Currently if you run the following command and the opensslCipherConfig parameter doesn't contain a custom string of OpenSSL ciphers, the result is an empty string:

db.adminCommand( { getParameter : 1, "opensslCipherConfig" : 1 } )

{ "opensslCipherConfig" : "", "ok" : 1 }

It would be nice if MongoDB returns the currently used ciphers string for example by calling out SSL_CTX_get_ciphers()

This is only valid for platforms using the OpenSSL library.