85 lines
2.1 KiB
Ruby
85 lines
2.1 KiB
Ruby
require 'rex/proto/dcerpc'
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module Msf
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###
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#
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# This mixin provides utility methods for interacting with a DCERPC service on
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# a remote machine. These methods may generally be useful in the context of
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# exploitation. This mixin extends the Tcp exploit mixin. Only one DCERPC
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# service can be accessed at a time using this class.
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#
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###
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module Exploit::Remote::DCERPC
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include Exploit::Remote::Tcp
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# Alias over the Rex DCERPC protocol modules
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DCERPCPacket = Rex::Proto::DCERPC::Packet
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DCERPCClient = Rex::Proto::DCERPC::Client
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DCERPCResponse = Rex::Proto::DCERPC::Response
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DCERPCUUID = Rex::Proto::DCERPC::UUID
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NDR = Rex::Proto::DCERPC::NDR
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def initialize(info = {})
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super
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register_advanced_options(
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[
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OptInt.new('DCERPCFragSize', [ true, 'Set the DCERPC packet fragmentation size', 127]),
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OptBool.new('DCERPCFakeMultiBind', [ false, 'Use multi-context bind calls', 'True' ])
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], Msf::Exploit::Remote::DCERPC)
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register_options(
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[
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Opt::RHOST,
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Opt::RPORT(135),
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], Msf::Exploit::Remote::DCERPC
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)
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end
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def dcerpc_handle (uuid, version, protocol, opts)
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self.handle = Rex::Proto::DCERPC::Handle.new([uuid, version], protocol, datastore['RHOST'], opts)
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end
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def dcerpc_bind (h)
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opts = { 'Msf' => framework, 'MsfExploit' => self }
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if datastore['DCERPCFragSize']
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opts['frag_size'] = datastore['DCERPCFragSize']
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end
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if datastore['DCERPCFakeMultiBind']
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opts['fake_multi_bind'] = 1
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end
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if datastore['SMBUSER']
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opts['smb_user'] = datastore['SMBUSER']
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end
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if datastore['SMBPASS']
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opts['smb_pass'] = datastore['SMBPASS']
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end
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self.dcerpc = Rex::Proto::DCERPC::Client.new(h, dcerpc_socket(), opts)
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if self.handle.protocol == 'ncacn_np'
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self.simple = self.dcerpc.smb # expose the simple client if we have access to it
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end
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end
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def dcerpc_call (function, stub = '')
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dcerpc.call(function, stub)
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end
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# Convert a standard ASCII string to 16-bit Unicode
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def unicode (str)
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Rex::Text.to_unicode(str)
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end
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# Used to track the last DCERPC context
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attr_accessor :dcerpc_bind_context, :handle, :dcerpc, :dcerpc_socket
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end
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end
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