Re: vulnerability of COPY command

i have mixed feelings about parameterised statements.

On the one hand a parameterised statement would be more difficult for a Wireshark criminal to insert their own c**p into a database because they would have to know the schema a-priori for example they would have to know the names of the database, table and the datatypes of these 2 statements
Insert DateField1 INTO DateTable VALUES(1) would gack as 1 is not a valid date

Insert NumericField1 INTO NumericTable VALUES('A') would gack as well as A is not a valid number

But thats only one line of defence..Struts..JSF and other Frameworks have field validators so a good design would involve 2 tiered defence

1)The web folks would put some kind of JS function to disallow client know from enetering a invalid date

2)The back-end folks (me) would validate Database params in the servlet or the DTO as it makes its way to the VO and before any of the offending values get into the database

The net effect is wireshark criminals are succeeding in making everyone's lives a living hell..the least we can do is take their pitchfork away!

Martin Gainty
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> Date: Sat, 29 May 2010 22:41:04 -0700
> From: gearond(at)sbcglobal(dot)net
> Subject: [GENERAL] vulnerability of COPY command
> To: pgsql-general(at)postgresql(dot)org
>
> I'm trying to build a way to bulk load from a script to a Dbase, postgres.
>
> Using single, parameterized statements is a pretty good defense against SQL injection, so I use Symfony as the main user input.
>
> But for this bulk loading, it's tooooooo slow.
>
> If I build a text based, COPY file for bulk purposes, to be input via the command line, is Postgres vulnerable to SQL injection from that?
>
>
> Dennis Gearon
>
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