antiguo ajuste \"require_valid_user\", que a su vez requiere que todas y cada una de las peticiones hacia CouchDB tengan que hacerse con credenciales v\u00e1lidas, prohibiendo efectivamente cualquier petici\u00f3n an\u00f3nima. El nuevo \"require_valid_user_except_for_up\" es un ajuste desactivado por defecto que se supone que permite requerir credenciales v\u00e1lidas para todos los endpoints excepto para el endpoint \"/_up\". Sin embargo, la implementaci\u00f3n de \u00e9ste cometi\u00f3 un error que conllev\u00f3 a no aplicar las credenciales sobre ning\u00fan endpoint, cuando estaba habilitado. CouchDB versiones 3.0.1[1] y 3.1.0[2] corrige este problema."}], "lastModified": "2021-07-21T11:39:23.747", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:apache:couchdb:3.0.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6CF039B4-F4AB-4A07-9BE5-5FA7C73A23B4"}], "operator": "OR"}]}], "sourceIdentifier": "security@apache.org"}