Okay what about this, for example column name ITEMOID has in DB maxlenght 15
and it is numeric.

Integer is -2,147,483,648 and 2,147,483,647 = 10 the point is 10 or 15
doesnt matter.

I will specify for ITEMOID in DB maxl = 15

Example QUERY is

SELECT location FROM item WHERE url.user_id = #url.user_id#

URL gonna look like this example:
http://mydomain.com/index.cfm?user_id=125456

Now imagine the Hacker Code (Declare etc etc) will add to the end:

http://mydomain.com/index.cfm?user_id=125456;DECLARE........

How can it be processed when  USER_ID in database is specified for LENGHT 15
and USER_ID with Hacker code has lenght like 100?

I guess u gonna gonna say that's why u have to use :

SELECT location FROM item WHERE url.user_id = <cfqueryparam
value="#url.user_id#" cfsqltype="CF_SQL_INTEGER">

to validate it.

I undestand that, but why it is not validated already when in DB it is
specified lenght 15 and using this query:

SELECT location FROM item WHERE url.user_id = #url.user_id# it should work
and I have to use another validation in code using

cfqueryparam?:

SELECT location FROM item WHERE url.user_id = <cfqueryparam
value="#url.user_id#" cfsqltype="CF_SQL_INTEGER">

Thanks  RAdek


On Thu, Jul 24, 2008 at 2:21 PM, Adrian Lynch <[EMAIL PROTECTED]>
wrote:

> Whatever the length of the column in your DB.
>
> Adrian
>
> -----Original Message-----
> From: Radek Valachovic [mailto:[EMAIL PROTECTED]
> Sent: 24 July 2008 19:19
> To: CF-Talk
> Subject: Re: (ot) URL Hack Attempt Leaves Me Scractching My Head...
>
>
> What would you suggest for this kind of thing:
>
> Select USERID
> from users
> where email = '#trim(arguments.email)#' and password =
> '#trim(arguments.password)#'
>
>
> Something like this?
>
> Select USERID
> from users
> where email = <cfqueryparam value="#trim(arguments.email)#"
> cfsqltype="CF_SQL_VARCHAR" maxlength="?"> and password = <cfqueryparam
> value="#trim(arguments.password)#" cfsqltype="CF_SQL_VARCHAR"
> maxlength="?">
>
> I put Question marks to MAXLENGHT still thinking if I should specify it for
> more security (but guessing lenght of emails someone can be rejected) or
> can
> it be without MAXLENGHT?
>
> Radek
>
>
> 

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~|
Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to 
date
Get the Free Trial
http://ad.doubleclick.net/clk;203748912;27390454;j

Archive: 
http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:309661
Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm
Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4

Reply via email to