[TriLUG] CERT Advisory for Oracle Server

Wed Feb 19 15:47:24 EST 2003

Just got this today:

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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 at 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

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

information.

Getting security information

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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

fitness for a particular purpose or merchantability, exclusivity or

results obtained from use of the material. Carnegie Mellon University

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

Revision History

February 19, 2003: Initial release

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