Re: access to DB and security

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----- Original Message ----- From: "Alain Roger" <raf.news@xxxxxxxxx>


Hi,

My web hoster gave me a login and password with which i can connect to DB,
perform some actions as DB owner / superuser just for my DB.
If i use this login + password to connect and perform some actions from my
web pages, everybody can hack my DB and do what they want.

My web hoster will not give me some particular role/user with which user can
only execute some stored procedure but can not administrate my DB.

therefore, how can i make my web pages users connect to DB (with my
administrator login and password) and run some stored procedure without
risking to see my DB hacked ?

thanks a lot,

Alain


That is quite a normal setup and unless you have your own server, that's what you normally get on a shared host so we all live with that.

Your database access information should be in an include file which all web pages should be able to access internally, but which is not accessible from elsewhere. Usually, you would have a ~/www or ~/htdocs directory which is the public root of the web site and will be seen from elsewhere. The include file with the database access data should be in some ~/somethingelse which is not accessible to the public. Furthermore, if this file has a .php extension, its contents won't be visible (unless it does echo something), even if it is within the public directory. Finally, in that include file I usually return an opened global db connection and do not set variables with this DB access information, just produce the opened connection. That's as far as preserving the DB connection data.

As for preventing abuse of the opened connection, that would be through "SQL injection" and under that subject you will find lots of literature just googling around and plenty of messages on this very list.

Satyam




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