From: | "Willy-Bas Loos" <willybas(at)gmail(dot)com> |
---|---|
To: | "Joris Dobbelsteen" <Joris(at)familiedobbelsteen(dot)nl>, "Richard Huxton" <dev(at)archonet(dot)com> |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: Unauthorized users can see db schema and read functions |
Date: | 2007-01-30 11:26:51 |
Message-ID: | 1dd6057e0701300326v9a79345p7f6ff1bda721c47b@mail.gmail.com |
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Thread: | |
Lists: | pgsql-general |
> In 8.2 the "CONNECT" priviledge was introducted on the database
Wow it works! :D
>However, you can use pg_hba.conf to restrict access to a database entirely.
That works too!
You can even allow all databases for all, and reject some databases to some,
as long as the "reject" lines are above the "all" "all" "md5" line in
pg_haba.conf
Great, thanks for the help.
On 1/30/07, Joris Dobbelsteen <Joris(at)familiedobbelsteen(dot)nl> wrote:
>
>
>
> ------------------------------
> *From:* pgsql-general-owner(at)postgresql(dot)org [mailto:
> pgsql-general-owner(at)postgresql(dot)org] *On Behalf Of *Willy-Bas Loos
> *Sent:* dinsdag 30 januari 2007 9:41
> *To:* pgsql-general(at)postgresql(dot)org
> *Subject:* [GENERAL] Unauthorized users can see db schema and read
> functions
>
> Hi,
>
> I've noticed that any user who can logon to a db cluster can read the
> schema of all databases in it, including the code of all plpgsql functions.
> Even in schema's he/she doesn't have access to. For tables it just says
> 'access denied for schema bla', after which the structure is still shown to
> the user. For functions, there is no warning at all, you can just read
> (copy, paste) away.
> I use pgAdmin3 1.6.2 as a front-end for both linux and windows servers,
> but I don't think restricting schema information should be a front-end
> responsibility.
>
> o Why is schema information not restricted?
>
>
> This is a limitation of <= 8.1.x.
> In 8.2 the "CONNECT" priviledge was introducted on the database (still
> wondering why it was not done earlier).
>
> Probably something similar should be done on the schema's too ;)
>
>
> o Is there any way to prevent this, other than starting another cluster
> for this user's database
>
>
>
> - Upgrade to 8.2...
> - (Not sure and seems to contradict with your statement) you can
> move everything into a different schema, since public will always be
> readable, and others can be restricted
>
> People who know it for sure should correct me, of course.
> I found the behaviour strange too...
>
> - Joris
>
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