SQL Server :: Prevent Injection When Using Values From A ListBox In The Query?
Sep 10, 2010
I'm using a List Box to get multiple values that will be used in a query.I can loop over the List Box and create the string.i.e. 'blue','red','purple'The string is used in the query: SELECT * FROM TABLE1 WHERE COLOR IN('blue','red','purple'). Is there a way to parametrize multiple values? @COLOR='blue','red','purple'What will be the best practice to prevent SQL injections in this scenario?
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Similar Messages:
Jun 1, 2010
I've been reading up on SQL Injection and want to go back and implement some measures to prevent these kinds of potential attacks.For example, on our company intranet, we have an address book feature and a search function so the user is able to look a company or a person up from the database/The user will enter their query into a TextBox control and click the Submit button, calling the following function:addybookDS1.SelectCommand = "SELECT * FROM [addressbook] WHERE COMPANY LIKE '%" + search1 + "%' OR CONTACT LIKE '%" + search1 + "%' OR LASTNAME LIKE '%" + search1 + "%' OR EMAIL LIKE '%" + search1 + "%'"search1 is the TextBox controlI had previously implemented this measure:search1 = Replace(search1, "'", "''")But I want to know if there is more I can do here and how I can go about doing it.
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Dec 29, 2010
I want to use multiple selected values from my list box to my sql query as how can i do this
i fill my listbox with following code to use selected multiple values in my sql delete query for deleting selected records
Dim connect, strsql As String
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Apr 14, 2010
prevent my data from SQL injection. I have replaced ' with '' (single quote with 2 quote) while doing any operation on sql server. tell me what all i need to do , to prevent my application from SQL injection. my application is in asp.net 2.0 i will use parameterized queries but what about my old projects.. i mean what about where i have written a string query and sending it to sql server as a commandtext. can any one insert sql injection even i have replaced ' with ''?
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May 31, 2010
i need all the details to How to prevent by sql injection by using stored procedure .
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Jan 11, 2011
I have a textbox for City field and a drop down list box for office location which has to be filled up based on the City value.
How to populate the values of drop down list box from an xml file keeping the above consideration.
I am doing this in a asp.net user control and C# code behind
In future i need not change the code every time. Its only the xml file i change and the corresponding city related office locations get listed in the drop down list box.
I am referring to
[URL]
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Dec 30, 2010
In my application I have 7 listboxes.Each list box has morethan 100 listitems.
the best way to pass the selected listitem values(including text values also) to stored procedure in sql server 2005.
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Apr 5, 2010
A security review was done against one of our ASP.net applications and returned in the test results was a SQL Injection Exposures considered to be a high risk item. The test that was performed passed a SQL statement as the value of the __EVENTTARGET and the __EVENTARGUMENT. I am wondering since these 2 values are ASP.net auto-generated hidden fields used for the Auto-Postback feature of the framework and hold information specific to the controls initiating the postback, is there really the potential for SQL injection if you are never manually calling and or pulling values out of these parameters in your code behind?
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Feb 3, 2011
I have stored procedure which selects records from an SQL table based on a bunch of user-input parameters.Just discovered that if a record in the table has null values in some of the columns (I haven't figured out which ones yet), then the SELECT is not returning the record (even if it satisfies all the parameters).The SELECT statement is supposed to allow for nulls, and I've been over it a bunch of times and am not sure what I'm doing wrong.Or do I need to get rid of all the null values in the SQL table, and prevent new ones from being introduced?
[Code]....
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Nov 12, 2010
In this query below I need the total of the 'amount' field.
SELECT
[Amount]
FROM
deals_DealBucks
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Oct 28, 2010
[Code]....
for some reason it doesnt return any values.
before i've added the inner join it worked perfectly.
i couldn't find my mistake, though i passed over it several times.
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Mar 2, 2011
Suppose I have one table called [Code]....:
[Code]....
I want to see the specialist name and his jobs IDs horizontally.
[Code]....
A specialist may have
[Code]....
jobs. Suppose specialist
[Code]....
has 10 jobs where BEN has 5 jobs.
In this way I want to show specialist his jobs horizontally where the number of jobs may vary per specialist.
