pysec - pysec-2020-156

PYSEC-2020-156

Vulnerability from pysec - Published: 2020-01-29 15:15 - Updated: 2020-02-03 16:36

Details

flaskparser.py in Webargs 5.x through 5.5.2 doesn't check that the Content-Type header is application/json when receiving JSON input. If the request body is valid JSON, it will accept it even if the content type is application/x-www-form-urlencoded. This allows for JSON POST requests to be made across domains, leading to CSRF.

Impacted products

Name	purl
webargs	pkg:pypi/webargs

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "webargs",
        "purl": "pkg:pypi/webargs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.0.0"
            },
            {
              "fixed": "5.5.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.0.0",
        "5.1.0",
        "5.1.1",
        "5.1.1.post0",
        "5.1.2",
        "5.1.3",
        "5.2.0",
        "5.3.0",
        "5.3.1",
        "5.3.2",
        "5.4.0",
        "5.5.0",
        "5.5.1",
        "5.5.2"
      ]
    }
  ],
  "aliases": [
    "CVE-2020-7965",
    "GHSA-fjq3-5pxw-4wj4"
  ],
  "details": "flaskparser.py in Webargs 5.x through 5.5.2 doesn\u0027t check that the Content-Type header is application/json when receiving JSON input. If the request body is valid JSON, it will accept it even if the content type is application/x-www-form-urlencoded. This allows for JSON POST requests to be made across domains, leading to CSRF.",
  "id": "PYSEC-2020-156",
  "modified": "2020-02-03T16:36:00Z",
  "published": "2020-01-29T15:15:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://webargs.readthedocs.io/en/latest/changelog.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-fjq3-5pxw-4wj4"
    }
  ]
}

GHSA-FJQ3-5PXW-4WJ4

Vulnerability from github – Published: 2021-04-07 21:06 – Updated: 2024-11-19 15:34

Summary

Cross-Site Request Forgery in Webargs

Details

Severity ?

8.8 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

8.7 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "webargs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.0.0"
            },
            {
              "fixed": "5.5.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "webargs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.0.0b1"
            },
            {
              "fixed": "6.0.0b4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-7965"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-352"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-03-29T22:19:18Z",
    "nvd_published_at": "2020-01-29T15:15:00Z",
    "severity": "HIGH"
  },
  "details": "flaskparser.py in Webargs 5.x through 5.5.2 doesn\u0027t check that the Content-Type header is application/json when receiving JSON input. If the request body is valid JSON, it will accept it even if the content type is application/x-www-form-urlencoded. This allows for JSON POST requests to be made across domains, leading to CSRF.",
  "id": "GHSA-fjq3-5pxw-4wj4",
  "modified": "2024-11-19T15:34:04Z",
  "published": "2021-04-07T21:06:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-7965"
    },
    {
      "type": "WEB",
      "url": "https://github.com/marshmallow-code/webargs/commit/b9ee8b0aa668207a363d9fd21d967eeadb975c3e"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/marshmallow-code/webargs"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/webargs/PYSEC-2020-156.yaml"
    },
    {
      "type": "WEB",
      "url": "https://webargs.readthedocs.io/en/latest/changelog.html"
    },
    {
      "type": "WEB",
      "url": "https://webargs.readthedocs.io/en/latest/changelog.html#b4-2020-01-28"
    },
    {
      "type": "WEB",
      "url": "https://webargs.readthedocs.io/en/latest/changelog.html#id11"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Cross-Site Request Forgery in Webargs"
}

CVE-2020-7965 (GCVE-0-2020-7965)

Vulnerability from cvelistv5 – Published: 2020-01-29 14:33 – Updated: 2024-08-04 09:48

Summary

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

https://webargs.readthedocs.io/en/latest/changelog.html

x_refsource_CONFIRM

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T09:48:25.379Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://webargs.readthedocs.io/en/latest/changelog.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
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        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-01-29T14:33:16",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://webargs.readthedocs.io/en/latest/changelog.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-7965",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
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                },
                "vendor_name": "n/a"
              }
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        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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            }
          ]
        },
        "problemtype": {
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        "references": {
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              "url": "https://webargs.readthedocs.io/en/latest/changelog.html"
            }
          ]
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  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2020-7965",
    "datePublished": "2020-01-29T14:33:16",
    "dateReserved": "2020-01-24T00:00:00",
    "dateUpdated": "2024-08-04T09:48:25.379Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

PYSEC-2020-156

GHSA-FJQ3-5PXW-4WJ4

CVE-2020-7965 (GCVE-0-2020-7965)

Tags

Sightings

Nomenclature