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FKIE_CVE-2020-15225

Vulnerability from fkie_nvd - Published: 2021-04-29 21:15 - Updated: 2026-06-17 02:56
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
django-filter is a generic system for filtering Django QuerySets based on user selections. In django-filter before version 2.4.0, automatically generated `NumberFilter` instances, whose value was later converted to an integer, were subject to potential DoS from maliciously input using exponential format with sufficiently large exponents. Version 2.4.0+ applies a `MaxValueValidator` with a a default `limit_value` of 1e50 to the form field used by `NumberFilter` instances. In addition, `NumberFilter` implements the new `get_max_validator()` which should return a configured validator instance to customise the limit, or else `None` to disable the additional validation. Users may manually apply an equivalent validator if they are not able to upgrade.
References
security-advisories@github.comhttps://github.com/carltongibson/django-filter/commit/340cf7a23a2b3dcd7183f6a0d6c383e85b130d2bPatch, Third Party Advisory
security-advisories@github.comhttps://github.com/carltongibson/django-filter/releases/tag/2.4.0Release Notes, Third Party Advisory
security-advisories@github.comhttps://github.com/carltongibson/django-filter/security/advisories/GHSA-x7gm-rfgv-w973Third Party Advisory
security-advisories@github.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DPHENTRHRAYFXYPPBT7JRHZRWILRY44S/
security-advisories@github.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FAT2ZAEF6DM3VFSOHKB7X3ASSHGQHJAK/
security-advisories@github.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVJ7AYU6FUSU3F653YCGW5LFD3IULRSX/
security-advisories@github.comhttps://pypi.org/project/django-filter/Product, Third Party Advisory
security-advisories@github.comhttps://security.netapp.com/advisory/ntap-20210604-0010/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/carltongibson/django-filter/commit/340cf7a23a2b3dcd7183f6a0d6c383e85b130d2bPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/carltongibson/django-filter/releases/tag/2.4.0Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/carltongibson/django-filter/security/advisories/GHSA-x7gm-rfgv-w973Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DPHENTRHRAYFXYPPBT7JRHZRWILRY44S/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FAT2ZAEF6DM3VFSOHKB7X3ASSHGQHJAK/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVJ7AYU6FUSU3F653YCGW5LFD3IULRSX/
af854a3a-2127-422b-91ae-364da2661108https://pypi.org/project/django-filter/Product, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20210604-0010/Third Party Advisory
Impacted products
Vendor Product Version
django-filter_project django-filter *
fedoraproject fedora 34
fedoraproject fedora 35
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "django-filter",
          "vendor": "carltongibson",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.4.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:django-filter_project:django-filter:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "1C05053B-CE49-444B-882B-E4DC91CBFDAC",
              "versionEndExcluding": "2.4.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
              "matchCriteriaId": "A930E247-0B43-43CB-98FF-6CE7B8189835",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*",
              "matchCriteriaId": "80E516C0-98A4-4ADE-B69F-66A772E2BAAA",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "django-filter is a generic system for filtering Django QuerySets based on user selections. In django-filter before version 2.4.0, automatically generated `NumberFilter` instances, whose value was later converted to an integer, were subject to potential DoS from maliciously input using exponential format with sufficiently large exponents. Version 2.4.0+ applies a `MaxValueValidator` with a a default `limit_value` of 1e50 to the form field used by `NumberFilter` instances. In addition, `NumberFilter` implements the new `get_max_validator()` which should return a configured validator instance to customise the limit, or else `None` to disable the additional validation. Users may manually apply an equivalent validator if they are not able to upgrade."
    },
    {
      "lang": "es",
      "value": "django-filter es un sistema gen\u00e9rico para filtrar Django QuerySets en funci\u00f3n de las selecciones del usuario.\u0026#xa0;En django-filter anterior a la versi\u00f3n 2.4.0, las instancias de \"NumberFilter\" generadas autom\u00e1ticamente, cuyo valor se convirti\u00f3 m\u00e1s tarde en un entero, estaban sujetas a posibles DoS de la entradas maliciosas usando un formato exponencial con exponentes suficientemente grandes.\u0026#xa0;La versi\u00f3n 2.4.0+ aplica un \"MaxValueValidator\" con un \"limit_value\" predeterminado de 1e50 al campo de formulario usado por unas instancias de \"NumberFilter\".\u0026#xa0;Adem\u00e1s, \"NumberFilter\" implementa el nuevo \"get_max_validator()\" que deber\u00eda devolver una instancia de validaci\u00f3n configurada para personalizar el l\u00edmite, o bien \"None\" para deshabilitar una comprobaci\u00f3n adicional.\u0026#xa0;Los usuarios pueden aplicar manualmente un validador equivalente si no pueden actualizar."
    }
  ],
  "id": "CVE-2020-15225",
  "lastModified": "2026-06-17T02:56:18.477",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-04-29T21:15:08.490",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/carltongibson/django-filter/commit/340cf7a23a2b3dcd7183f6a0d6c383e85b130d2b"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "url": "https://github.com/carltongibson/django-filter/releases/tag/2.4.0"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/carltongibson/django-filter/security/advisories/GHSA-x7gm-rfgv-w973"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DPHENTRHRAYFXYPPBT7JRHZRWILRY44S/"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FAT2ZAEF6DM3VFSOHKB7X3ASSHGQHJAK/"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVJ7AYU6FUSU3F653YCGW5LFD3IULRSX/"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Product",
        "Third Party Advisory"
      ],
      "url": "https://pypi.org/project/django-filter/"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.netapp.com/advisory/ntap-20210604-0010/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
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      "url": "https://github.com/carltongibson/django-filter/commit/340cf7a23a2b3dcd7183f6a0d6c383e85b130d2b"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://github.com/carltongibson/django-filter/releases/tag/2.4.0"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      ],
      "url": "https://github.com/carltongibson/django-filter/security/advisories/GHSA-x7gm-rfgv-w973"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DPHENTRHRAYFXYPPBT7JRHZRWILRY44S/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FAT2ZAEF6DM3VFSOHKB7X3ASSHGQHJAK/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVJ7AYU6FUSU3F653YCGW5LFD3IULRSX/"
    },
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    {
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      "url": "https://security.netapp.com/advisory/ntap-20210604-0010/"
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  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-681"
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      "source": "security-advisories@github.com",
      "type": "Secondary"
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    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-681"
        }
      ],
      "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

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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