WebGoat/webapp/lesson_solutions/WsSqlInjection.html

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<div class=Section1>
<p class=MsoNormal><b><span style='font-family:"Arial","sans-serif"'>Lesson
Plan Title:</span></b><span style='font-family:"Arial","sans-serif"'> How to
Perform Web Service SQL Injection<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></p>
<p class=MsoNormal><b><span style='font-family:"Arial","sans-serif"'>Concept /
Topic To Teach:</span></b><span style='font-family:"Arial","sans-serif"'> <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><!-- Start Instructions -->Web
Services communicate through the use of SOAP requests. These requests are
submitted to a web service in an attempt to execute a function defined in the
web service definition language (WSDL) file. <o:p></o:p></span></p>
<p class=MsoNormal><b><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></b></p>
<p class=MsoNormal><b><span style='font-family:"Arial","sans-serif"'>General
Goal(s):</span></b><span style='font-family:"Arial","sans-serif"'> <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Check the web
service description language (WSDL) file and try to obtain multiple customer
credit card numbers. You will not see the results returned to this screen. When
you believe you have suceeded, refresh the page and look for the 'green star'.<o:p></o:p></span></p>
<h2><span style='color:windowtext'>Solution:<o:p></o:p></span></h2>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>This lesson
can be solved easily by using a web services tool called SOAPUI. But here you
will only use WebScarab. Go in WebScarab to the tab "Web Services". You will
see a history of invoked web services or WSDL files.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></p>
<p class=MsoNormal style='page-break-after:avoid'><span style='font-family:
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<v:formulas>
<v:f eqn="if lineDrawn pixelLineWidth 0"/>
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<v:f eqn="sum 0 0 @1"/>
<v:f eqn="prod @2 1 2"/>
<v:f eqn="prod @3 21600 pixelWidth"/>
<v:f eqn="prod @3 21600 pixelHeight"/>
<v:f eqn="sum @0 0 1"/>
<v:f eqn="prod @6 1 2"/>
<v:f eqn="prod @7 21600 pixelWidth"/>
<v:f eqn="sum @8 21600 0"/>
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src="lesson_solutions/WsSqlInjection_files/image002.jpg" v:shapes="Picture_x0020_31"><![endif]></span></p>
<p class=MsoCaption>Figure <!--[if supportFields]><span style='mso-element:
field-begin'></span><span style='mso-spacerun:yes'><3E></span>SEQ Figure \* ARABIC
<span style='mso-element:field-separator'></span><![endif]--><span
style='mso-no-proof:yes'>1</span><!--[if supportFields]><span style='mso-element:
field-end'></span><![endif]--> Lesson 23</p>
<p class=MsoNormal><o:p>&nbsp;</o:p></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Open the
WebGoat WSDL file for this lesson (WsSqlInjection?WSDL) in a new window.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>In WebScarab
you can select this WSDL from the top drop-down box. And WebScarab will parse
the XML file so you can select the operations to invoke. Then you can enter a
value for the parameters used to invoke the operation. For example fill out the
integer 101 for the ID value and click "Execute". WebScarab will pop-up a basic
authentication window. Enter username:guest, password:guest and host:localhost then click "Ok".
If the pop-up does not appear you have to go to "Tools" > "Credentials". There you should activate "Ask when required". <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></p>
<p class=MsoNormal style='page-break-after:avoid'><span style='font-family:
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</v:shape><![endif]--><![if !vml]><img width=419 height=208
src="lesson_solutions/WsSqlInjection_files/image004.jpg" v:shapes="Picture_x0020_32"><![endif]></span></p>
<p class=MsoCaption>Figure <!--[if supportFields]><span style='mso-element:
field-begin'></span><span style='mso-spacerun:yes'><3E></span>SEQ Figure \* ARABIC
<span style='mso-element:field-separator'></span><![endif]--><span
style='mso-no-proof:yes'>2</span><!--[if supportFields]><span style='mso-element:
field-end'></span><![endif]--> Basic authentication<span style='font-family:
"Arial","sans-serif"'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></p>
<p class=MsoNormal style='page-break-after:avoid'><span style='font-family:
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<v:imagedata src="lesson_solutions/WsSqlInjection_files/image005.png" o:title=""/>
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<p class=MsoCaption>Figure <!--[if supportFields]><span style='mso-element:
field-begin'></span><span style='mso-spacerun:yes'><3E></span>SEQ Figure \* ARABIC
<span style='mso-element:field-separator'></span><![endif]--><span
style='mso-no-proof:yes'>3</span><!--[if supportFields]><span style='mso-element:
field-end'></span><![endif]--> Webservice Response<span style='font-family:
"Arial","sans-serif"'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>What happens
if you change 101 to 1 OR 1=1? Will you get all the credit cards?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Yes </span><span
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Wingdings'><span style='mso-char-type:symbol;mso-symbol-font-family:Wingdings'>J</span></span><span
style='font-family:"Arial","sans-serif"'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></p>
<p class=MsoNormal style='page-break-after:avoid'><span style='font-family:
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src="lesson_solutions/WsSqlInjection_files/image008.jpg" v:shapes="Picture_x0020_34"><![endif]></span></p>
<p class=MsoCaption>Figure <!--[if supportFields]><span style='mso-element:
field-begin'></span><span style='mso-spacerun:yes'><3E></span>SEQ Figure \* ARABIC
<span style='mso-element:field-separator'></span><![endif]--><span
style='mso-no-proof:yes'>4</span><!--[if supportFields]><span style='mso-element:
field-end'></span><![endif]--> All the credit cards<span style='font-family:
"Arial","sans-serif"'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p>&nbsp;</o:p></span></p>
<p class=MsoNormal><b style='mso-bidi-font-weight:normal'><u><span
style='font-family:"Arial","sans-serif"'>Remark:</span></u></b><span
style='font-family:"Arial","sans-serif"'> when you don't get any responses you
might want to select the service and operation again from the drop-down box. A nice
feature here would be the ability to make a raw SOAP request.<o:p></o:p></span></p>
<p class=MsoNormal><o:p>&nbsp;</o:p></p>
</div>
<table align='RIGHT' cellspacing='0' width='90%' border='0' cellpadding='0'>
<tr>
<td valign='MIDDLE' width='100%' align='RIGHT class=MsoNormal' style='font-family:"Arial","sans-serif"'>
Solution by Erwin Geirnaert
</td>
<td valign='MIDDLE' align='RIGHT'><img hspace='0' vspace='0' border='0' alt='ZION SECURITY' src='images/logos/zionsecurity.gif'></td>
</tr>
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