Noted by @actuated, auxiliary/scanner/ipmi/ipmi_dumphashes was displaying an error when run against an IPMI endpoint that had a common hash. This was due to the services lookup in the database not extracting the first element of the results array.
```
[-] Auxiliary failed: NoMethodError undefined method `id' for #<Array:0x000055615614b970>
[-] Call stack:
[-] /home/bcook/projects/metasploit-framework/lib/metasploit/framework/data_service/proxy/credential_data_proxy.rb:27:in `block (2 levels) in create_cracked_credential'
[-] /home/bcook/.rvm/gems/ruby-2.6.1@metasploit-framework/gems/activerecord-4.2.11/lib/active_record/relation/delegation.rb:46:in `each'
[-] /home/bcook/.rvm/gems/ruby-2.6.1@metasploit-framework/gems/activerecord-4.2.11/lib/active_record/relation/delegation.rb:46:in `each'
[-] /home/bcook/projects/metasploit-framework/lib/metasploit/framework/data_service/proxy/credential_data_proxy.rb:25:in `block in create_cracked_credential'
[-] /home/bcook/projects/metasploit-framework/lib/metasploit/framework/data_service/proxy/core.rb:166:in `data_service_operation'
[-] /home/bcook/projects/metasploit-framework/lib/metasploit/framework/data_service/proxy/credential_data_proxy.rb:15:in `create_cracked_credential'
[-] /home/bcook/projects/metasploit-framework/lib/msf/core/auxiliary/report.rb:26:in `create_cracked_credential'
[-] /home/bcook/projects/metasploit-framework/modules/auxiliary/scanner/ipmi/ipmi_dumphashes.rb:317:in `report_cracked_cred'
[-] /home/bcook/projects/metasploit-framework/modules/auxiliary/scanner/ipmi/ipmi_dumphashes.rb:244:in `block (2 levels) in run_host'
[-] /home/bcook/projects/metasploit-framework/modules/auxiliary/scanner/ipmi/ipmi_dumphashes.rb:237:in `each'
[-] /home/bcook/projects/metasploit-framework/modules/auxiliary/scanner/ipmi/ipmi_dumphashes.rb:237:in `block in run_host'
[-] /home/bcook/projects/metasploit-framework/modules/auxiliary/scanner/ipmi/ipmi_dumphashes.rb💯in `each'
[-] /home/bcook/projects/metasploit-framework/modules/auxiliary/scanner/ipmi/ipmi_dumphashes.rb💯in `run_host'
[-] /home/bcook/projects/metasploit-framework/lib/msf/core/auxiliary/scanner.rb:111:in `block (2 levels) in run'
[-] /home/bcook/projects/metasploit-framework/lib/msf/core/thread_manager.rb:106:in `block in spawn'
[*] Auxiliary module execution completed
```
With Metasploit 5, RHOST and RHOSTS are aliases, so no need to
deregister one or the other, as they are the same option. Deregistering
one deregisters both.
Brent Cook
Patrick Webster
Aaron Soto
Matthew Kienow
Metasploit
William Vu
Erin Bleiweiss
Wei Chen