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             AUSCERT External Security Bulletin Redistribution

                    ESB-2007.0380 -- [Win][UNIX/Linux]
        Symantec Storage Foundation Solution Suites: Veritas Volume
                       Replicator, Denial of Service
                                5 June 2007


        AusCERT Security Bulletin Summary

Product:              Symantec Veritas Volume Replicator for Windows 4.3MP1 and prior
                      Symantec Veritas Volume Replicator for Unix 5.0 and prior
Publisher:            Symantec
Operating System:     Windows
                      Linux variants
Impact:               Denial of Service
Access:               Remote/Unauthenticated
CVE Names:            CVE-2007-1593

Original Bulletin:    

- --------------------------BEGIN INCLUDED TEXT--------------------


June 1, 2007
Symantec Storage Foundation Solutions Suites: Veritas Volume Replicator,
Denial of Service in Veritas Administrative Service

Revision History

Risk Impact

Remote Access	Network access or authorized user interaction required
Local Access	No
Authentication Required	No
Exploit publicly available	No

A Denial of Service (DoS) vulnerability has been identified and resolved in
the Symantec Veritas Volume Replicator (VVR) option, specifically in the
administrative service. Symantec's VVR ships as a licensable option with
Symantec's Storage Foundation Solutions Suites. If the VVR option is installed,
successful implementation of a DoS attack could terminate the service. In
some circumstances, resource exhaustion as a result of the DoS could 
potentially lead to additional system degradation.

Product(s) Affected

Product         Version             Platform(s)    

Symantec        3.1                 Win2k 
VeritasVolume   4.1, 4.1RP1         Win2k, Win2003 32-bit  
Replicator for  4.2, 4.2RP1, 4.2RP2 Win2k, Win2003 32-bit 
Windows         4.3, 4.3MP1         Win2k, Win2003 32-bit, 64-bit 
   Solution(s)  http://support.veritas.com/docs/286807

Symantec        3.5                 HP-UX 
Veritas Volume  4.0                 AIX
Replicator for  4.1                 Solaris, Solaris Opteron, HP-UX, Linux
Unix            5.0                 Solaris, HP-UX, Linux, AIX
   Solution(s)  http://support.veritas.com/docs/286807

iDefense notified Symantec of a DoS vulnerability identified in the Symantec
VVR administrative service. The DoS was caused by failure to properly validate
incoming data passed to the VVR service. A specifically crafted packet passed
to the vulnerable service could result in the VVR administrative service
terminating unexpectedly. The VVR administration service will require a
restart. This type of attack could also potentially lead to degraded application
functions on the targeted system or to the overall system due to excessive
CPU resource consumption during memory allocation attempts prior to VVR
administrative service termination.

This DoS, if successfully exploited, would more likely be the result of an
internal attack by an authorized malicious user on the network since network
access would normally be required to reach the affected service port. Any
potentially successful attack by a non-authorized remote attacker would most
likely be a scenario of interactive user involvement by enticing a user to
run or allow malicious code to be run that could successfully impact a
vulnerable system.

Symantec Response
Symantec takes the security of our products and our customers very seriously.
Symantec engineers have verified and corrected these issues in all currently
supported vulnerable versions of Symantec's Veritas Volume Replicator.

Updates are available for all supported products. Symantec recommends customers
apply the latest product update available for their supported product versions
to enhance their security posture and protect against potential security
threats of this nature.

To determine if the VVR option is installed on a system

Symantec Veritas Storage Foundation Suite for Windows:

   1. from a command prompt, run the command "vxrvg.exe", as system or domain
   2. if the command is NOT found, the VVR option is not installed and the
      system is not vulnerable
   3. if the command IS found, the system is vulnerable and the appropriate
      solution should be applied

Symantec Veritas Storage Foundation Suite for *nix platforms

   1. run the command: /sbin/vxlictest -n "VERITAS Volume Manager" -f "VVR"
      as root
   2. if the license is NOT found, the VVR option is not installed and the
      system is not vulnerable
   3. if the license IS found, the system is vulnerable and the appropriate
      solution should be applied

Note: Should a customer determine at a later date to install the VVR option,
the appropriate updates must be applied.

Symantec knows of no exploitation of or adverse customer impact from this issue.

The location for patches listed above for affected products can be found in 
the following:  http://support.veritas.com/docs/286807

Best Practices
As part of normal best practices, Symantec strongly recommends:

    * Restrict access to administration or management systems to privileged users.
    * Restrict remote access, if required, to trusted/authorized systems only.
    * Run under the principle of least privilege where possible to limit the
      impact of exploit by threats.
    * Keep all operating systems and applications updated with the latest
      vendor patches.
    * Follow a multi-layered approach to security. Run both firewall and
      anti-malware applications, at a minimum, to provide multiple points of
      detection and protection to both inbound and outbound threats.
    * Deploy network and host-based intrusion detection systems to monitor
      network traffic for signs of anomalous or suspicious activity. This may
      aid in detection of attacks or malicious activity related to exploitation
      of latent vulnerabilities

The Common Vulnerabilities and Exposures (CVE) initiative has assigned CVE
Candidate CVE-2007-1593 to this issue.

This issue is a candidate for inclusion in the CVE list (http://cve.mitre.org),
which standardizes names for security problems.

Symantec would like to thank iDefense for reporting these issues and for
providing full coordination while Symantec resolved them.

Symantec takes the security and proper functionality of its products very
seriously. As founding members of the Organization for Internet Safety
(OISafety), Symantec follows the principles of responsible disclosure. Symantec
also subscribes to the vulnerability guidelines outlined by the National
Infrastructure Advisory Council (NIAC). Please contact secure@symantec.com
if you feel you have discovered a potential or actual security issue with a
Symantec product. A Symantec Product Security team member will contact you
regarding your submission.

Symantec has developed a Product Vulnerability Handling Process document
outlining the process we follow in addressing suspected vulnerabilities in
our products. We support responsible disclosure of all vulnerability information
in a timely manner to protect Symantec customers and the security of the
Internet as a result of vulnerability. This document is available from the
location provided below.

Symantec strongly recommends using encrypted email for reporting vulnerability
information to secure@symantec.com. The Symantec Product Security PGP key can
be obtained from the location provided below.
Symantec Vulnerability Response Policy 
Symantec Product Vulnerability Management PGP Key 

Copyright (c) 2007 by Symantec Corp.
Permission to redistribute this alert electronically is granted as long as
it is not edited in any way unless authorized by Symantec Security Response.
Reprinting the whole or part of this alert in any medium other than
electronically requires permission from secure@symantec.com.

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.

Symantec, Symantec products, Symantec Security Response, and secure@symantec.com
are registered trademarks of Symantec Corp. and/or affiliated companies in
the United States and other countries. All other registered and unregistered
trademarks represented in this document are the sole property of their
respective companies/owners.

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