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UNIRAS Brief - 319/04 - Symantec Gateway Security Products DNS Cache Poisoning Vulnerability


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   UNIRAS (UK Govt CERT) Briefing Notice - 319/04 dated 23.06.04  Time: 09:25  
  UNIRAS is part of NISCC (National Infrastructure Security Co-ordination Centre)
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  UNIRAS material is also available from its website at www.uniras.gov.uk and
         Information about NISCC is available from www.niscc.gov.uk
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Symantec Gateway Security Products DNS Cache Poisoning Vulnerability


June 21, 2004 
Symantec Gateway Security Products DNS Cache Poisoning Vulnerability 
Revision History

Risk Impact

Symantec resolved a DNS cache poisoning vulnerability that was reported to impact 
the Symantec Gateway Security products noted below. Under specific conditions and 
configurations, incorrect or false DNS records could be inserted into the DNS cache 
tables. It would then be possible that legitimate DNS requests would return 
incorrect responses. 

Affected Components
Symantec Gateway Security 5400 Series, v2.0
Symantec Gateway Security 5300 Series, v1.0
Symantec Enterprise Firewall, v7.0.x (Windows and Solaris)
Symantec Enterprise Firewall v8.0 (Windows and Solaris)
Symantec VelociRaptor, Model 1100/1200/1300
Symantec VelociRaptor, Model 500/700/1000 

Symantec Security Gateway products include a DNS proxy, DNSd, which can be configured
to function as a DNS server. Under specific conditions, DNSd may be susceptible to DNS
cache poisoning. DNS cache poisoning occurs when incorrect or false DNS records are 
inserted into a DNS server's cache tables. The results of inadvertent or intentional
DNS cache poisoning can be unintentional loss of service or potentially malicious activity. 

For further information go to:


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For additional information or assistance, please contact the HELP Desk by 
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Tel: +44 (0) 20 7821 1330 and follow the prompts

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UNIRAS wishes to acknowledge the contributions of Symantec for the information 
contained in this Briefing. 
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This Briefing contains the information released by the original author. Some 
of the information may have changed since it was released. If the vulnerability 
affects you, it may be prudent to retrieve the advisory from the canonical site 
to ensure that you receive the most current information concerning that problem.

Reference to any specific commercial product, process, or service by trade 
name, trademark manufacturer, or otherwise, does not constitute or imply 
its endorsement, recommendation, or favouring by UNIRAS or NISCC.  The views 
and opinions of authors expressed within this notice shall not be used for 
advertising or product endorsement purposes.

Neither UNIRAS or NISCC shall also accept responsibility for any errors 
or omissions contained within this briefing notice. In particular, they shall 
not be liable for any loss or damage whatsoever, arising from or in connection 
with the usage of information contained within this notice.

UNIRAS is a member of the Forum of Incident Response and Security Teams (FIRST) 
and has contacts with other international Incident Response Teams (IRTs) in 
order to foster cooperation and coordination in incident prevention, to prompt 
rapid reaction to incidents, and to promote information sharing amongst its 
members and the community at large. 
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<End of UNIRAS Briefing>

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