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. _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/