{"containers": {"cna": {"affected": [{"product": "Nextcloud Server", "vendor": "Nextcloud", "versions": [{"status": "affected", "version": "All versions before 9.0.55 and 10.0.2"}]}], "datePublic": "2017-02-05T00:00:00", "descriptions": [{"lang": "en", "value": "Nextcloud Server before 9.0.55 and 10.0.2 suffers from a permission increase on re-sharing via OCS API issue. A permission related issue within the OCS sharing API allowed an authenticated adversary to reshare shared files with an increasing permission set. This may allow an attacker to edit files in a share despite having only a 'read' permission set. Note that this only affects folders and files that the adversary has at least read-only permissions for."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-275", "description": "Permission Issues (CWE-275)", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2017-04-05T19:57:01", "orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "shortName": "hackerone"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://nextcloud.com/security/advisory/?id=nc-sa-2017-001"}, {"tags": ["x_refsource_MISC"], "url": "https://hackerone.com/reports/169680"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "support@hackerone.com", "ID": "CVE-2017-0883", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Nextcloud Server", "version": {"version_data": [{"version_value": "All versions before 9.0.55 and 10.0.2"}]}}]}, "vendor_name": "Nextcloud"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Nextcloud Server before 9.0.55 and 10.0.2 suffers from a permission increase on re-sharing via OCS API issue. A permission related issue within the OCS sharing API allowed an authenticated adversary to reshare shared files with an increasing permission set. This may allow an attacker to edit files in a share despite having only a 'read' permission set. Note that this only affects folders and files that the adversary has at least read-only permissions for."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Permission Issues (CWE-275)"}]}]}, "references": {"reference_data": [{"name": "https://nextcloud.com/security/advisory/?id=nc-sa-2017-001", "refsource": "CONFIRM", "url": "https://nextcloud.com/security/advisory/?id=nc-sa-2017-001"}, {"name": "https://hackerone.com/reports/169680", "refsource": "MISC", "url": "https://hackerone.com/reports/169680"}]}}}}, "cveMetadata": {"assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "assignerShortName": "hackerone", "cveId": "CVE-2017-0883", "datePublished": "2017-04-05T20:00:00", "dateReserved": "2016-11-30T00:00:00", "dateUpdated": "2017-04-05T19:57:01", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.0"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "49A0184E-41CF-4966-9042-DD20F5F6492B", "versionEndIncluding": "9.0.54", "vulnerable": true}, {"criteria": "cpe:2.3:a:nextcloud:nextcloud_server:10.0.2:*:*:*:*:*:*:*", "matchCriteriaId": "DB0199F0-45EC-4745-BF5A-001A54029781", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "Nextcloud Server before 9.0.55 and 10.0.2 suffers from a permission increase on re-sharing via OCS API issue. A permission related issue within the OCS sharing API allowed an authenticated adversary to reshare shared files with an increasing permission set. This may allow an attacker to edit files in a share despite having only a 'read' permission set. Note that this only affects folders and files that the adversary has at least read-only permissions for."}, {"lang": "es", "value": "Nextcloud Server en versiones anteriores a 9.0.55 y 10.0.2 sufre un aumento de permiso al volver a compartir a trav\u00e9s del problema de la API de OCS compartiendo API permiti\u00f3 a un adversario autenticado compartir archivos compartidos con un conjunto de permisos creciente. Esto puede permitir que un atacante edite archivos en un recurso compartido a pesar de tener s\u00f3lo un conjunto de permisos 'le\u00eddo'. Tenga en cuenta que esto s\u00f3lo afecta a carpetas y archivos que el adversario tiene al menos permisos de s\u00f3lo lectura."}], "id": "CVE-2017-0883", "lastModified": "2019-10-09T23:21:07.367", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 5.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "version": "3.0"}, "exploitabilityScore": 3.1, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2017-04-05T20:59:00.197", "references": [{"source": "support@hackerone.com", "tags": ["Third Party Advisory"], "url": "https://hackerone.com/reports/169680"}, {"source": "support@hackerone.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://nextcloud.com/security/advisory/?id=nc-sa-2017-001"}], "sourceIdentifier": "support@hackerone.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-732"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-275"}], "source": "support@hackerone.com", "type": "Secondary"}]}

{}