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rpcrt.py
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rpcrt.py
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# Impacket - Collection of Python classes for working with network protocols.
#
# SECUREAUTH LABS. Copyright (C) 2020 SecureAuth Corporation. All rights reserved.
#
# This software is provided under a slightly modified version
# of the Apache Software License. See the accompanying LICENSE file
# for more information.
#
# Description:
# Partial C706.pdf + [MS-RPCE] implementation
#
# Best way to learn how to use these calls is to grab the protocol standard
# so you understand what the call does, and then read the test case located
# at https://github.com/SecureAuthCorp/impacket/tree/master/tests/SMB_RPC
#
# ToDo:
# [ ] Take out all the security provider stuff out of here (e.g. RPC_C_AUTHN_WINNT)
# and put it elsewhere. This will make the coder cleaner and easier to add
# more SSP (e.g. NETLOGON)
#
import logging
import socket
import sys
from binascii import unhexlify
from Cryptodome.Cipher import ARC4
from impacket import ntlm, LOG
from impacket.structure import Structure,pack,unpack
from impacket.krb5 import kerberosv5, gssapi
from impacket.uuid import uuidtup_to_bin, generate, stringver_to_bin, bin_to_uuidtup
from impacket.dcerpc.v5.dtypes import UCHAR, ULONG, USHORT
from impacket.dcerpc.v5.ndr import NDRSTRUCT
from impacket import hresult_errors
from threading import Thread
# MS/RPC Constants
MSRPC_REQUEST = 0x00
MSRPC_PING = 0x01
MSRPC_RESPONSE = 0x02
MSRPC_FAULT = 0x03
MSRPC_WORKING = 0x04
MSRPC_NOCALL = 0x05
MSRPC_REJECT = 0x06
MSRPC_ACK = 0x07
MSRPC_CL_CANCEL = 0x08
MSRPC_FACK = 0x09
MSRPC_CANCELACK = 0x0A
MSRPC_BIND = 0x0B
MSRPC_BINDACK = 0x0C
MSRPC_BINDNAK = 0x0D
MSRPC_ALTERCTX = 0x0E
MSRPC_ALTERCTX_R= 0x0F
MSRPC_AUTH3 = 0x10
MSRPC_SHUTDOWN = 0x11
MSRPC_CO_CANCEL = 0x12
MSRPC_ORPHANED = 0x13
MSRPC_RTS = 0x14
# MS/RPC Packet Flags
PFC_FIRST_FRAG = 0x01
PFC_LAST_FRAG = 0x02
# For PDU types bind, bind_ack, alter_context, and
# alter_context_resp, this flag MUST be interpreted as PFC_SUPPORT_HEADER_SIGN
MSRPC_SUPPORT_SIGN = 0x04
#For the
#remaining PDU types, this flag MUST be interpreted as PFC_PENDING_CANCEL.
MSRPC_PENDING_CANCEL= 0x04
PFC_RESERVED_1 = 0x08
PFC_CONC_MPX = 0x10
PFC_DID_NOT_EXECUTE = 0x20
PFC_MAYBE = 0x40
PFC_OBJECT_UUID = 0x80
# Auth Types - Security Providers
RPC_C_AUTHN_NONE = 0x00
RPC_C_AUTHN_GSS_NEGOTIATE = 0x09
RPC_C_AUTHN_WINNT = 0x0A
RPC_C_AUTHN_GSS_SCHANNEL = 0x0E
RPC_C_AUTHN_GSS_KERBEROS = 0x10
RPC_C_AUTHN_NETLOGON = 0x44
RPC_C_AUTHN_DEFAULT = 0xFF
# Auth Levels
RPC_C_AUTHN_LEVEL_NONE = 1
RPC_C_AUTHN_LEVEL_CONNECT = 2
RPC_C_AUTHN_LEVEL_CALL = 3
RPC_C_AUTHN_LEVEL_PKT = 4
RPC_C_AUTHN_LEVEL_PKT_INTEGRITY = 5
RPC_C_AUTHN_LEVEL_PKT_PRIVACY = 6
#Reasons for rejection of a context element, included in bind_ack result reason
rpc_provider_reason = {
0 : 'reason_not_specified',
1 : 'abstract_syntax_not_supported',
2 : 'proposed_transfer_syntaxes_not_supported',
3 : 'local_limit_exceeded',
4 : 'protocol_version_not_specified',
8 : 'authentication_type_not_recognized',
9 : 'invalid_checksum'
}
MSRPC_CONT_RESULT_ACCEPT = 0
MSRPC_CONT_RESULT_USER_REJECT = 1
MSRPC_CONT_RESULT_PROV_REJECT = 2
#Results of a presentation context negotiation
rpc_cont_def_result = {
0 : 'acceptance',
1 : 'user_rejection',
2 : 'provider_rejection'
}
#status codes, references:
#https://docs.microsoft.com/windows/desktop/Rpc/rpc-return-values
#https://msdn.microsoft.com/library/default.asp?url=/library/en-us/randz/protocol/common_return_values.asp
#winerror.h
#https://www.opengroup.org/onlinepubs/9629399/apdxn.htm
rpc_status_codes = {
0x00000005 : 'rpc_s_access_denied',
0x00000008 : 'Authentication type not recognized',
0x000006D8 : 'rpc_fault_cant_perform',
0x000006C6 : 'rpc_x_invalid_bound', # the arrays bound are invalid
0x000006E4 : 'rpc_s_cannot_support: The requested operation is not supported.', # some operation is not supported
0x000006F7 : 'rpc_x_bad_stub_data', # the stub data is invalid, doesn't match with the IDL definition
0x1C010001 : 'nca_s_comm_failure', # unable to get response from server:
