Vulnerability-Lookup

FKIE_CVE-2020-13677

Vulnerability from fkie_nvd - Published: 2022-02-11 16:15 - Updated: 2026-06-17 02:53

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Summary

Under some circumstances, the Drupal core JSON:API module does not properly restrict access to certain content, which may result in unintended access bypass. Sites that do not have the JSON:API module enabled are not affected.

References

	URL	Tags
	mlhess@drupal.org	https://www.drupal.org/sa-core-2021-010	Patch, Vendor Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://www.drupal.org/sa-core-2021-010	Patch, Vendor Advisory

Impacted products

Vendor	Product	Version
drupal	drupal	*
drupal	drupal	*
drupal	drupal	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Core",
          "vendor": "Drupal",
          "versions": [
            {
              "lessThan": "9.2.6",
              "status": "affected",
              "version": "9.2.x",
              "versionType": "custom"
            },
            {
              "lessThan": "9.1.13",
              "status": "affected",
              "version": "9.1.x",
              "versionType": "custom"
            },
            {
              "lessThan": "8.9.19",
              "status": "affected",
              "version": "8.9.x",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "mlhess@drupal.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "69F69CDD-9527-44F9-9A24-1CB224492E78",
              "versionEndExcluding": "8.9.19",
              "versionStartIncluding": "8.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "CEDA920A-E60F-4CC8-9C06-1B3B7E200DE4",
              "versionEndExcluding": "9.1.13",
              "versionStartIncluding": "9.1.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "ED6917A0-B070-4716-9D5A-C8505254005F",
              "versionEndExcluding": "9.2.6",
              "versionStartIncluding": "9.2.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Under some circumstances, the Drupal core JSON:API module does not properly restrict access to certain content, which may result in unintended access bypass. Sites that do not have the JSON:API module enabled are not affected."
    },
    {
      "lang": "es",
      "value": "En algunas circunstancias, el m\u00f3dulo JSON:API del n\u00facleo de Drupal no restringe apropiadamente el acceso a determinados contenidos, lo que puede resultar en una omisi\u00f3n de acceso no intencionada. Los sitios que no presentan el m\u00f3dulo JSON:API habilitado no est\u00e1n afectados"
    }
  ],
  "id": "CVE-2020-13677",
  "lastModified": "2026-06-17T02:53:33.660",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2022-02-11T16:15:08.487",
  "references": [
    {
      "source": "mlhess@drupal.org",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://www.drupal.org/sa-core-2021-010"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://www.drupal.org/sa-core-2021-010"
    }
  ],
  "sourceIdentifier": "mlhess@drupal.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-284"
        }
      ],
      "source": "mlhess@drupal.org",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2020-13677 (GCVE-0-2020-13677)

Vulnerability from cvelistv5 – Published: 2022-02-11 15:55 – Updated: 2024-08-04 12:25

Summary

Severity

No CVSS data available.

CWE

CWE-284 - Improper Access Control

Assigner

drupal mitre root

References

1 reference

URL	Tags
https://www.drupal.org/sa-core-2021-010	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
Drupal	Core	Affected: 9.2.x , < 9.2.6 (custom) Affected: 9.1.x , < 9.1.13 (custom) Affected: 8.9.x , < 8.9.19 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T12:25:16.550Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.drupal.org/sa-core-2021-010"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Core",
          "vendor": "Drupal",
          "versions": [
            {
              "lessThan": "9.2.6",
              "status": "affected",
              "version": "9.2.x",
              "versionType": "custom"
            },
            {
              "lessThan": "9.1.13",
              "status": "affected",
              "version": "9.1.x",
              "versionType": "custom"
            },
            {
              "lessThan": "8.9.19",
              "status": "affected",
              "version": "8.9.x",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Under some circumstances, the Drupal core JSON:API module does not properly restrict access to certain content, which may result in unintended access bypass. Sites that do not have the JSON:API module enabled are not affected."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-284",
              "description": "CWE-284 Improper Access Control",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-02-11T15:55:12.000Z",
        "orgId": "2c85b837-eb8b-40ed-9d74-228c62987387",
        "shortName": "drupal"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.drupal.org/sa-core-2021-010"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@drupal.org",
          "ID": "CVE-2020-13677",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Core",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_name": "9.2.x",
                            "version_value": "9.2.6"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "9.1.x",
                            "version_value": "9.1.13"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "8.9.x",
                            "version_value": "8.9.19"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Drupal"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Under some circumstances, the Drupal core JSON:API module does not properly restrict access to certain content, which may result in unintended access bypass. Sites that do not have the JSON:API module enabled are not affected."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-284 Improper Access Control"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.drupal.org/sa-core-2021-010",
              "refsource": "CONFIRM",
              "url": "https://www.drupal.org/sa-core-2021-010"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2c85b837-eb8b-40ed-9d74-228c62987387",
    "assignerShortName": "drupal",
    "cveId": "CVE-2020-13677",
    "datePublished": "2022-02-11T15:55:12.000Z",
    "dateReserved": "2020-05-28T00:00:00.000Z",
    "dateUpdated": "2024-08-04T12:25:16.550Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.