82e32acb77
* Solutions added * Bugfixes * Introduction added (including how to start with webgoat and useful tools) * New lesson: Password strength * New lessons: Multi Level Login * Not yet working new lesson: Session fixation (inital release) git-svn-id: http://webgoat.googlecode.com/svn/trunk@301 4033779f-a91e-0410-96ef-6bf7bf53c507
1019 lines
48 KiB
HTML
1019 lines
48 KiB
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|
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<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
|
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Perform Http Splitting <o:p></o:p></span></p>
|
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|
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<p class=MsoNormal><b><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></b></p>
|
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|
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<p class=MsoNormal><b><span style='font-family:"Arial","sans-serif"'>Concept /
|
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Topic To Teach:</span></b><span style='font-family:"Arial","sans-serif"'> <o:p></o:p></span></p>
|
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<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>This lesson
|
||
teaches how to perform HTTP Splitting attacks. <o:p></o:p></span></p>
|
||
|
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<p class=MsoNormal><b><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></b></p>
|
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|
||
<p class=MsoNormal><b><span style='font-family:"Arial","sans-serif"'>How the
|
||
attacks works:</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"'>The attacker
|
||
passes malicious code to the web server together with normal input. A victim
|
||
application will not be checking for CR (carriage return, also given by %0d or
|
||
\r) and LF (line feed, also given by %0a or \n)characters. These characters not
|
||
only give attackers control of the remaining headers and body of the response
|
||
the application intends to send, but also allows them to create additional
|
||
responses entirely under their control.<br>
|
||
The effect of an HTTP Splitting attack is maximized when accompanied with a
|
||
Cache Poisoning. The goal of Cache Poisoning attack is to poison the cache of
|
||
the victim by fooling the cache to believe that the page hijacked using the
|
||
HTTP splitting is a good one and it is indeed the server's copy.<br>
|
||
The attack happens using the HTTP Splitting attack plus adding the <b>Last-Modified:</b>
|
||
header and setting it to a future date. This will force the browser to send <b>If-Modified-Since</b>
|
||
request header, which gives the attacker the chance to intercept the server's
|
||
reply and replace it with a '304 Not Modified' reply. A sample of a 304 response
|
||
is:<br>
|
||
HTTP/1.1 304 Not Modified <br>
|
||
Date: Fri, 30 Dec 2005 17:32:47 GMT <o:p></o:p></span></p>
|
||
|
||
<p class=MsoNormal><b><span style='font-family:"Arial","sans-serif"'><o:p> </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>
|
||
|
||
<!-- Start Instructions -->
|
||
|
||
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>
|
||
This lesson has two stages. Stage 1 teaches you how to do HTTP Splitting attacks while
|
||
stage 2 builds on that to teach you how to elevate HTTP Splitting to Cache Poisoning.<br>
|
||
Enter a language for the system to search by. You will notice that the
|
||
application is redirecting your request to another resource on the server. You
|
||
should be able to use the CR (%0d) and LF (%0a) to exploit the attack. Your
|
||
exercise should be to force the server to send a 200 OK. If the screen changed
|
||
as an effect to your attack, just go back to the homepage and after stage 2 is
|
||
exploited successfully you will find the green check in the left menu.<o:p></o:p></span></p>
|
||
|
||
<p class=MsoNormal><o:p> </o:p></p>
|
||
|
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<v:formulas>
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|
||
style='width:480pt;height:277.5pt;visibility:visible;mso-wrap-style:square'>
|
||
<v:imagedata src="/WebGoat/lesson_solutions/HttpSplitting_files/image001.png" o:title=""/>
|
||
</v:shape><![endif]--><![if !vml]><img width=640 height=370
|
||
src="/WebGoat/lesson_solutions/HttpSplitting_files/image029.jpg" v:shapes="Picture_x0020_159"><![endif]></span></p>
|
||
|
||
<p class=MsoNormal><o:p> </o:p></p>
|
||
|
||
<p class=MsoNormal><b style='mso-bidi-font-weight:normal'><span
|
||
style='font-family:"Arial","sans-serif"'>Solution:<o:p></o:p></span></b></p>
|
||
|
||
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>
|
||
Please note that this solution is written for Windows. If you use Linux you have to alter it.