0x1C010002 : 'nca_s_op_rng_error', # bad operation number in call
0x1C010003 : 'nca_s_unk_if', # unknown interface
0x1C010006 : 'nca_s_wrong_boot_time', # client passed server wrong server boot time
0x1C010009 : 'nca_s_you_crashed', # a restarted server called back a client
0x1C01000B : 'nca_s_proto_error', # someone messed up the protocol
0x1C010013 : 'nca_s_out_args_too_big ', # output args too big
0x1C010014 : 'nca_s_server_too_busy', # server is too busy to handle call
0x1C010015 : 'nca_s_fault_string_too_long', # string argument longer than declared max len
0x1C010017 : 'nca_s_unsupported_type ', # no implementation of generic operation for object
0x1C000001 : 'nca_s_fault_int_div_by_zero',
0x1C000002 : 'nca_s_fault_addr_error ',
0x1C000003 : 'nca_s_fault_fp_div_zero',
0x1C000004 : 'nca_s_fault_fp_underflow',
0x1C000005 : 'nca_s_fault_fp_overflow',
0x1C000006 : 'nca_s_fault_invalid_tag',
0x1C000007 : 'nca_s_fault_invalid_bound ',
0x1C000008 : 'nca_s_rpc_version_mismatch',
0x1C000009 : 'nca_s_unspec_reject ',
0x1C00000A : 'nca_s_bad_actid',
0x1C00000B : 'nca_s_who_are_you_failed',
0x1C00000C : 'nca_s_manager_not_entered ',
0x1C00000D : 'nca_s_fault_cancel',
0x1C00000E : 'nca_s_fault_ill_inst',
0x1C00000F : 'nca_s_fault_fp_error',
0x1C000010 : 'nca_s_fault_int_overflow',
0x1C000012 : 'nca_s_fault_unspec',
0x1C000013 : 'nca_s_fault_remote_comm_failure ',
0x1C000014 : 'nca_s_fault_pipe_empty ',
0x1C000015 : 'nca_s_fault_pipe_closed',
0x1C000016 : 'nca_s_fault_pipe_order ',
0x1C000017 : 'nca_s_fault_pipe_discipline',
0x1C000018 : 'nca_s_fault_pipe_comm_error',
0x1C000019 : 'nca_s_fault_pipe_memory',
0x1C00001A : 'nca_s_fault_context_mismatch ',
0x1C00001B : 'nca_s_fault_remote_no_memory ',
0x1C00001C : 'nca_s_invalid_pres_context_id',
0x1C00001D : 'nca_s_unsupported_authn_level',
0x1C00001F : 'nca_s_invalid_checksum ',
0x1C000020 : 'nca_s_invalid_crc',
0x1C000021 : 'nca_s_fault_user_defined',
0x1C000022 : 'nca_s_fault_tx_open_failed',
0x1C000023 : 'nca_s_fault_codeset_conv_error',
0x1C000024 : 'nca_s_fault_object_not_found ',
0x1C000025 : 'nca_s_fault_no_client_stub',
0x16c9a000 : "rpc_s_mod",
0x16c9a001 : "rpc_s_op_rng_error",
0x16c9a002 : "rpc_s_cant_create_socket",
0x16c9a003 : "rpc_s_cant_bind_socket",
0x16c9a004 : "rpc_s_not_in_call",
0x16c9a005 : "rpc_s_no_port",
0x16c9a006 : "rpc_s_wrong_boot_time",
0x16c9a007 : "rpc_s_too_many_sockets",
0x16c9a008 : "rpc_s_illegal_register",
0x16c9a009 : "rpc_s_cant_recv",
0x16c9a00a : "rpc_s_bad_pkt",
0x16c9a00b : "rpc_s_unbound_handle",
0x16c9a00c : "rpc_s_addr_in_use",
0x16c9a00d : "rpc_s_in_args_too_big",
0x16c9a00e : "rpc_s_string_too_long",
0x16c9a00f : "rpc_s_too_many_objects",
0x16c9a010 : "rpc_s_binding_has_no_auth",
0x16c9a011 : "rpc_s_unknown_authn_service",
0x16c9a012 : "rpc_s_no_memory",
0x16c9a013 : "rpc_s_cant_nmalloc",
0x16c9a014 : "rpc_s_call_faulted",
0x16c9a015 : "rpc_s_call_failed",
0x16c9a016 : "rpc_s_comm_failure",
0x16c9a017 : "rpc_s_rpcd_comm_failure",
0x16c9a018 : "rpc_s_illegal_family_rebind",
0x16c9a019 : "rpc_s_invalid_handle",
0x16c9a01a : "rpc_s_coding_error",
0x16c9a01b : "rpc_s_object_not_found",
0x16c9a01c : "rpc_s_cthread_not_found",
0x16c9a01d : "rpc_s_invalid_binding",
0x16c9a01e : "rpc_s_already_registered",
0x16c9a01f : "rpc_s_endpoint_not_found",
0x16c9a020 : "rpc_s_invalid_rpc_protseq",
0x16c9a021 : "rpc_s_desc_not_registered",
0x16c9a022 : "rpc_s_already_listening",
0x16c9a023 : "rpc_s_no_protseqs",
0x16c9a024 : "rpc_s_no_protseqs_registered",
0x16c9a025 : "rpc_s_no_bindings",
0x16c9a026 : "rpc_s_max_descs_exceeded",
0x16c9a027 : "rpc_s_no_interfaces",
0x16c9a028 : "rpc_s_invalid_timeout",
0x16c9a029 : "rpc_s_cant_inq_socket",
0x16c9a02a : "rpc_s_invalid_naf_id",
0x16c9a02b : "rpc_s_inval_net_addr",
0x16c9a02c : "rpc_s_unknown_if",
0x16c9a02d : "rpc_s_unsupported_type",
0x16c9a02e : "rpc_s_invalid_call_opt",
0x16c9a02f : "rpc_s_no_fault",
0x16c9a030 : "rpc_s_cancel_timeout",
0x16c9a031 : "rpc_s_call_cancelled",
0x16c9a032 : "rpc_s_invalid_call_handle",
0x16c9a033 : "rpc_s_cannot_alloc_assoc",
0x16c9a034 : "rpc_s_cannot_connect",
0x16c9a035 : "rpc_s_connection_aborted",
0x16c9a036 : "rpc_s_connection_closed",
