github - ghsa-5mf8-v43w-mfxp

GHSA-5MF8-V43W-MFXP

Vulnerability from github – Published: 2023-08-21 20:10 – Updated: 2023-08-21 20:10

Summary

XWiki Platform privilege escalation (PR) from account through AWM content fields

Details

Impact

Any registered user can use the content field of their user profile page to execute arbitrary scripts with programming rights, thus effectively performing rights escalation.

The problem is present since version 4.3M2 when AppWithinMinutes Application added support for the Content field, allowing any wiki page (including the user profile page) to use its content as an AWM Content field, which has a custom displayer that executes the content with the rights of the AppWithinMinutes.Content author, rather than the rights of the content author.

Patches

The issue has been fixed in XWiki 14.10.5 and 15.1RC1 by https://github.com/xwiki/xwiki-platform/commit/dfb1cde173e363ca5c12eb3654869f9719820262 . The fix is in the content of the AppWithinMinutes.Content page that defines the custom displayer. By using the display script service to render the content we make sure that the proper author is used for access rights checks.

Workarounds

If you want to fix this problem on older versions of XWiki that have not been patched then you need to modify the content of AppWithinMinutes.Content page to use the display script service to render the content, like this:

- {{html}}$tdoc.getRenderedContent($tdoc.content, $tdoc.syntax.toIdString()).replace('{{', '&amp;#123;&amp;#123;'){{/html}}
+ {{html}}$services.display.content($tdoc, {
+   'displayerHint': 'default'
+ }).replace('{{/html}}', '&amp;#123;&amp;#123;/html&amp;#125;&amp;#125;'){{/html}}

References

JIRA issue https://jira.xwiki.org/browse/XWIKI-19906
Fix https://github.com/xwiki/xwiki-platform/commit/dfb1cde173e363ca5c12eb3654869f9719820262

For more information

If you have any questions or comments about this advisory: * Open an issue in Jira XWiki.org * Email us at Security Mailing List

Attribution

This vulnerability has been found and reported by @michitux .

Severity ?

9.9 (Critical)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-appwithinminutes-ui"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.3-milestone-2"
            },
            {
              "fixed": "14.10.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-40177"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-95"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-08-21T20:10:55Z",
    "nvd_published_at": "2023-08-23T21:15:08Z",
    "severity": "CRITICAL"
  },
  "details": "### Impact\n\nAny registered user can use the content field of their user profile page to execute arbitrary scripts with programming rights, thus effectively performing rights escalation.\n\nThe problem is present [since version 4.3M2](https://jira.xwiki.org/browse/XWIKI-7369) when AppWithinMinutes Application added support for the Content field, allowing any wiki page (including the user profile page) to use its content as an AWM Content field, which has a custom displayer that executes the content with the rights of the ``AppWithinMinutes.Content`` author, rather than the rights of the content author.\n\n### Patches\n\nThe issue has been fixed in XWiki 14.10.5 and 15.1RC1 by https://github.com/xwiki/xwiki-platform/commit/dfb1cde173e363ca5c12eb3654869f9719820262 . The fix is in the content of the [AppWithinMinutes.Content](https://github.com/xwiki/xwiki-platform/commit/dfb1cde173e363ca5c12eb3654869f9719820262#diff-850f6875c40cf7932f40a985e99679a041891c6ee75d10239c06921c0019cf78R82) page that defines the custom displayer. By using the ``display`` script service to render the content we make sure that the proper author is used for access rights checks.\n\n### Workarounds\n\nIf you want to fix this problem on older versions of XWiki that have not been patched then you need to modify the content of ``AppWithinMinutes.Content`` page to use the ``display`` script service to render the content, like this:\n\n```\n- {{html}}$tdoc.getRenderedContent($tdoc.content, $tdoc.syntax.toIdString()).replace(\u0027{{\u0027, \u0027\u0026amp;#123;\u0026amp;#123;\u0027){{/html}}\n+ {{html}}$services.display.content($tdoc, {\n+   \u0027displayerHint\u0027: \u0027default\u0027\n+ }).replace(\u0027{{/html}}\u0027, \u0027\u0026amp;#123;\u0026amp;#123;/html\u0026amp;#125;\u0026amp;#125;\u0027){{/html}}\n```\n\n### References\n\n* JIRA issue https://jira.xwiki.org/browse/XWIKI-19906\n* Fix https://github.com/xwiki/xwiki-platform/commit/dfb1cde173e363ca5c12eb3654869f9719820262\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open an issue in [Jira XWiki.org](https://jira.xwiki.org/)\n* Email us at [Security Mailing List](mailto:security@xwiki.org)\n\n### Attribution\n\nThis vulnerability has been found and reported by @michitux .",
  "id": "GHSA-5mf8-v43w-mfxp",
  "modified": "2023-08-21T20:10:55Z",
  "published": "2023-08-21T20:10:55Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-5mf8-v43w-mfxp"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-40177"
    },
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-platform/commit/dfb1cde173e363ca5c12eb3654869f9719820262"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/xwiki/xwiki-platform"
    },
    {
      "type": "WEB",
      "url": "https://jira.xwiki.org/browse/XWIKI-7369"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "XWiki Platform privilege escalation (PR) from account through AWM content fields"
}

