Re: BUG #1567: can't hide password with pg_autovacuum - Mailing list pgsql-bugs

From Bruce Momjian
Subject Re: BUG #1567: can't hide password with pg_autovacuum
Date
Msg-id 200503282240.j2SMe8k24836@candle.pha.pa.us
Whole thread Raw
In response to BUG #1567: can't hide password with pg_autovacuum  ("Olivier Thauvin" <nanardon@nanardon.homelinux.org>)
Responses Re: BUG #1567: can't hide password with pg_autovacuum  (Olivier Thauvin <olivier.thauvin@aerov.jussieu.fr>)
List pgsql-bugs
The typical way to do this is to use .pgpass in the user's home
directory.  Does that help?

---------------------------------------------------------------------------

Olivier Thauvin wrote:
>
> The following bug has been logged online:
>
> Bug reference:      1567
> Logged by:          Olivier Thauvin
> Email address:      nanardon@nanardon.homelinux.org
> PostgreSQL version: 8.0.1
> Operating system:   Linux (Mandrake cooker)
> Description:        can't hide password with pg_autovacuum
> Details:
>
> I found an security with pg_autovacuum :(
> After looking the README and --help, it seems there is no way to start it
> with a configuration file.
>
> This is not a problem except when the database is password protected, so you
> have to use -P option to get it started (no prompt excpet I missed
> something).
>
> The potential issue come from ps, the password is show in clear:
>
> nanardon 28664  0.4  0.0  3644 1384 ?        Ss   04:05   0:00 pg_autovacuum
> -D -s rpm2sql -PXXXXXX
>
> XXXXXX is my password in clear (hidden here of course).
> As you can see, there is enought information here for someone having an
> account on the host to connect to DB with admin privileges on the DB (not as
> postgres user of course, but only the owner of the db can vacuum).
>
> Solution:
> - change the command line after start like some ftp client does
> - having the possiblility to read password from a file
> - taking password from envirronment variable (AUTOVACUUM_PASS=pass
> pg_autovacuum...)
>
> If I have any time, I will try to provide a patch, but my knowledge in C are
> too poor to ensure quality :(
>
> ---------------------------(end of broadcast)---------------------------
> TIP 9: the planner will ignore your desire to choose an index scan if your
>       joining column's datatypes do not match
>

--
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  pgman@candle.pha.pa.us               |  (610) 359-1001
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