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[Onapsis Security Advisory 2010-010] Oracle Virtual Server Agent Local Privilege Escalation
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Onapsis Security Advisory 2010-0010: Oracle Virtual Server Agent Local Privilege Escalation
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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.
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
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
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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.
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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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