FKIE_CVE-2020-17355

Vulnerability from fkie_nvd - Published: 2020-10-21 22:15 - Updated: 2024-11-21 05:07
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Arista EOS before 4.21.12M, 4.22.x before 4.22.7M, 4.23.x before 4.23.5M, and 4.24.x before 4.24.2F allows remote attackers to cause a denial of service (restart of agents) by crafting a malformed DHCP packet which leads to an incorrect route being installed.
References
cve@mitre.orghttps://www.arista.com/en/support/advisories-notices/security-advisories/11759-security-advisory-53Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.arista.com/en/support/advisories-notices/security-advisories/11759-security-advisory-53Vendor Advisory
Impacted products
Vendor Product Version
arista eos *
arista eos *
arista eos *
arista eos *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "8FCF6056-72B1-47FE-8D29-CD5F0F9B5436",
              "versionEndExcluding": "4.21.12m",
              "versionStartIncluding": "4.21.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "9CA840AC-49E4-491A-872E-1EE60B986131",
              "versionEndExcluding": "4.22.7m",
              "versionStartIncluding": "4.22",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C349690C-2136-4E50-96E9-432FD27E4995",
              "versionEndExcluding": "4.23.5m",
              "versionStartIncluding": "4.23",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "DD8F353F-4DE3-449B-95F0-1401172A19EC",
              "versionEndExcluding": "4.24.2f",
              "versionStartIncluding": "4.24.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Arista EOS before 4.21.12M, 4.22.x before 4.22.7M, 4.23.x before 4.23.5M, and 4.24.x before 4.24.2F allows remote attackers to cause a denial of service (restart of agents) by crafting a malformed DHCP packet which leads to an incorrect route being installed."
    },
    {
      "lang": "es",
      "value": "Arista EOS versiones anteriores a 4.21.12M, 4.22.x versiones anteriores a 4.22.7M, 4.23.x versiones anteriores a 4.23.5M y 4.24.x versiones anteriores a 4.24.2F, permite a atacantes remotos causar una denegaci\u00f3n de servicio (reinicio de agentes) por medio de la creaci\u00f3n de un paquete DHCP malformado que conlleva a la instalaci\u00f3n de una ruta inapropiada"
    }
  ],
  "id": "CVE-2020-17355",
  "lastModified": "2024-11-21T05:07:56.367",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "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": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-10-21T22:15:11.930",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/11759-security-advisory-53"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/11759-security-advisory-53"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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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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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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