How To Correctly Create Web Service With WHERE Clause Preventing Injection
Jan 12, 2012
I have a web service running that reliably returns a dataset and allows me to provide a list now drop down list box of records returned.I would like to capture the users selection from the DDL and call another web service to return detailed information regarding the selection. Hence a WHERE stmt in the query of the web service. I am of course worried about SQL injection. But I would ike to at least get the SQL stmt working.The selection is a string field type, and looks like this,[code]Everything works for other web services if I remove the query with the WHERE clause.
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Oct 25, 2010
I have this code
UPDATE OPENQUERY (db,'SELECT * FROM table WHERE ref = ''"+ Ref +"'' AND bookno = ''"+ Session("number") +"'' ')
How would I prevent SQL Injections on this?
[code].....
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Aug 15, 2010
How should I create between clause in my query?
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Nov 12, 2009
I just want to create an service which will on start read my XML file .It gets the number of parameters connected to PC. I just want to know that is it possible to create the timers at run time in my service and the timers should start at the same time but will having different time span to exicute means one timer will start after every one minute while another after 2 or 3 or whatever i set.
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Dec 4, 2011
I would like to know if removing the following specials character would be enough to protect my program against SQL Injection :
"'/*$%()!#^&
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Jul 21, 2009
I know it is possible with C#, C++, VB 6 but i'm not sure about VB.net 2008, i have looked around to see if it is possible but have not found a way. There isn't a specific reason i need to know, just curious... So, is it possible with vb.net, if so how? CreateRemoteThread?
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Nov 25, 2009
I've been contracted to analyze an existing Data Provider and I know the following code is faulty; but in order to point out how bad it is, I need to prove that it's susceptible to SQL injection.
Question What "Key" parameter could break the PrepareString function and allow me to execute a DROP statement?
[Code]...
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Mar 21, 2012
I've found some tutorials on this already, but they aren't exactly what I'm looking for, I can use the following for username fields and password fields
[Code]...
So I need to run this with parametrized queries rather than how I'm doing it now?
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Nov 19, 2009
is there a way to detect if the text in a textbox contain code for Sql Injection?
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Jan 29, 2010
I have re-written my code I would now like to check if my code is still open to SQL Injections after this work. I believe the code is now working as it should, but any blinding errors that you see i'd love to hear about too. My code is now looking like: -code removed-
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Jul 8, 2009
I know i must use Stored Procedures as much as Possible, but i would like to know the following.
A: Can i get a SQL Injection attack from a SELECT statement such as (Select * from MyTable) ?
B: Also, can i get a SQL Injection attack when I use the SQLDataSource in ASP.NET?
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Nov 17, 2011
I will post a sequence of examples and thought about sql injection, I wish the expert will correct any small mistake in what I will say so I can know exactly the possible danger.
The required is to create a function in vb.net that accept 2 parameter (table_name, fields_list) and return the result in datatable
Now, I am aware of that table_name and fields_list cannot be passed as parameter to the command object using .AddParameter
here is a couple of thoughts, what I would like to know is
1- which function is exposed to sql injection
2- Which function is more safe
Public Class Form14
Dim conn as New SqlClient.SqlConnection(connection_string)
Private Sub Button1_Click( ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[code].....
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Jun 14, 2011
I have a question... I recently came across a program called WPE Pro (Winsock Packet Editor Pro). Basically what it does is lets you sniff, edit and send packets intercepted from a process. Thats the key word here PROCESS. From what I can tell WPE uses DLL injection to sniff and inject packets directly into an active socket connection on the target process. What I want to know is how would I go about achieving this? If it isn't possible with the .NET language, is it possible to goto C++ or something?
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Jun 8, 2012
My question is how best to avoid SQL Injection with the method I am currently using.EDIT (Reasoning): There are many of columns in a number of tables (a number which grows (only) and is maintained elsewhere). I need a method of allowing the user to decide which (predefined) column they want to query (and if necessary apply string functions to). The query itself is far too complex for the user to write themselves, nor do they have access to the db. There are 1000's of users with varying requirements and I need to remain as flexible as possible - I shouldn't have to revisit the code unless the main query needs to change - Also, there is no way of knowing what conditions the user will need to use
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May 26, 2009
I have a relatively small app that Im building using vb.net 2.0, and nant. Its a app that calls out to an external exe to produce some output files, then processes those output files afterwards.I have built an interface to the exe, which I have created a stub implementation and the real implementation, what I would like to be able to do is use nant to either create a DEBUG build of the app, which calls the stub implementation, or create a PROD build of the app which will use the correct implementation.
