{
  "id": "CVE-2021-37938",
  "sourceIdentifier": "bressers@elastic.co",
  "published": "2021-11-18T16:15:08.817",
  "lastModified": "2021-11-23T18:20:13.580",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "It was discovered that on Windows operating systems specifically, Kibana was not validating a user supplied path, which would load .pbf files. Because of this, a malicious user could arbitrarily traverse the Kibana host to load internal files ending in the .pbf extension. Thanks to Dominic Couture for finding this vulnerability."
    },
    {
      "lang": "es",
      "value": "Se ha detectado que en los sistemas operativos Windows espec\u00edficamente, Kibana no estaba comprendiendo una ruta suministrada por el usuario, que cargar\u00eda archivos .pbf. Debido a esto, un usuario malicioso podr\u00eda atravesar arbitrariamente el host de Kibana para cargar archivos internos que terminaran en la extensi\u00f3n .pbf. Gracias a Dominic Couture por encontrar esta vulnerabilidad."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "SINGLE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.0
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.0,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    },
    {
      "source": "bressers@elastic.co",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-269"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "7.9.0",
              "versionEndExcluding": "7.15.2",
              "matchCriteriaId": "9AE8F25B-F606-4B79-A2A3-4D1C27818B6E"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://discuss.elastic.co/t/kibana-7-15-2-security-update/288923",
      "source": "bressers@elastic.co",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ]
    }
  ]
}