AUSCERT External Security Bulletin Redistribution

                 ESB-2001.455 -- CERT Advisory CA-2001-29
            Oracle9iAS Web Cache vulnerable to buffer overflow
                              26 October 2001


        AusCERT Security Bulletin Summary

Product:                Oracle9iAS Web Cache
Vendor:                 Oracle
Impact:                 Execute Arbitrary Code/Commands
                        Access Confidential Data
Access Required:        Remote

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CERT Advisory CA-2001-29 Oracle9iAS Web Cache vulnerable to buffer overflow

   Original release date: October 25, 2001
   Last revised: --
   Source: CERT/CC

   A complete revision history can be found at the end of this file.

Systems Affected

   Systems running:

     * Oracle9iAS Web Cache


   A remotely exploitable buffer overflow in the Oracle9iAS Web Cache
   allows intruders to execute arbitrary code or disrupt the normal
   operation of Web Cache.

I. Description

   Defcom Labs has discovered a remotely exploitable buffer overflow
   vulnerability in the Oracle9iAS Web Cache (on all platforms) that
   allows intruders to either execute arbitrary code with the
   privileges of the Web Cache process, or disrupt the normal
   operation of Web Cache.  The Oracle9iAS Web Cache provides four web
   services that are all vulnerable and enabled by default when the
   software is installed.  For more information about these web
   services, please see the Oracle9iAS Web Cache Administration and
   Deployment Guide (registration required).  These services and the
   associated ports they listen on are listed below:

     * 1100/tcp (incoming web cache proxy)
     * 4000/tcp (administrative interface)
     * 4001/tcp (web XML invalidation port)
     * 4002/tcp (statistics port)

   Additional information regarding this vulnerability is available at


II. Impact

   An intruder can execute arbitrary code with the privileges of the
   web cache process or disrupt the normal operation of Web Cache.
   Additionally, an intruder might be able to intercept and/or modify
   sensitive data such as credentials and other types of sensitive
   information passing through the host running Web Cache. Finally, an
   intruder may be able to gain access to other systems by using Web
   Cache as an entry point into the network or by leveraging an
   existing trust relationship between Web Cache and another system.

III. Solution

   Install a patch from Oracle. More information is available in
   Appendix A.

Appendix A. - Vendor Information

   This appendix contains information provided by vendors for this
   advisory.  When vendors report new information to the CERT/CC, we
   update this section and note the changes in our revision
   history. If a particular vendor is not listed below, we have not
   received their comments.


  Please see http://otn.oracle.com/deploy/security/pdf/webcache.pdf

Appendix B. - References

  1. http://otn.oracle.com/deploy/security/pdf/webcache.pdf
  2. http://www.kb.cert.org/vuls/id/649979
  3. http://www.securityfocus.com/archive/1/3BCEE434.F597D815@defcom.com

   The CERT Coordination Center thanks Defcom Security, who discovered
   this vulnerability and published the information in their advisory.
   Additionally, we thank Oracle, who published an advisory on this

   Author: Ian A. Finlay.

   This document is available from:

CERT/CC Contact Information

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   Any material furnished by Carnegie Mellon University and the
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   Conditions for use, disclaimers, and sponsorship information

   Copyright 2001 Carnegie Mellon University.

   Revision History

   October 25, 2001:  initial release

Version: PGP 6.5.8


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