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Injection attacks

Posted By:      Posted Date: August 28, 2010    Points: 0   Category :Sql Server
How do we protect our site fomr SQL Injection attacks, among other security  practices?

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Data Security: Stop SQL Injection Attacks Before They Stop You


To execute a SQL injection attack, a hacker writes a Web page that captures text in a textbox to be used to execute a query against a database. The hacker enters a malformed SQL statement into the textbox that causes the back-end database to perform operations the owners did not intend it to perform, like making unauthorized updates. This article explains how you can protect against the all too common SQL injection attack in your own database. The steps covered include data validation, proper exception handing, and much more.

Paul Litwin

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SQL Injection Walkthrough / Tutorial

SQL Injection is a trick to inject SQL query/command as an input possibly via web pages. Many web pages take parameters from web user, and make SQL query to the database. Take for instance when a user login, web page that user name and password and make SQL query to the database to check if a user has valid name and password. With SQL Injection, it is possible for us to send crafted user name and/or password field that will change the SQL query and thus grant us something else.

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SQL Security: New SQL Truncation Attacks And How To Avoid Them


Exploits using SQL injection have drawn a lot of attention for their ability to get through firewalls and intrusion detection systems to compromise your data layers. Whether it's a first-order or second-order injection, if you look at the basic code pattern, it is similar to any other injection issue where you use untrusted data in the construction of a statement.

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Today there is a greater focus than ever on reusing existing components and wiring together disparate components to form a cohesive architecture. But this wiring can quickly become a daunting task because as application size and complexity increase, so do dependencies.

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Safe!: Repel Attacks on Your Code with the Visual Studio 2005 Safe C and C++ Libraries


When Visual Studio 2005 ships, it will include a major upgrade to the Visual C++ Libraries that was the result of a complete security review of the functions contained in the C Runtime Library, Standard C++ Library, ATL, and MFC. From that extensive review came the Safe C and C++ Libraries, which can improve the security and robustness of your apps.

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Developer's machines can often be more vulnerable to viruses than the average corporate user because of their more frequent access to remote machines and shares, and the differing administrative privileges they maintain across mutiple machines. Reliance on antivirus software is fine as a first line of defense, but you need a basic arsenal of skills for securing the executables on your system and coping with viruses on your own. This article reviews proactive methods you can use to defend yourself against malicious executable code in resources, component libraries, scripts and macros, as well as how to avoid a handful of other potential vulnerabilities.

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To help stop the spread of worms, viruses, and other hostile activity, it is important to track down and report the servers used in these attacks along with those used to send spam. Many Web administrators, however, don't take the time to track them because the manual process can be quite cumbersome. The Microsoft .NET Framework comes to the rescue with several networking classes, including the Dns class and the TcpClient class, that abstract away the complexity of performing DNS and WHOIS lookups. These classes make it easy to create a simple, straightforward ASP.NET-based utility for performing these lookups and automating this very important task.

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sql Injection



In a Text field whatever I will enter after less than "<" symbol will disappear.

 So I am just replacing this symbol with a space, please let me know if there is any other desired output we need here.




UserControl, CustomControl Design Time Support errors IOC, Dependency Injection, MVP

  Hi, is there a way to completely disable design time support for CustomControl, and UserControl ? I have about 30 UserControls and 10 CustomControls in my WinForms app, which contains some Dependency Injections and IOC stuff in constructors and Load handlers. I have lots of large UserControls containing smaller UserControls (CompositeView). All my UI code is pretty dynamic and the only thing i need to do at design time is to drag&drop containers in other containers (UserControls). And now i have a hard time doing this, because i have to wrap all constructors and Load Handlers in CurrentProccess!="devenv"... and when I'm Implementing some new View interface (which consist lots of properties) in UserControl all those properties by default throw NotImplementedException and i don't always need to implement them immediately but still i need to be able to run this code for testing. Besides, then i have to clean up designer generated class because it adds unnecessary null value property initializations, and then it way add some other ____ code, and so on.... Imagine UserControl with 10-15 nested UserControls, and then i try to open it in Form Designer and get ObjectReference NULL exception (for IOC) or some NotSupported NotImplemented exceptions (for properties) without adequate CallStack available! There is a CallStack but there is no trace in it to my Code (

How to use injection for workflows

I want to inject some instances and values into a workflow using Unity. It seems that the only way to do this is to define InArgument properties on the workflow and assign values to those arguments on the workflow instance prior to running the workflow. For example: <Activity mc:Ignorable="sap" x:Class="WorkflowConsoleApplication1.Workflow1" xmlns="http://schemas.microsoft.com/netfx/2009/xaml/activities" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:mv="clr-namespace:Microsoft.VisualBasic;assembly=System" xmlns:mva="clr-namespace:Microsoft.VisualBasic.Activities;assembly=System.Activities" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:s1="clr-namespace:System;assembly=System" xmlns:s2="clr-namespace:System;assembly=System.Xml" xmlns:s3="clr-namespace:System;assembly=System.Core" xmlns:s4="clr-namespace:System;assembly=System.ServiceModel" xmlns:sa="clr-namespace:System.Activities;assembly=System.Activities" xmlns:sad="clr-namespace:System.Activities.Debugger;assembly=System.Activities" xmlns:sap="http://schemas.microsoft.com/netfx/2009/xaml/activities/presentation" xmlns:scg="clr-namespace:System.Collections.Generic;assembly=System" xmlns:scg1="clr-namespace:System.Collections.Gene

create a sql server 2005 new login for SQL Injection prevention

    Hi All,  Thank you for advance. 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 procperform cursor     what are the permissions given for that login account?

ASP.NET MVC 3 P1 Filter Injection

Hello!I've read through Brad Wilson's article series "ASP.NET MVC 3 Service Location" (http://bradwilson.typepad.com/blog/2010/07/service-location-pt4-filters.html) and tried to get filter injection work with Unity without success (Stack Trace: http://www.aspkoll.se/code/Index.asp?id=625).Feels like I have searched for all relevant keywords I can think of but have not found any other article that takes up the subject so the question is, how do I solve it with the filter injection? Can also add that the code is exactly the same as Brad Wilson's and I use the newest version of Unity.Thanks,Timmie
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