Rapid7 Vulnerability & Exploit Database

DNS Lookup Result Comparison

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DNS Lookup Result Comparison



This module can be used to determine differences in the cache entries between two DNS servers. This is primarily useful for detecting cache poisoning attacks, but can also be used to detect geo-location load balancing.


  • hdm <x@hdm.io>


Module Options

To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':

msf > use auxiliary/spoof/dns/compare_results
msf auxiliary(compare_results) > show actions
msf auxiliary(compare_results) > set ACTION < action-name >
msf auxiliary(compare_results) > show options
    ...show and set options...
msf auxiliary(compare_results) > run 

Time is precious, so I don’t want to do something manually that I can automate. Leveraging the Metasploit Framework when automating any task keeps us from having to re-create the wheel as we can use the existing libraries and focus our efforts where it matters.

– Jim O’Gorman | President, Offensive Security