Miscellaneous bug fixes

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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<div align="Center">
<p><b>Lesson Plan Title:</b> How to Perform SQL Injection</p>
</div>
<p><b>Concept / Topic To Teach:</b></p>
<!-- Start Instructions -->
It is always a good practice to scrub all inputs, especially those
inputs that will later be used as parameters to OS commands, scripts,
and database queries. Users should not be able to alter the intent of
commands that are executed on the server, in many cases as a privileged user.
<!-- Stop Instructions -->
<p><b>General Goal(s):</b></p>
For this exercise, you will perform a SQL Injection attack.
You will also implement code changes in the database to defeat
these attacks.
<br>