FKIE_CVE-2017-3879

Vulnerability from fkie_nvd - Published: 2017-03-17 22:59 - Updated: 2026-06-17 01:19
Severity
5.3 (Medium) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
A Denial of Service vulnerability in the remote login functionality for Cisco NX-OS Software running on Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to cause a process used for login to terminate unexpectedly and the login attempt to fail. There is no impact to user traffic flowing through the device. The attacker could use either a Telnet or an SSH client for the remote login attempt. Affected Products: This vulnerability affects Cisco Nexus 9000 Series Switches that are running Cisco NX-OS Software and are configured to allow remote Telnet connections to the device. More Information: CSCuy25824. Known Affected Releases: 7.0(3)I3(1) 8.3(0)CV(0.342) 8.3(0)CV(0.345). Known Fixed Releases: 8.3(0)CV(0.362) 8.0(1) 7.0(3)IED5(0.19) 7.0(3)IED5(0) 7.0(3)I4(1) 7.0(3)I4(0.8) 7.0(3)I2(2e) 7.0(3)F1(1.22) 7.0(3)F1(1) 7.0(3)F1(0.230).
References
psirt@cisco.comhttp://www.securityfocus.com/bid/96920Third Party Advisory, VDB Entry
psirt@cisco.comhttp://www.securitytracker.com/id/1038046
psirt@cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170315-nss1Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/96920Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1038046
af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170315-nss1Vendor Advisory
Impacted products
Vendor Product Version
cisco nx-os 7.0\(3\)i3\(0.170\)
cisco nx-os 8.3\(0\)cv\(0.342\)
cisco nx-os 8.3\(0\)cv\(0.345\)
cisco nexus_92160yc_switch -
cisco nexus_92300yc_switch -
cisco nexus_92304qc_switch -
cisco nexus_9236c_switch -
cisco nexus_9272q_switch -
cisco nexus_93108tc-ex_switch -
cisco nexus_93120tx_switch -
cisco nexus_93128tx_switch -
cisco nexus_93180lc-ex_switch -
cisco nexus_93180yc-ex_switch -
cisco nexus_9332pq_switch -
cisco nexus_9336pq_aci_spine_switch -
cisco nexus_9372px-e_switch -
cisco nexus_9372px_switch -
cisco nexus_9372tx-e_switch -
cisco nexus_9372tx_switch -
cisco nexus_9396px_switch -
cisco nexus_9396tx_switch -
cisco nexus_9508_switch -
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Cisco Nexus 9000 Series Switches",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Cisco Nexus 9000 Series Switches"
            }
          ]
        }
      ],
      "source": "psirt@cisco.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "vulnerable": true
            },
            {
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              "matchCriteriaId": "7304A486-5925-42D3-A5F3-21671BB3FB2D",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "A69FDDA8-B18D-483E-B1D5-5DD76A053D18",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
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              "matchCriteriaId": "AF9147C9-5D8B-40F5-9AAA-66A3495A0AD8",
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            },
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            },
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              "matchCriteriaId": "2C67B7A6-9BB2-41FC-8FA3-8D0DF67CBC68",
              "vulnerable": false
            },
            {
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              "matchCriteriaId": "BDC208BC-7E19-48C6-A20E-A79A51B7362C",
              "vulnerable": false
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              "matchCriteriaId": "084D0191-563B-4FF0-B589-F35DA118E1C6",
              "vulnerable": false
            },
            {
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              "vulnerable": false
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            },
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              "vulnerable": false
            },
            {
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            },
            {
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              "vulnerable": false
            },
            {
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              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A Denial of Service vulnerability in the remote login functionality for Cisco NX-OS Software running on Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to cause a process used for login to terminate unexpectedly and the login attempt to fail. There is no impact to user traffic flowing through the device. The attacker could use either a Telnet or an SSH client for the remote login attempt. Affected Products: This vulnerability affects Cisco Nexus 9000 Series Switches that are running Cisco NX-OS Software and are configured to allow remote Telnet connections to the device. More Information: CSCuy25824. Known Affected Releases: 7.0(3)I3(1) 8.3(0)CV(0.342) 8.3(0)CV(0.345). Known Fixed Releases: 8.3(0)CV(0.362) 8.0(1) 7.0(3)IED5(0.19) 7.0(3)IED5(0) 7.0(3)I4(1) 7.0(3)I4(0.8) 7.0(3)I2(2e) 7.0(3)F1(1.22) 7.0(3)F1(1) 7.0(3)F1(0.230)."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de denegaci\u00f3n de servicio en la funcionalidad de inicio de sesi\u00f3n remoto para el software Cisco NX-OS que se ejecuta en Cisco Nexus 9000 Series Switches podr\u00eda permitir a un atacante remoto no autenticado provocar que un proceso utilizado para iniciar sesi\u00f3n termine inesperadamente y que el intento de inicio de sesi\u00f3n fracase. No hay impacto en el tr\u00e1fico de usuarios que fluye a trav\u00e9s del dispositivo. El atacante podr\u00eda utilizar un Telnet o un cliente SSH para el intento de inicio de sesi\u00f3n remoto. Productos afectados: Esta vulnerabilidad afecta a los conmutadores Cisco Nexus serie 9000 que ejecutan el software Cisco NX-OS y est\u00e1n configurados para permitir conexiones Telnet remotas al dispositivo. M\u00e1s informaci\u00f3n: CSCuy25824. Lanzamientos afectados conocidos: 7.0(3)I3(1) 8.3(0)CV(0.342) 8.3(0)CV(0.345). . Lotes fijos conocidos: Known Fixed Releases: 8.3(0)CV(0.362) 8.0(1) 7.0(3)IED5(0.19) 7.0(3)IED5(0) 7.0(3)I4(1) 7.0(3)I4(0.8) 7.0(3)I2(2e) 7.0(3)F1(1.22) 7.0(3)F1(1) 7.0(3)F1(0.230)."
    }
  ],
  "id": "CVE-2017-3879",
  "lastModified": "2026-06-17T01:19:06.647",
  "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
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2017-03-17T22:59:00.577",
  "references": [
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/96920"
    },
    {
      "source": "psirt@cisco.com",
      "url": "http://www.securitytracker.com/id/1038046"
    },
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170315-nss1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/96920"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securitytracker.com/id/1038046"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170315-nss1"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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