Re: Connect to db denied for superuser inherited by group

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Stephen Frost <sfrost(at)snowman(dot)net>
Cc: Michael(dot)Dietrich(at)swisscom(dot)com, pgsql-admin(at)lists(dot)postgresql(dot)org
Subject: Re: Connect to db denied for superuser inherited by group
Date: 2018-03-16 14:52:44
Message-ID: 19470.1521211964@sss.pgh.pa.us
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Stephen Frost <sfrost(at)snowman(dot)net> writes:
> * Michael(dot)Dietrich(at)swisscom(dot)com (Michael(dot)Dietrich(at)swisscom(dot)com) wrote:
>> 2) User without superuser privileges uses a role with superuser rights (usage confirmed with SHOW current_role.)

> Please provide more details about what this step #2 actually means.

If you mean that you did "GRANT superuserrole TO nonsuperuser", this
does not make "nonsuperuser" into a superuser; it merely allows
"nonsuperuser" to use whatever ordinary privileges might've been
granted to "superuserrole". If you did that with the bootstrap
superuser, this would include ownership rights on all built-in
objects, so it'd still be pretty darn dangerous; but it does not
give the ability to ignore privileges for other objects.

regards, tom lane

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