Here's a cgi script for changing passwords.

[eirvine]

Hi,

This set of scripts is for presenting
a web interface for changing the unix
passwords and smbpasswords via a web
interface.

You will need to print out all of the
scripts and customize to
suit your system.

These scripts are no doubt full of
security holes and, ahh, 
"subceptible to improvement". Any
perl-expect exprerts out
there?
 
You will need expect installed.

It works for me on my FreeBSD 3.5
system.
 
Eddie (who is a school teacher, not
a computer scientist - be warned!)