[Full-disclosure] [Onapsis Security Advisory 2010-005] SAP J2EE Telnet Administration Security Check Bypass

[Onapsis Research Labs <research@xxxxxxxxxxx>]

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Onapsis Security Advisory 2010-005: SAP J2EE Telnet Administration Security 
Check Bypass

This advisory can be downloaded in PDF format from 
http://www.onapsis.com/research.html.
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1. Impact on Business
=====================

By exploiting this vulnerability, an internal or external attacker would be 
able to retrieve sensitive technical information from the SAP J2EE system.

This information can be used to replay authentication credentials and perform 
sensitive operations over the SAP landscape, possibly taking remote
control of the affected systems.

- - Risk Level: Medium


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

- - Release Date: 2010-06-16

- - Last Revised: 2010-06-16

- - Security Advisory ID: ONAPSIS-2010-005

- - Onapsis SVS ID: ONAPSIS-00003

- - Researcher: Mariano Nuñez Di Croce


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

- - Vendor: SAP

- - Affected Components:

        . SAP-JEECOR 6.40
        . SAP-JEECOR 7.00
        . SAP-JEECOR 7.01
        . SAP-JEECOR 7.02
        . SERVERCORE 7.10
        . SERVERCORE 7.11
        . SERVERCORE 7.20
        . SERVERCORE 7.30
        (Check SAP Note 1425847 for detailed information on affected releases)

- - Vulnerability Class: SMB Relay

- - Remotely Exploitable: Yes

- - Locally Exploitable: Yes

- - Authentication Required: Yes

- - Original Advisory: 
http://www.onapsis.com/resources/get.php?resid=adv_onapsis-2010-005


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

The SAP J2EE Engine is a key component of the SAP NetWeaver application 
platform, which enables the development and execution of Java solutions in SAP
landscapes.

The J2EE Engine is the component on which, for example, the SAP Enterprise 
Portal solution is built and executed.


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

The J2EE Engine contains a Telnet interface, which enables the administration 
of certain components of the SAP J2EE instances. Due to an error in the
validation of command arguments, it is possible to bypass certain security 
restrictions and perform SMB relay attacks against the system.

Onapsis is not distributing technical details about this issue to the general 
public at this moment in order to provide enough time to affected
customers to patch their systems and protect against the exploitation of the 
described vulnerability.


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

SAP has released SAP Note 1425847, which provides a patched version of the 
affected components.

This patch can be downloaded from 
https://service.sap.com/sap/support/notes/1425847

Onapsis strongly recommends SAP customers to download the related security fix 
and apply it to the affected components in order to reduce business risks.


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

        . 2009-11-24: Onapsis provides vulnerability information to SAP.
        . 2009-11-24: SAP confirms reception of vulnerability submission.
        . 2010-05-12: SAP releases security patch.
        . 2010-06-16: 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 SAP security 
field, with several years of experience in the assessment and protection of
critical platforms in world-wide customers, such as Fortune-500 companies and 
governmental entities.

Some of our featured services include SAP Penetration Testing, SAP Gateway & 
RFC security, SAP Enterprise Portal security assessment, Security Support
for SAP Implementations and Upgrades, SAP System Hardening and SAP Technical 
Security Audits.

For further information about our solutions, please contact us at 
info@xxxxxxxxxxx and visit our website at www.onapsis.com.


Copyright (c) 2010 Onapsis SRL. All rights reserved.
This advisory may be distributed as long as its distribution is free-of-charge 
and proper credit is given.

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