« Volver al listado

CVE-2021-40905

Estado: ModificadaAlta (8.8)—

The web management console of CheckMK Enterprise Edition (versions 1.5.0 to 2.0.0p9) does not properly sanitise the uploading of ".mkp" files, which are Extension Packages, making remote code execution possible. Successful exploitation requires access to the web management interface, either with valid credentials or with a hijacked session of a user with administrator role. NOTE: the vendor states that this is the intended behavior: admins are supposed to be able to execute code in this manner.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (2)

Checkmk — CheckmkTribe29 — Checkmk

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-40905",
  "cveTags": [
    {
      "tags": [
        "disputed"
      ],
      "sourceIdentifier": "cve@mitre.org"
    }
  ],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-40905",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-07-18T14:50:40.204134Z"
        }
      }
    ],
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      },
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:tribe29:checkmk:*:*:*:*:*:*:*:*"
          ],
          "vendor": "tribe29",
          "product": "checkmk",
          "versions": [
            {
              "status": "affected",
              "version": "1.5.0",
              "lessThan": "2.0.0p9",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2022-03-25T23:15:08.237",
  "references": [
    {
      "url": "https://docs.checkmk.com/latest/en/mkps.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/Edgarloyola/CVE-2021-40905",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/Edgarloyola/CVE-2021-40905",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-434"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-434"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The web management console of CheckMK Enterprise Edition (versions 1.5.0 to 2.0.0p9) does not properly sanitise the uploading of \".mkp\" files, which are Extension Packages, making remote code execution possible. Successful exploitation requires access to the web management interface, either with valid credentials or with a hijacked session of a user with administrator role. NOTE: the vendor states that this is the intended behavior: admins are supposed to be able to execute code in this manner."
    },
    {
      "lang": "es",
      "value": "** EN DISTPUTA ** La consola de administración web de CheckMK Enterprise Edition (versiones 1.5.0 a 2.0.0p9) no sanea correctamente la carga de archivos \".mkp\", que son Paquetes de Extensión, haciendo posible una ejecución de código remota. Una explotación con éxito requiere el acceso a la interfaz de administración web, ya sea con credenciales válidas o con una sesión secuestrada de un usuario con rol de administrador. NOTA: el proveedor afirma que este es el comportamiento previsto: se supone que los administradores pueden ejecutar código de esta manera"
    }
  ],
  "lastModified": "2026-07-09T01:17:02.310",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:-:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F8EDFDCA-0778-4540-B1D5-D3A986258028"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:b1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "54031390-D7E7-4A14-AA2F-923768B3685F"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:b2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F1B7E35F-5A07-424E-AA09-AC54104D612B"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:b3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8D4AC302-C8F5-4A2B-A73A-982D0AA2495A"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:b4:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7A058C71-C39E-4109-B570-4A061013D033"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:b5:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "22BCFA79-B3D6-4FFF-A3D3-8C4C97AF17C5"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:b6:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2A1703D9-8EEB-432D-90E2-F847CDC4C204"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:b7:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1A4C72BA-6D78-4911-83E4-4DABB2CAC47F"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:b8:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "081FD127-1066-4019-B521-9FADB85DBD4A"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:i1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C1A4F005-4823-4B2B-B4EF-4EFDB04CFB9B"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:p1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "357240B1-F0DA-4FA8-B782-D998951F4B54"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:p10:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2F828F54-04E2-4B98-91A7-B09ED833E88B"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:p11:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A4B8B300-8264-40AB-A839-7EACB988163B"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:p12:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EB76A8DF-C870-482F-A488-DB2917ABD971"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:p13:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "04947B1B-CF67-4C11-8FE3-6C17FD35E2EF"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:p14:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "591AEC3C-2F48-4E91-9881-42EEDD039C5D"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:p15:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C5CA04C8-2C80-4C7E-B329-3FFCBEDEE663"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:p16:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "47A1C5AC-C8B7-495A-A5F4-CD4790358A2E"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:p17:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B87D8B46-5B04-460D-BBA1-BB19234DA19D"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:p2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F1E5549E-3272-478D-85D0-6F53EE731183"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:p3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D884D3AF-7D57-4DF6-82E8-556C35319ED2"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:p4:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "528BAFA3-ED39-45B5-8C81-A6FD76DDB49B"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:p5:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "02DA7C50-7360-4679-93A5-92C8DC5E8E46"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:p6:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "71B49D90-9522-46C6-8948-B9C21CEA473C"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:p7:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "98C29296-D1F3-45A2-BF0A-22333150F416"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:p8:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "339226E6-532F-4FE2-A543-6B166A9BA7F3"
            },
            {
              "criteria": "cpe:2.3:a:checkmk:checkmk:2.0.0:p9:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "986FDFA6-BE12-4268-9B90-F7D469BBE517"
            },
            {
              "criteria": "cpe:2.3:a:tribe29:checkmk:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "564469A7-7D79-40BF-9177-2D95D502AD2F",
              "versionEndExcluding": "2.0.0",
              "versionStartIncluding": "1.5.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}