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20/02/03, CERT Advisory CA-2003-05 Multiple Vulnerabilities in Oracle Servers
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To: cert-advisory@cert.org
Subject: CERT Advisory CA-2003-05 Multiple Vulnerabilities in Oracle Servers
From: CERT Advisory <cert-advisory@cert.org>
Date: Wed, 19 Feb 2003 15:13:06 -0500
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CERT Advisory CA-2003-05 Multiple Vulnerabilities in Oracle Servers

   Original release date: February 19, 2003
   Last revised: --
   Source: CERT/CC

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

Systems Affected

     * Systems running Oracle9i Database (Release 1 and 2)
     * Systems running Oracle8i Database v 8.1.7
     * Systems running Oracle8 Database v 8.0.6
     * Systems  running  Oracle9i  Application  Server (Release 9.0.2 and 9.0.3)

Overview

   Multiple  vulnerabilities  exist  in  Oracle software that may lead to
   execution  of  arbitrary  code; the ability to read, modify, or delete
   information  stored  in  underlying  Oracle  databases;  or  denial of
   service.   All   of  these  vulnerabilites  were  discovered  by  Next
   Generation Security Software Ltd.

I. Description

   Multiple   vulnerabilities   exist  in  Oracle9i  Application  Server,
   Oracle9i  Database,  and  Oracle8i  Database.  The  majority  of these
   vulnerabilities are buffer overflows.

   Oracle has published Security Alerts describing these vulnerabilities.
   If you use Oracle products listed in the "Systems Affected" section of
   this  document,  we  strongly  encourage  you  to review the following
   Oracle Security Alerts and apply patches as appropriate:

     * Buffer Overflow in DIRECTORY parameter of Oracle9i Database Server
       http://otn.oracle.com/deploy/security/pdf/2003alert48.pdf

     * Buffer Overflow in TZ_OFFSET function of Oracle9i Database Server
       http://otn.oracle.com/deploy/security/pdf/2003alert49.pdf

     * Buffer  Overflow  in TO_TIMESTAMP_TZ function of Oracle9i Database Server
       http://otn.oracle.com/deploy/security/pdf/2003alert50.pdf

     * Buffer Overflow in ORACLE.EXE binary of Oracle9i Database Server
       http://otn.oracle.com/deploy/security/pdf/2003alert51.pdf

     * Two Vulnerabilities in Oracle9i Application Server
       http://otn.oracle.com/deploy/security/pdf/2003alert52.pdf

   NGSSoftware  Insight  Security  Research  Advisories  describing these
   issues are listed below:

     * Oracle9i Application Server Format String Vulnerability
       http://www.nextgenss.com/advisories/ora-appservfmtst.txt

     * Oracle TO_TIMESTAMP_TZ Remote System Buffer Overrun
       http://www.nextgenss.com/advisories/ora-tmstmpbo.txt

     * ORACLE bfilename function buffer overflow vulnerability
       http://www.nextgenss.com/advisories/ora-bfilebo.txt

     * Oracle TZ_OFFSET Remote System Buffer Overrun
       http://www.nextgenss.com/advisories/ora-tzofstbo.txt

     * Oracle unauthenticated remote system compromise
       http://www.nextgenss.com/advisories/ora-unauthrm.txt

   The CERT/CC has published vulnerability notes for each of these issues
   as  well. The vulnerability in Oracle's mod_dav module (VU#849993) has
   been as assigned CVE ID CAN-2002-0842.

II. Impact

   Depending  on  the  vulnerability  being exploited, an attacker may be
   able  to  execute  arbitrary code; read, modify, or delete information
   stored  in  underlying Oracle databases; or cause a denial of service.
   The vulnerabilities in "ORACLE.EXE" (VU#953746) and the WebDAV modules
   (VU#849993, VU#511194) may be exploited prior to authentication.

III. Solution

Apply a patch

   Solutions  for  specific  vulnerabilities  can  be  found in the above
   referenced   Oracle  Security  Alerts,  NGSSoftware  Insight  Security
   Research Advisories, and individual CERT/CC Vulnerability Notes.