|
||
Windows uses a CR and LF for new Line. Linux uses only LF.
|
||
So all the %0d%0a have to be replaced by %0a if you are using Linux.<br/><br/>
|
||
<o:p></o:p></span></p>
|
||
|
||
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Because the
|
||
input is not validated you can inject any HTTP syntax, carriage returns and
|
||
line-feed you want. <o:p></o:p></span></p>
|
||
|
||
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
|
||
|
||
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Enter a
|
||
language to examine what<61>s going on. You do have WebScarab intercepting HTTP
|
||
requests and responses?<o:p></o:p></span></p>
|
||
|
||
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
|
||
|
||
<p class=MsoNormal style='page-break-after:avoid'><span style='font-family:
|
||
"Arial","sans-serif";mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="Picture_x0020_160"
|
||
o:spid="_x0000_i1037" type="#_x0000_t75" style='width:480pt;height:277.5pt;
|
||
visibility:visible;mso-wrap-style:square'>
|
||
<v:imagedata src="/WebGoat/lesson_solutions/HttpSplitting_files/image003.png" o:title=""/>
|
||
</v:shape><![endif]--><![if !vml]><img width=640 height=370
|
||
src="/WebGoat/lesson_solutions/HttpSplitting_files/image030.jpg" v:shapes="Picture_x0020_160"><![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]--> Language en</p>
|
||
|
||
<p class=MsoNormal style='page-break-after:avoid'><span style='mso-no-proof:
|
||
yes'><!--[if gte vml 1]><v:shape id="Picture_x0020_161" o:spid="_x0000_i1036"
|
||
type="#_x0000_t75" style='width:481.5pt;height:344.25pt;visibility:visible;
|
||
mso-wrap-style:square'>
|
||
<v:imagedata src="/WebGoat/lesson_solutions/HttpSplitting_files/image005.png" o:title=""/>
|
||
</v:shape><![endif]--><![if !vml]><img width=642 height=459
|
||
src="/WebGoat/lesson_solutions/HttpSplitting_files/image031.jpg" v:shapes="Picture_x0020_161"><![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]--> HTTP Request</p>
|
||
|
||
<p class=MsoNormal><o:p> </o:p></p>
|
||
|
||
<p class=MsoNormal style='page-break-after:avoid'><span style='mso-no-proof:
|
||
yes'><!--[if gte vml 1]><v:shape id="Picture_x0020_162" o:spid="_x0000_i1035"
|
||
type="#_x0000_t75" style='width:481.5pt;height:344.25pt;visibility:visible;
|
||
mso-wrap-style:square'>
|
||
<v:imagedata src="/WebGoat/lesson_solutions/HttpSplitting_files/image007.png" o:title=""/>
|
||
</v:shape><![endif]--><![if !vml]><img width=642 height=459
|
||
src="/WebGoat/lesson_solutions/HttpSplitting_files/image032.jpg" v:shapes="Picture_x0020_162"><![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'>3</span><!--[if supportFields]><span style='mso-element:
|
||
field-end'></span><![endif]--> First HTTP Response</p>
|
||
|
||
<p class=MsoNormal><o:p> </o:p></p>
|
||
|
||
<p class=MsoNormal style='page-break-after:avoid'><span style='mso-no-proof:
|
||
yes'><!--[if gte vml 1]><v:shape id="Picture_x0020_163" o:spid="_x0000_i1034"
|
||
type="#_x0000_t75" style='width:481.5pt;height:344.25pt;visibility:visible;
|
||
mso-wrap-style:square'>
|
||
<v:imagedata src="/WebGoat/lesson_solutions/HttpSplitting_files/image009.png" o:title=""/>
|
||
</v:shape><![endif]--><![if !vml]><img width=642 height=459
|
||
