full-disclosure - XSS in yacy 0.31

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Message-ID: <20041224145236.4A6B11581FE@chernobyl.investici.org>
From: fdonato at autistici.org (Donato Ferrante)
Subject: XSS in yacy 0.31


                           Donato Ferrante


Application:  yacy
              http://www.yacy.net

Version:      0.31

Bug:          cross site scripting

Date:         24-Dec-2004

Author:       Donato Ferrante
              e-mail: fdonato@...istici.org
              web:    www.autistici.org/fdonato


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1. Description
2. The bug
3. The code
4. The fix



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----------------
1. Description:
----------------

Vendor's Description:

"YACY: a Java Freeware Open-Source Caching HTTP Proxy and Global
P2P-Based Search Engine"



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------------
2. The bug:
------------

The input strings, into some field, are not filtered by the server so
they will appear in the returned page.



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-------------
3. The code:
-------------

To test the vulnerability, try for example:

1.
   http://[host]:8080/index.html?urlmaskfilter=[XSS]
-
2.
   http://[host]:8080/Wiki.html?page=[XSS]
-



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------------
4. The fix:
------------

Bug fixed in the version 0.32.



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