{
  "id": "CVE-2018-17194",
  "sourceIdentifier": "security@apache.org",
  "published": "2018-12-19T14:29:00.440",
  "lastModified": "2019-01-11T17:50:13.070",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "When a client request to a cluster node was replicated to other nodes in the cluster for verification, the Content-Length was forwarded. On a DELETE request, the body was ignored, but if the initial request had a Content-Length value other than 0, the receiving nodes would wait for the body and eventually timeout. Mitigation: The fix to check DELETE requests and overwrite non-zero Content-Length header values was applied on the Apache NiFi 1.8.0 release. Users running a prior 1.x release should upgrade to the appropriate release."
    },
    {
      "lang": "es",
      "value": "Cuando una petici\u00f3n de cliente a un nodo del cl\u00faster se replic\u00f3 a otros nodos en el cl\u00faster para verificarlos, se redireccion\u00f3 el Content-Length. En una petici\u00f3n DELETE, el cuerpo fue ignorado, pero si la petici\u00f3n inicial conten\u00eda un valor Content-Length diferente de 0, los nodos recibidores esperar\u00edan al cuerpo y, finalmente, agotar\u00edan su tiempo de conexi\u00f3n. Mitigaci\u00f3n: La soluci\u00f3n para comprobar las peticiones DELETE y sobrescribir valores de la cabecera Content-Length que no son cero se aplic\u00f3 en la versi\u00f3n 1.8.0 de Apache NiFi. Los usuarios que ejecuten una distribuci\u00f3n 1.x anterior deben actualizarla a la distribuci\u00f3n adecuada."
    }
  ],
  "metrics": {
    "cvssMetricV30": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 10.0,
        "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-20"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:apache:nifi:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "1.0.0",
              "versionEndIncluding": "1.7.1",
              "matchCriteriaId": "2F6B3A37-6559-40FE-92B9-4FCE9906CA5D"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://nifi.apache.org/security.html#CVE-2018-17194",
      "source": "security@apache.org",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}