src="/WebGoat/lesson_solutions/HttpSplitting_files/image033.jpg" v:shapes="Picture_x0020_163"><![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]--> Second HTTP Request</p>
|
||
|
||
<p class=MsoNormal><o:p> </o:p></p>
|
||
|
||
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Now inject
|
||
for the language en%0d%0a%0d%0a%0d%0a<o:p></o:p></span></p>
|
||
|
||
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
|
||
|
||
<p class=MsoNormal style='page-break-after:avoid'><span style='font-family:
|
||
"Arial","sans-serif";mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="Picture_x0020_164"
|
||
o:spid="_x0000_i1033" type="#_x0000_t75" style='width:481.5pt;height:344.25pt;
|
||
visibility:visible;mso-wrap-style:square'>
|
||
<v:imagedata src="/WebGoat/lesson_solutions/HttpSplitting_files/image011.png" o:title=""/>
|
||
</v:shape><![endif]--><![if !vml]><img width=642 height=459
|
||
src="/WebGoat/lesson_solutions/HttpSplitting_files/image034.jpg" v:shapes="Picture_x0020_164"><![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'>5</span><!--[if supportFields]><span style='mso-element:
|
||
field-end'></span><![endif]--> First HTTP Request</p>
|
||
|
||
<p class=MsoNormal><o:p> </o:p></p>
|
||
|
||
<p class=MsoNormal style='page-break-after:avoid'><span style='mso-no-proof:
|
||
yes'><!--[if gte vml 1]><v:shape id="Picture_x0020_165" o:spid="_x0000_i1032"
|
||
type="#_x0000_t75" style='width:481.5pt;height:344.25pt;visibility:visible;
|
||
mso-wrap-style:square'>
|
||
<v:imagedata src="/WebGoat/lesson_solutions/HttpSplitting_files/image013.png" o:title=""/>
|
||
</v:shape><![endif]--><![if !vml]><img width=642 height=459
|
||
src="/WebGoat/lesson_solutions/HttpSplitting_files/image035.jpg" v:shapes="Picture_x0020_165"><![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'>6</span><!--[if supportFields]><span style='mso-element:
|
||
field-end'></span><![endif]--> First HTTP Response</p>
|
||
|
||
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
|
||
|
||
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>The
|
||
Content-Length: 0 will tell the server that the first request is over.<o:p></o:p></span></p>
|
||
|
||
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>A 200 OK
|
||
message looks like this: HTTP/1.1 200 OK<o:p></o:p></span></p>
|
||
|
||
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
|
||
|
||
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Lets see what
|
||
you can do with: foobar%0d%0aContent-Length:%200%0d%0a%0d%0aHTTP/1.1%20200%20OK%0d%0aContent-Type:%20text/html%0d%0aContent-Length:%2047%0d%0a%0d%0a<html>Hacked
|
||
</span><span style='font-family:Wingdings;mso-ascii-font-family:Arial;
|
||
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial;mso-char-type:symbol;
|
||
mso-symbol-font-family:Wingdings'><span style='mso-char-type:symbol;mso-symbol-font-family:
|
||
Wingdings'>J</span></span><span style='font-family:"Arial","sans-serif"'></html><o:p></o:p></span></p>
|
||
|
||
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
|
||
|
||
<p class=MsoNormal style='page-break-after:avoid'><span style='font-family:
|
||
"Arial","sans-serif";mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="Picture_x0020_166"
|
||
o:spid="_x0000_i1031" type="#_x0000_t75" style='width:481.5pt;height:344.25pt;
|
||
