From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | Neil Conway <neilc(at)samurai(dot)com> |
Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Rod Taylor <pg(at)rbt(dot)ca>, PostgreSQL-patches <pgsql-patches(at)postgresql(dot)org> |
Subject: | Re: [HACKERS] Possible make_oidjoins_check Security Issue |
Date: | 2004-11-03 23:28:24 |
Message-ID: | 200411032328.iA3NSOh12004@candle.pha.pa.us |
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Lists: | pgsql-hackers pgsql-patches |
Neil Conway wrote:
> On Thu, 2004-11-04 at 10:07, Bruce Momjian wrote:
> > My method is secure, and I think we do have to handle this in a way that
> > addresses the security concerns.
>
> I think Tom's fix adequately addresses the security concerns. Exactly
> what is wrong with writing to the current working directory?
Because it could be run from a directory where others have write
permission.
> > It is easy to say no one would run
> > this under normal use but that isn't really a safe answer for the
> > security folks, I think.
>
> This is a non-sequitor -- I don't think Tom or anyone else has argued
> this.
I remember hearing that from someone. I thought it was Tom.
Bottom line is that the only secure way I have ever heard of for
creating temp files is to create a 077 directory in /tmp and write in
there.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073
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