CVE-2008-2938

Una vulnerabilidad de salto de directorio (Directory Traversal) en Apache Tomcat versión 4.1.0 hasta 4.1.37, versión 5.5.0 hasta 5.5.26 y versión 6.0.0 hasta 6.0.16, cuando están habilitados allowLinking y UTF-8, permite a atacantes remotos leer archivos arbitrarios por medio de secuencias de salto de directorio (Directory Traversal) en el URI, una vulnerabilidad diferente a CVE-2008-2370. NOTA: las versiones anteriores a 6.0.18 se informaron afectadas, pero el aviso del proveedor enumera 6.0.16 como la última versión afectada.

A number of vulnerabilities have been discovered in the Apache Tomcat server. The default catalina.policy in the JULI logging component did not restrict certain permissions for web applications which could allow a remote attacker to modify logging configuration options and overwrite arbitrary files. A cross-site scripting vulnerability was found in the HttpServletResponse.sendError() method which could allow a remote attacker to inject arbitrary web script or HTML via forged HTTP headers. A cross-site scripting vulnerability was found in the host manager application that could allow a remote attacker to inject arbitrary web script or HTML via the hostname parameter. A traversal vulnerability was found when using a RequestDispatcher in combination with a servlet or JSP that could allow a remote attacker to utilize a specially-crafted request parameter to access protected web resources. A traversal vulnerability was found when the 'allowLinking' and 'URIencoding' settings were actived which could allow a remote attacker to use a UTF-8-encoded request to extend their privileges and obtain local files accessible to the Tomcat process. The updated packages have been patched to correct these issues.