0x16c9a037 : "rpc_s_cannot_accept",
0x16c9a038 : "rpc_s_assoc_grp_not_found",
0x16c9a039 : "rpc_s_stub_interface_error",
0x16c9a03a : "rpc_s_invalid_object",
0x16c9a03b : "rpc_s_invalid_type",
0x16c9a03c : "rpc_s_invalid_if_opnum",
0x16c9a03d : "rpc_s_different_server_instance",
0x16c9a03e : "rpc_s_protocol_error",
0x16c9a03f : "rpc_s_cant_recvmsg",
0x16c9a040 : "rpc_s_invalid_string_binding",
0x16c9a041 : "rpc_s_connect_timed_out",
0x16c9a042 : "rpc_s_connect_rejected",
0x16c9a043 : "rpc_s_network_unreachable",
0x16c9a044 : "rpc_s_connect_no_resources",
0x16c9a045 : "rpc_s_rem_network_shutdown",
0x16c9a046 : "rpc_s_too_many_rem_connects",
0x16c9a047 : "rpc_s_no_rem_endpoint",
0x16c9a048 : "rpc_s_rem_host_down",
0x16c9a049 : "rpc_s_host_unreachable",
0x16c9a04a : "rpc_s_access_control_info_inv",
0x16c9a04b : "rpc_s_loc_connect_aborted",
0x16c9a04c : "rpc_s_connect_closed_by_rem",
0x16c9a04d : "rpc_s_rem_host_crashed",
0x16c9a04e : "rpc_s_invalid_endpoint_format",
0x16c9a04f : "rpc_s_unknown_status_code",
0x16c9a050 : "rpc_s_unknown_mgr_type",
0x16c9a051 : "rpc_s_assoc_creation_failed",
0x16c9a052 : "rpc_s_assoc_grp_max_exceeded",
0x16c9a053 : "rpc_s_assoc_grp_alloc_failed",
0x16c9a054 : "rpc_s_sm_invalid_state",
0x16c9a055 : "rpc_s_assoc_req_rejected",
0x16c9a056 : "rpc_s_assoc_shutdown",
0x16c9a057 : "rpc_s_tsyntaxes_unsupported",
0x16c9a058 : "rpc_s_context_id_not_found",
0x16c9a059 : "rpc_s_cant_listen_socket",
0x16c9a05a : "rpc_s_no_addrs",
0x16c9a05b : "rpc_s_cant_getpeername",
0x16c9a05c : "rpc_s_cant_get_if_id",
0x16c9a05d : "rpc_s_protseq_not_supported",
0x16c9a05e : "rpc_s_call_orphaned",
0x16c9a05f : "rpc_s_who_are_you_failed",
0x16c9a060 : "rpc_s_unknown_reject",
0x16c9a061 : "rpc_s_type_already_registered",
0x16c9a062 : "rpc_s_stop_listening_disabled",
0x16c9a063 : "rpc_s_invalid_arg",
0x16c9a064 : "rpc_s_not_supported",
0x16c9a065 : "rpc_s_wrong_kind_of_binding",
0x16c9a066 : "rpc_s_authn_authz_mismatch",
0x16c9a067 : "rpc_s_call_queued",
0x16c9a068 : "rpc_s_cannot_set_nodelay",
0x16c9a069 : "rpc_s_not_rpc_tower",
0x16c9a06a : "rpc_s_invalid_rpc_protid",
0x16c9a06b : "rpc_s_invalid_rpc_floor",
0x16c9a06c : "rpc_s_call_timeout",
0x16c9a06d : "rpc_s_mgmt_op_disallowed",
0x16c9a06e : "rpc_s_manager_not_entered",
0x16c9a06f : "rpc_s_calls_too_large_for_wk_ep",
0x16c9a070 : "rpc_s_server_too_busy",
0x16c9a071 : "rpc_s_prot_version_mismatch",
0x16c9a072 : "rpc_s_rpc_prot_version_mismatch",
0x16c9a073 : "rpc_s_ss_no_import_cursor",
0x16c9a074 : "rpc_s_fault_addr_error",
0x16c9a075 : "rpc_s_fault_context_mismatch",
0x16c9a076 : "rpc_s_fault_fp_div_by_zero",
0x16c9a077 : "rpc_s_fault_fp_error",
0x16c9a078 : "rpc_s_fault_fp_overflow",
0x16c9a079 : "rpc_s_fault_fp_underflow",
0x16c9a07a : "rpc_s_fault_ill_inst",
0x16c9a07b : "rpc_s_fault_int_div_by_zero",
0x16c9a07c : "rpc_s_fault_int_overflow",
0x16c9a07d : "rpc_s_fault_invalid_bound",
0x16c9a07e : "rpc_s_fault_invalid_tag",
0x16c9a07f : "rpc_s_fault_pipe_closed",
0x16c9a080 : "rpc_s_fault_pipe_comm_error",
0x16c9a081 : "rpc_s_fault_pipe_discipline",
0x16c9a082 : "rpc_s_fault_pipe_empty",
0x16c9a083 : "rpc_s_fault_pipe_memory",
0x16c9a084 : "rpc_s_fault_pipe_order",
0x16c9a085 : "rpc_s_fault_remote_comm_failure",
0x16c9a086 : "rpc_s_fault_remote_no_memory",
0x16c9a087 : "rpc_s_fault_unspec",
0x16c9a088 : "uuid_s_bad_version",
0x16c9a089 : "uuid_s_socket_failure",
0x16c9a08a : "uuid_s_getconf_failure",
0x16c9a08b : "uuid_s_no_address",
0x16c9a08c : "uuid_s_overrun",
0x16c9a08d : "uuid_s_internal_error",
0x16c9a08e : "uuid_s_coding_error",
0x16c9a08f : "uuid_s_invalid_string_uuid",
0x16c9a090 : "uuid_s_no_memory",
0x16c9a091 : "rpc_s_no_more_entries",
0x16c9a092 : "rpc_s_unknown_ns_error",
0x16c9a093 : "rpc_s_name_service_unavailable",
0x16c9a094 : "rpc_s_incomplete_name",
0x16c9a095 : "rpc_s_group_not_found",
0x16c9a096 : "rpc_s_invalid_name_syntax",
0x16c9a097 : "rpc_s_no_more_members",
0x16c9a098 : "rpc_s_no_more_interfaces",
0x16c9a099 : "rpc_s_invalid_name_service",
0x16c9a09a : "rpc_s_no_name_mapping",
0x16c9a09b : "rpc_s_profile_not_found",
0x16c9a09c : "rpc_s_not_found",
0x16c9a09d : "rpc_s_no_updates",
