Security question

[Alejandro Daniel Verri <averri @ delec . fi . uba . ar>]

Hi

I have a problem with my system administrator.
We have the wrapper like this:
-rwsrwxr-x root Majordom    wrapper*

and The administrator don't want this, because, say, it's not secure for the
system. It's true?
Can a hacker, copy a shell to the majordomo directory an execute like root?
I don't know answer him, because, i'm not a unix guru.
Is there any response for him?

any help will be appreciated
Thanks in advance and sorry for my english