CVE-2020-8156

{"containers": {"cna": {"affected": [{"product": "Nextcloud Mail", "vendor": "n/a", "versions": [{"status": "affected", "version": "1.1.4"}]}], "descriptions": [{"lang": "en", "value": "A missing verification of the TLS host in Nextcloud Mail 1.1.3 allowed a man in the middle attack."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-295", "description": "Improper Certificate Validation (CWE-295)", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2020-10-19T18:06:21.000Z", "orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "shortName": "hackerone"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://nextcloud.com/security/advisory/?id=NC-SA-2020-020"}, {"name": "FEDORA-2020-c9863904de", "tags": ["vendor-advisory", "x_refsource_FEDORA"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KC6HLX5SG4PZO6Y54D2LFJ4ATG76BKOP/"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "support@hackerone.com", "ID": "CVE-2020-8156", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Nextcloud Mail", "version": {"version_data": [{"version_value": "1.1.4"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A missing verification of the TLS host in Nextcloud Mail 1.1.3 allowed a man in the middle attack."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Improper Certificate Validation (CWE-295)"}]}]}, "references": {"reference_data": [{"name": "https://nextcloud.com/security/advisory/?id=NC-SA-2020-020", "refsource": "MISC", "url": "https://nextcloud.com/security/advisory/?id=NC-SA-2020-020"}, {"name": "FEDORA-2020-c9863904de", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KC6HLX5SG4PZO6Y54D2LFJ4ATG76BKOP/"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T09:48:25.674Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://nextcloud.com/security/advisory/?id=NC-SA-2020-020"}, {"name": "FEDORA-2020-c9863904de", "tags": ["vendor-advisory", "x_refsource_FEDORA", "x_transferred"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KC6HLX5SG4PZO6Y54D2LFJ4ATG76BKOP/"}]}]}, "cveMetadata": {"assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1", "assignerShortName": "hackerone", "cveId": "CVE-2020-8156", "datePublished": "2020-05-12T13:01:22.000Z", "dateReserved": "2020-01-28T00:00:00.000Z", "dateUpdated": "2024-08-04T09:48:25.674Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "Nextcloud Mail", "vendor": "n/a", "versions": [{"status": "affected", "version": "1.1.4"}]}], "source": "support@hackerone.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:nextcloud:mail:*:*:*:*:*:*:*:*", "matchCriteriaId": "CD7DB214-639A-4E44-B78F-C2D9753C8D8D", "versionEndExcluding": "1.1.4", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*", "matchCriteriaId": "36D96259-24BD-44E2-96D9-78CE1D41F956", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A missing verification of the TLS host in Nextcloud Mail 1.1.3 allowed a man in the middle attack."}, {"lang": "es", "value": "Una falta de verificaci\u00f3n del host TLS en Nextcloud Mail versi\u00f3n 1.1.3, permiti\u00f3 un ataque de tipo man-in-the-middle."}], "id": "CVE-2020-8156", "lastModified": "2026-06-17T03:25:57.450", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 4.7, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-05-12T13:15:13.187", "references": [{"source": "support@hackerone.com", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KC6HLX5SG4PZO6Y54D2LFJ4ATG76BKOP/"}, {"source": "support@hackerone.com", "tags": ["Vendor Advisory"], "url": "https://nextcloud.com/security/advisory/?id=NC-SA-2020-020"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KC6HLX5SG4PZO6Y54D2LFJ4ATG76BKOP/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://nextcloud.com/security/advisory/?id=NC-SA-2020-020"}], "sourceIdentifier": "support@hackerone.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-295"}], "source": "support@hackerone.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-295"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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