0x16c9a09e : "rpc_s_update_failed",
0x16c9a09f : "rpc_s_no_match_exported",
0x16c9a0a0 : "rpc_s_entry_not_found",
0x16c9a0a1 : "rpc_s_invalid_inquiry_context",
0x16c9a0a2 : "rpc_s_interface_not_found",
0x16c9a0a3 : "rpc_s_group_member_not_found",
0x16c9a0a4 : "rpc_s_entry_already_exists",
0x16c9a0a5 : "rpc_s_nsinit_failure",
0x16c9a0a6 : "rpc_s_unsupported_name_syntax",
0x16c9a0a7 : "rpc_s_no_more_elements",
0x16c9a0a8 : "rpc_s_no_ns_permission",
0x16c9a0a9 : "rpc_s_invalid_inquiry_type",
0x16c9a0aa : "rpc_s_profile_element_not_found",
0x16c9a0ab : "rpc_s_profile_element_replaced",
0x16c9a0ac : "rpc_s_import_already_done",
0x16c9a0ad : "rpc_s_database_busy",
0x16c9a0ae : "rpc_s_invalid_import_context",
0x16c9a0af : "rpc_s_uuid_set_not_found",
0x16c9a0b0 : "rpc_s_uuid_member_not_found",
0x16c9a0b1 : "rpc_s_no_interfaces_exported",
0x16c9a0b2 : "rpc_s_tower_set_not_found",
0x16c9a0b3 : "rpc_s_tower_member_not_found",
0x16c9a0b4 : "rpc_s_obj_uuid_not_found",
0x16c9a0b5 : "rpc_s_no_more_bindings",
0x16c9a0b6 : "rpc_s_invalid_priority",
0x16c9a0b7 : "rpc_s_not_rpc_entry",
0x16c9a0b8 : "rpc_s_invalid_lookup_context",
0x16c9a0b9 : "rpc_s_binding_vector_full",
0x16c9a0ba : "rpc_s_cycle_detected",
0x16c9a0bb : "rpc_s_nothing_to_export",
0x16c9a0bc : "rpc_s_nothing_to_unexport",
0x16c9a0bd : "rpc_s_invalid_vers_option",
0x16c9a0be : "rpc_s_no_rpc_data",
0x16c9a0bf : "rpc_s_mbr_picked",
0x16c9a0c0 : "rpc_s_not_all_objs_unexported",
0x16c9a0c1 : "rpc_s_no_entry_name",
0x16c9a0c2 : "rpc_s_priority_group_done",
0x16c9a0c3 : "rpc_s_partial_results",
0x16c9a0c4 : "rpc_s_no_env_setup",
0x16c9a0c5 : "twr_s_unknown_sa",
0x16c9a0c6 : "twr_s_unknown_tower",
0x16c9a0c7 : "twr_s_not_implemented",
0x16c9a0c8 : "rpc_s_max_calls_too_small",
0x16c9a0c9 : "rpc_s_cthread_create_failed",
0x16c9a0ca : "rpc_s_cthread_pool_exists",
0x16c9a0cb : "rpc_s_cthread_no_such_pool",
0x16c9a0cc : "rpc_s_cthread_invoke_disabled",
0x16c9a0cd : "ept_s_cant_perform_op",
0x16c9a0ce : "ept_s_no_memory",
0x16c9a0cf : "ept_s_database_invalid",
0x16c9a0d0 : "ept_s_cant_create",
0x16c9a0d1 : "ept_s_cant_access",
0x16c9a0d2 : "ept_s_database_already_open",
0x16c9a0d3 : "ept_s_invalid_entry",
0x16c9a0d4 : "ept_s_update_failed",
0x16c9a0d5 : "ept_s_invalid_context",
0x16c9a0d6 : "ept_s_not_registered",
0x16c9a0d7 : "ept_s_server_unavailable",
0x16c9a0d8 : "rpc_s_underspecified_name",
0x16c9a0d9 : "rpc_s_invalid_ns_handle",
0x16c9a0da : "rpc_s_unknown_error",
0x16c9a0db : "rpc_s_ss_char_trans_open_fail",
0x16c9a0dc : "rpc_s_ss_char_trans_short_file",
0x16c9a0dd : "rpc_s_ss_context_damaged",
0x16c9a0de : "rpc_s_ss_in_null_context",
0x16c9a0df : "rpc_s_socket_failure",
0x16c9a0e0 : "rpc_s_unsupported_protect_level",
0x16c9a0e1 : "rpc_s_invalid_checksum",
0x16c9a0e2 : "rpc_s_invalid_credentials",
0x16c9a0e3 : "rpc_s_credentials_too_large",
0x16c9a0e4 : "rpc_s_call_id_not_found",
0x16c9a0e5 : "rpc_s_key_id_not_found",
0x16c9a0e6 : "rpc_s_auth_bad_integrity",
0x16c9a0e7 : "rpc_s_auth_tkt_expired",
0x16c9a0e8 : "rpc_s_auth_tkt_nyv",
0x16c9a0e9 : "rpc_s_auth_repeat",
0x16c9a0ea : "rpc_s_auth_not_us",
0x16c9a0eb : "rpc_s_auth_badmatch",
0x16c9a0ec : "rpc_s_auth_skew",
0x16c9a0ed : "rpc_s_auth_badaddr",
0x16c9a0ee : "rpc_s_auth_badversion",
0x16c9a0ef : "rpc_s_auth_msg_type",
0x16c9a0f0 : "rpc_s_auth_modified",
0x16c9a0f1 : "rpc_s_auth_badorder",
0x16c9a0f2 : "rpc_s_auth_badkeyver",
0x16c9a0f3 : "rpc_s_auth_nokey",
0x16c9a0f4 : "rpc_s_auth_mut_fail",
0x16c9a0f5 : "rpc_s_auth_baddirection",
0x16c9a0f6 : "rpc_s_auth_method",
0x16c9a0f7 : "rpc_s_auth_badseq",
0x16c9a0f8 : "rpc_s_auth_inapp_cksum",
0x16c9a0f9 : "rpc_s_auth_field_toolong",
0x16c9a0fa : "rpc_s_invalid_crc",
0x16c9a0fb : "rpc_s_binding_incomplete",
0x16c9a0fc : "rpc_s_key_func_not_allowed",
0x16c9a0fd : "rpc_s_unknown_stub_rtl_if_vers",
0x16c9a0fe : "rpc_s_unknown_ifspec_vers",
0x16c9a0ff : "rpc_s_proto_unsupp_by_auth",
0x16c9a100 : "rpc_s_authn_challenge_malformed",
0x16c9a101 : "rpc_s_protect_level_mismatch",
0x16c9a102 : "rpc_s_no_mepv",
0x16c9a103 : "rpc_s_stub_protocol_error",
0x16c9a104 : "rpc_s_class_version_mismatch",
0x16c9a105 : "rpc_s_helper_not_running",
