CVE-2014-0096

java/org/apache/catalina/servlets/DefaultServlet.java en el servlet por defecto en Apache Tomcat anterior a 6.0.40, 7.x anterior a 7.0.53 y 8.x anterior a 8.0.4 no restringe debidamente hojas de estilo XSLT, lo que permite a atacantes remotos evadir restricciones de jefe de seguridad y leer archivos arbitrarios a través de una aplicación web manipulada que proporciona una declaración de entidad externa XML en conjunto con un referencia de entidad, relacionado con un problema de entidad externa XML (XXE).

It was found that the org.apache.catalina.servlets.DefaultServlet implementation in JBoss Web / Apache Tomcat allowed the definition of XML External Entities (XXEs) in provided XSLTs. A malicious application could use this to circumvent intended security restrictions to disclose sensitive information.

Integer overflow in the parseChunkHeader function in java/org/apache/coyote/http11/filters/ChunkedInputFilter.java in Apache Tomcat before 6.0.40 and 7.x before 7.0.53 allows remote attackers to cause a denial of service via a malformed chunk size in chunked transfer coding of a request during the streaming of data. java/org/apache/catalina/servlets/DefaultServlet.java in the default servlet in Apache Tomcat before 6.0.40 and 7.x before 7.0.53 does not properly restrict XSLT stylesheets, which allows remote attackers to bypass security-manager restrictions and read arbitrary files via a crafted web application that provides an XML external entity declaration in conjunction with an entity reference, related to an XML External Entity issue. Various other issues have also been addressed.