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 CVE-2008-5515: Apache Tomcat information disclosure vulnerability Severity: Important Vendor: The Apache Software Foundation Versions Affected: Tomcat 4.1.0 to 4.1.39 Tomcat 5.5.0 to 5.5.27 Tomcat 6.0.0 to 6.0.18 The unsupported Tomcat 3.x, 4.0.x and 5.0.x versions may be also affected Description: When using a RequestDispatcher obtained from the Request, the target path was normalised before the query string was removed. A request that included a specially crafted request parameter could be used to access content that would otherwise be protected by a security constraint or by locating it in under the WEB-INF directory. Mitigation: 6.0.x users should upgrade to 6.0.20 or apply this patch: http://svn.apache.org/viewvc?view=rev&revision=734734 5.5.x users should upgrade to 5.5.28 when released or apply this patch: http://svn.apache.org/viewvc?view=rev&revision=782757 4.1.x users should upgrade to 4.1.40 when released or apply this patch: http://svn.apache.org/viewvc?view=rev&revision=782763 Example: For a page that contains: <% request.getRequestDispatcher( "bar.jsp?somepar=someval&par=" + request.getParameter( "blah" ) ).forward( request, response ); %> an attacker can use: http://host/page.jsp?blah=/../WEB-INF/web.xml Credit: This issue was discovered by Iida Minehiko, Fujitsu Limited References: http://tomcat.apache.org/security.html

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