From: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> |
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To: | Gilles Darold <gilles(dot)darold(at)dalibo(dot)com> |
Cc: | PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: proposal: psql \setfileref |
Date: | 2016-10-04 15:29:46 |
Message-ID: | CAFj8pRAkUaMDWFk8XN+CionHvEd1TRgLGYWs73GapnsYhecpGg@mail.gmail.com |
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Lists: | pgsql-hackers |
2016-10-04 9:18 GMT+02:00 Gilles Darold <gilles(dot)darold(at)dalibo(dot)com>:
> Le 03/10/2016 à 23:23, Gilles Darold a écrit :
> > Le 03/10/2016 à 23:03, Robert Haas a écrit :
> >> On Mon, Oct 3, 2016 at 3:54 PM, Gilles Darold <gilles(at)darold(dot)net>
> wrote:
> >>> 4) An other problem is that like this this patch will allow anyone to
> upload into a
> >>> column the content of any system file that can be read by postgres
> system user
> >>> and then allow non system user to read its content.
> >> I thought this was a client-side feature, so that it would let a
> >> client upload any file that the client can read, but not things that
> >> can only be read by the postgres system user.
> >>
> > Yes that's right, sorry for the noise, forget this fourth report.
> >
>
> After some more though there is still a security issue here. For a
> PostgreSQL user who also have login acces to the server, it is possible
> to read any file that the postgres system user can read, especially a
> .pgpass or a recovery.conf containing password.
>
This patch doesn't introduce any new server side functionality, so if there
is some vulnerability, then it is exists now too.
Regards
Pavel
>
>
> --
> Gilles Darold
> Consultant PostgreSQL
> http://dalibo.com - http://dalibo.org
>
>
>
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