Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2023-27479

Gravedad CVSS v3.1:
CRÍTICA
Tipo:
CWE-74 Neutralización incorrecta de elementos especiales en la salida utilizada por un componente interno (Inyección)
Fecha de publicación:
07/03/2023
Última modificación:
07/11/2023

Descripción

*** Pendiente de traducción *** XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. In affected versions any user with view rights 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 UIX parameters. A proof of concept exploit is to log in, add an `XWiki.UIExtensionClass` xobject to the user profile page, with an Extension Parameters content containing `label={{/html}} {{async async="true" cached="false" context="doc.reference"}}{{groovy}}println("Hello " + "from groovy!"){{/groovy}}{{/async}}`. Then, navigating to `PanelsCode.ApplicationsPanelConfigurationSheet` (i.e., `/xwiki/bin/view/PanelsCode/ApplicationsPanelConfigurationSheet` where `` is the URL of your XWiki installation) should not execute the Groovy script. If it does, you will see `Hello from groovy!` displayed on the screen. This vulnerability has been patched in XWiki 13.10.11, 14.4.7 and 14.10-rc-1. Users are advised to upgrade. For users unable to upgrade the issue can be fixed by editing the `PanelsCode.ApplicationsPanelConfigurationSheet` wiki page and making the same modifications as shown in commit `6de5442f3c`.

Productos y versiones vulnerables

CPE Desde Hasta
cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:* 6.3 (excluyendo) 13.10.11 (excluyendo)
cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:* 14.0 (incluyendo) 14.4.7 (excluyendo)
cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:* 14.5 (incluyendo) 14.10 (excluyendo)
cpe:2.3:a:xwiki:xwiki:6.3:-:*:*:*:*:*:*
cpe:2.3:a:xwiki:xwiki:6.3:milestone1:*:*:*:*:*:*
cpe:2.3:a:xwiki:xwiki:6.3:milestone2:*:*:*:*:*:*