visibility:visible;mso-wrap-style:square'>
|
||
<v:imagedata src="/WebGoat/lesson_solutions/HttpSplitting_files/image015.png" o:title=""/>
|
||
</v:shape><![endif]--><![if !vml]><img width=642 height=459
|
||
src="/WebGoat/lesson_solutions/HttpSplitting_files/image036.jpg" v:shapes="Picture_x0020_166"><![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'>7</span><!--[if supportFields]><span style='mso-element:
|
||
field-end'></span><![endif]--> HTTP Splitting attack</p>
|
||
|
||
<p class=MsoNormal><o:p> </o:p></p>
|
||
|
||
<p class=MsoNormal style='page-break-after:avoid'><span style='mso-no-proof:
|
||
yes'><!--[if gte vml 1]><v:shape id="Picture_x0020_167" o:spid="_x0000_i1030"
|
||
type="#_x0000_t75" style='width:481.5pt;height:344.25pt;visibility:visible;
|
||
mso-wrap-style:square'>
|
||
<v:imagedata src="/WebGoat/lesson_solutions/HttpSplitting_files/image017.png" o:title=""/>
|
||
</v:shape><![endif]--><![if !vml]><img width=642 height=459
|
||
src="/WebGoat/lesson_solutions/HttpSplitting_files/image037.jpg" v:shapes="Picture_x0020_167"><![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'>8</span><!--[if supportFields]><span style='mso-element:
|
||
field-end'></span><![endif]--> HTTP Response</p>
|
||
|
||
<p class=MsoNormal><o:p> </o:p></p>
|
||
|
||
<p class=MsoNormal style='page-break-after:avoid'><span style='mso-no-proof:
|
||
yes'><!--[if gte vml 1]><v:shape id="Picture_x0020_168" o:spid="_x0000_i1029"
|
||
type="#_x0000_t75" style='width:481.5pt;height:344.25pt;visibility:visible;
|
||
mso-wrap-style:square'>
|
||
<v:imagedata src="/WebGoat/lesson_solutions/HttpSplitting_files/image019.png" o:title=""/>
|
||
</v:shape><![endif]--><![if !vml]><img width=642 height=459
|
||
src="/WebGoat/lesson_solutions/HttpSplitting_files/image038.jpg" v:shapes="Picture_x0020_168"><![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'>9</span><!--[if supportFields]><span style='mso-element:
|
||
field-end'></span><![endif]--> Second HTTP Request</p>
|
||
|
||
<p class=MsoNormal><o:p> </o:p></p>
|
||
|
||
<p class=MsoNormal style='page-break-after:avoid'><span style='mso-no-proof:
|
||
yes'><!--[if gte vml 1]><v:shape id="Picture_x0020_169" o:spid="_x0000_i1028"
|
||
type="#_x0000_t75" style='width:481.5pt;height:344.25pt;visibility:visible;
|
||
mso-wrap-style:square'>
|
||
<v:imagedata src="/WebGoat/lesson_solutions/HttpSplitting_files/image021.png" o:title=""/>
|
||
</v:shape><![endif]--><![if !vml]><img width=642 height=459
|
||
src="/WebGoat/lesson_solutions/HttpSplitting_files/image039.jpg" v:shapes="Picture_x0020_169"><![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'>10</span><!--[if supportFields]><span
|
||
style='mso-element:field-end'></span><![endif]--> Second HTTP Response</p>
|
||
|
||
<p class=MsoNormal><o:p> </o:p></p>
|
||
|
||
<p class=MsoNormal style='page-break-after:avoid'><span style='mso-no-proof:
|
||
yes'><!--[if gte vml 1]><v:shape id="Picture_x0020_170" o:spid="_x0000_i1027"
|
||
type="#_x0000_t75" style='width:480pt;height:277.5pt;visibility:visible;
|
||
mso-wrap-style:square'>
|
||
<v:imagedata src="/WebGoat/lesson_solutions/HttpSplitting_files/image023.png" o:title=""/>
|
||
</v:shape><![endif]--><![if !vml]><img width=640 height=370
|
||
