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The U.S. Department of Energy
Computer Incident Advisory Capability
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INFORMATION BULLETIN
Multiple Vulnerabilities in Oracle Servers
[CERT Advisory CA-2003-05]
February 19, 2003 22:00 GMT Number N-046
______________________________________________________________________________
PROBLEM: 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.
PLATFORM: 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)
DAMAGE: 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.
SOLUTION: Apply patches or workaround as described in Oracle's Security
Alerts.
______________________________________________________________________________
VULNERABILITY The risk is MEDIUM. The most serious vulnerability may allow
ASSESSMENT: execution of arbitrary code by exploiting a buffer overflow in
the ORACLE.EXE binary. NOTE: This exploit can manifest only
when using a client application that does not place proper
limits on the size of data sent to the server.
______________________________________________________________________________
LINKS:
CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/n-046.shtml
ORIGINAL BULLETIN: http://www.cert.org/advisories/CA-2003-05.html
______________________________________________________________________________
[***** Start CERT Advisory CA-2003-05 *****]
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
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our web site
http://www.cert.org/
To subscribe to the CERT mailing list for advisories and bulletins,
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Patent and Trademark Office.
______________________________________________________________________
NO WARRANTY
Any material furnished by Carnegie Mellon University and the Software
Engineering Institute is furnished on an "as is" basis. Carnegie
Mellon University makes no warranties of any kind, either expressed or
implied as to any matter including, but not limited to, warranty of
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does not make any warranty of any kind with respect to freedom from
patent, trademark, or copyright infringement.
_________________________________________________________________
Conditions for use, disclaimers, and sponsorship information
Copyright 2003 Carnegie Mellon University.
Revision History
February 19, 2003: Initial release
[***** End CERT Advisory CA-2003-05 *****]
_______________________________________________________________________________
CIAC wishes to acknowledge the contributions of CERT Coordination Center and
Oracle Corporation for the information contained in this bulletin.
_______________________________________________________________________________
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