CVE-2020-3205

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The vulnerability is due to insufficient validation of signaling packets that are destined to VDS. An attacker could exploit this vulnerability by sending malicious packets to an affected device. A successful exploit could allow the attacker to execute arbitrary commands in the context of the Linux shell of VDS with the privileges of the root user. Because the device is designed on a hypervisor architecture, exploitation of a vulnerability that affects the inter-VM channel may lead to a complete system compromise. For more information about this vulnerability, see the Details section of this advisory."}, {"lang": "es", "value": "Una vulnerabilidad en la implementaci\u00f3n del canal inter-VM de Cisco IOS Software para Cisco 809 y 829 Industrial Integrated Services Routers (Industrial ISRs) y Cisco 1000 Series Connected Grid Routers (CGR1000) podr\u00eda permitir a un atacante adyacente no autenticado ejecutar comandos de shell arbitrarios en el Virtual Device Server (VDS) de un dispositivo afectado. La vulnerabilidad es debido a una comprobaci\u00f3n insuficiente de los paquetes de se\u00f1alizaci\u00f3n destinados a VDS. Un atacante podr\u00eda explotar esta vulnerabilidad mediante el env\u00edo de paquetes maliciosos hacia un dispositivo afectado. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir a un atacante ejecutar comandos arbitrarios en el contexto del shell de VDS de Linux con los privilegios del usuario root. Debido a que el dispositivo est\u00e1 dise\u00f1ado en una arquitectura de hypervisor, la explotaci\u00f3n de una vulnerabilidad que afecta el canal inter-VM puede conllevar a un compromiso completo del sistema. Para mayor informaci\u00f3n sobre esta vulnerabilidad, ver la secci\u00f3n de Detalles de este aviso."}], "id": "CVE-2020-3205", "lastModified": "2026-06-17T03:17:38.607", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "ADJACENT_NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 8.3, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:A/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 6.5, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "psirt@cisco.com", "type": "Secondary"}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2020-3205", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2024-11-15T16:24:37.361821Z", "version": "2.0.3"}}]}, "published": "2020-06-03T18:15:18.573", "references": [{"source": "psirt@cisco.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-iot-udp-vds-inj-f2D5Jzrt"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-iot-udp-vds-inj-f2D5Jzrt"}], "sourceIdentifier": "psirt@cisco.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "psirt@cisco.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-78"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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