cvelistv5 - CVE-2021-21379

CVE-2021-21379

Vulnerability from cvelistv5

Published

2021-03-12 17:30

Modified

2024-08-03 18:09

Severity ?

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

Summary

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. In affected versions of XWiki Platform, the `{{wikimacrocontent}}` executes the content with the rights of the wiki macro author instead of the caller of that wiki macro. This makes possible to inject scripts through it and they will be executed with the rights of the wiki macro (very often a user which has Programming rights). Fortunately, no such macro exists by default in XWiki Standard but one could have been created or installed with an extension. This vulnerability has been patched in versions XWiki 12.6.3, 11.10.11 and 12.8-rc-1. There is no easy workaround other than disabling the affected macros. Inserting content in a safe way or knowing what is the user who called the wiki macro is not easy.

References

URL	Tags
security-advisories@github.com	https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-v662-xpcc-9xf6	Third Party Advisory
security-advisories@github.com	https://jira.xwiki.org/browse/XWIKI-17759	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-v662-xpcc-9xf6	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://jira.xwiki.org/browse/XWIKI-17759	Vendor Advisory

Impacted products

Vendor

Product

Version

▼

xwiki

xwiki-platform

Version: >= 11.4.0, < 11.10.11
Version: >= 12.0.0, < 12.6.3
Version: >= 12.7.0, < 12.8-rc-1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T18:09:15.922Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-v662-xpcc-9xf6"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://jira.xwiki.org/browse/XWIKI-17759"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "xwiki-platform",
          "vendor": "xwiki",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 11.4.0, \u003c 11.10.11"
            },
            {
              "status": "affected",
              "version": "\u003e= 12.0.0, \u003c 12.6.3"
            },
            {
              "status": "affected",
              "version": "\u003e= 12.7.0, \u003c 12.8-rc-1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. In affected versions of XWiki Platform, the `{{wikimacrocontent}}` executes the content with the rights of the wiki macro author instead of the caller of that wiki macro. This makes possible to inject scripts through it and they will be executed with the rights of the wiki macro (very often a user which has Programming rights). Fortunately, no such macro exists by default in XWiki Standard but one could have been created or installed with an extension. This vulnerability has been patched in versions XWiki 12.6.3, 11.10.11 and 12.8-rc-1. There is no easy workaround other than disabling the affected macros. Inserting content in a safe way or knowing what is the user who called the wiki macro is not easy."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-281",
              "description": "CWE-281 Improper Preservation of Permissions",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-03-12T17:30:15",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-v662-xpcc-9xf6"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://jira.xwiki.org/browse/XWIKI-17759"
        }
      ],
      "source": {
        "advisory": "GHSA-v662-xpcc-9xf6",
        "discovery": "UNKNOWN"
      },
      "title": "It\u0027s possible to execute anything with the rights of the author of a macro which uses the {{wikimacrocontent}} macro",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2021-21379",
          "STATE": "PUBLIC",
          "TITLE": "It\u0027s possible to execute anything with the rights of the author of a macro which uses the {{wikimacrocontent}} macro"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "xwiki-platform",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003e= 11.4.0, \u003c 11.10.11"
                          },
                          {
                            "version_value": "\u003e= 12.0.0, \u003c 12.6.3"
                          },
                          {
                            "version_value": "\u003e= 12.7.0, \u003c 12.8-rc-1"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "xwiki"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. In affected versions of XWiki Platform, the `{{wikimacrocontent}}` executes the content with the rights of the wiki macro author instead of the caller of that wiki macro. This makes possible to inject scripts through it and they will be executed with the rights of the wiki macro (very often a user which has Programming rights). Fortunately, no such macro exists by default in XWiki Standard but one could have been created or installed with an extension. This vulnerability has been patched in versions XWiki 12.6.3, 11.10.11 and 12.8-rc-1. There is no easy workaround other than disabling the affected macros. Inserting content in a safe way or knowing what is the user who called the wiki macro is not easy."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-281 Improper Preservation of Permissions"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-v662-xpcc-9xf6",