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Sep 18, 2008
I'm developing a VS2008 ASP.NET VB.NET application that uses a SQL Server Express databaseALL database access is via parametrized stored procedures, where I pass the data for each field to the stored procedure as a parameter.
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May 17, 2009
I know that hooks are programmed with C++.
I would like to know some stuff here:
1) When dll is injected how can u activate a function?
2) What is a class exactly in a dll?
3) Can you design a class?
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Jul 14, 2011
i have a Windows service that is hosting a WCF service through net.tcp and this is working great. I have also created a WCF service application. I am trying to add the net.tcp service reference to the service application. Then I add it to the GAC that goes ok but if I try to RegAsm the WCF service application to allow it to be called from Server.CreateObject I get the error:
Warning: Type library exporter encountered a type that derives from a
generic class and is not marked as
[ClassInterface(ClassInterfaceType.None)]. Class interfaces cannot be
exposed for such types. Consider marking the type with
[ClassInterface(ClassInterfaceType.None)] and exposing an explicit
interface as the default interface to COM using the
ComDefaultInterface attribute.
It does not work. I have tried to call it through a class library but this does not work either as the end point is not set correctly.
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Jul 9, 2011
What does a Windows service do? And how to create one?
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Oct 15, 2010
I'm using VS 2005 and Im trying to create a Windows Service that monitors our Sharepoint Search Service.Problem is, I've never written a Windows Service application. My guess is that I need to loop thru all the services, find the "Sharepoint Search Service", and and then right the code once I've identified it. I have no idea what object I need to loop thru. I tried using the System.ServiceProcess.ServiceBase object but that doesn't fly.
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Mar 29, 2011
I have created an login application in vb.net
I want it to run before windows login comes
How do i do that?
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Dec 6, 2010
Is there a template in vs2008 I can use to create a windows service? Or do you just write code in a regular command line project?
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Jul 12, 2011
I have the following sub in a windows form:
Private Sub BTNC_storeclientdata_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BTNC_storeclientdata.Click
' Update Clientdata[code].....
This performs an update in the SQL Database via a stored procedure. When I add '; insert into codeinjection(test) values ('CodeInjected!'); select ' in the last textbox (TBC_phone.Text) the value 'codeinjdected' is inserted into the table codeinjection as well. How can I avoid this?
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Jun 13, 2012
I have some clients calling my asmx service and I figure out to change my asmx to a Wcf service.How can my asmx clients call to my Wcf service without modify the client application?Maybe just a few changes in the config file...I can't expect than they compile their applications.
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Apr 20, 2009
create setuppProject for windows service i am using this service as a remoting server?
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Mar 29, 2010
Is there a any code to create the windows service in VB.net 2005 that you can pass on. I am actually trying to make a Windows service which will query SQL as well as Oracle database using procedures. This service will keep running until it is manually shutdown. This is my first windows Service I am writing in VB.net.
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May 10, 2012
I have tried to create windows service using SHDocVw.dll in vb.net, but it generates error The error is could not load SHDocVw.dll into windows service.How to fix this issue?
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May 10, 2012
I have tried to create windows service using SHDocVw.dll in vb.net, but it generates error The error is could not load SHDocVw.dll into windows service.
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Nov 29, 2010
[code]And this is the code, coming from the web service's vb page, where I'm getting the error:[code]MusicDataTable comes from a dataset called music.The GetMusic() works because I'm not passing it anything. I'm not sure why insertSong and deleteSong aren't working.
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Sep 2, 2010
So I get thrown an exception right when I try to create a new instance of my Web Service that says:
"Could not find default endpoint element that references contract 'KBBVehicleService.IVehicleInformationService' in the ServiceModel client configuration section. This might be because no configuration file was found for your application, or because no endpoint element matching this contract could be found in the client element."
This is a web service that will connect to Kelley Blue Book. I know I need a new endpoint entry in my Web.Config, but what does this look like? The one I added looks like this:
<endpoint address="http://localhost:3300/KBB.svc" binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_Default" contract="Services.Client.IVehicleInformationService"/>
But it doesn't work. Still throws the same exception at the same place.
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