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From "Donald Woods (JIRA)" <j...@apache.org>
Subject [jira] Created: (GERONIMO-3549) Potential vulnerability in Apache Tomcat Webdav servlet
Date Wed, 24 Oct 2007 01:44:50 GMT
Potential vulnerability in Apache Tomcat Webdav servlet
-------------------------------------------------------

                 Key: GERONIMO-3549
                 URL: https://issues.apache.org/jira/browse/GERONIMO-3549
             Project: Geronimo
          Issue Type: Bug
      Security Level: public (Regular issues)
          Components: Tomcat
    Affects Versions: 2.0.2, 2.0.1, 2.0, 1.1.1, 1.2, 2.0.x, 2.1
            Reporter: Donald Woods
             Fix For: 2.0.x, 2.1


Subject: 	[SECURITY] Potential vulnerability in Apache Tomcat Webdav servlet
Date: 	Thu, 18 Oct 2007 13:40:24 -0400
From: 	Kevan Miller <kevan.miller@gmail.com>
Reply-To: 	dev@geronimo.apache.org
To: 	Geronimo Dev <dev@geronimo.apache.org>



The Geronimo project has learned of a security vulnerability in the 
Apache Tomcat Webdav Servlet implementation. If you use a Tomcat 
configuration of Geronimo and configure a write-enabled Webdav servlet, 
you may be affected by this vulnerability. If you do not configure the 
Webdav servlet or configure read-only Webdav servlets, you are not 
impacted by this vulnerability. Jetty configurations of Geronimo are not 
affected by this vulnerability. 

This vulnerability impacts all Geronimo releases. Up to and including 
Geronimo 2.0.2.

For specific information regarding the Tomcat issue, see http://mail-archives.apache.org/mod_mbox/tomcat-users/200710.mbox/%3c47135C2D.1000705@apache.org%3e

By default, Geronimo releases do not use the Webdav servlet. However, it 
is possible for the Webdav Servlet to be configured or referenced by a 
user-written application. 

The Webdav Servlet could be explicitly configured in a web.xml 
<http://web.xml/> deployment descriptor as follows:

         ...
    <servlet>
        <servlet-name>webdav</servlet-name>
        <servlet-class>org.apache.catalina.servlets.WebdavServlet</servlet-class>
        <init-param>
          <param-name>readonly</param-name>
          <param-value>false</param-value>
        </init-param>
    </servlet>

Alternatively, a user's application could extend the WebdavServlet, for 
example:

        import org.apache.catalina.servlets.WebdavServlet;
        public class MyServlet extends WebdavServlet {
   ...

   

If you configure a write-enabled Webdav servlet, we recommend that you:

  - Disable write access to the Webdav Servlet until this problem has 
been fixed, or
  - Limit access to the Webdav servlet to only trusted users.

This vulnerability will be fixed in the next release of Geronimo (2.0.3 
and/or 2.1). 

--kevan


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