« Volver al listado

CVE-2017-6655

Estado: ModificadaMedia (6.5)—

A vulnerability in the Fibre Channel over Ethernet (FCoE) protocol implementation in Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition when an FCoE-related process unexpectedly reloads. This vulnerability affects Cisco NX-OS Software on the following Cisco devices when they are configured for FCoE: Multilayer Director Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches. More Information: CSCvc91729. Known Affected Releases: 8.3(0)CV(0.833). Known Fixed Releases: 8.3(0)ISH(0.62) 8.3(0)CV(0.944) 8.1(1) 8.1(0.8)S0 7.3(2)D1(0.47).

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (5)

Cisco — MDS 9000 Nx-osCisco — Nx-osCisco — Nx-os FOR Nexus 5500 Platform SwitchesCisco — Nx-os FOR Nexus 5600 Platform SwitchesCisco — Nx-os FOR Nexus 7700 Series Switches

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2017-6655",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 3.3,
          "accessVector": "ADJACENT_NETWORK",
          "vectorString": "AV:A/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": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.5,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@cisco.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "Cisco NX-OS Software Fibre Channel over Ethernet",
          "versions": [
            {
              "status": "affected",
              "version": "Cisco NX-OS Software Fibre Channel over Ethernet"
            }
          ]
        }
      ]
    }
  ],
  "published": "2017-06-13T06:29:00.830",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/98991",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1038628",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "psirt@cisco.com"
    },
    {
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170607-nxos",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/98991",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1038628",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170607-nxos",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the Fibre Channel over Ethernet (FCoE) protocol implementation in Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition when an FCoE-related process unexpectedly reloads. This vulnerability affects Cisco NX-OS Software on the following Cisco devices when they are configured for FCoE: Multilayer Director Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches. More Information: CSCvc91729. Known Affected Releases: 8.3(0)CV(0.833). Known Fixed Releases: 8.3(0)ISH(0.62) 8.3(0)CV(0.944) 8.1(1) 8.1(0.8)S0 7.3(2)D1(0.47)."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en la implementación del protocolo Fibre Channel over Ethernet (FCoE) en el software NX-OS de Cisco, podría permitir a un atacante adyacente no identificado causar una condición de denegación de servicio (DoS) cuando un proceso relacionado con FCoE se recarga inesperadamente. Esta vulnerabilidad afecta al software de NX-OS de Cisco en los siguientes dispositivos Cisco cuando son configurados para FCoE: Multilayer Director Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches. Más información: CSCvc91729. Versiones Afectadas Conocidas: 8.3(0)CV(0.833). Versiones Corregidas Conocidas: 8.3(0)ISH(0.62) 8.3(0)CV(0.944) 8.1(1) 8.1(0.8)S0 7.3(2)D1(0.47)."
    }
  ],
  "lastModified": "2026-06-17T01:22:44.363",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cisco:mds_9000_nx-os:7.3\\(1\\)d1\\(1\\):*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "248188E7-3216-435A-9625-FDCEA2C11863"
            },
            {
              "criteria": "cpe:2.3:a:cisco:nx-os_for_nexus_5500_platform_switches:7.3\\(1\\)n1\\(1\\):*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B159EFB5-63F1-4E3E-B015-AC7B4A42A25B"
            },
            {
              "criteria": "cpe:2.3:a:cisco:nx-os_for_nexus_5600_platform_switches:7.3\\(1\\)n1\\(1\\):*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AB9B9529-DD6B-40F8-A6E7-CB698C831F34"
            },
            {
              "criteria": "cpe:2.3:a:cisco:nx-os_for_nexus_7700_series_switches:8.0\\(1\\)\\(ed\\):*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "16251FB0-AFB1-4B4C-97D8-F7E25D3B3CEF"
            },
            {
              "criteria": "cpe:2.3:o:cisco:nx-os:8.0\\(1\\)s2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "167FD2BD-A610-4966-86DF-DA5C78E0D3D2"
            },
            {
              "criteria": "cpe:2.3:o:cisco:nx-os:8.3\\(0\\)cv\\(0.833\\):*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "62F6D1E8-D4B1-4AF9-9F7A-4F221A4DB6E6"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@cisco.com"
}