FKIE_CVE-2021-28507

Vulnerability from fkie_nvd - Published: 2022-01-14 20:15 - Updated: 2024-11-21 05:59
Severity ?
5.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N
7.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Summary
An issue has recently been discovered in Arista EOS where, under certain conditions, the service ACL configured for OpenConfig gNOI and OpenConfig RESTCONF might be bypassed, which results in the denied requests being forwarded to the agent.
References
psirt@arista.comhttps://www.arista.com/en/support/advisories-notices/security-advisories/13449-security-advisory-0071Exploit, Mitigation, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.arista.com/en/support/advisories-notices/security-advisories/13449-security-advisory-0071Exploit, Mitigation, Patch, Vendor Advisory
Impacted products
Vendor Product Version
arista eos *
arista eos *
arista eos *
arista eos *
arista eos *
arista eos *
arista eos 4.21.0f
arista eos 4.21.1f
arista eos 4.21.3f
arista eos 4.22.0f
arista eos 4.22.1f
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{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "matchCriteriaId": "37BF0DDF-3D2C-4B74-A71B-4A26CE66584F",
              "versionEndIncluding": "4.23.9m",
              "versionStartIncluding": "4.23.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "3753CA4E-E3ED-43AC-BD9B-0F41C274EE42",
              "versionEndIncluding": "4.24.7m",
              "versionStartIncluding": "4.24.0",
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            },
            {
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              "matchCriteriaId": "2DCCC623-E1C2-4E97-B5B4-87B15F596334",
              "versionEndIncluding": "4.25.3",
              "versionStartIncluding": "4.25.0",
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            },
            {
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              "versionEndIncluding": "4.25.4m",
              "versionStartIncluding": "4.25.4",
              "vulnerable": true
            },
            {
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              "versionEndIncluding": "4.25.5.1m",
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              "vulnerable": true
            },
            {
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              "matchCriteriaId": "361E664D-9F0D-478D-A2F6-F8001F464B0A",
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            },
            {
              "criteria": "cpe:2.3:o:arista:eos:4.21.0f:*:*:*:*:*:*:*",
              "matchCriteriaId": "FDA321EA-682B-4A73-9503-FBD27008CD81",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "8C0E814D-7B50-4A14-BA5D-2E29DD84FAB7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:arista:eos:4.21.3f:*:*:*:*:*:*:*",
              "matchCriteriaId": "429FD7A6-BB8F-4B57-BC72-D79ADF6E3656",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:arista:eos:4.22.0f:*:*:*:*:*:*:*",
              "matchCriteriaId": "9D46ABF9-1F09-43C0-93C4-C9AA7245D0F6",
              "vulnerable": true
            },
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              "matchCriteriaId": "0B05A1D5-D833-4E4D-BC39-236F5BFC7918",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue has recently been discovered in Arista EOS where, under certain conditions, the service ACL configured for OpenConfig gNOI and OpenConfig RESTCONF might be bypassed, which results in the denied requests being forwarded to the agent."
    },
    {
      "lang": "es",
      "value": "Se ha detectado recientemente un problema en Arista EOS donde, bajo determinadas condiciones, la ACL de servicio configurada para OpenConfig gNOI y OpenConfig RESTCONF podr\u00eda saltarse, lo que hace que las peticiones denegadas se reenv\u00eden al agente"
    }
  ],
  "id": "CVE-2021-28507",
  "lastModified": "2024-11-21T05:59:48.183",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 4.9,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:S/C:P/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 6.8,
        "impactScore": 4.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 4.2,
        "source": "psirt@arista.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 4.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2022-01-14T20:15:10.383",
  "references": [
    {
      "source": "psirt@arista.com",
      "tags": [
        "Exploit",
        "Mitigation",
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/13449-security-advisory-0071"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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        "Mitigation",
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/13449-security-advisory-0071"
    }
  ],
  "sourceIdentifier": "psirt@arista.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-284"
        }
      ],
      "source": "psirt@arista.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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Detection rules are retrieved from Rulezet.