0x16c9a106 : "rpc_s_helper_short_read",
0x16c9a107 : "rpc_s_helper_catatonic",
0x16c9a108 : "rpc_s_helper_aborted",
0x16c9a109 : "rpc_s_not_in_kernel",
0x16c9a10a : "rpc_s_helper_wrong_user",
0x16c9a10b : "rpc_s_helper_overflow",
0x16c9a10c : "rpc_s_dg_need_way_auth",
0x16c9a10d : "rpc_s_unsupported_auth_subtype",
0x16c9a10e : "rpc_s_wrong_pickle_type",
0x16c9a10f : "rpc_s_not_listening",
0x16c9a110 : "rpc_s_ss_bad_buffer",
0x16c9a111 : "rpc_s_ss_bad_es_action",
0x16c9a112 : "rpc_s_ss_wrong_es_version",
0x16c9a113 : "rpc_s_fault_user_defined",
0x16c9a114 : "rpc_s_ss_incompatible_codesets",
0x16c9a115 : "rpc_s_tx_not_in_transaction",
0x16c9a116 : "rpc_s_tx_open_failed",
0x16c9a117 : "rpc_s_partial_credentials",
0x16c9a118 : "rpc_s_ss_invalid_codeset_tag",
0x16c9a119 : "rpc_s_mgmt_bad_type",
0x16c9a11a : "rpc_s_ss_invalid_char_input",
0x16c9a11b : "rpc_s_ss_short_conv_buffer",
0x16c9a11c : "rpc_s_ss_iconv_error",
0x16c9a11d : "rpc_s_ss_no_compat_codeset",
0x16c9a11e : "rpc_s_ss_no_compat_charsets",
0x16c9a11f : "dce_cs_c_ok",
0x16c9a120 : "dce_cs_c_unknown",
0x16c9a121 : "dce_cs_c_notfound",
0x16c9a122 : "dce_cs_c_cannot_open_file",
0x16c9a123 : "dce_cs_c_cannot_read_file",
0x16c9a124 : "dce_cs_c_cannot_allocate_memory",
0x16c9a125 : "rpc_s_ss_cleanup_failed",
0x16c9a126 : "rpc_svc_desc_general",
0x16c9a127 : "rpc_svc_desc_mutex",
0x16c9a128 : "rpc_svc_desc_xmit",
0x16c9a129 : "rpc_svc_desc_recv",
0x16c9a12a : "rpc_svc_desc_dg_state",
0x16c9a12b : "rpc_svc_desc_cancel",
0x16c9a12c : "rpc_svc_desc_orphan",
0x16c9a12d : "rpc_svc_desc_cn_state",
0x16c9a12e : "rpc_svc_desc_cn_pkt",
0x16c9a12f : "rpc_svc_desc_pkt_quotas",
0x16c9a130 : "rpc_svc_desc_auth",
0x16c9a131 : "rpc_svc_desc_source",
0x16c9a132 : "rpc_svc_desc_stats",
0x16c9a133 : "rpc_svc_desc_mem",
0x16c9a134 : "rpc_svc_desc_mem_type",
0x16c9a135 : "rpc_svc_desc_dg_pktlog",
0x16c9a136 : "rpc_svc_desc_thread_id",
0x16c9a137 : "rpc_svc_desc_timestamp",
0x16c9a138 : "rpc_svc_desc_cn_errors",
0x16c9a139 : "rpc_svc_desc_conv_thread",
0x16c9a13a : "rpc_svc_desc_pid",
0x16c9a13b : "rpc_svc_desc_atfork",
0x16c9a13c : "rpc_svc_desc_cma_thread",
0x16c9a13d : "rpc_svc_desc_inherit",
0x16c9a13e : "rpc_svc_desc_dg_sockets",
0x16c9a13f : "rpc_svc_desc_timer",
0x16c9a140 : "rpc_svc_desc_threads",
0x16c9a141 : "rpc_svc_desc_server_call",
0x16c9a142 : "rpc_svc_desc_nsi",
0x16c9a143 : "rpc_svc_desc_dg_pkt",
0x16c9a144 : "rpc_m_cn_ill_state_trans_sa",
0x16c9a145 : "rpc_m_cn_ill_state_trans_ca",
0x16c9a146 : "rpc_m_cn_ill_state_trans_sg",
0x16c9a147 : "rpc_m_cn_ill_state_trans_cg",
0x16c9a148 : "rpc_m_cn_ill_state_trans_sr",
0x16c9a149 : "rpc_m_cn_ill_state_trans_cr",
0x16c9a14a : "rpc_m_bad_pkt_type",
0x16c9a14b : "rpc_m_prot_mismatch",
0x16c9a14c : "rpc_m_frag_toobig",
0x16c9a14d : "rpc_m_unsupp_stub_rtl_if",
0x16c9a14e : "rpc_m_unhandled_callstate",
0x16c9a14f : "rpc_m_call_failed",
0x16c9a150 : "rpc_m_call_failed_no_status",
0x16c9a151 : "rpc_m_call_failed_errno",
0x16c9a152 : "rpc_m_call_failed_s",
0x16c9a153 : "rpc_m_call_failed_c",
0x16c9a154 : "rpc_m_errmsg_toobig",
0x16c9a155 : "rpc_m_invalid_srchattr",
0x16c9a156 : "rpc_m_nts_not_found",
0x16c9a157 : "rpc_m_invalid_accbytcnt",
0x16c9a158 : "rpc_m_pre_v2_ifspec",
0x16c9a159 : "rpc_m_unk_ifspec",
0x16c9a15a : "rpc_m_recvbuf_toosmall",
0x16c9a15b : "rpc_m_unalign_authtrl",
0x16c9a15c : "rpc_m_unexpected_exc",
0x16c9a15d : "rpc_m_no_stub_data",
0x16c9a15e : "rpc_m_eventlist_full",
0x16c9a15f : "rpc_m_unk_sock_type",
0x16c9a160 : "rpc_m_unimp_call",
0x16c9a161 : "rpc_m_invalid_seqnum",
0x16c9a162 : "rpc_m_cant_create_uuid",
0x16c9a163 : "rpc_m_pre_v2_ss",
0x16c9a164 : "rpc_m_dgpkt_pool_corrupt",
0x16c9a165 : "rpc_m_dgpkt_bad_free",
0x16c9a166 : "rpc_m_lookaside_corrupt",
0x16c9a167 : "rpc_m_alloc_fail",
0x16c9a168 : "rpc_m_realloc_fail",
0x16c9a169 : "rpc_m_cant_open_file",
0x16c9a16a : "rpc_m_cant_read_addr",
0x16c9a16b : "rpc_svc_desc_libidl",
0x16c9a16c : "rpc_m_ctxrundown_nomem",
0x16c9a16d : "rpc_m_ctxrundown_exc",
0x16c9a16e : "rpc_s_fault_codeset_conv_error",
0x16c9a16f : "rpc_s_no_call_active",
0x16c9a170 : "rpc_s_cannot_support",
0x16c9a171 : "rpc_s_no_context_available",
}
