[Full-disclosure] Team SHATTER Security Advisory: OracleRemExecService command execution via named pipe vulnerability

[Shatter <shatter@xxxxxxxxxxxxx>]

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TeamSHATTER Security Advisory

January 20, 2011

Risk Level:
Medium

Affected versions:
Oracle Database Server version 10gR2, 11gR1 and 11gR2

Remote exploitable:
No

Credits:
This vulnerability was discovered and researched by Martin Rakhmanov of 
Application Security Inc.

Details:
It is possible to execute arbitrary operating system commands as localsystem 
when certain maintenance tasks are executed.
For instance, when Database Configuration Assistant is invoked or Oracle 
Universal Installer is used to modify features.
These tools use a Windows service to execute various commands: the service 
itself relies on a named pipe to receive the
commands. The pipe handling is not secure enough resulting in the vulnerability.

Impact:
It is possible for a local user to execute code as localsystem.

Vendor Status:
Vendor was contacted and a patch was released.

Workaround:
There is no workaround for this vulnerability. This vulnerability affects 
Windows platforms only.

Fix:
Apply Oracle Critical Patch Update January 2011 available at Oracle Metalink.

CVE:
CVE-2010-4423

Links:
http://www.oracle.com/technetwork/topics/security/cpujan2011-194091.html
http://www.teamshatter.com/topics/security-advisory/advisory-oracleremexecservice-command-excution-via-named-pipe-vulnerability-windows-only

Timeline:
Vendor Notification - 8/10/2010
Vendor Response - 8/11/2010
Fix - 1/18/2011
Public Disclosure - 1/20/2011

Application Security, Inc's database security solutions have helped over 2000 
organizations secure their databases from all internal and external threats 
while also ensuring that those organizations meet or exceed regulatory 
compliance and audit requirements.

Disclaimer: The information in the advisory is believed to be accurate at the 
time of publishing based on currently available information. Use of the 
information constitutes acceptance for use in an AS IS condition. There are no 
warranties with regard to this information. Neither the author nor the 
publisher accepts any liability for any direct, indirect, or consequential loss 
or damage arising from use of, or reliance on, this information.
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