From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
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To: | Florian Weimer <Florian(dot)Weimer(at)RUS(dot)Uni-Stuttgart(dot)DE> |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: Escaping strings for inclusion into SQL queries |
Date: | 2001-09-04 17:30:54 |
Message-ID: | 200109041730.f84HUsI19449@candle.pha.pa.us |
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Thread: | |
Lists: | pgsql-hackers |
Patch removed at the request of the author. Author will resubmit.
> It has come to our attention that many applications which use libpq
> are vulnerable to code insertion attacks in strings and identifiers
> passed to these applications. We have collected some evidence which
> suggests that this is related to the fact that libpq does not provide
> a function to escape strings and identifiers properly. (Both the
> Oracle and MySQL client libraries include such a function, and the
> vast majority of applications we examined are not vulnerable to code
> insertion attacks because they use this function.)
>
> We therefore suggest that a string escaping function is included in a
> future version of PostgreSQL and libpq. A sample implementation is
> provided below, along with documentation.
>
> --
> Florian Weimer Florian(dot)Weimer(at)RUS(dot)Uni-Stuttgart(dot)DE
> University of Stuttgart http://cert.uni-stuttgart.de/
> RUS-CERT +49-711-685-5973/fax +49-711-685-5898
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--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026
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