Fix railgun EOL
parent
e8cf26390a
commit
0b3143ff45
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@ -1,299 +1,299 @@
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# -*- coding: binary -*-
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# Copyright (c) 2010, patrickHVE@googlemail.com
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * The names of the author may not be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL patrickHVE@googlemail.com BE LIABLE FOR ANY
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# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# sf - Sept 2010 - Modified for x64 support and merged into the stdapi extension.
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#
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#
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# chao - June 2011 - major overhaul of dll lazy loading, caching, and bit of everything
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#
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require 'pp'
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require 'enumerator'
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require 'rex/post/meterpreter/extensions/stdapi/railgun/api_constants'
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require 'rex/post/meterpreter/extensions/stdapi/railgun/tlv'
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require 'rex/post/meterpreter/extensions/stdapi/railgun/util'
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require 'rex/post/meterpreter/extensions/stdapi/railgun/win_const_manager'
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require 'rex/post/meterpreter/extensions/stdapi/railgun/multicall'
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require 'rex/post/meterpreter/extensions/stdapi/railgun/dll'
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require 'rex/post/meterpreter/extensions/stdapi/railgun/dll_wrapper'
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module Rex
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module Post
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module Meterpreter
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module Extensions
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module Stdapi
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module Railgun
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#
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# The Railgun class to dynamically expose the Windows API.
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#
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class Railgun
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#
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# Railgun::DLL's that have builtin definitions.
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#
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# If you want to add additional DLL definitions to be preloaded create a
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# definition class 'rex/post/meterpreter/extensions/stdapi/railgun/def/'.
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# Naming is important and should follow convention. For example, if your
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# dll's name was "my_dll"
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# file name: def_my_dll.rb
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# class name: Def_my_dll
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# entry below: 'my_dll'
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#
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BUILTIN_DLLS = [
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'kernel32',
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'ntdll',
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'user32',
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'ws2_32',
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'iphlpapi',
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'advapi32',
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'shell32',
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'netapi32',
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'crypt32',
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'wlanapi',
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'wldap32'
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].freeze
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##
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# Returns a Hash containing DLLs added to this instance with #add_dll
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# as well as references to any frozen cached dlls added directly in #get_dll
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# and copies of any frozen dlls (added directly with #add_function)
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# that the user attempted to modify with #add_function.
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#
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# Keys are friendly DLL names and values are the corresponding DLL instance
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attr_accessor :dlls
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##
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# Contains a reference to the client that corresponds to this instance of railgun
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attr_accessor :client
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##
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# These DLLs are loaded lazily and then shared amongst all railgun instances.
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# For safety reasons this variable should only be read/written within #get_dll.
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@@cached_dlls = {}
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# if you are going to touch @@cached_dlls, wear protection
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@@cache_semaphore = Mutex.new
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def initialize(client)
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self.client = client
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self.dlls = {}
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end
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def self.builtin_dlls
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BUILTIN_DLLS
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end
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#
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# Return this Railgun's Util instance.
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#
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def util
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if @util.nil?
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@util = Util.new(self, client.platform)
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end
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return @util
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end
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#
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# Return this Railgun's WinConstManager instance, initially populated with
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# constants defined in ApiConstants.
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#
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def constant_manager
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# Loads lazily
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return ApiConstants.manager
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end
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#
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# Read data from a memory address on the host (useful for working with
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# LPVOID parameters)
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#
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def memread(address, length)
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raise "Invalid parameters." if(not address or not length)
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request = Packet.create_request('stdapi_railgun_memread')
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request.add_tlv(TLV_TYPE_RAILGUN_MEM_ADDRESS, address)
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request.add_tlv(TLV_TYPE_RAILGUN_MEM_LENGTH, length)
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response = client.send_request(request)
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if(response.result == 0)
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return response.get_tlv_value(TLV_TYPE_RAILGUN_MEM_DATA)
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end
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return nil
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end
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#
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# Write data to a memory address on the host (useful for working with
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# LPVOID parameters)
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#
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def memwrite(address, data, length)
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raise "Invalid parameters." if(not address or not data or not length)
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request = Packet.create_request('stdapi_railgun_memwrite')
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request.add_tlv(TLV_TYPE_RAILGUN_MEM_ADDRESS, address)
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request.add_tlv(TLV_TYPE_RAILGUN_MEM_DATA, data)
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request.add_tlv(TLV_TYPE_RAILGUN_MEM_LENGTH, length)
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response = client.send_request(request)
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if(response.result == 0)
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return true
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end
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return false
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end
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#
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# Adds a function to an existing DLL definition.
