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Miscellaneous bug fixes

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divide by zero, inaccurate discount and totals, reflection of user input


git-svn-id: http://webgoat.googlecode.com/svn/trunk/webgoat@273 4033779f-a91e-0410-96ef-6bf7bf53c507
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rogan.dawes
2008-01-14 14:02:11 +00:00
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main/project/WebContent/lesson_plans/DangerousEval.html Normal file
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<div align="Center">
<p><b>Lesson Plan Title: </b>Dangerous Use of Eval</p>
</div>
<p><b>Concept / Topic To Teach:</b> </p>
<!-- Start Instructions -->
It is always a good practice to validate all input on the server side. XSS can occur
when unvalidated user input is reflected directly into an HTTP response. In this lesson, unvalidated
user-supplied data is used in conjunction with a Javascript eval() call. In a reflected
XSS attack, an attacker can craft a URL with the attack script and store it on another
website, email it, or otherwise trick a victim into clicking on it.
<!-- Stop Instructions -->
<p><b>General Goal(s):</b> </p>
For this exercise, your mission is to come up with some input which, when run through eval,
will execute a malicious script. In order to pass this lesson, you must 'alert()' document.cookie.