[Onapsis Security Advisory 2011-006] Oracle JD Edwards JDENET Kernel Denial of Service

[Onapsis Research Labs <research@xxxxxxxxxxx>]

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Onapsis Security Advisory 2011-006: Oracle JD Edwards JDENET Kernel Denial of 
Service

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1. Impact on Business
=====================

By exploiting this vulnerability, an unauthenticated attacker would be able to 
remotely block certain functions of the JD Edwards server.
This would result in the unavailability of certain services running in the JD 
Edwards server. These services are not critical for the common operation
of the system.

- - Risk Level: Low


2. Advisory Information
=======================

- - Release Date: 2011-04-27

- - Last Revised: 2011-04-27

- - Security Advisory ID: ONAPSIS-2011-06

- - Onapsis SVS ID: ONAPSIS-00019

- - Researcher: Juan Pablo Perez Etchegoyen


3. Vulnerability Information
============================

- - Vendor: ORACLE

- - Affected Components:

* JD Edwards 9.0 EnterpriseOne Server + EnterpriseOne  Tools 8.98
(older versions might be also affected)

- - Vulnerability Class: Denial of service

- - Remotely Exploitable: Yes

- - Locally Exploitable: No

- - Authentication Required: No

- - Original Advisory: 
http://www.onapsis.com/resources/get.php?resid=adv_onapsis-2011-06


4. Affected Components Description
==================================

JDENet is a network communication middleware that performs network 
communications workstation-to-server and server-to-server. It is used to call
remote functions, to authenticate users and transmit information between hosts 
in a JD Edwards environment.


5. Vulnerability Details
========================

If a certain type of message, containing a specially-crafted Unicode data 
packet, is sent to the JDENET Service, the JDENET Kernel executes a system
call, using a user-provided value as the time parameter. This causes the 
service to stop responding for a period of time.

Further technical details about this issue are not disclosed at this moment 
with the purpose of providing enough time to affected customers to patch
their systems and protect against the exploitation of the described 
vulnerability.


6. Solution
===========

Apply Oracle Critical Patch update April ? 2010. More information available on 
http://www.oracle.com/technetwork/topics/security/cpuapr2011-301950.html

Onapsis strongly recommends Oracle customers to download the related security 
fixes and apply them to the affected components in order to reduce
business risks.


7. Report Timeline
==================

* 2010-09-20: Onapsis provides vulnerability information to Oracle.
* 2010-09-21: Oracle confirms reception of vulnerability submission.
* 2010-09-24: Oracle states vulnerability is under investigation.
* 2010-10-07: Oracle confirms vulnerability.
* 2011-04-19: Oracle releases fixes in CPU.
* 2011-04-27: Onapsis releases security advisory.


About Onapsis Research Labs
===========================

Onapsis is continuously investing resources in the research of the security of 
business critical systems and applications.

With that objective in mind, a special unit ? the Onapsis Research Labs ? has 
been developed since the creation of the company. The experts involved
in this special team lead the public research trends in this matter, having 
discovered and published many of the public security vulnerabilities in
these platforms.

The outcome of this advanced and cutting-edge research is continuously provided 
to the Onapsis Consulting and Development teams, improving the quality
of our solutions and enabling our customers to be protected from the latest 
risks to their critical business information.

Furthermore, the results of this research projects are usually shared with the 
general security and professional community, encouraging the sharing of
information and increasing the common knowledge in this field.


About Onapsis
=============

Onapsis is the leading provider of solutions for the security of ERP and 
business-critical systems and applications. Through different innovative
products and services, Onapsis helps its global customers to effectively 
increase the security level of their core business platforms, protecting
their information and decreasing financial fraud risks.

Onapsis is built upon a team of world-renowned experts in the ERP security 
field, with several years of experience in the assessment and protection of
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Fortune-500 companies and governmental entities.

Our star product, Onapsis X1, enables our customers to perform automated 
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info@xxxxxxxxxxx and visit our website at www.onapsis.com.

Copyright (c) 2011 Onapsis SRL. All rights reserved.
This advisory may be distributed as long as its distribution is free-of-charge 
and proper credit is given.

- -- 
- --------------------------------------------
The Onapsis Research Labs Team

Onapsis S.R.L
Email: research@xxxxxxxxxxx
Web: www.onapsis.com
PGP: http://www.onapsis.com/pgp/research.asc
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