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#
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# If the DLL definition is frozen (ideally this should be the case for all
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# cached dlls) an unfrozen copy is created and used henceforth for this
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# instance.
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#
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def add_function(dll_name, function_name, return_type, params, windows_name=nil)
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unless known_dll_names.include?(dll_name)
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raise "DLL #{dll_name} not found. Known DLLs: #{PP.pp(known_dll_names, "")}"
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end
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dll = get_dll(dll_name)
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# For backwards compatibility, we ensure the dll is thawed
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if dll.frozen?
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# Duplicate not only the dll, but its functions as well. Frozen status will be lost
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dll = Marshal.load(Marshal.dump(dll))
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# Update local dlls with the modifiable duplicate
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dlls[dll_name] = dll
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end
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dll.add_function(function_name, return_type, params, windows_name)
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end
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#
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# Adds a DLL to this Railgun.
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#
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# The +windows_name+ is the name used on the remote system and should be
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# set appropriately if you want to include a path or the DLL name contains
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# non-ruby-approved characters.
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#
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# Raises an exception if a dll with the given name has already been
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# defined.
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#
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def add_dll(dll_name, windows_name=dll_name)
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if dlls.has_key? dll_name
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raise "A DLL of name #{dll_name} has already been loaded."
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end
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dlls[dll_name] = DLL.new(windows_name, constant_manager)
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end
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def known_dll_names
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return BUILTIN_DLLS | dlls.keys
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end
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#
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# Attempts to provide a DLL instance of the given name. Handles lazy
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# loading and caching. Note that if a DLL of the given name does not
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# exist, returns nil
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#
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def get_dll(dll_name)
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# If the DLL is not local, we now either load it from cache or load it lazily.
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# In either case, a reference to the dll is stored in the collection "dlls"
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# If the DLL can not be found/created, no actions are taken
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unless dlls.has_key? dll_name
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# We read and write to @@cached_dlls and rely on state consistency
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@@cache_semaphore.synchronize do
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if @@cached_dlls.has_key? dll_name
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dlls[dll_name] = @@cached_dlls[dll_name]
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elsif BUILTIN_DLLS.include? dll_name
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# I highly doubt this case will ever occur, but I am paranoid
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if dll_name !~ /^\w+$/
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raise "DLL name #{dll_name} is bad. Correct Railgun::BUILTIN_DLLS"
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end
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require 'rex/post/meterpreter/extensions/stdapi/railgun/def/def_' << dll_name
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dll = Def.const_get('Def_' << dll_name).create_dll.freeze
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@@cached_dlls[dll_name] = dll
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dlls[dll_name] = dll
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end
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end
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end
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return dlls[dll_name]
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end
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#
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# Fake having members like user32 and kernel32.
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# reason is that
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# ...user32.MessageBoxW()
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# is prettier than
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# ...dlls["user32"].functions["MessageBoxW"]()
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#
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def method_missing(dll_symbol, *args)
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dll_name = dll_symbol.to_s
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unless known_dll_names.include? dll_name
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raise "DLL #{dll_name} not found. Known DLLs: #{PP.pp(known_dll_names, '')}"
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end
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dll = get_dll(dll_name)
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return DLLWrapper.new(dll, client)
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end
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#
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# Return a Windows constant matching +str+.
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#
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def const(str)
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return constant_manager.parse(str)
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end
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#
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# The multi-call shorthand (["kernel32", "ExitProcess", [0]])
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#
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def multi(functions)
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if @multicaller.nil?
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@multicaller = MultiCaller.new(client, self)
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end
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return @multicaller.call(functions)
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end
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end
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end; end; end; end; end; end
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# -*- coding: binary -*-
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# Copyright (c) 2010, patrickHVE@googlemail.com
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * The names of the author may not be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
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# DISCLAIMED. IN NO EVENT SHALL patrickHVE@googlemail.com BE LIABLE FOR ANY
|
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# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
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# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# sf - Sept 2010 - Modified for x64 support and merged into the stdapi extension.
