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CFQUERYPARAM and order by

Posted on 2009-05-18
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Last Modified: 2013-12-24
Concerning protection against injection I'm a little confused when I should protect the ORDER by clause. Does the query below need to be changed to protect the order by part? If so what to?
...

SELECT     container, language, active, lastedit, title, contentID

FROM       contentItems

WHERE     (active= <CFQUERYPARAM Value=1>)

ORDER BY container, language

</cfquery>

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Question by:Shawn
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_agx_ earned 500 total points
ID: 24417308
No.  

(Though it is not the only reason to use it) cfqueryparam is used when working with user supplied values (FORM or URL variables).  Since there are no user supplied values in your ORDER BY clause, you do not need to modify it.  

If you were using a user supplied value in the ORDER BY, like for dynamic sorting, you _would_ need to protect it.  BUT ... cfqueryparam is used for "values", not table or column names.  So you would have to find some other way to protect the statement below:

--- this statement is NOT safe
SELECT     container, language, active, lastedit, title, contentID
FROM       contentItems
WHERE     (active= <CFQUERYPARAM Value=1>)
ORDER BY #url.sortByColumnName1#, #url.sortByColumnName2#

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by:_agx_
ID: 24417320
> (active= <CFQUERYPARAM Value=1>)

    I am assuming that is just psuedo-code.  Otherwise, the value should be quoted and the
    correct  "cfsqltype" included  (integer, bit, etc..)

    WHERE  active =  <CFQUERYPARAM Value="1" cfsqltype="cf_sql_integer">
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by:Shawn
ID: 24417366
thanks for the clarification. It's taken a little while to wrap it all around my head. Moving up from Access to SQL server is great but my head is still spinninig a little :-)

thanks for the pointer. I updated all vulnerable queries with a tool that didn't specify type. The type is boolean so I suppose this should be it.
WHERE     (active= <CFQUERYPARAM cfsqltype="cf_sql_bit" Value="1">)
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Expert Comment

by:_agx_
ID: 24417622
> Moving up from Access to SQL server is great but my head is still spinninig a little :-)

Yes, but you will love it as soon as you get your bearings ;-)
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Author Comment

by:Shawn
ID: 24417632
I'm already starting to...so many possibilities.
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