Check Point Advisories

Symantec Gateway Products DNS Cache Poisoning - High Confidence (CVE-2005-0817)

Check Point Reference: CPAI-2013-1343
Date Published: 7 Mar 2013
Severity: High
Last Updated: Thursday 28 March, 2024
Source: CVE-2005-0817
Protection Provided by:

Security Gateway
R75

Who is Vulnerable? ? Symantec Gateway Security 5300 Series v1.0
? Symantec Gateway Security 5400 Series v2.x
? Symantec Norton Enterprise Firewall v7.0.x
? Symantec Norton Enterprise Firewall v8.0
? Symantec VelociRaptor 1100, 1200, and 1300 v1.5
Vulnerability Description The Symantec Firewall has a DNS proxy service, DNSD.exe, that acts as a proxy and cache server for the DNS requests generated by internal systems.
Vulnerability DetailsWhen the DNS proxy receives a DNS response from a DNS server, the information in the Authoritative and Additional Record will be saved in the DNS cache. There exists a vulnerability in the way the DNS proxy component of Symantec Gateway products processes and caches DNS responses. When the vulnerable component is configured to function as a DNS caching server or as a primary DNS server, it is susceptible to DNS cache poisoning under specific conditions. An attacker may exploit this vulnerability to do site spoofing, Man-in-the-Middle, or denial of service attacks by manipulating the DNS cache data on the target system. Upon receiving a specially crafted DNS response packet, the vulnerable Symantec Firewall DNS proxy service will cache invalid domain information in its cache without any verification, poisoning the cache. When a DNS request for the hijacked domain is made, information from the poisoned cache will be used to answer the request. Therefore, any client who utilizes this DNS Proxy service will be affected. This could be used to carry other types of attacks, such as man-in-the-middle attacks, or spoofing attacks, or information gathering attacks, etc.

Protection Overview

This protection will detect and block attempts to exploit this vulnerability.

In order for the protection to be activated, update your product to the latest update. For information on how to update , go to SBP-2006-05, Protection tab and select the version of your choice.

Security Gateway R75 / R71 / R70

  1. In the IPS tab, click Protections and find the Symantec Gateway Products DNS Cache Poisoning - High Confidence protection using the Search tool and Edit the protection's settings.
  2. Install policy on all modules.

SmartView Tracker will log the following entries:
Attack Name: DNS Enforcement Violation
Attack Information: Symantec Gateway Products DNS Cache Poisoning - High Confidence

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