CVE-2024-21650: Xwiki platform administration ui Remote Code Execution Vulnerability

CRITICAL
Advisory Identifier: GHSA-rj7p-xjv7-7229
CVSS 10.0
CWE-94 CWE-95
Published
Advisory Summary

CVE-2024-21650 is a CRITICAL (CVSS 10.0) remote code execution vulnerability (CWE-94: Improper Control of Generation of Code ('Code Injection')) affecting Xwiki platform administration ui libraries in the Maven ecosystem. The issue involves xwiki remote code execution vulnerability via user registration. Remediation is available by upgrading affected packages to version 14.10.17, 15.5.3, 15.8-rc-1.

CVE-2024-21650 at a Glance

CVE Identifier CVE-2024-21650
GHSA Identifier GHSA-rj7p-xjv7-7229
Severity CRITICAL
CVSS v3.1 Base Score 10.0
CWE Classification CWE-94: Improper Control of Generation of Code ('Code Injection')
Affected Product Xwiki platform administration ui
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 10.0

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Changed (S:C)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2024-21650

To remediate this vulnerability, upgrade all affected Xwiki platform administration ui dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.xwiki.platform:xwiki-platform-administration-ui fixed: 14.10.17
<dependency>
    <groupId>org.xwiki.platform</groupId>
    <artifactId>xwiki-platform-administration-ui</artifactId>
    <version>14.10.17</version>
</dependency>
org.xwiki.platform:xwiki-platform-administration-ui fixed: 15.5.3
<dependency>
    <groupId>org.xwiki.platform</groupId>
    <artifactId>xwiki-platform-administration-ui</artifactId>
    <version>15.5.3</version>
</dependency>
org.xwiki.platform:xwiki-platform-administration-ui fixed: 15.8-rc-1
<dependency>
    <groupId>org.xwiki.platform</groupId>
    <artifactId>xwiki-platform-administration-ui</artifactId>
    <version>15.8-rc-1</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

mvn dependency:tree -Dincludes=org.xwiki.platform

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2024-21650, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.xwiki.platform

Analyze the terminal output to locate any version of Xwiki platform administration ui in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 14.10.17), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.xwiki.platform command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-94: Improper Control of Generation of Code ('Code Injection'), where the product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. In Xwiki platform administration ui, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### 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

CVE-2024-21650 Affected Xwiki platform administration ui Versions

3 component(s)
Fixed Versions:
14.10.1715.5.315.8-rc-1
Product / Package Ecosystem Affected Versions Fixed Version
org.xwiki.platform:xwiki-platform-administration-ui
Maven
≥ 2.2
< 14.10.17
14.10.17
org.xwiki.platform:xwiki-platform-administration-ui
Maven
≥ 15.0-rc-1
< 15.5.3
15.5.3
org.xwiki.platform:xwiki-platform-administration-ui
Maven
≥ 15.6-rc-1
< 15.8-rc-1
15.8-rc-1

References

Frequently Asked Questions

What is CVE-2024-21650?
CVE-2024-21650 is a security vulnerability in Xwiki platform administration ui involving XWiki Remote Code Execution Vulnerability via User Registration under CWE-94: Improper Control of Generation of Code ('Code Injection').
Which Xwiki platform administration ui versions are affected?
Affected versions include releases prior to 14.10.17, 15.5.3, 15.8-rc-1 across affected packages: org.xwiki.platform:xwiki-platform-administration-ui.
What version fixes CVE-2024-21650?
Upgrading to 14.10.17, 15.5.3, 15.8-rc-1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is xwiki-platform-administration-ui affected?
Yes, org.xwiki.platform:xwiki-platform-administration-ui is affected in releases prior to 14.10.17, 15.5.3, 15.8-rc-1. Upgrade your dependency to 14.10.17, 15.5.3, 15.8-rc-1 or later.
What is the CVSS score of CVE-2024-21650?
CVE-2024-21650 has a CVSS v3.1 base score of 10.0 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
What CWE is associated with CVE-2024-21650?
CVE-2024-21650 is classified under CWE-94: Improper Control of Generation of Code ('Code Injection') (The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.).
How can I check Maven dependencies for CVE-2024-21650?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.xwiki.platform'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-rj7p-xjv7-7229",
  "modified" : "2024-01-08T18:36:59Z",
  "published" : "2024-01-08T16:33:14Z",
  "aliases" : [ "CVE-2024-21650" ],
  "summary" : "XWiki Remote Code Execution Vulnerability via User Registration",
  "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 & Rights\" > \"Registration\" set the \"Registration Successful Message\" to the following code:\n\n```velocity\n#set($message = $services.localization.render('core.register.successful', 'xwiki/2.1', ['USERLINK', $userName]))\n#set($userLink = $xwiki.getUserName(\"$userSpace$userName\"))\n{{info}}$message.replace('USERLINK', \"{{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",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-administration-ui"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.2"
      }, {
        "fixed" : "14.10.17"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-administration-ui"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "15.0-rc-1"
      }, {
        "fixed" : "15.5.3"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-administration-ui"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "15.6-rc-1"
      }, {
        "fixed" : "15.8-rc-1"
      } ]
    } ]
  } ],
  "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"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-94", "CWE-95" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-01-08T16:33:14Z",
    "nvd_published_at" : "2024-01-08T16:15:46Z"
  }
}