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#
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#
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# chao - June 2011 - major overhaul of dll lazy loading, caching, and bit of everything
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#
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require 'pp'
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require 'enumerator'
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require 'rex/post/meterpreter/extensions/stdapi/railgun/api_constants'
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require 'rex/post/meterpreter/extensions/stdapi/railgun/tlv'
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require 'rex/post/meterpreter/extensions/stdapi/railgun/util'
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require 'rex/post/meterpreter/extensions/stdapi/railgun/win_const_manager'
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require 'rex/post/meterpreter/extensions/stdapi/railgun/multicall'
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require 'rex/post/meterpreter/extensions/stdapi/railgun/dll'
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require 'rex/post/meterpreter/extensions/stdapi/railgun/dll_wrapper'
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module Rex
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module Post
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module Meterpreter
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module Extensions
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module Stdapi
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module Railgun
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#
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# The Railgun class to dynamically expose the Windows API.
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#
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class Railgun
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#
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# Railgun::DLL's that have builtin definitions.
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#
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# If you want to add additional DLL definitions to be preloaded create a
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# definition class 'rex/post/meterpreter/extensions/stdapi/railgun/def/'.
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# Naming is important and should follow convention. For example, if your
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# dll's name was "my_dll"
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# file name: def_my_dll.rb
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# class name: Def_my_dll
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# entry below: 'my_dll'
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#
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BUILTIN_DLLS = [
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'kernel32',
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'ntdll',
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'user32',
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'ws2_32',
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'iphlpapi',
|
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'advapi32',
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'shell32',
|
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'netapi32',
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'crypt32',
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'wlanapi',
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'wldap32'
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].freeze
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##
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# Returns a Hash containing DLLs added to this instance with #add_dll
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# as well as references to any frozen cached dlls added directly in #get_dll
|
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# and copies of any frozen dlls (added directly with #add_function)
|
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# that the user attempted to modify with #add_function.
|
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#
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# Keys are friendly DLL names and values are the corresponding DLL instance
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attr_accessor :dlls
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##
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# Contains a reference to the client that corresponds to this instance of railgun
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attr_accessor :client
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##
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# These DLLs are loaded lazily and then shared amongst all railgun instances.
|
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# For safety reasons this variable should only be read/written within #get_dll.
|
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@@cached_dlls = {}
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# if you are going to touch @@cached_dlls, wear protection
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@@cache_semaphore = Mutex.new
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def initialize(client)
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self.client = client
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self.dlls = {}
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end
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def self.builtin_dlls
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BUILTIN_DLLS
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end
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#
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# Return this Railgun's Util instance.
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#
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def util
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if @util.nil?
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@util = Util.new(self, client.platform)
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end
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return @util
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end
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#
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# Return this Railgun's WinConstManager instance, initially populated with
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# constants defined in ApiConstants.
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#
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def constant_manager
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# Loads lazily
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return ApiConstants.manager
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end
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#
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# Read data from a memory address on the host (useful for working with
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# LPVOID parameters)
|
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#
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def memread(address, length)
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raise "Invalid parameters." if(not address or not length)
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request = Packet.create_request('stdapi_railgun_memread')
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request.add_tlv(TLV_TYPE_RAILGUN_MEM_ADDRESS, address)
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request.add_tlv(TLV_TYPE_RAILGUN_MEM_LENGTH, length)
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response = client.send_request(request)
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if(response.result == 0)
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return response.get_tlv_value(TLV_TYPE_RAILGUN_MEM_DATA)
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end
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return nil
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end
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#
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# Write data to a memory address on the host (useful for working with
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# LPVOID parameters)
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#
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def memwrite(address, data, length)
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raise "Invalid parameters." if(not address or not data or not length)
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request = Packet.create_request('stdapi_railgun_memwrite')
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request.add_tlv(TLV_TYPE_RAILGUN_MEM_ADDRESS, address)
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request.add_tlv(TLV_TYPE_RAILGUN_MEM_DATA, data)
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request.add_tlv(TLV_TYPE_RAILGUN_MEM_LENGTH, length)
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response = client.send_request(request)
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if(response.result == 0)
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return true
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end
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return false
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end
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|
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#
|
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# Adds a function to an existing DLL definition.
|
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#
|
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# If the DLL definition is frozen (ideally this should be the case for all
|
||||
# cached dlls) an unfrozen copy is created and used henceforth for this
|
||||
# instance.
|
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#
|
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def add_function(dll_name, function_name, return_type, params, windows_name=nil)
|
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|
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unless known_dll_names.include?(dll_name)
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raise "DLL #{dll_name} not found. Known DLLs: #{PP.pp(known_dll_names, "")}"
|
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end
|
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|
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dll = get_dll(dll_name)
|
||||
|
||||
# For backwards compatibility, we ensure the dll is thawed
|
||||
if dll.frozen?
