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CA-2003-05 Multiple Vulnerabilities in Oracle Servers

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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

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______________________________________________________________________

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
fitness for a particular purpose or merchantability, exclusivity or
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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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