{ "id": "CVE-2021-32800", "sourceIdentifier": "security-advisories@github.com", "published": "2021-09-07T22:15:08.417", "lastModified": "2022-09-27T14:18:43.217", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "Nextcloud server is an open source, self hosted personal cloud. In affected versions an attacker is able to bypass Two Factor Authentication in Nextcloud. Thus knowledge of a password, or access to a WebAuthN trusted device of a user was sufficient to gain access to an account. It is recommended that the Nextcloud Server is upgraded to 20.0.12, 21.0.4 or 22.1.0. There are no workaround for this vulnerability." }, { "lang": "es", "value": "El servidor Nextcloud es una nube personal de c\u00f3digo abierto y autoalojada. En las versiones afectadas, un atacante es capaz de omitir la autenticaci\u00f3n de dos factores en Nextcloud. As\u00ed, el conocimiento de una contrase\u00f1a, o el acceso a un dispositivo confiable WebAuthN de un usuario era suficiente para conseguir acceso a una cuenta. Es recomendado actualizar el servidor Nextcloud a versi\u00f3n 20.0.12, 21.0.4 o 22.1.0. No se presentan soluciones para esta vulnerabilidad" } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseScore": 8.1, "baseSeverity": "HIGH" }, "exploitabilityScore": 2.8, "impactScore": 5.2 }, { "source": "security-advisories@github.com", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseScore": 8.1, "baseSeverity": "HIGH" }, "exploitabilityScore": 2.8, "impactScore": 5.2 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:N", "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "NONE", "baseScore": 6.4 }, "baseSeverity": "MEDIUM", "exploitabilityScore": 10.0, "impactScore": 4.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "security-advisories@github.com", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-306" } ] }, { "source": "nvd@nist.gov", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-306" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*", "versionEndExcluding": "20.0.12", "matchCriteriaId": "68C08D05-1FEC-4A5B-8925-B8D910541CEE" }, { "vulnerable": true, "criteria": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*", "versionStartIncluding": "21.0.0", "versionEndExcluding": "21.0.4", "matchCriteriaId": "B1D99183-A99E-4C56-991A-D4287EEDFE79" }, { "vulnerable": true, "criteria": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*", "versionStartIncluding": "22.0.0", "versionEndExcluding": "22.1.0", "matchCriteriaId": "655A23FE-6908-4F26-878C-29F9F2D269A6" } ] } ] } ], "references": [ { "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-gv5w-8q25-785v", "source": "security-advisories@github.com", "tags": [ "Third Party Advisory" ] }, { "url": "https://github.com/nextcloud/server/pull/28078", "source": "security-advisories@github.com", "tags": [ "Patch", "Third Party Advisory" ] }, { "url": "https://hackerone.com/reports/1271052", "source": "security-advisories@github.com", "tags": [ "Permissions Required", "Third Party Advisory" ] }, { "url": "https://security.gentoo.org/glsa/202208-17", "source": "security-advisories@github.com", "tags": [ "Third Party Advisory" ] } ] }