              "refsource": "CONFIRM",
              "url": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-v662-xpcc-9xf6"
            },
            {
              "name": "https://jira.xwiki.org/browse/XWIKI-17759",
              "refsource": "MISC",
              "url": "https://jira.xwiki.org/browse/XWIKI-17759"
            }
          ]
        },
        "source": {
          "advisory": "GHSA-v662-xpcc-9xf6",
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2021-21379",
    "datePublished": "2021-03-12T17:30:15",
    "dateReserved": "2020-12-22T00:00:00",
    "dateUpdated": "2024-08-03T18:09:15.922Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-21379\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2021-03-12T18:15:12.873\",\"lastModified\":\"2024-11-21T05:48:14.170\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. In affected versions of XWiki Platform, the `{{wikimacrocontent}}` executes the content with the rights of the wiki macro author instead of the caller of that wiki macro. This makes possible to inject scripts through it and they will be executed with the rights of the wiki macro (very often a user which has Programming rights). Fortunately, no such macro exists by default in XWiki Standard but one could have been created or installed with an extension. This vulnerability has been patched in versions XWiki 12.6.3, 11.10.11 and 12.8-rc-1. There is no easy workaround other than disabling the affected macros. Inserting content in a safe way or knowing what is the user who called the wiki macro is not easy.\"},{\"lang\":\"es\",\"value\":\"XWiki Platform es una plataforma wiki gen\u00e9rica que ofrece servicios de tiempo de ejecuci\u00f3n para aplicaciones creadas sobre ella.\u0026#xa0;En las versiones afectadas de la plataforma XWiki, el \\\"{{wikimacrocontent}}\\\" ejecuta el contenido con los derechos de autor de la macro wiki en lugar del autor de la llamada de esa macro wiki.\u0026#xa0;Esto hace posible inyectar scripts por medio de \u00e9l y se ejecutar\u00e1n con los derechos de la macro wiki (muy a menudo un usuario que presenta derechos de programaci\u00f3n).\u0026#xa0;Afortunadamente, tal macro no se presenta por defecto en XWiki Standard, pero podr\u00eda haber sido creada o instalada con una extensi\u00f3n.\u0026#xa0;Esta vulnerabilidad ha sido parcheada en versiones XWiki 12.6.3, 11.10.11 y 12.8-rc-1.\u0026#xa0;No existe una soluci\u00f3n alternativa sencilla que no sea la de deshabilitar las macros afectadas.\u0026#xa0;Insertar contenido de manera segura o saber cu\u00e1l es el usuario que llam\u00f3 a la macro wiki no es f\u00e1cil\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N\",\"baseScore\":7.7,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.3,\"impactScore\":5.8},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N\",\"baseScore\":5.4,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.3,\"impactScore\":2.7}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:S/C:N/I:P/A:N\",\"baseScore\":3.5,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":6.8,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":true}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-281\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"11.4\",\"versionEndExcluding\":\"11.10.11\",\"matchCriteriaId\":\"C3567E50-73AF-43E4-936B-BA4E992DAC20\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"12.0\",\"versionEndExcluding\":\"12.6.3\",\"matchCriteriaId\":\"053136E4-CF15-4B19-90DD-2C97F4A4B1EB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"12.7\",\"versionEndIncluding\":\"12.7.1\",\"matchCriteriaId\":\"832C25BB-74B9-400E-8396-406BA2FC5A9F\"}]}]}],\"references\":[{\"url\":\"https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-v662-xpcc-9xf6\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://jira.xwiki.org/browse/XWIKI-17759\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-v662-xpcc-9xf6\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://jira.xwiki.org/browse/XWIKI-17759\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}"
  }
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

CVE-2021-21379

Vulnerability from cvelistv5

gsd-2021-21379

Vulnerability from gsd

ghsa-v662-xpcc-9xf6

Vulnerability from github

Impact

Patches

Workarounds

References

For more information

Tags

Sightings

Nomenclature