Re: [v9.2] Add GUC sepgsql.client_label - Mailing list pgsql-hackers

From Robert Haas
Subject Re: [v9.2] Add GUC sepgsql.client_label
Date
Msg-id CA+TgmoYNFhOKCW55KHj1q9UujGXbeVdVXkVBr4R6UGs96Jd7kw@mail.gmail.com
Whole thread Raw
In response to Re: [v9.2] Add GUC sepgsql.client_label  (Kohei KaiGai <kaigai@kaigai.gr.jp>)
Responses Re: [v9.2] Add GUC sepgsql.client_label  (Kohei KaiGai <kaigai@kaigai.gr.jp>)
List pgsql-hackers
On Mon, Mar 12, 2012 at 10:58 AM, Kohei KaiGai <kaigai@kaigai.gr.jp> wrote:
> It is a practical reason. In case when httpd open the connection to PG and
> set a suitable security label according to the given credential prior to launch
> of user application, then keep this connection for upcoming request, it is
> worthwhile to reset security label of the client.

But wait a minute - how is that any good?  That allows the client to
pretty trivially circumvent the security restriction that we were
trying to impose by doing sepgsql_setcon() in the first place.  It
doesn't matter how convenient it is if it's flagrantly insecure.

Am I missing something here?

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company


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