We need to simply clone it from the github
Smod working
- Once cloned we need to enter into the specific directory and type python smod.py in terminal
- Then, type help you will be shown the options to explore the tools.
- As this tool is written based on metasploit framework it is easy to explore
- Type show modules to display the available modules and options for displaying the types.
- Finally use the use command and select commands to set and exploit the things.
- Exploit to see the coil and holding register value is changes
- This tool can only be use for exploring modbus protocol nad for changing the coils and holding register value
- This tool can be an offense if we try to exploit a real system with out granted permissions.
- For more details refer video
Demo
SMOD >help
Command Description
------- -----------
back Move back from the current context
exit Exit the console
exploit Run module
help Help menu
show Displays modules of a given type, or all modules
set Sets a variable to a value
use Selects a module by name
SMOD >show modules
Modules Description
------- -----------
modbus/dos/arp DOS with Arp Poisoning
modbus/dos/galilRIO DOS Galil RIO-47100
modbus/dos/writeAllCoils DOS With Write All Coils
modbus/dos/writeAllRegister DOS With Write All Register Function
modbus/dos/writeSingleCoils DOS With Write Single Coil Function
modbus/dos/writeSingleRegister DOS Write Single Register Function
modbus/function/fuzzing Fuzzing Modbus Functions
modbus/function/readCoils Fuzzing Read Coils Function
modbus/function/readCoilsException Fuzzing Read Coils Exception Function
modbus/function/readDiscreteInput Fuzzing Read Discrete Inputs Function
modbus/function/readDiscreteInputException Fuzzing Read Discrete Inputs Exception Function
modbus/function/readExceptionStatus Fuzzing Read Exception Status Function
modbus/function/readHoldingRegister Fuzzing Read Holding Registers Function
modbus/function/readHoldingRegisterException Fuzzing Read Holding Registers Exception Function
modbus/function/readInputRegister Fuzzing Read Input Registers Function
modbus/function/readInputRegisterException Fuzzing Read Input Registers Exception Function
modbus/function/writeSingleCoils Fuzzing Write Single Coil Function
modbus/function/writeSingleRegister Fuzzing Write Single Register Function
modbus/scanner/arpWatcher ARP Watcher
modbus/scanner/discover Check Modbus Protocols
modbus/scanner/getfunc Enumeration Function on Modbus
modbus/scanner/uid Brute Force UID
modbus/sniff/arp Arp Poisoning
SMOD >
Brute Force Modbus UID
SMOD >use modbus/scanner/uid
SMOD modbus(uid) >show options
Name Current Setting Required Description
---- --------------- -------- -----------
Function 1 False Function code, Defualt:Read Coils.
Output True False The stdout save in output directory
RHOSTS True The target address range or CIDR identifier
RPORT 502 False The port number for modbus protocol
Threads 1 False The number of concurrent threads
SMOD modbus(uid) >set RHOSTS 192.168.1.6
SMOD modbus(uid) >exploit
[+] Module Brute Force UID Start
[+] Start Brute Force UID on : 192.168.1.6
[+] UID on 192.168.1.6 is : 10
SMOD modbus(uid) >
Enumeration Function on Modbus
SMOD >use modbus/scanner/getfunc
SMOD modbus(getfunc) >show options
Name Current Setting Required Description
---- --------------- -------- -----------
Output True False The stdout save in output directory
RHOSTS True The target address range or CIDR identifier
RPORT 502 False The port number for modbus protocol
Threads 1 False The number of concurrent threads
UID None True Modbus Slave UID.
SMOD modbus(getfunc) >set RHOSTS 192.168.1.6
SMOD modbus(getfunc) >set UID 10
SMOD modbus(getfunc) >exploit
[+] Module Get Function Start
[+] Looking for supported function codes on 192.168.1.6
[+] Function Code 1(Read Coils) is supported.
[+] Function Code 2(Read Discrete Inputs) is supported.
[+] Function Code 3(Read Multiple Holding Registers) is supported.
[+] Function Code 4(Read Input Registers) is supported.
[+] Function Code 5(Write Single Coil) is supported.
[+] Function Code 6(Write Single Holding Register) is supported.
[+] Function Code 7(Read Exception Status) is supported.
[+] Function Code 8(Diagnostic) is supported.
[+] Function Code 15(Write Multiple Coils) is supported.
[+] Function Code 16(Write Multiple Holding Registers) is supported.
[+] Function Code 17(Report Slave ID) is supported.
[+] Function Code 20(Read File Record) is supported.
[+] Function Code 21(Write File Record) is supported.
[+] Function Code 22(Mask Write Register) is supported.
[+] Function Code 23(Read/Write Multiple Registers) is supported.
SMOD modbus(getfunc) >
Fuzzing Read Coils Function
SMOD >use modbus/function/readCoils
SMOD modbus(readCoils) >show options
Name Current Setting Required Description
---- --------------- -------- -----------
Output True False The stdout save in output directory
Quantity 0x0001 True Registers Values.
RHOSTS True The target address range or CIDR identifier
RPORT 502 False The port number for modbus protocol
StartAddr 0x0000 True Start Address.
Threads 1 False The number of concurrent threads
UID None True Modbus Slave UID.
SMOD modbus(readCoils) >set RHOSTS 192.168.1.6
SMOD modbus(readCoils) >set UID 10
SMOD modbus(readCoils) >exploit
[+] Module Read Coils Function Start
[+] Connecting to 192.168.1.6
[+] Response is :
###[ ModbusADU ]###
transId = 0x2
protoId = 0x0
len = 0x4
unitId = 0xa
###[ Read Coils Answer ]###
funcCode = 0x1
byteCount = 1L
coilStatus= [0]
SMOD modbus(readCoils) >