class DCERPCException(Exception):
"""
This is the exception every client should catch regardless of the underlying
DCERPC Transport used.
"""
def __init__(self, error_string=None, error_code=None, packet=None):
"""
:param string error_string: A string you want to show explaining the exception. Otherwise the default ones will be used
:param integer error_code: the error_code if we're using a dictionary with error's descriptions
:param NDR packet: if successfully decoded, the NDR packet of the response call. This could probably have useful
information
"""
Exception.__init__(self)
self.packet = packet
self.error_string = error_string
if packet is not None:
try:
self.error_code = packet['ErrorCode']
except:
self.error_code = error_code
else:
self.error_code = error_code
def get_error_code( self ):
return self.error_code
def get_packet( self ):
return self.packet
def __str__( self ):
key = self.error_code
if self.error_string is not None:
return self.error_string
if key in rpc_status_codes:
error_msg_short = rpc_status_codes[key]
return 'DCERPC Runtime Error: code: 0x%x - %s ' % (self.error_code, error_msg_short)
else:
return 'DCERPC Runtime Error: unknown error code: 0x%x' % self.error_code
# Context Item
class CtxItem(Structure):
structure = (
('ContextID','<H=0'),
('TransItems','B=0'),
('Pad','B=0'),
('AbstractSyntax','20s=""'),
('TransferSyntax','20s=""'),
)
class CtxItemResult(Structure):
structure = (
('Result','<H=0'),
('Reason','<H=0'),
('TransferSyntax','20s=""'),
)
class SEC_TRAILER(Structure):
commonHdr = (
('auth_type', 'B=10'),
('auth_level','B=0'),
('auth_pad_len','B=0'),
('auth_rsvrd','B=0'),
('auth_ctx_id','<L=747920'),
)
class MSRPCHeader(Structure):
_SIZE = 16
commonHdr = (
('ver_major','B=5'), # 0
('ver_minor','B=0'), # 1
('type','B=0'), # 2
('flags','B=0'), # 3
('representation','<L=0x10'), # 4
('frag_len','<H=self._SIZE+len(auth_data)+(16 if (self["flags"] & 0x80) > 0 else 0)+len(pduData)+len(pad)+len(sec_trailer)'), # 8
('auth_len','<H=len(auth_data)'), # 10
('call_id','<L=1'), # 12 <-- Common up to here (including this)
)
structure = (
('dataLen','_-pduData','self["frag_len"]-self["auth_len"]-self._SIZE-(8 if self["auth_len"] > 0 else 0)'),
('pduData',':'),
('_pad', '_-pad','(4 - ((self._SIZE + (16 if (self["flags"] & 0x80) > 0 else 0) + len(self["pduData"])) & 3) & 3)'),
('pad', ':'),
('_sec_trailer', '_-sec_trailer', '8 if self["auth_len"] > 0 else 0'),
('sec_trailer',':'),
('auth_dataLen','_-auth_data','self["auth_len"]'),
('auth_data',':'),
)
def __init__(self, data = None, alignment = 0):
Structure.__init__(self,data, alignment)
if data is None:
self['ver_major'] = 5
self['ver_minor'] = 0
self['flags'] = PFC_FIRST_FRAG | PFC_LAST_FRAG
self['type'] = MSRPC_REQUEST
self.__frag_len_set = 0
self['auth_len'] = 0
self['pduData'] = b''
self['auth_data'] = b''
self['sec_trailer'] = b''
self['pad'] = b''
def get_header_size(self):
return self._SIZE + (16 if (self["flags"] & PFC_OBJECT_UUID) > 0 else 0)
def get_packet(self):
if self['auth_data'] != b'':
self['auth_len'] = len(self['auth_data'])
# The sec_trailer structure MUST be 4-byte aligned with respect to
# the beginning of the PDU. Padding octets MUST be used to align the
# sec_trailer structure if its natural beginning is not already 4-byte aligned
##self['pad'] = '\xAA' * (4 - ((self._SIZE + len(self['pduData'])) & 3) & 3)
return self.getData()
class MSRPCRequestHeader(MSRPCHeader):
_SIZE = 24
commonHdr = MSRPCHeader.commonHdr + (
('alloc_hint','<L=0'), # 16
('ctx_id','<H=0'), # 20
('op_num','<H=0'), # 22
('_uuid','_-uuid','16 if self["flags"] & 0x80 > 0 else 0' ), # 22
('uuid',':'), # 22
)
def __init__(self, data = None, alignment = 0):
MSRPCHeader.__init__(self, data, alignment)
if data is None:
self['type'] = MSRPC_REQUEST
self['ctx_id'] = 0
self['uuid'] = b''
class MSRPCRespHeader(MSRPCHeader):
_SIZE = 24
commonHdr = MSRPCHeader.commonHdr + (
('alloc_hint','<L=0'), # 16
('ctx_id','<H=0'), # 20
('cancel_count','<B=0'), # 22
('padding','<B=0'), # 23
)
def __init__(self, aBuffer = None, alignment = 0):
MSRPCHeader.__init__(self, aBuffer, alignment)
if aBuffer is None:
self['type'] = MSRPC_RESPONSE
self['ctx_id'] = 0