src="/WebGoat/lesson_solutions/HttpSplitting_files/image040.jpg" v:shapes="Picture_x0020_170"><![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'>11</span><!--[if supportFields]><span
|
||
style='mso-element:field-end'></span><![endif]--> Hacked!</p>
|
||
|
||
<p class=MsoNormal><o:p> </o:p></p>
|
||
|
||
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Hit the <20>Back<63>
|
||
button of your browser.<o:p></o:p></span></p>
|
||
|
||
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
|
||
|
||
<p class=MsoNormal style='page-break-after:avoid'><span style='font-family:
|
||
"Arial","sans-serif";mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="Picture_x0020_171"
|
||
o:spid="_x0000_i1026" type="#_x0000_t75" style='width:480pt;height:277.5pt;
|
||
visibility:visible;mso-wrap-style:square'>
|
||
<v:imagedata src="/WebGoat/lesson_solutions/HttpSplitting_files/image025.png" o:title=""/>
|
||
</v:shape><![endif]--><![if !vml]><img width=640 height=370
|
||
src="/WebGoat/lesson_solutions/HttpSplitting_files/image041.jpg" v:shapes="Picture_x0020_171"><![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'>12</span><!--[if supportFields]><span
|
||
style='mso-element:field-end'></span><![endif]--> Stage 1 completed</p>
|
||
|
||
<p class=MsoNormal><o:p> </o:p></p>
|
||
|
||
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Now you know
|
||
how to do HTTP Splitting. You can abuse this technique to do a cache poisoning
|
||
attack.<o:p></o:p></span></p>
|
||
|
||
<p class=MsoNormal><o:p> </o:p></p>
|
||
|
||
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Cache
|
||
poisoning requires manipulating the Last-Modified header. This must be changed
|
||
to a date in the future.<o:p></o:p></span></p>
|
||
|
||
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Inject: foobar%0d%0aContent-Length:%200%0d%0a%0d%0aHTTP/1.1%20200%20OK%0d%0aContent-Type:%20text/html%0d%0aLast-Modified:%20Mon,%2027%20Oct%202003%2014:50:18%20GMT%0d%0aContent-Length:%2047%0d%0a%0d%0a<html>Hacked
|
||
</span><span style='font-family:Wingdings;mso-ascii-font-family:Arial;
|
||
mso-hansi-font-family:Arial;mso-bidi-font-family:Arial;mso-char-type:symbol;
|
||
mso-symbol-font-family:Wingdings'><span style='mso-char-type:symbol;mso-symbol-font-family:
|
||
Wingdings'>J</span></span><span style='font-family:"Arial","sans-serif"'></html><o:p></o:p></span></p>
|
||
|
||
<p class=MsoNormal><o:p> </o:p></p>
|
||
|
||
<p class=MsoNormal style='page-break-after:avoid'><span style='mso-no-proof:
|
||
yes'><!--[if gte vml 1]><v:shape id="Picture_x0020_172" o:spid="_x0000_i1025"
|
||
type="#_x0000_t75" style='width:480pt;height:277.5pt;visibility:visible;
|
||
mso-wrap-style:square'>
|
||
<v:imagedata src="/WebGoat/lesson_solutions/HttpSplitting_files/image027.png" o:title=""/>
|
||
</v:shape><![endif]--><![if !vml]><img width=640 height=370
|
||
src="/WebGoat/lesson_solutions/HttpSplitting_files/image042.jpg" v:shapes="Picture_x0020_172"><![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'>13</span><!--[if supportFields]><span
|
||
style='mso-element:field-end'></span><![endif]--> Inject cache poisoning</p>
|
||
|
||
<p class=MsoNormal><o:p> </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='/WebGoat/images/logos/zionsecurity.gif'></td>
|
||
</tr>
|
||
</table>
|
||
|
||
</body>
|
||
|
||
</html>
|