[SECURITY-L] CAIS-Alerta: Multiplas Vulnerabilidades em Servidores Oracle

Qui Fev 20 11:56:05 -03 2003

Subject: CAIS-Alerta: Multiplas Vulnerabilidades em Servidores Oracle
    Date: Thu, 20 Feb 2003 11:00:21 -0300 (BRT)
   From: Centro de Atendimento a Incidentes de Seguranca
<cais em cais.rnp.br>
       To: rnp-alerta em cais.rnp.br, rnp-seg em cais.rnp.br

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Prezados,

O CAIS está repassando o alerta divulgado pelo CERT/CC, CERT Advisory
CA-2003-05 Multiple Vulnerabilities in Oracle Servers, tratando da
identificacao de varias vulnerabilidades nos servidores Oracle, sendo
que
a maioria delas é de buffer overflow.

A exploracao de tais vulnerabilidades pode permitir a um atacante:
executar codigo arbitrario no sistema; ler, modificar ou remover
informacoes armazenadas nas bases de dados Oracle; ou ainda, causar
denial
of service.

Sistemas afetados:

Sao afetados pelas vulnerabilidades citadas neste alerta, os sistemas
que
executam os seguintes software:

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

Correções disponíveis:

Para corrigir o problema, devem ser aplicados os patches recomendados de

acordo com as orientacoes do fabricante. Solucoes especificas para cada
uma das vulnerabilidades citadas, sao encontradas nos alertas de
seguranca
publicados pela Oracle, pela NGSSoftware e CERT Vulnerability Notes.
Todas
as referencias estao listadas abaixo.

Mais informações:

        . http://www.cert.org/advisories/CA-2003-05.html
        . http://www.kb.cert.org/vuls/id/849993
        . 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://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

Identificador do CVE:  CAN-2002-0842 (http://cve.mitre.org)

O CAIS recomenda aos administradores que atualizem seus sistemas Oracle,

seguindo as recomendacoes descritas neste alerta.

Atenciosamente,

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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 em cert.org
          Phone: +1 412-268-7090 (24-hour hotline)
          Fax: +1 412-268-6989
          Postal address:
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          U.S.A.

   CERT/CC   personnel   answer  the  hotline  08:00-17:00  EST(GMT-5)
/
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   Revision History
   February 19, 2003:  Initial release

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