CVE-2021-33191

{
  "id": "CVE-2021-33191",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security@apache.org",
      "affectedData": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache NiFi - MiNiFi C++",
          "versions": [
            {
              "status": "affected",
              "changes": [
                {
                  "at": "0.10.0",
                  "status": "unaffected"
                }
              ],
              "version": "0.5.0",
              "lessThan": "Apache NiFi - MiNiFi C++*",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-08-24T12:15:07.307",
  "references": [
    {
      "url": "http://www.openwall.com/lists/oss-security/2021/08/24/1",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "security@apache.org"
    },
    {
      "url": "https://lists.apache.org/thread.html/r6f27a2454f5f67dbe4e21c8eb1db537b01863a0bc3758f28aa60f032%40%3Cannounce.apache.org%3E",
      "source": "security@apache.org"
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      "tags": [
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      "source": "security@apache.org"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2021/08/24/1",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.apache.org/thread.html/r6f27a2454f5f67dbe4e21c8eb1db537b01863a0bc3758f28aa60f032%40%3Cannounce.apache.org%3E",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@apache.org",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "From Apache NiFi MiNiFi C++ version 0.5.0 the c2 protocol implements an \"agent-update\" command which was designed to patch the application binary. This \"patching\" command defaults to calling a trusted binary, but might be modified to an arbitrary value through a \"c2-update\" command. Said command is then executed using the same privileges as the application binary. This was addressed in version 0.10.0"
    },
    {
      "lang": "es",
      "value": "Apache NiFi MiNiFi C++ versión 0.5.0, el protocolo c2 implementa un comando \"agent-update\" que fue diseñado para parchear el binario de la aplicación. Este comando de \"patching\" predeterminado llama a un binario confiable, pero puede ser modificado a un valor arbitrario mediante un comando \"c2-update\". Dicho comando es ejecutado entonces usando los mismos privilegios que el binario de la aplicación. Esto fue solucionado en versión 0.10.0."
    }
  ],
  "lastModified": "2026-06-17T03:54:19.737",
  "configurations": [
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        {
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              "criteria": "cpe:2.3:a:apache:nifi_minifi_c\\+\\+:*:*:*:*:*:*:*:*",
              "vulnerable": true,
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              "versionEndExcluding": "0.10.0",
              "versionStartIncluding": "0.5.0"
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          "operator": "OR"
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  "sourceIdentifier": "security@apache.org"
}