Solution to the pg_user passwd problem !?? (c)

Hi all,

What about:
grant select on pg_user to public;
create rule pg_user_hide_pw as on
select to pg_user.passwd
do instead select '********' as passwd;

Then if I do:
select * from pg_user;
usename |usesysid|usecreatedb|usetrace|usesuper|usecatupd|passwd |valuntil
--------+--------+-----------+--------+--------+---------+--------+---------
-------------------
postgres| 6|t |t |t |t |********|Sat Jan
31 07:00:00 2037 NFT
zeus | 60|t |t |f |t |********|
(2 rows)

Also the \d works for all users !

Only "disadvantage" is that noone can read passwd without first dropping the
rule pg_user_hide_pw,
I consider this a feature though ;-)

Since the userauthentication bypasses the rewrite mechanism the logins,
alter user .. and others do work !

Can all of you try to crack this ?

(c) Andreas Zeugswetter

Copyright by Andreas Zeugswetter 1998 contributed to the postgresql project
;-)
Wow, I am actually proud of this (so far, and hope it holds what I think it
does)