GHSA-V2RR-XW95-WCJX

Vulnerability from github – Published: 2023-10-25 21:03 – Updated: 2023-11-01 05:55
VLAI?
Summary
Privilege escalation (PR)/remote code execution from account through Menu.UIExtensionSheet
Details

Impact

Any user who can edit their own user profile can execute arbitrary script macros including Groovy and Python macros that allow remote code execution including unrestricted read and write access to all wiki contents. This can be reproduced with the following steps:

  1. As an advanced user, use the object editor to add an object of type UIExtensionClass to your user profile. Set the value "Extension Point ID" to {{/html}}{{async async=false cache=false}}{{groovy}}println("Hello from Groovy!"){{/groovy}}{{/async}}
  2. Open <xwiki-host>/xwiki/bin/edit/XWiki/<username>?sheet=Menu.UIExtensionSheet where <xwiki-host> is the URL of your XWiki installation and <username> is your user name.

If the text Hello from Groovy!" selected="selected"> is displayed in the output, the attack succeeded.

Patches

This has been patched in XWiki 14.10.8 and 15.3 RC1 by adding proper escaping.

Workarounds

The patch can be manually applied to the document Menu.UIExtensionSheet, only three lines need to be changed.

References

  • https://jira.xwiki.org/browse/XWIKI-20746
  • https://github.com/xwiki/xwiki-platform/commit/9e8f080094333dec63a8583229a3799208d773be
Severity ?
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-menu"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.1-rc-1"
            },
            {
              "fixed": "14.10.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-menu-ui"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.1-rc-1"
            },
            {
              "fixed": "14.10.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-menu-ui"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "15.0-rc-1"
            },
            {
              "fixed": "15.3-rc-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-37909"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94",
      "CWE-95"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-10-25T21:03:11Z",
    "nvd_published_at": "2023-10-25T18:17:28Z",
    "severity": "HIGH"
  },
  "details": "### Impact\nAny user who can edit their own user profile can execute arbitrary script macros including Groovy and Python macros that allow remote code execution including unrestricted read and write access to all wiki contents. This can be reproduced with the following steps:\n\n1. As an advanced user, use the object editor to add an object of type `UIExtensionClass` to your user profile. Set the value \"Extension Point ID\" to `{{/html}}{{async async=false cache=false}}{{groovy}}println(\"Hello from Groovy!\"){{/groovy}}{{/async}}`\n2. Open `\u003cxwiki-host\u003e/xwiki/bin/edit/XWiki/\u003cusername\u003e?sheet=Menu.UIExtensionSheet` where `\u003cxwiki-host\u003e` is the URL of your XWiki installation and `\u003cusername\u003e` is your user name.\n\nIf the text `Hello from Groovy!\" selected=\"selected\"\u003e` is displayed in the output, the attack succeeded.\n\n### Patches\n\nThis has been patched in XWiki 14.10.8 and 15.3 RC1 by adding proper escaping.\n\n### Workarounds\nThe [patch](https://github.com/xwiki/xwiki-platform/commit/9e8f080094333dec63a8583229a3799208d773be#diff-47a5652d0c8e4601dac12bd9ab34b8bd688cb22a1b758ce7b774043658834662) can be manually applied to the document `Menu.UIExtensionSheet`, only three lines need to be changed.\n\n### References\n\n* https://jira.xwiki.org/browse/XWIKI-20746\n* https://github.com/xwiki/xwiki-platform/commit/9e8f080094333dec63a8583229a3799208d773be",
  "id": "GHSA-v2rr-xw95-wcjx",
  "modified": "2023-11-01T05:55:39Z",
  "published": "2023-10-25T21:03:11Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-v2rr-xw95-wcjx"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-37909"
    },
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-platform/commit/9e8f080094333dec63a8583229a3799208d773be"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/xwiki/xwiki-platform"
    },
    {
      "type": "WEB",
      "url": "https://jira.xwiki.org/browse/XWIKI-20746"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Privilege escalation (PR)/remote code execution from account through Menu.UIExtensionSheet"
}


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Sightings

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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.



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