FKIE_CVE-2021-32746

Vulnerability from fkie_nvd - Published: 2021-07-12 23:15 - Updated: 2026-06-17 03:53
Severity
5.3 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
5.3 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
Icinga Web 2 is an open source monitoring web interface, framework and command-line interface. Between versions 2.3.0 and 2.8.2, the `doc` module of Icinga Web 2 allows to view documentation directly in the UI. It must be enabled manually by an administrator and users need explicit access permission to use it. Then, by visiting a certain route, it is possible to gain access to arbitrary files readable by the web-server user. The issue has been fixed in the 2.9.0, 2.8.3, and 2.7.5 releases. As a workaround, an administrator may disable the `doc` module or revoke permission to use it from all users.
References
security-advisories@github.comhttps://github.com/Icinga/icingaweb2/releases/tag/v2.7.5Release Notes, Third Party Advisory
security-advisories@github.comhttps://github.com/Icinga/icingaweb2/releases/tag/v2.8.3Release Notes, Third Party Advisory
security-advisories@github.comhttps://github.com/Icinga/icingaweb2/releases/tag/v2.9.0Release Notes, Third Party Advisory
security-advisories@github.comhttps://github.com/Icinga/icingaweb2/security/advisories/GHSA-cmgc-h4cx-3v43Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/Icinga/icingaweb2/releases/tag/v2.7.5Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/Icinga/icingaweb2/releases/tag/v2.8.3Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/Icinga/icingaweb2/releases/tag/v2.9.0Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/Icinga/icingaweb2/security/advisories/GHSA-cmgc-h4cx-3v43Exploit, Third Party Advisory
Impacted products
Vendor Product Version
icinga icinga *
icinga icinga *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "icingaweb2",
          "vendor": "Icinga",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 2.3.0, \u003c= 2.8.2"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:icinga:icinga:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D7366836-AA23-42BA-BF2E-00722915893D",
              "versionEndExcluding": "2.7.5",
              "versionStartIncluding": "2.3.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:icinga:icinga:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "67125902-BF14-40DA-B319-88903781FA12",
              "versionEndExcluding": "2.8.3",
              "versionStartIncluding": "2.8.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Icinga Web 2 is an open source monitoring web interface, framework and command-line interface. Between versions 2.3.0 and 2.8.2, the `doc` module of Icinga Web 2 allows to view documentation directly in the UI. It must be enabled manually by an administrator and users need explicit access permission to use it. Then, by visiting a certain route, it is possible to gain access to arbitrary files readable by the web-server user. The issue has been fixed in the 2.9.0, 2.8.3, and 2.7.5 releases. As a workaround, an administrator may disable the `doc` module or revoke permission to use it from all users."
    },
    {
      "lang": "es",
      "value": "Icinga Web 2 es una interfaz web de monitorizaci\u00f3n de c\u00f3digo abierto, un framework y una interfaz de l\u00ednea de comandos. Entre las versiones 2.3.0 y 2.8.2, el m\u00f3dulo \"doc\" de Icinga Web 2 permite ver la documentaci\u00f3n directamente en la UI. Debe ser habilitado manualmente por un administrador y los usuarios necesitan un permiso de acceso expl\u00edcito para utilizarlo. Entonces, al visitar una determinada ruta, es posible obtener acceso a archivos arbitrarios legibles por el usuario del servidor web. El problema se ha corregido en las versiones 2.9.0, 2.8.3 y 2.7.5. Como soluci\u00f3n alternativa, un administrador puede desactivar el m\u00f3dulo \"doc\" o revocar el permiso de uso a todos los usuarios"
    }
  ],
  "id": "CVE-2021-32746",
  "lastModified": "2026-06-17T03:53:32.880",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 3.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:S/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 6.8,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-07-12T23:15:07.710",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/Icinga/icingaweb2/releases/tag/v2.7.5"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/Icinga/icingaweb2/releases/tag/v2.8.3"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/Icinga/icingaweb2/releases/tag/v2.9.0"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/Icinga/icingaweb2/security/advisories/GHSA-cmgc-h4cx-3v43"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/Icinga/icingaweb2/releases/tag/v2.7.5"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/Icinga/icingaweb2/releases/tag/v2.8.3"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/Icinga/icingaweb2/releases/tag/v2.9.0"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/Icinga/icingaweb2/security/advisories/GHSA-cmgc-h4cx-3v43"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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