[Onapsis Security Advisory 2010-010] Oracle Virtual Server Agent Local Privilege Escalation

[Onapsis Research Labs <research@xxxxxxxxxxx>]

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 Onapsis Security Advisory 2010-0010: Oracle Virtual Server Agent Local 
Privilege Escalation

This advisory can be downloaded in PDF format from 
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1. Impact on Business
=====================

By exploiting this vulnerability, a local authenticated attacker would be able 
to  access the OVS agent and manage all virtual machines configured on
the OVS server.
This would result in the compromise of integrity, availability and 
confidentiality of every virtual machine deployed in the OVS server.

  - Risk Level: (Medium)


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

  - Release Date: 2010-11-02

  - Last Revised: 2010-11-02

  - Security Advisory ID: ONAPSIS-2010-010

  - Onapsis SVS ID: ONAPSIS-00015

  - Researcher: Juan Pablo Perez Etchegoyen


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

  - Vendor: ORACLE

  - Affected Components:

       * Oracle Virtual Server Agent 2.3

  - Vulnerability Class: Local privilege escalation

  - Remotely Exploitable: No

  - Locally Exploitable: Yes

  - Authentication Required: Yes

  - CVE: CVE-2010-3584

  - Initial Base CVSS v2:  4.3 (AV:L/AC:L/AU:S/C:P/I:P/A:P)

  - Original Advisory: 
http://www.onapsis.com/resources/get.php?resid=adv_onapsis-2010-010


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

"Oracle VM is server virtualization software which fully supports both Oracle 
and non-Oracle applications. Oracle VM offers scalable, low-cost server
virtualization that is three times more efficient than existing server 
virtualization products from other vendors. Oracle has also announced
certification of key Oracle products including Oracle Database, Oracle Fusion 
Middleware, Oracle Applications, and Oracle Real Application Clusters
with Oracle VM."

"Oracle VM Manager communicates with Oracle VM Agent to create and manage 
guests on an Oracle VM Server. Oracle VM Agent is installed and configured
during the installation of Oracle VM Server."

By default, Oracle VM Agent is executed, with a highly privileged user, 
typically root.


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

Oracle VM Agent stores user authentication data in files with weak permissions. 
This can be abused by a non privileged user to access cleartext
passwords and password hashes, leading to a privilege escalation attack.

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
===========

Apply Oracle Critical Patch Update October – 2010. More information available 
on http://www.oracle.com/technetwork/topics/security/cpuoct2010-175626.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.
        . 2010-10-12: Oracle releases fixes in CPU.
        . 2010-11-02: 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.

Our star product, Onapsis X1, enables our customers to perform automated 
Security & Compliance Audits, Vulnerability Assessments and Penetration Tests
over their SAP platform, helping them enforce compliance requirements, decrease 
financial fraud risks an reduce audit costs drastically.

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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