CVE-2023-40177 (GCVE-0-2023-40177)

Vulnerability from cvelistv5 – Published: 2023-08-23 20:11 – Updated: 2024-10-03 13:41

Summary

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any registered user can use the content field of their user profile page to execute arbitrary scripts with programming rights, thus effectively performing rights escalation. This issue is present since version 4.3M2 when AppWithinMinutes Application added support for the Content field, allowing any wiki page (including the user profile page) to use its content as an AWM Content field, which has a custom displayer that executes the content with the rights of the ``AppWithinMinutes.Content`` author, rather than the rights of the content author. The vulnerability has been fixed in XWiki 14.10.5 and 15.1RC1. The fix is in the content of the AppWithinMinutes.Content page that defines the custom displayer. By using the ``display`` script service to render the content we make sure that the proper author is used for access rights checks.

Severity ?

9.9 (Critical)


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

CWE

CWE-95 - Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')

Assigner

GitHub_M

References

URL

Tags

	https://github.com/xwiki/xwiki-platform/security/…	x_refsource_CONFIRM
	https://github.com/xwiki/xwiki-platform/commit/df…	x_refsource_MISC
	https://jira.xwiki.org/browse/XWIKI-7369	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	xwiki	xwiki-platform	Affected: >= 4.3-milestone-2, < 14.10.5

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T18:24:55.620Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-5mf8-v43w-mfxp",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-5mf8-v43w-mfxp"
          },
          {
            "name": "https://github.com/xwiki/xwiki-platform/commit/dfb1cde173e363ca5c12eb3654869f9719820262",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/xwiki/xwiki-platform/commit/dfb1cde173e363ca5c12eb3654869f9719820262"
          },
          {
            "name": "https://jira.xwiki.org/browse/XWIKI-7369",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://jira.xwiki.org/browse/XWIKI-7369"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-40177",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-03T13:41:24.610232Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-03T13:41:37.138Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "xwiki-platform",
          "vendor": "xwiki",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 4.3-milestone-2, \u003c 14.10.5"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any registered user can use the content field of their user profile page to execute arbitrary scripts with programming rights, thus effectively performing rights escalation. This issue is present since version 4.3M2 when AppWithinMinutes Application added support for the Content field, allowing any wiki page (including the user profile page) to use its content as an AWM Content field, which has a custom displayer that executes the content with the rights of the ``AppWithinMinutes.Content`` author, rather than the rights of the content author. The vulnerability has been fixed in XWiki 14.10.5 and 15.1RC1. The fix is in the content of the AppWithinMinutes.Content page that defines the custom displayer. By using the ``display`` script service to render the content we make sure that the proper author is used for access rights checks."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 9.9,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-95",
              "description": "CWE-95: Improper Neutralization of Directives in Dynamically Evaluated Code (\u0027Eval Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-08-23T20:11:45.227Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-5mf8-v43w-mfxp",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-5mf8-v43w-mfxp"
        },
        {
          "name": "https://github.com/xwiki/xwiki-platform/commit/dfb1cde173e363ca5c12eb3654869f9719820262",
          "tags": [
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          ],
          "url": "https://github.com/xwiki/xwiki-platform/commit/dfb1cde173e363ca5c12eb3654869f9719820262"
        },
        {
          "name": "https://jira.xwiki.org/browse/XWIKI-7369",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://jira.xwiki.org/browse/XWIKI-7369"
        }
      ],
      "source": {
        "advisory": "GHSA-5mf8-v43w-mfxp",
        "discovery": "UNKNOWN"
      },
      "title": "XWiki Platform privilege escalation (PR) from account through AWM content fields"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2023-40177",
    "datePublished": "2023-08-23T20:11:45.227Z",
    "dateReserved": "2023-08-09T15:26:41.052Z",
    "dateUpdated": "2024-10-03T13:41:37.138Z",
    "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

GHSA-5MF8-V43W-MFXP

Impact

Patches

Workarounds

References

For more information

Attribution

CVE-2023-40177 (GCVE-0-2023-40177)

Tags

Sightings

Nomenclature