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.
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.
Symantec released a hotfix to address this issue that provides additional authentication and validation checks for each response directed to DNSd.
Symantec recommends customers apply the appropriate hotfix for their affected product versions immediately to protect against this type of threat. Product specific hotfixes are available via the Symantec Enterprise Support site http://www.symantec.com/techsupp.
Symantec is not aware of any active attempts against or customer impact from this issue.
A CVE Candidate name has been requested from the Common Vulnerabilities and Exposures (CVE) initiative for this issue. This advisory will be revised accordingly upon receipt of the CVE Candidate name.
This is a candidate for inclusion in the CVE list (http://cve.mitre.org), which standardizes names for security problems.
Symantec takes the security and proper functionality of our products very seriously. As founding members of the Organization for Internet Safety (OISafety), Symantec supports and follows the principles of responsible disclosure. Symantec also subscribes to the vulnerability disclosure guidelines outlined by the National Infrastructure Advisory Council (NIAC).
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Symantec has developed a Product Vulnerability Response document outlining the process we follow in addressing suspected vulnerabilities in our products. This document is available below.
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Last modified on: Monday, 25-Oct-04 15:30:02