Hi all, I have a problem which has been stumping me for a while. I need to be able to login to a remote machine, escalate privileges using su, and then run an arbitrary command as root on the remote machine. I'm using Net::OpenSSH and Expect to supply the root password, but I'm still not able to get it working. Here's the code I have so far:

  my $ssh = Net::OpenSSH->new($remote_host);
  my $command = 'remote privileged command';

  my $root_pw = 'IamNotTheRealPassword';
  my ($pty, $pid) = $ssh->open2pty({stderr_to_stdout => 1}, 'su', '-')
+ or die "Can't open PTY: $!\n";

  my $expect = Expect->init($pty);
  $expect->expect(10,
                  [qr/assword/ => sub { shift->send("$root_pw"); }]
                  ) or die "Timed out\n";

  $expect->raw_pty(1);


  $expect->spawn($command) or die "Can't execute command $command: $!\
+n";
  $expect->expect(2);
  my $out = $expect->before();
[download]

Obviously, I'm doing something wrong with Expect because its running the command on the local machine, not the remote one. Is there something obvious I'm missing? I've gone through both the Net::OpenSSH docs and the Expect docs but I can't seem to figure it out. Any help would be greatly appreciated!