GHSA-MJW9-3F9F-JQ2W

Vulnerability from github – Published: 2023-04-20 22:15 – Updated: 2023-04-28 22:05
VLAI?
Summary
XWiki Platform vulnerable to code injection from view right on XWiki.ClassSheet
Details

Impact

Any user with view rights 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. The attack works by opening a non-existing page with a name crafted to contain a dangerous payload.

For instance: Open <xwiki-host>/xwiki/bin/view/%22%2F%7D%7D%7B%7B%2Fhtml%7D%7D%20%7B%7Basync%20async%3D%22true%22%20cached%3D%22false%22%20context%3D%22doc.reference%22%7D%7D%7B%7Bgroovy%7D%7Dprintln(%22Hello%20%22%20%2B%20%22from%20groovy!%22)%7B%7B%2Fgroovy%7D%7D%7B%7B%2Fasync%7D%7D?sheet=XWiki.ClassSheet&xpage=view, where <xwiki-host> is the URL of your XWiki installation.

Patches

This has been patched in XWiki 14.4.8, 14.10.3 and 15.0RC1.

Workarounds

The fix is only impacting Velocity templates and page contents, so applying this patch is enough to fix the issue.

References

  • https://github.com/xwiki/xwiki-platform/commit/d7e56185376641ee5d66477c6b2791ca8e85cfee
  • https://jira.xwiki.org/browse/XWIKI-20456

For more information

If you have any questions or comments about this advisory:

Severity ?
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-xclass-ui"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.0-rc-1"
            },
            {
              "fixed": "14.4.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-xclass-ui"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "14.5"
            },
            {
              "fixed": "14.10.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-29522"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-74"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-04-20T22:15:35Z",
    "nvd_published_at": "2023-04-19T00:15:08Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nAny user with view rights 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. The attack works by opening a non-existing page with a name crafted to contain a dangerous payload.\n\nFor instance: `Open \u003cxwiki-host\u003e/xwiki/bin/view/%22%2F%7D%7D%7B%7B%2Fhtml%7D%7D%20%7B%7Basync%20async%3D%22true%22%20cached%3D%22false%22%20context%3D%22doc.reference%22%7D%7D%7B%7Bgroovy%7D%7Dprintln(%22Hello%20%22%20%2B%20%22from%20groovy!%22)%7B%7B%2Fgroovy%7D%7D%7B%7B%2Fasync%7D%7D?sheet=XWiki.ClassSheet\u0026xpage=view`, where `\u003cxwiki-host\u003e` is the URL of your XWiki installation.\n\n### Patches\nThis has been patched in XWiki 14.4.8, 14.10.3 and 15.0RC1.\n\n### Workarounds\nThe fix is only impacting Velocity templates and page contents, so applying this [patch](https://github.com/xwiki/xwiki-platform/commit/d7e56185376641ee5d66477c6b2791ca8e85cfee) is enough to fix the issue.\n\n### References\n- https://github.com/xwiki/xwiki-platform/commit/d7e56185376641ee5d66477c6b2791ca8e85cfee\n- https://jira.xwiki.org/browse/XWIKI-20456\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n\n-    Open an issue in [Jira XWiki.org](https://jira.xwiki.org/)\n-    Email us at [Security Mailing List](mailto:security@xwiki.org)",
  "id": "GHSA-mjw9-3f9f-jq2w",
  "modified": "2023-04-28T22:05:58Z",
  "published": "2023-04-20T22:15:35Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-mjw9-3f9f-jq2w"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-29522"
    },
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-platform/commit/d7e56185376641ee5d66477c6b2791ca8e85cfee"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/xwiki/xwiki-platform"
    },
    {
      "type": "WEB",
      "url": "https://jira.xwiki.org/browse/XWIKI-20456"
    }
  ],
  "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 Platform vulnerable to code injection from view right on XWiki.ClassSheet"
}


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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.



Detection rules are retrieved from Rulezet.