How can I do this in SQL?
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Sep 20, 2015
Your example doesn't work, or I have missed something, I work on a website for information...
I have null in my variable ...
Protected Sub Submit(sender As Object, e As System.EventArgs)
Dim values As String = Request.Form(ListBox1.ID)
TextBox1.Text = values
End Sub
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Mar 22, 2011
I want to modify a Stored Procedure for blocking injection :
This is the original Stored Procedure (working fine) :
[Code]....
And this is my Stored Procedure with variables :
[Code]....
Why this is not working? I got a "Conversion from type 'DBNull' to type 'Boolean' is not valid."
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Sep 1, 2010
Our database affected with SQL Injection. so We need to create a sql server 2005 new login for SQL Injection prevention. User can perform, access tables with select, update and delete queryaccess views, functions and stored proc perform cursor. what are the permissions given for that login account?
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Mar 1, 2010
I have an ASP.NET page with a listbox whose selection mode is set to multiple by default. I would like to set its selection mode to single on a button click.
Code snippet of my attempt:
$('#testBtn').click(function(){
$('#testListBox').attr("SelectionMode","Single");
});
It is not working though. What am I doing wrong here and how to get it to work?
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Jun 30, 2012
I have a dropdown list which provided input to a SQLDataSource query which is bound to a listbox. When the user changes the index of the dropdown box, I want to trigger the SQQLDataSource to requery the database, and repopulate the listbox.
I have set the autopostback = true for the dropdown box. I have also added a Response.Redirect back to the same page in the SelectedIndexChanged method, but the DataSource does not Repopulate. How to trigger the requery?
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Feb 23, 2010
an ASP.NET web page I have an EntityDataSource:
<asp:EntityDataSource ID="EntityDataSourceOrders" runat="server"
ConnectionString="name=EntitiesContext"
DefaultContainerName="EntitiesContext"
[code]...
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Dec 23, 2010
I'm adding ListItems to a ListBox from two controls, both are DropDownLists. The ListItem has the properties ListItem.SelectedItem and ListItem.SelectedValue, but I also want the ListBox to keep track of which DropDownList the ListItem came from.What would be the best way to do this?
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Jan 28, 2010
I have some files listed on a listbox and want to upload them to the server. The values doesn't need to be selected. But I can't even get it working. Below is my source code:
[Code]....
Where is the bug in the code above?
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Jan 11, 2010
I'm currently trying to move through all the values added to a listbox by the user, however, I want to retrieve the actual value of each item in the listbox and not the text.
I've gotten so far with the code below, but that only gets the text and not the value.
[code]....
How would I go about getting the value for each item in the collection?
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Jul 26, 2010
I have this code which takes a value from a dropdown control as a parameter.
[Code]....
I'm now changing to a list control so that multiple items can be selected. So far I have some code that places the items selected into a string that looks like this:
'item1','item2','item4'
For the above example I would need all the the records returned when the field action_ref contains either item1 or item2 or item3.
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Jan 11, 2010
got a wired problem (well I find it a wired problem :P)
I have an order page done in asp.net c#, and which a user adds ingredients to a set of list boxes, once the user and finished adding items, they get combined to make a sandwich then added to another list box that shows the sandwiches and their ingredients. I also have a button to allow the user to remove the ighlighted sandwich from the order, this all works fine until the page loads up with a query string that skips the adding of ingredients and just shows the sandwiches on a order, the listbox of sandwiches populates fine but I then get an error when the remove button is clicked which is
[Code]
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Aug 11, 2010
I do have a listbox control and a button to update values of the list box with few other values of the form to the database. If i select 3 values in the listbox, it has to update the database in 3 rows (Unique for Listbox value) with the other value being the same. I use a details value for inserting values.
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Feb 17, 2011
I have 2 listboxes, when i add a item retrieved from database to Listbox1, i need to select the item and bring it to listbox2. But i do not want to have same records added again. In my case, i cannot use the codes below
[Code]....
because the text displayed on listbox1 and after transferring to listbox2 are different. So i come out with a logic which is "if listbox2 does not contain the item value in listbox1 then populate listbox2". So i tried the codes below, but it is not working as there are errors
[Code]....
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