CVE-2020-15077

{"containers": {"cna": {"affected": [{"product": "OpenVPN Access Server", "vendor": "n/a", "versions": [{"status": "affected", "version": "2.8.7 and earlier versions"}]}], "descriptions": [{"lang": "en", "value": "OpenVPN Access Server 2.8.7 and earlier versions allows a remote attackers to bypass authentication and access control channel data on servers configured with deferred authentication, which can be used to potentially trigger further information leaks."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-305", "description": "CWE-305: Authentication Bypass by Primary Weakness", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-06-04T10:42:01.000Z", "orgId": "36a55730-e66d-4d39-8ca6-3c3b3017965e", "shortName": "OpenVPN"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://openvpn.net/vpn-server-resources/release-notes/"}, {"tags": ["x_refsource_MISC"], "url": "https://openvpn.net/security-advisory/access-server-security-update-cve-2020-15077/"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@openvpn.net", "ID": "CVE-2020-15077", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "OpenVPN Access Server", "version": {"version_data": [{"version_value": "2.8.7 and earlier versions"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "OpenVPN Access Server 2.8.7 and earlier versions allows a remote attackers to bypass authentication and access control channel data on servers configured with deferred authentication, which can be used to potentially trigger further information leaks."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-305: Authentication Bypass by Primary Weakness"}]}]}, "references": {"reference_data": [{"name": "https://openvpn.net/vpn-server-resources/release-notes/", "refsource": "MISC", "url": "https://openvpn.net/vpn-server-resources/release-notes/"}, {"name": "https://openvpn.net/security-advisory/access-server-security-update-cve-2020-15077/", "refsource": "MISC", "url": "https://openvpn.net/security-advisory/access-server-security-update-cve-2020-15077/"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T13:08:21.878Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://openvpn.net/vpn-server-resources/release-notes/"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://openvpn.net/security-advisory/access-server-security-update-cve-2020-15077/"}]}]}, "cveMetadata": {"assignerOrgId": "36a55730-e66d-4d39-8ca6-3c3b3017965e", "assignerShortName": "OpenVPN", "cveId": "CVE-2020-15077", "datePublished": "2021-06-04T10:42:01.000Z", "dateReserved": "2020-06-25T00:00:00.000Z", "dateUpdated": "2024-08-04T13:08:21.878Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"affected": [{"affectedData": [{"product": "OpenVPN Access Server", "vendor": "n/a", "versions": [{"status": "affected", "version": "2.8.7 and earlier versions"}]}], "source": "security@openvpn.net"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:openvpn:openvpn_access_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "FFB7CAB1-ECA3-4F8F-9DFD-048BD7ABE8E0", "versionEndIncluding": "2.8.7", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "OpenVPN Access Server 2.8.7 and earlier versions allows a remote attackers to bypass authentication and access control channel data on servers configured with deferred authentication, which can be used to potentially trigger further information leaks."}, {"lang": "es", "value": "OpenVPN Access Server versiones 2.8.7 y anteriores, permiten a atacantes remotos omitir la autenticaci\u00f3n y los datos del canal de control de acceso en servidores configurados con autenticaci\u00f3n diferida, que puede ser usado para desencadenar potencialmente nuevos filtrados de informaci\u00f3n"}], "id": "CVE-2020-15077", "lastModified": "2026-06-17T02:56:00.767", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 3.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:S/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 6.8, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-06-04T11:15:07.697", "references": [{"source": "security@openvpn.net", "tags": ["Vendor Advisory"], "url": "https://openvpn.net/security-advisory/access-server-security-update-cve-2020-15077/"}, {"source": "security@openvpn.net", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://openvpn.net/vpn-server-resources/release-notes/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://openvpn.net/security-advisory/access-server-security-update-cve-2020-15077/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://openvpn.net/vpn-server-resources/release-notes/"}], "sourceIdentifier": "security@openvpn.net", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-305"}], "source": "security@openvpn.net", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-287"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

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