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   Allaire Security Bulletin (ASB00-18)
   Patch available for JRun 3.0 EJB property disclosure issue
   
   Originally Posted: August 9, 2000
   Last Updated: August 9, 2000
   
   Summary
   A remotely accessible component of the JRun 3.0 EJB engine can allow
   unauthenticated access to portions of the server's configuration
   files. Although this issue technically affects only JRun's EJB users,
   Allaire strongly recommends that all JRun 3.0 administrators apply
   this patch.
   
   Issue
   The JRun server includes an Enterprise Java Beans (EJB) server, which
   is an optional part of the full functionality of the server. This
   issue directly affects developers and administrators who rely on this
   functionality.
   
   With minimum effort, it is possible for an attacker to obtain the
   configuration properties of the EJB server. Of most obvious importance
   is the accessibility of the properties that define users and roles
   that control access to EJBs in the server. This can compromise EJB
   security for any deployed EJB.
   
   Affected Software Versions
     * JRun 3.0 Developer edition
     * JRun 3.0 Enterprise edition
       
   What Allaire is Doing
   Allaire has published this bulletin, notifying customers of the
   problem. Allaire has also released a patch that should resolve the
   issue. The patch is available for immediate download and application.
   
   JRun 3.0 users can find the patch for installation at the following
   URIs -- use the patch appropriate to your platform -- instructions for
   installation are included:
   
   Windows 95/98/NT/2000 and Windows NT Alpha:
   [4]http://download.allaire.com/jrun/jrun3.0/jr30asb19.zip
   
   UNIX/Linux patch - GNU gzip/tar:
   [5]http://download.allaire.com/jrun/jrun3.0/jr30asb19.tar.gz
   
   Please Note: The JRun 3.0 patch for ASB00-18 and ASB00-19 is
   identical. If you have already installed the patch for one, you do not
   need to install it for the other.
   
   It is recommended you back up your existing data before applying any
   patch.
   
   What Customers Should Do
   Customers should download and apply the patch provided.
   
   Please note: As always, customers should test patch changes in a
   testing environment before modifying production servers.
   
   Acknowledgements
   In the course of working with Allaire to improve the security of JRun
   3.0, @stake discovered a security vulnerability and helped Allaire
   remedy the issue. Allaire acknowledges @stake's contribution to
   Allaire's user community and the security community at large.
   
   Revisions
   August 9, 2000 -- Bulletin first created.
   Reporting Security Issues
   Allaire is committed to addressing security issues and providing
   customers with the information on how they can protect themselves. If
   you identify what you believe may be a security issue with an Allaire
   product, please send an email to secure@allaire.com. We will work to
   appropriately address and communicate the issue.
   
   Receiving Security Bulletins
   When Allaire becomes aware of a security issue that we believe
   significantly affects our products or customers, we will notify
   customers when appropriate. Typically this notification will be in the
   form of a security bulletin explaining the issue and the response.
   Allaire customers who would like to receive notification of new
   security bulletins when they are released can sign up for our security
   notification service.
   
   For additional information on security issues at Allaire, please visit
   the Security Zone at:
   [6]http://www.allaire.com/security.
   THE INFORMATION PROVIDED BY ALLAIRE IN THIS BULLETIN IS PROVIDED "AS
   IS" WITHOUT WARRANTY OF ANY KIND. ALLAIRE DISCLAIMS ALL WARRANTIES,
   EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY
   AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ALLAIRE
   CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER
   INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF
   BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF ALLAIRE CORPORATION OR
   ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
   SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR
   CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY
   NOT APPLY.
   
   Allaire reserves the right, from time to time, to update the
   information in this document with current information.
   
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References

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   3. javascript:history.back()
   4. http://download.allaire.com/jrun/jrun3.0/jr30asb19.zip
   5. http://download.allaire.com/jrun/jrun3.0/jr30asb19.tar.gz
   6. http://www.allaire.com/security
   7. http://www.allaire.com/developer/year2000
   8. mailto:webmaster@allaire.com
   9. mailto:info@allaire.com
  10. http://www.allaire.com/privacy/