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GHSA-35J5-M29R-XFQ5

Vulnerability from github – Published: 2023-10-25 21:07 – Updated: 2023-11-01 06:11
VLAI
Summary
XWiki Rendering's footnote macro vulnerable to privilege escalation via the footnote macro
Details

Impact

The footnote macro executed its content in a potentially different context than the one in which it was defined. In particular in combination with the include macro, this allows privilege escalation from a simple user account in XWiki to programming rights and thus remote code execution, impacting the confidentiality, integrity and availability of the whole XWiki installation.

To reproduce, perform the following steps:

  1. Edit your user profile with the object editor and add an object of type DocumentSheetBinding with value XWiki.ClassSheet
  2. Edit your user profile with the wiki editor and add the syntax {{footnote}}{{groovy}}println("Hello " + "from groovy!"){{/groovy}}{{/footnote}}

When the text "Hello from groovy!" is displayed at the bottom of the document, the installation is vulnerable. Instead, an error should be displayed.

Patches

This vulnerability has been patched in XWiki 14.10.6 and 15.1-rc-1.

Workarounds

There is no workaround apart from upgrading to a fixed version of the footnote macro.

References

  • https://jira.xwiki.org/browse/XRENDERING-688
  • https://github.com/xwiki/xwiki-rendering/commit/5f558b8fac8b716d19999225f38cb8ed0814116e
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.rendering:xwiki-rendering-macro-footnotes"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "14.10.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.rendering:xwiki-rendering-macro-footnotes"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "15.0-rc-1"
            },
            {
              "fixed": "15.1-rc-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-core-rendering-macro-footnotes"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "14.10.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-37912"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-270"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-10-25T21:07:42Z",
    "nvd_published_at": "2023-10-25T18:17:28Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nThe footnote macro executed its content in a potentially different context than the one in which it was defined. In particular in combination with the include macro, this allows privilege escalation from a simple user account in XWiki to programming rights and thus remote code execution, impacting the confidentiality, integrity and availability of the whole XWiki installation.\n\nTo reproduce, perform the following steps:\n\n1. Edit your user profile with the object editor and add an object of type DocumentSheetBinding with value XWiki.ClassSheet\n2. Edit your user profile with the wiki editor and add the syntax `{{footnote}}{{groovy}}println(\"Hello \" + \"from groovy!\"){{/groovy}}{{/footnote}}`\n\nWhen the text \"Hello from groovy!\" is displayed at the bottom of the document, the installation is vulnerable. Instead, an error should be displayed.\n\n### Patches\nThis vulnerability has been patched in XWiki 14.10.6 and 15.1-rc-1.\n\n### Workarounds\nThere is no workaround apart from upgrading to a fixed version of the footnote macro.\n\n### References\n* https://jira.xwiki.org/browse/XRENDERING-688\n* https://github.com/xwiki/xwiki-rendering/commit/5f558b8fac8b716d19999225f38cb8ed0814116e\n",
  "id": "GHSA-35j5-m29r-xfq5",
  "modified": "2023-11-01T06:11:10Z",
  "published": "2023-10-25T21:07:42Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-35j5-m29r-xfq5"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-37912"
    },
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-rendering/commit/5f558b8fac8b716d19999225f38cb8ed0814116e"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/xwiki/xwiki-rendering"
    },
    {
      "type": "WEB",
      "url": "https://jira.xwiki.org/browse/XRENDERING-688"
    }
  ],
  "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": "XWiki Rendering\u0027s footnote macro vulnerable to privilege escalation via the footnote macro"
}



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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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