CVE-2021-1588

{"id": "CVE-2021-1588", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.6, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 4.0, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "ykramarz@cisco.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.6, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 4.0, "exploitabilityScore": 3.9}]}, "published": "2021-08-25T20:15:11.537", "references": [{"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-mpls-oam-dos-sGO9x5GM", "tags": ["Patch", "Vendor Advisory"], "source": "ykramarz@cisco.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-125"}, {"lang": "en", "value": "CWE-20"}]}, {"type": "Secondary", "source": "ykramarz@cisco.com", "description": [{"lang": "en", "value": "CWE-126"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability in the MPLS Operation, Administration, and Maintenance (OAM) feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper input validation when an affected device is processing an MPLS echo-request or echo-reply packet. An attacker could exploit this vulnerability by sending malicious MPLS echo-request or echo-reply packets to an interface that is enabled for MPLS forwarding on the affected device. A successful exploit could allow the attacker to cause the MPLS OAM process to crash and restart multiple times, causing the affected device to reload and resulting in a DoS condition."}, {"lang": "es", "value": "Una vulnerabilidad en la funcionalidad Operation, Administration, and Maintenance (OAM) de MPLS del Software Cisco NX-OS, podr\u00eda permitir a un atacante remoto no autenticado causar una condici\u00f3n de denegaci\u00f3n de servicio (DoS) en un dispositivo afectado. Esta vulnerabilidad es debido a una comprobaci\u00f3n inapropiada de la entrada cuando un dispositivo afectado est\u00e1 procesando un paquete de eco-petici\u00f3n o eco-respuesta MPLS. Un atacante podr\u00eda explotar esta vulnerabilidad mediante el env\u00edo de paquetes maliciosos de eco-solicitud o eco-respuesta MPLS a una interfaz que est\u00e9 habilitada para el reenv\u00edo MPLS en el dispositivo afectado. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante causar que el proceso de MPLS OAM se bloquee y se reinicie varias veces, causando que el dispositivo afectado se recargue y resultando en una condici\u00f3n de DoS."}], "lastModified": "2023-11-07T03:28:43.003", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:cisco:nx-os:7.0\\(3\\)i7\\(9\\):*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4C1BC928-7DB9-499A-8CF4-90C98218E9D8"}, {"criteria": "cpe:2.3:o:cisco:nx-os:8.4\\(1\\):*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2636B1F1-8C40-44A4-B96B-C84EC244685E"}, {"criteria": "cpe:2.3:o:cisco:nx-os:9.3\\(7\\):*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C8A71DEB-93CD-4827-9F9E-3A0DFFAD145A"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:cisco:nexus_3000:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "10FFC5E8-CC5A-4D31-A63A-19E72EC442AB"}, {"criteria": 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