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

2010-11-0400:00:00

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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 http://www.onapsis.com/research.html.
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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)

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

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

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.

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.

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.

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 [email protected] and visit our
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