|
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# Duplicate not only the dll, but its functions as well. Frozen status will be lost
|
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dll = Marshal.load(Marshal.dump(dll))
|
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|
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# Update local dlls with the modifiable duplicate
|
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dlls[dll_name] = dll
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end
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|
||||
dll.add_function(function_name, return_type, params, windows_name)
|
||||
end
|
||||
|
||||
#
|
||||
# Adds a DLL to this Railgun.
|
||||
#
|
||||
# The +windows_name+ is the name used on the remote system and should be
|
||||
# set appropriately if you want to include a path or the DLL name contains
|
||||
# non-ruby-approved characters.
|
||||
#
|
||||
# Raises an exception if a dll with the given name has already been
|
||||
# defined.
|
||||
#
|
||||
def add_dll(dll_name, windows_name=dll_name)
|
||||
|
||||
if dlls.has_key? dll_name
|
||||
raise "A DLL of name #{dll_name} has already been loaded."
|
||||
end
|
||||
|
||||
dlls[dll_name] = DLL.new(windows_name, constant_manager)
|
||||
end
|
||||
|
||||
|
||||
def known_dll_names
|
||||
return BUILTIN_DLLS | dlls.keys
|
||||
end
|
||||
|
||||
#
|
||||
# Attempts to provide a DLL instance of the given name. Handles lazy
|
||||
# loading and caching. Note that if a DLL of the given name does not
|
||||
# exist, returns nil
|
||||
#
|
||||
def get_dll(dll_name)
|
||||
|
||||
# If the DLL is not local, we now either load it from cache or load it lazily.
|
||||
# In either case, a reference to the dll is stored in the collection "dlls"
|
||||
# If the DLL can not be found/created, no actions are taken
|
||||
unless dlls.has_key? dll_name
|
||||
# We read and write to @@cached_dlls and rely on state consistency
|
||||
@@cache_semaphore.synchronize do
|
||||
if @@cached_dlls.has_key? dll_name
|
||||
dlls[dll_name] = @@cached_dlls[dll_name]
|
||||
elsif BUILTIN_DLLS.include? dll_name
|
||||
# I highly doubt this case will ever occur, but I am paranoid
|
||||
if dll_name !~ /^\w+$/
|
||||
raise "DLL name #{dll_name} is bad. Correct Railgun::BUILTIN_DLLS"
|
||||
end
|
||||
|
||||
require 'rex/post/meterpreter/extensions/stdapi/railgun/def/def_' << dll_name
|
||||
dll = Def.const_get('Def_' << dll_name).create_dll.freeze
|
||||
|
||||
@@cached_dlls[dll_name] = dll
|
||||
dlls[dll_name] = dll
|
||||
end
|
||||
end
|
||||
|
||||
end
|
||||
|
||||
return dlls[dll_name]
|
||||
end
|
||||
|
||||
#
|
||||
# Fake having members like user32 and kernel32.
|
||||
# reason is that
|
||||
# ...user32.MessageBoxW()
|
||||
# is prettier than
|
||||
# ...dlls["user32"].functions["MessageBoxW"]()
|
||||
#
|
||||
def method_missing(dll_symbol, *args)
|
||||
dll_name = dll_symbol.to_s
|
||||
|
||||
unless known_dll_names.include? dll_name
|
||||
raise "DLL #{dll_name} not found. Known DLLs: #{PP.pp(known_dll_names, '')}"
|
||||
end
|
||||
|
||||
dll = get_dll(dll_name)
|
||||
|
||||
return DLLWrapper.new(dll, client)
|
||||
end
|
||||
|
||||
#
|
||||
# Return a Windows constant matching +str+.
|
||||
#
|
||||
def const(str)
|
||||
return constant_manager.parse(str)
|
||||
end
|
||||
|
||||
#
|
||||
# The multi-call shorthand (["kernel32", "ExitProcess", [0]])
|
||||
#
|
||||
def multi(functions)
|
||||
if @multicaller.nil?
|
||||
@multicaller = MultiCaller.new(client, self)
|
||||
end
|
||||
|
||||
return @multicaller.call(functions)
|
||||
end
|
||||
end
|
||||
|
||||
end; end; end; end; end; end
|
||||
|
|
Loading…
Reference in New Issue