CVE-2023-41081

Importante: Omisión de Autenticación CVE-2023-41081. El componente mod_jk de Apache Tomcat Connectors en algunas circunstancias, como cuando una configuración incluía "JkOptions +ForwardDirectories" pero la configuración no proporcionaba mounts explícitos para todas las posibles solicitudes de proxy, mod_jk usaría un mapeo implícito y mapearía la solicitud al primer worker definido. Un mapeo implícito de este tipo podría dar como resultado la exposición no deseada del estado del worker y/o eludir las restricciones de seguridad configuradas en httpd. A partir de JK 1.2.49, la funcionalidad de asignación implícita se eliminó y todas las asignaciones ahora deben realizarse mediante una configuración explícita. Sólo mod_jk se ve afectado por este problema. El redirector ISAPI no se ve afectado. Este problema afecta a los conectores Apache Tomcat (solo mod_jk): desde la versión 1.2.0 hasta la 1.2.48. Se recomienda a los usuarios actualizar a la versión 1.2.49, que soluciona el problema. Historia: 2023-09-13. Aviso original: 2023-09-28. Resumen actualizado

A vulnerability was found in Apache Tomcat Connectors (mod_jk). Affected versions of this package are vulnerable to information exposure in the mod_jk component. This flaw allows an attacker to exploit the implicit mapping functionality, resulting in the unintended exposure of the status worker and bypassing security constraints configured in httpd.

Important: Authentication Bypass CVE-2023-41081 The mod_jk component of Apache Tomcat Connectors in some circumstances, such as when a configuration included "JkOptions +ForwardDirectories" but the configuration did not provide explicit mounts for all possible proxied requests, mod_jk would use an implicit mapping and map the request to the first defined worker. Such an implicit mapping could result in the unintended exposure of the status worker and/or bypass security constraints configured in httpd. As of JK 1.2.49, the implicit mapping functionality has been removed and all mappings must now be via explicit configuration. Only mod_jk is affected by this issue. The ISAPI redirector is not affected. This issue affects Apache Tomcat Connectors (mod_jk only): from 1.2.0 through 1.2.48. Users are recommended to upgrade to version 1.2.49, which fixes the issue. History 2023-09-13 Original advisory 2023-09-28 Updated summary

Karl von Randow discovered that mod_jk was vulnerable to an authentication bypass. If the configuration did not provide explicit mounts for all possible proxied requests, an attacker could possibly use this vulnerability to bypass security constraints configured in httpd.