ebfcd02a9f
git-svn-id: http://webgoat.googlecode.com/svn/trunk@247 4033779f-a91e-0410-96ef-6bf7bf53c507
14 lines
843 B
HTML
14 lines
843 B
HTML
<div align="Center">
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<p><b>Lesson Plan Title: </b>Dangerous Use of Eval</p>
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</div>
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<p><b>Concept / Topic To Teach:</b> </p>
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<!-- Start Instructions -->
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It is always a good practice to validate all input on the server side. XSS can occur
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when unvalidated user input is reflected directly into an HTTP response. In this lesson, unvalidated
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user-supplied data is used in conjunction with a Javascript eval() call. In a reflected
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XSS attack, an attacker can craft a URL with the attack script and store it on another
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website, email it, or otherwise trick a victim into clicking on it.
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<!-- Stop Instructions -->
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<p><b>General Goal(s):</b> </p>
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For this exercise, your mission is to come up with some input which, when run through eval,
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will execute a malicious script. In order to pass this lesson, you must 'alert()' document.cookie. |