Mitigation Strategies

   Until  a  patch can be applied, the CERT/CC recommends that vulnerable
   sites

     * disable unnecessary Oracle services
     * run Oracle services with the least privilege
     * restrict network access to Oracle services

Appendix A. Vendor Information

   This  appendix  contains information provided by vendors. When vendors
   report  new  information,  this section is updated and the changes are
   noted  in  the  revision  history. If a vendor is not listed below, we
   have not received their comments.

Oracle Corporation

     Please see the following Oracle Security Alerts:

     * http://otn.oracle.com/deploy/security/pdf/2003alert48.pdf 
     * http://otn.oracle.com/deploy/security/pdf/2003alert49.pdf 
     * http://otn.oracle.com/deploy/security/pdf/2003alert50.pdf 
     * http://otn.oracle.com/deploy/security/pdf/2003alert51.pdf
     * http://otn.oracle.com/deploy/security/pdf/2003alert52.pdf

Appendix B. References

     * http://otn.oracle.com/deploy/security/pdf/2003alert48.pdf
     * http://otn.oracle.com/deploy/security/pdf/2003alert49.pdf
     * http://otn.oracle.com/deploy/security/pdf/2003alert50.pdf
     * http://otn.oracle.com/deploy/security/pdf/2003alert51.pdf
     * http://otn.oracle.com/deploy/security/pdf/2003alert52.pdf
     * http://www.nextgenss.com/advisories/ora-appservfmtst.txt
     * http://www.nextgenss.com/advisories/ora-tmstmpbo.txt
     * http://www.nextgenss.com/advisories/ora-bfilebo.txt
     * http://www.nextgenss.com/advisories/ora-tzofstbo.txt
     * http://www.nextgenss.com/advisories/ora-unauthrm.txt
     * http://www.kb.cert.org/vuls/id/743954
     * http://www.kb.cert.org/vuls/id/953746
     * http://www.kb.cert.org/vuls/id/663786
     * http://www.kb.cert.org/vuls/id/840666
     * http://www.kb.cert.org/vuls/id/511194
     * http://www.kb.cert.org/vuls/id/849993
     * http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0842
     _________________________________________________________________

   The  CERT/CC  acknowledges both Next Generation Security Software Ltd.
   and  Oracle  for  providing  information  upon  which this document is
   based.
     _________________________________________________________________

   Feedback can be directed to the author: Ian A. Finlay.
   ______________________________________________________________________

   This document is available from:
   http://www.cert.org/advisories/CA-2003-04.html
   ______________________________________________________________________

CERT/CC Contact Information

   Email: cert@cert.org
          Phone: +1 412-268-7090 (24-hour hotline)
          Fax: +1 412-268-6989
          Postal address:
          CERT Coordination Center
          Software Engineering Institute
          Carnegie Mellon University
          Pittsburgh PA 15213-3890
          U.S.A.

   CERT/CC   personnel   answer  the  hotline  08:00-17:00  EST(GMT-5)  /
   EDT(GMT-4)  Monday  through  Friday;  they are on call for emergencies
   during other hours, on U.S. holidays, and on weekends.

Using encryption

   We  strongly  urge you to encrypt sensitive information sent by email.
   Our public PGP key is available from
   http://www.cert.org/CERT_PGP.key

   If  you  prefer  to  use  DES,  please  call the CERT hotline for more
   information.

Getting security information

   CERT  publications  and  other security information are available from
   our web site
   http://www.cert.org/

   To  subscribe  to  the CERT mailing list for advisories and bulletins,
   send  email  to majordomo@cert.org. Please include in the body of your
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   *  "CERT"  and  "CERT  Coordination Center" are registered in the U.S.
   Patent and Trademark Office.
   ______________________________________________________________________

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   Engineering  Institute  is  furnished  on  an  "as is" basis. Carnegie
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   Conditions for use, disclaimers, and sponsorship information

   Copyright 2003 Carnegie Mellon University.

   Revision History
February 19, 2003:  Initial release

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