kitchen verify hangs on centOS, but not Debian
I also had this problem show up.  I think it's related to SSH.  I was writing a custom sshd_config.  Vagrant login's were slow after the first converge and verify was taking forever.  Removing the sshd_config stuff from my cookbook fixed the verify and slow logins.

Maybe it's not very helpful, but it's a place to start looking, anyway.  Short term, I hacked it together:

unless ENV['TEST_KITCHEN']
  cookbook_file '/etc/ssh/sshd_config' do
    source 'sshd_config'
    mode '0644'
    notifies :restart, 'service[sshd]', :delayed
  end
end


Jye