ghsa-rj7p-xjv7-7229
Vulnerability from github
Published
2024-01-08 16:33
Modified
2024-01-08 18:36
Severity ?
10.0 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Summary
XWiki Remote Code Execution Vulnerability via User Registration
Details

Impact

XWiki is vulnerable to a remote code execution (RCE) attack through its user registration feature. This issue allows an attacker to execute arbitrary code by crafting malicious payloads in the "first name" or "last name" fields during user registration. This impacts all installations that have user registration enabled for guests.

To reproduce, register with any username and password and the following payload as "first name": ]]{{/html}}{{async}}{{groovy}}services.logging.getLogger("attacker").error("Attack succeeded){{/groovy}}{{/async}}. In the following page that confirms the success of the registration, the full first name should be displayed, linking to the created user. If the formatting is broken and a log message with content "ERROR attacker - Attack succeeded!" is logged, the attack succeeded.

Patches

This vulnerability has been patched in XWiki 14.10.17, 15.5.3 and 15.8 RC1.

Workarounds

In the administration of your wiki, under "Users & Rights" > "Registration" set the "Registration Successful Message" to the following code:

```velocity

set($message = $services.localization.render('core.register.successful', 'xwiki/2.1', ['USERLINK', $userName]))

set($userLink = $xwiki.getUserName("$userSpace$userName"))

{{info}}$message.replace('USERLINK', "{{html clean=false}}$userLink{{/html}}"){{/info}} ```

References

  • https://jira.xwiki.org/browse/XWIKI-21173
  • https://github.com/xwiki/xwiki-platform/commit/b290bfd573c6f7db6cc15a88dd4111d9fcad0d31
Show details on source website

To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-administration-ui"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.2"
            },
            {
              "fixed": "14.10.17"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-administration-ui"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "15.0-rc-1"
            },
            {
              "fixed": "15.5.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-administration-ui"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "15.6-rc-1"
            },
            {
              "fixed": "15.8-rc-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-21650"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-94",
      "CWE-95"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-01-08T16:33:14Z",
    "nvd_published_at": "2024-01-08T16:15:46Z",
    "severity": "CRITICAL"
  },
  "details": "### Impact\nXWiki is vulnerable to a remote code execution (RCE) attack through its user registration feature. This issue allows an attacker to execute arbitrary code by crafting malicious payloads in the \"first name\" or \"last name\" fields during user registration. This impacts all installations that have user registration enabled for guests.\n\nTo reproduce, register with any username and password and the following payload as \"first name\": `]]{{/html}}{{async}}{{groovy}}services.logging.getLogger(\"attacker\").error(\"Attack succeeded){{/groovy}}{{/async}}`. In the following page that confirms the success of the registration, the full first name should be displayed, linking to the created user. If the formatting is broken and a log message with content \"ERROR attacker - Attack succeeded!\" is logged, the attack succeeded.\n\n### Patches\nThis vulnerability has been patched in XWiki 14.10.17, 15.5.3 and 15.8 RC1.\n\n### Workarounds\n\nIn the administration of your wiki, under \"Users \u0026 Rights\" \u003e \"Registration\" set the \"Registration Successful Message\" to the following code:\n\n```velocity\n#set($message = $services.localization.render(\u0027core.register.successful\u0027, \u0027xwiki/2.1\u0027, [\u0027USERLINK\u0027, $userName]))\n#set($userLink = $xwiki.getUserName(\"$userSpace$userName\"))\n{{info}}$message.replace(\u0027USERLINK\u0027, \"{{html clean=false}}$userLink{{/html}}\"){{/info}}\n```\n\n### References\n* https://jira.xwiki.org/browse/XWIKI-21173\n* https://github.com/xwiki/xwiki-platform/commit/b290bfd573c6f7db6cc15a88dd4111d9fcad0d31",
  "id": "GHSA-rj7p-xjv7-7229",
  "modified": "2024-01-08T18:36:59Z",
  "published": "2024-01-08T16:33:14Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-rj7p-xjv7-7229"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-21650"
    },
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-platform/commit/b290bfd573c6f7db6cc15a88dd4111d9fcad0d31"
    },
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-platform/commit/cdf5be8c20b6b6fe6b9b56a6557561007859655f"
    },
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-platform/commit/ec608f303913f5e8af061f2a98506f49d69be60f"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/xwiki/xwiki-platform"
    },
    {
      "type": "WEB",
      "url": "https://jira.xwiki.org/browse/XWIKI-21173"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "XWiki Remote Code Execution Vulnerability via User Registration"
}


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