CVE-2017-6679

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2017-6679", "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "assignerShortName": "cisco", "dateUpdated": "2024-08-05T15:33:20.478Z", "dateReserved": "2017-03-09T00:00:00.000Z", "datePublished": "2017-12-01T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco", "dateUpdated": "2023-08-17T18:06:50.353Z"}, "descriptions": [{"lang": "en", "value": "The Cisco Umbrella Virtual Appliance Version 2.0.3 and prior contained an undocumented encrypted remote support tunnel (SSH) which auto initiated from the customer's appliance to Cisco's SSH Hubs in the Umbrella datacenters. These tunnels were primarily leveraged for remote support and allowed for authorized/authenticated personnel from the Cisco Umbrella team to access the appliance remotely and obtain full control without explicit customer approval. To address this vulnerability, the Umbrella Virtual Appliance version 2.1.0 now requires explicit customer approval before an SSH tunnel from the VA to the Cisco terminating server can be established."}], "affected": [{"vendor": "n/a", "product": "Cisco Umbrella Virtual Appliance Version 2.0.3 and prior", "versions": [{"version": "Cisco Umbrella Virtual Appliance Version 2.0.3 and prior", "status": "affected"}]}], "references": [{"url": "https://www.info-sec.ca/advisories/Cisco-Umbrella.html"}, {"url": "https://support.umbrella.com/hc/en-us/articles/115004752143-Virtual-Appliance-Vulnerability-due-to-always-on-SSH-Tunnel-RESOLVED-2017-09-15"}, {"name": "101567", "tags": ["vdb-entry"], "url": "http://www.securityfocus.com/bid/101567"}, {"url": "https://support.umbrella.com/hc/en-us/articles/115004154423"}, {"name": "20230816 Cisco Umbrella Virtual Appliance Undocumented Support Tunnel Vulnerability", "tags": ["vendor-advisory"], "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-umbrella-tunnel-gJw5thgE"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "undocumented encrypted remote support tunnel"}]}], "datePublic": "2017-12-01T00:00:00.000Z"}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T15:33:20.478Z"}, "title": "CVE Program Container", "references": [{"url": "https://www.info-sec.ca/advisories/Cisco-Umbrella.html", "tags": ["x_transferred"]}, {"url": "https://support.umbrella.com/hc/en-us/articles/115004752143-Virtual-Appliance-Vulnerability-due-to-always-on-SSH-Tunnel-RESOLVED-2017-09-15", "tags": ["x_transferred"]}, {"name": "101567", "tags": ["vdb-entry", "x_transferred"], "url": "http://www.securityfocus.com/bid/101567"}, {"url": "https://support.umbrella.com/hc/en-us/articles/115004154423", "tags": ["x_transferred"]}, {"name": "20230816 Cisco Umbrella Virtual Appliance Undocumented Support Tunnel Vulnerability", "tags": ["vendor-advisory", "x_transferred"], "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-umbrella-tunnel-gJw5thgE"}]}]}}

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{"affected": [{"affectedData": [{"product": "Cisco Umbrella Virtual Appliance Version 2.0.3 and prior", "vendor": "n/a", "versions": [{"status": "affected", "version": "Cisco Umbrella Virtual Appliance Version 2.0.3 and prior"}]}], "source": "psirt@cisco.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:cisco:umbrella_virtual_appliance:*:*:*:*:*:*:*:*", "matchCriteriaId": "400E97D8-5172-424E-BFC1-15EB9DB92372", "versionEndExcluding": "2.1.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The Cisco Umbrella Virtual Appliance Version 2.0.3 and prior contained an undocumented encrypted remote support tunnel (SSH) which auto initiated from the customer's appliance to Cisco's SSH Hubs in the Umbrella datacenters. These tunnels were primarily leveraged for remote support and allowed for authorized/authenticated personnel from the Cisco Umbrella team to access the appliance remotely and obtain full control without explicit customer approval. To address this vulnerability, the Umbrella Virtual Appliance version 2.1.0 now requires explicit customer approval before an SSH tunnel from the VA to the Cisco terminating server can be established."}, {"lang": "es", "value": "Cisco Umbrella Virtual Appliance en sus versiones 2.0.3 y anteriores conten\u00edan un t\u00fanel de soporte remoto cifrado sin documentar (SSH) que se iniciaba autom\u00e1ticamente desde la m\u00e1quina del cliente a los hubs SSH de Cisco en los CPD de Umbrella. Estos t\u00faneles se utilizaban en principio para proporcionar soporte remoto y permit\u00edan al personal autorizado/autenticado del equipo de Cisco Umbrella para que accediesen a la m\u00e1quina remotamente y obtuvieses el control total sin la aprobaci\u00f3n expl\u00edcita del cliente. Para resolver esta vulnerabilidad, la versi\u00f3n 2.1.0 de Umbrella Virtual Appliance ahora necesita la aprobaci\u00f3n expl\u00edcita del cliente antes de que se pueda establecer un t\u00fanel SSH desde la m\u00e1quina virtual al servidor destino de Cisco."}], "id": "CVE-2017-6679", "lastModified": "2026-06-22T13:52:20.520", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "HIGH", "accessVector": "LOCAL", "authentication": "SINGLE", "availabilityImpact": "COMPLETE", "baseScore": 6.0, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:L/AC:H/Au:S/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 1.5, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 0.5, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2017-12-01T17:29:00.667", "references": [{"source": "psirt@cisco.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/101567"}, {"source": "psirt@cisco.com", "tags": ["Vendor Advisory"], "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-umbrella-tunnel-gJw5thgE"}, {"source": "psirt@cisco.com", "tags": ["Third Party Advisory"], "url": "https://support.umbrella.com/hc/en-us/articles/115004154423"}, {"source": "psirt@cisco.com", "tags": ["Third Party Advisory"], "url": "https://support.umbrella.com/hc/en-us/articles/115004752143-Virtual-Appliance-Vulnerability-due-to-always-on-SSH-Tunnel-RESOLVED-2017-09-15"}, {"source": "psirt@cisco.com", "tags": ["Third Party Advisory"], "url": "https://www.info-sec.ca/advisories/Cisco-Umbrella.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/101567"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-umbrella-tunnel-gJw5thgE"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://support.umbrella.com/hc/en-us/articles/115004154423"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://support.umbrella.com/hc/en-us/articles/115004752143-Virtual-Appliance-Vulnerability-due-to-always-on-SSH-Tunnel-RESOLVED-2017-09-15"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.info-sec.ca/advisories/Cisco-Umbrella.html"}], "sourceIdentifier": "psirt@cisco.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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