class MSRPCBind(Structure):
_CTX_ITEM_LEN = len(CtxItem())
structure = (
('max_tfrag','<H=4280'),
('max_rfrag','<H=4280'),
('assoc_group','<L=0'),
('ctx_num','B=0'),
('Reserved','B=0'),
('Reserved2','<H=0'),
('_ctx_items', '_-ctx_items', 'self["ctx_num"]*self._CTX_ITEM_LEN'),
('ctx_items',':'),
)
def __init__(self, data = None, alignment = 0):
Structure.__init__(self, data, alignment)
if data is None:
self['max_tfrag'] = 4280
self['max_rfrag'] = 4280
self['assoc_group'] = 0
self['ctx_num'] = 1
self['ctx_items'] = b''
self.__ctx_items = []
def addCtxItem(self, item):
self.__ctx_items.append(item)
def getData(self):
self['ctx_num'] = len(self.__ctx_items)
for i in self.__ctx_items:
self['ctx_items'] += i.getData()
return Structure.getData(self)
class MSRPCBindAck(MSRPCHeader):
_SIZE = 26 # Up to SecondaryAddr
_CTX_ITEM_LEN = len(CtxItemResult())
structure = (
('max_tfrag','<H=0'),
('max_rfrag','<H=0'),
('assoc_group','<L=0'),
('SecondaryAddrLen','<H&SecondaryAddr'),
('SecondaryAddr','z'), # Optional if SecondaryAddrLen == 0
('PadLen','_-Pad','(4-((self["SecondaryAddrLen"]+self._SIZE) % 4))%4'),
('Pad',':'),
('ctx_num','B=0'),
('Reserved','B=0'),
('Reserved2','<H=0'),
('_ctx_items','_-ctx_items','self["ctx_num"]*self._CTX_ITEM_LEN'),
('ctx_items',':'),
('_sec_trailer', '_-sec_trailer', '8 if self["auth_len"] > 0 else 0'),
('sec_trailer',':'),
('auth_dataLen','_-auth_data','self["auth_len"]'),
('auth_data',':'),
)
def __init__(self, data = None, alignment = 0):
self.__ctx_items = []
MSRPCHeader.__init__(self,data,alignment)
if data is None:
self['Pad'] = b''
self['ctx_items'] = b''
self['sec_trailer'] = b''
self['auth_data'] = b''
def getCtxItems(self):
return self.__ctx_items
def getCtxItem(self,index):
return self.__ctx_items[index-1]
def fromString(self, data):
Structure.fromString(self,data)
# Parse the ctx_items
data = self['ctx_items']
for i in range(self['ctx_num']):
item = CtxItemResult(data)
self.__ctx_items.append(item)
data = data[len(item):]
class MSRPCBindNak(Structure):
structure = (
('RejectedReason','<H=0'),
('SupportedVersions',':'),
)
def __init__(self, data = None, alignment = 0):
Structure.__init__(self,data,alignment)
if data is None:
self['SupportedVersions'] = b''
class DCERPC:
# Standard NDR Representation
NDRSyntax = uuidtup_to_bin(('8a885d04-1ceb-11c9-9fe8-08002b104860', '2.0'))
# NDR 64
NDR64Syntax = uuidtup_to_bin(('71710533-BEBA-4937-8319-B5DBEF9CCC36', '1.0'))
transfer_syntax = NDRSyntax
def __init__(self,transport):
self._transport = transport
self.set_ctx_id(0)
self._max_user_frag = None
self.set_default_max_fragment_size()
self._ctx = None
def get_rpc_transport(self):
return self._transport
def set_ctx_id(self, ctx_id):
self._ctx = ctx_id
def connect(self):
return self._transport.connect()
def disconnect(self):
return self._transport.disconnect()
def set_max_fragment_size(self, fragment_size):
# -1 is default fragment size: 0 for v5, 1300 y pico for v4
# 0 is don't fragment
# other values are max fragment size
if fragment_size == -1:
self.set_default_max_fragment_size()
else:
self._max_user_frag = fragment_size
def set_default_max_fragment_size(self):
# default is 0: don'fragment. v4 will override this method
self._max_user_frag = 0
def send(self, data):
raise RuntimeError ('virtual method. Not implemented in subclass')
def recv(self):
raise RuntimeError ('virtual method. Not implemented in subclass')
def alter_ctx(self, newUID, bogus_binds=''):
raise RuntimeError ('virtual method. Not implemented in subclass')
def set_credentials(self, username, password, domain='', lmhash='', nthash='', aesKey='', TGT=None, TGS=None):
pass
def set_auth_level(self, auth_level):
pass
def set_auth_type(self, auth_type, callback=None):
pass
def get_idempotent(self):
return 0
def set_idempotent(self, flag):
pass
def call(self, function, body, uuid=None):
if hasattr(body, 'getData'):
return self.send(DCERPC_RawCall(function, body.getData(), uuid))
else:
return self.send(DCERPC_RawCall(function, body, uuid))
def request(self, request, uuid=None, checkError=True):
if self.transfer_syntax == self.NDR64Syntax:
request.changeTransferSyntax(self.NDR64Syntax)
isNDR64 = True
