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AUSCERT External Security Bulletin Redistribution
ESB-2008.0181 -- [Win]
Symantec Veritas Storage Foundation Scheduler Service DoS Vulnerability
21 February 2008
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AusCERT Security Bulletin Summary
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Product: Veritas Storage Foundation for Windows version 5.0
Publisher: iDEFENSE
Operating System: Windows
Impact: Denial of Service
Access: Remote/Unauthenticated
CVE Names: CVE-2007-4516
Original Bulletin: http://labs.idefense.com/intelligence/vulnerabilities/
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iDefense Security Advisory 02.20.08
http://labs.idefense.com/intelligence/vulnerabilities/
Feb 20, 2008
I. BACKGROUND
The Veritas Storage Foundation is based on the Veritas File System and
Veritas Volume Manager products. It allows virtualization of storage
over a variety of platforms. It contains a remote administration
application to configure and monitor the elements of the storage
network. More information can be found at the following URL.
http://www.symantec.com/enterprise/products/overview.jsp?pcid=1020&pvid=203_1
II. DESCRIPTION
Remote exploitation of a denial of service vulnerability in Symantec
Corp.'s Veritas Storage Foundation scheduler service could allow an
unauthenticated attacker to crash the service.
When the Veritas Scheduler service (VxSchedService.exe) encounters
certain packets, an invalid memory access occurs causing the service to
crash.
III. ANALYSIS
Exploitation of this vulnerability allows remote attackers to cause the
affected service to terminate. In order to exploit this vulnerability,
an attacker must be able to establish a TCP session with the service on
port 4888. No authentication is required to reach the vulnerable code.
IV. DETECTION
iDefense Labs have confirmed Veritas Storage Foundation for Windows
version 5.0 (with VxSchedService.exe version 5.0.9.298) is vulnerable.
It is suspected that all previous versions are vulnerable.
V. WORKAROUND
Applying filtering to the affected port, such that only hosts which need
to use this service can access it, will help mitigate exposure to the
vulnerability.
VI. VENDOR RESPONSE
Symantec has addressed this vulnerability by releasing an update for
Veritas Storage Foundation. More information is available in Symantec's
advisory at the following URL.
http://www.symantec.com/avcenter/security/Content/2008.02.20.html
VII. CVE INFORMATION
The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CVE-2007-4516 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
08/15/2007 Initial vendor notification
08/15/2007 Initial vendor response
02/20/2008 Coordinated public disclosure
IX. CREDIT
The discoverer of this vulnerability wishes to remain anonymous.
Get paid for vulnerability research
http://labs.idefense.com/methodology/vulnerability/vcp.php
Free tools, research and upcoming events
http://labs.idefense.com/
X. LEGAL NOTICES
Copyright © 2008 iDefense, Inc.
Permission is granted for the redistribution of this alert
electronically. It may not be edited in any way without the express
written consent of iDefense. If you wish to reprint the whole or any
part of this alert in any other medium other than electronically,
please e-mail customerservice@idefense.com for permission.
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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