From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | Bruno Wolff III <bruno(at)wolff(dot)to> |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: [GENERAL] What user to defaults execute as? |
Date: | 2002-11-02 02:35:40 |
Message-ID: | 200211020235.gA22ZeW03176@candle.pha.pa.us |
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Thread: | |
Lists: | pgsql-general pgsql-hackers |
I think we open up more security problems by having the inserter doing
things as the owner of the table.
---------------------------------------------------------------------------
Bruno Wolff III wrote:
> On Wed, Oct 30, 2002 at 14:03:21 -0600,
> >
> > While I am not sure about triggers, it certainly is possible to get
> > a similar effect be having the referenced function run with the security
> > of the definer.
>
> I read some more on triggers and found that according to the documentation,
> they appear to run as the user doing the insert, update or delete and
> are specifically noted to be dangerous. And while using the execute as
> definer can allow a trigger writer to provide limited access to the invoker,
> it doesn't protect the invoker from the trigger writer. It seems unlikely
> that triggers should be doing things to objects that the trigger owner
> doesn't have rights to. And this might be another place where using the
> access of the owner would be better than using that of the invoker.
>
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--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
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