else:
isNDR64 = False
self.call(request.opnum, request, uuid)
answer = self.recv()
__import__(request.__module__)
module = sys.modules[request.__module__]
respClass = getattr(module, request.__class__.__name__ + 'Response')
if answer[-4:] != b'\x00\x00\x00\x00' and checkError is True:
error_code = unpack('<L', answer[-4:])[0]
if error_code in rpc_status_codes:
# This is an error we can handle
exception = DCERPCException(error_code = error_code)
else:
sessionErrorClass = getattr(module, 'DCERPCSessionError')
try:
# Try to unpack the answer, even if it is an error, it works most of the times
response = respClass(answer, isNDR64 = isNDR64)
except:
# No luck :(
exception = sessionErrorClass(error_code = error_code)
else:
exception = sessionErrorClass(packet = response, error_code = error_code)
raise exception
else:
response = respClass(answer, isNDR64 = isNDR64)
return response
class DCERPC_v4(DCERPC):
pass
class DCERPC_v5(DCERPC):
def __init__(self, transport):
DCERPC.__init__(self, transport)
self.__auth_level = RPC_C_AUTHN_LEVEL_NONE
self.__auth_type = RPC_C_AUTHN_WINNT
self.__auth_type_callback = None
# Flags of the authenticated session. We will need them throughout the connection
self.__auth_flags = 0
self.__username = None
self.__password = None
self.__domain = ''
self.__lmhash = ''
self.__nthash = ''
self.__aesKey = ''
self.__TGT = None
self.__TGS = None
self.__clientSigningKey = b''
self.__serverSigningKey = b''
self.__clientSealingKey = b''
self.__clientSealingHandle = b''
self.__serverSealingKey = b''
self.__serverSealingHandle = b''
self.__sequence = 0
self.transfer_syntax = uuidtup_to_bin(('8a885d04-1ceb-11c9-9fe8-08002b104860', '2.0'))
self.__callid = 1
self._ctx = 0
self.__sessionKey = None
self.__max_xmit_size = 0
self.__flags = 0
self.__cipher = None
self.__confounder = b''
self.__gss = None
def set_session_key(self, session_key):
self.__sessionKey = session_key
def get_session_key(self):
return self.__sessionKey
def set_auth_level(self, auth_level):
self.__auth_level = auth_level
def set_auth_type(self, auth_type, callback = None):
self.__auth_type = auth_type
self.__auth_type_callback = callback
def get_auth_type(self):
return self.__auth_type
def set_max_tfrag(self, size):
self.__max_xmit_size = size
def get_credentials(self):
return self.__username, self.__password, self.__domain, self.__lmhash, self.__nthash, self.__aesKey, self.__TGT, self.__TGS
def set_credentials(self, username, password, domain = '', lmhash = '', nthash = '', aesKey = '', TGT = None, TGS = None):
self.set_auth_level(RPC_C_AUTHN_LEVEL_CONNECT)
self.__username = username
self.__password = password
self.__domain = domain
self.__aesKey = aesKey
self.__TGT = TGT
self.__TGS = TGS
if lmhash != '' or nthash != '':
if len(lmhash) % 2:
lmhash = '0%s' % lmhash
if len(nthash) % 2:
nthash = '0%s' % nthash
try: # just in case they were converted already
self.__lmhash = unhexlify(lmhash)
self.__nthash = unhexlify(nthash)
except:
self.__lmhash = lmhash
self.__nthash = nthash
pass
def bind(self, iface_uuid, alter = 0, bogus_binds = 0, transfer_syntax = ('8a885d04-1ceb-11c9-9fe8-08002b104860', '2.0')):
bind = MSRPCBind()
#item['TransferSyntax']['Version'] = 1
ctx = self._ctx
for i in range(bogus_binds):
item = CtxItem()
item['ContextID'] = ctx
item['TransItems'] = 1
item['ContextID'] = ctx
# We generate random UUIDs for bogus binds
item['AbstractSyntax'] = generate() + stringver_to_bin('2.0')
item['TransferSyntax'] = uuidtup_to_bin(transfer_syntax)
bind.addCtxItem(item)
self._ctx += 1
ctx += 1
# The true one :)
item = CtxItem()
item['AbstractSyntax'] = iface_uuid
item['TransferSyntax'] = uuidtup_to_bin(transfer_syntax)
item['ContextID'] = ctx
item['TransItems'] = 1
bind.addCtxItem(item)
packet = MSRPCHeader()
packet['type'] = MSRPC_BIND
packet['pduData'] = bind.getData()
packet['call_id'] = self.__callid
if alter:
packet['type'] = MSRPC_ALTERCTX
if self.__auth_level != RPC_C_AUTHN_LEVEL_NONE:
if (self.__username is None) or (self.__password is None):
self.__username, self.__password, self.__domain, self.__lmhash, self.__nthash, self.__aesKey, self.__TGT, self.__TGS = self._transport.get_credentials()