{ "id": "CVE-2023-45660", "sourceIdentifier": "security-advisories@github.com", "published": "2023-10-16T19:15:11.060", "lastModified": "2023-10-20T12:18:07.003", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "Nextcloud mail is an email app for the Nextcloud home server platform. In affected versions a missing check of origin, target and cookies allows for an attacker to abuse the proxy endpoint to denial of service a third server. It is recommended that the Nextcloud Mail is upgraded to 2.2.8 or 3.3.0. There are no known workarounds for this vulnerability." }, { "lang": "es", "value": "Nextcloud mail es una aplicaci\u00f3n de correo electr\u00f3nico para la plataforma de servidor dom\u00e9stico Nextcloud. En las versiones afectadas, la falta de verificaci\u00f3n de origen, destino y cookies permite a un atacante abusar del endpoint del proxy para negar el servicio a un tercer servidor. Se recomienda actualizar Nextcloud Mail a 2.2.8 o 3.3.0. No se conocen workarounds 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:N/I:N/A:L", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "LOW", "baseScore": 4.3, "baseSeverity": "MEDIUM" }, "exploitabilityScore": 2.8, "impactScore": 1.4 }, { "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:N/I:N/A:L", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "LOW", "baseScore": 4.3, "baseSeverity": "MEDIUM" }, "exploitabilityScore": 2.8, "impactScore": 1.4 } ] }, "weaknesses": [ { "source": "security-advisories@github.com", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-918" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:nextcloud:mail:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.2.0", "versionEndExcluding": "2.2.8", "matchCriteriaId": "C39C0C2A-42B6-406A-83E6-F27F6D7A51EA" }, { "vulnerable": true, "criteria": "cpe:2.3:a:nextcloud:mail:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.0.0", "versionEndExcluding": "3.3.0", "matchCriteriaId": "98F3704F-323A-4BC4-BC5F-259C8648CB97" } ] } ] } ], "references": [ { "url": "https://github.com/nextcloud/mail/pull/8459", "source": "security-advisories@github.com", "tags": [ "Issue Tracking", "Patch" ] }, { "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8j9x-fmww-qr37", "source": "security-advisories@github.com", "tags": [ "Vendor Advisory" ] }, { "url": "https://hackerone.com/reports/1895874", "source": "security-advisories@github.com", "tags": [ "Third Party Advisory" ] } ] }