fkie_cve-2021-1588
Vulnerability from fkie_nvd
Published
2021-08-25 20:15
Modified
2024-11-21 05:44
Severity ?
8.6 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
8.6 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Summary
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.
References
psirt@cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-mpls-oam-dos-sGO9x5GMPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-mpls-oam-dos-sGO9x5GMPatch, Vendor Advisory
Impacted products
Vendor Product Version
cisco nx-os 7.0\(3\)i7\(9\)
cisco nx-os 8.4\(1\)
cisco nx-os 9.3\(7\)
cisco nexus_3000 -
cisco nexus_3048 -
cisco nexus_31108pc-v -
cisco nexus_31108tc-v -
cisco nexus_31128pq -
cisco nexus_3132c-z -
cisco nexus_3132q-v -
cisco nexus_3132q-x\/3132q-xl -
cisco nexus_3164q -
cisco nexus_3172pq\/pq-xl -
cisco nexus_3172tq-xl -
cisco nexus_3232c -
cisco nexus_3264c-e -
cisco nexus_3264q -
cisco nexus_3408-s -
cisco nexus_34180yc -
cisco nexus_3432d-s -
cisco nexus_3464c -
cisco nexus_3524-x\/xl -
cisco nexus_3548-x\/xl -
cisco nexus_36180yc-r -
cisco nexus_3636c-r -
cisco nexus_7000_10-slot -
cisco nexus_7000_18-slot -
cisco nexus_7000_4-slot -
cisco nexus_7000_9-slot -
cisco nexus_9000v -
cisco nexus_92160yc-x -
cisco nexus_92300yc -
cisco nexus_92304qc -
cisco nexus_92348gc-x -
cisco nexus_9236c -
cisco nexus_9272q -
cisco nexus_93108tc-ex -
cisco nexus_93108tc-ex-24 -
cisco nexus_93108tc-fx -
cisco nexus_93108tc-fx-24 -
cisco nexus_93108tc-fx3p -
cisco nexus_93120tx -
cisco nexus_93128tx -
cisco nexus_9316d-gx -
cisco nexus_93180lc-ex -
cisco nexus_93180yc-ex -
cisco nexus_93180yc-ex-24 -
cisco nexus_93180yc-fx -
cisco nexus_93180yc-fx-24 -
cisco nexus_93180yc-fx3 -
cisco nexus_93180yc-fx3s -
cisco nexus_93216tc-fx2 -
cisco nexus_93240yc-fx2 -
cisco nexus_9332c -
cisco nexus_9332pq -
cisco nexus_93360yc-fx2 -
cisco nexus_9336c-fx2 -
cisco nexus_9336c-fx2-e -
cisco nexus_9348gc-fxp -
cisco nexus_93600cd-gx -
cisco nexus_9364c -
cisco nexus_9364c-gx -
cisco nexus_9372px -
cisco nexus_9372px-e -
cisco nexus_9372tx -
cisco nexus_9372tx-e -
cisco nexus_9396px -
cisco nexus_9396tx -
cisco nexus_9508 -


To clipboard 

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  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2021-1588",
  "lastModified": "2024-11-21T05:44:41.290",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.6,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.0,
        "source": "psirt@cisco.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.6,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.0,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-08-25T20:15:11.537",
  "references": [
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-mpls-oam-dos-sGO9x5GM"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-mpls-oam-dos-sGO9x5GM"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-126"
        }
      ],
      "source": "psirt@cisco.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        },
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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