iDefense Security Advisory 07.28.08
http://labs.idefense.com/intelligence/vulnerabilities/
Jul 28, 2008

I. BACKGROUND

Hewlett-Packard's Internet Services provides end-user emulation of major
business applications and a single integrated view of the Internet
infrastructure. For more information, please visit following URL.

http://www.openview.hp.com/products/ovis/index.html

II. DESCRIPTION

Remote exploitation of a denial of service vulnerability in
Hewlett-Packard's Internet Services Probe Builder product allows an
unauthenticated attacker the ability to terminate any process.

The Probe Builder Service, PBOVISServer.exe, listens by default on TCP
port 32968. This process has a specific opcode that allows a remote
unauthenticated user to terminate any process on the system by
supplying a process ID number.

III. ANALYSIS

Exploitation allows an attacker to kill any process, including critical
system processes like services.exe, lsass.exe, csrss.exe. Killing a
system process usually results in a blue screen or a mandatory reboot
message. To exploit this vulnerability, the attacker must know the
process ID to terminate. For a remote attacker, it can brute force
process ID and cause the system to crash.

IV. DETECTION

iDefense has confirmed this vulnerability in HP's Internet Services
Probe Builder 2.2 for Windows with all updates applied.

V. WORKAROUND

Employing firewalls to limit access to the affected service will
mitigate exposure to this vulnerability.

VI. VENDOR RESPONSE

Hewlett-Packard has addressed this vulnerability in the HPSBMA02353
(SSRT080066) security bulletin. For more information, visit the
following URL.

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01511225

VII. CVE INFORMATION

The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CVE-2008-1667 to this issue. This is a candidate for inclusion in
the CVE list (http://cve.mitre.org/), which standardizes names for
security problems.

VIII. DISCLOSURE TIMELINE

04/03/2008  Initial vendor notification
05/08/2008  Initial vendor response
07/28/2008  Coordinated public disclosure

IX. CREDIT

The discoverer of this vulnerability wishes to remain anonymous.

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X. LEGAL NOTICES

Copyright © 2008 iDefense, Inc.

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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.