Just do this... its so much simpler than messing around with configs... :)
@Jorge The above is NOT working if your default provider Requires Question And Answer.
I ran into a problem with the simple solution. If the new password errors out because it is too short, what appears to happen is the new password does not get updated in the database. And the bad part........ the old password get updated with a new auto generate one. Have anyone found a work around?