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Dockerized Canarytokens

by Thinkst Applied Research

Overview

Canarytokens help track activity and actions on your network.

If you have any issues please check out our FAQ over here, or create an issue and we'll try to get back to you as soon as possible.

Prerequisites

  • At least one domain name. If you want to enable PDF-opening tracking, at least two domains.
  • Internet-facing Docker host. You can install Docker on a Linux host quickly.

What's new?

We are going to track some new features/additions here so that it is quick and easy to see what has been recently added.

  • we now have the capability of sending error logs to a webhook of your choice, hopefully alerting you or your team to the failures as opposed to these errors only living in a log file. Simply supply the corresponding webhook URI in the ERROR_LOG_WEBHOOK value in your switchboard.env file. (2021-04-09)

  • we've renamed the distributed .env files to switchboard.env.dist and frontend.env.dist. This ensures that your local configuration doesn't get blown away when you pull changes from the repo. (We still use switchboard.env and frontend.env for the config, it just means that new clones of the repo require the users to copy/rename the dist files)

  • we have added an extra switchboard.env called CANARY_IPINFO_API_KEY. This allows you to use your ipinfo.io API key if you want to (keep in mind ipinfo.io does have a free tier of up to 1000 requests a day).

  • we now have slack support. When you supply a webhook, you simply supply your slack webhook URL. (Thanks to @shortstack).

  • we have added a new environment variable to frontend.env called CANARY_AWSID_URL which allows you to specify a private or different URL for the AWS ID token. This means you can easily change between accounts. (2018-10-17)

  • if you intend to build the image to be run on another system with different architecture, you can build the images with docker-compose build --build-arg ARCH=<target arch>/, noting the forward slash at the end of the argument. The image will not build correctly if this is not included.

Setup (in Ubuntu)

  • Boot your Docker host, and take note of the public IP.
  • Configure your domains so that their nameservers point to the public IP of the Docker host. This requires a change at your Registrar. Simply changing NS records in the zone file is insufficient. You will need an A record of your domain pointing towards your public IP.
  • Clone the Docker setup:
$ git clone https://github.com/thinkst/canarytokens-docker
$ cd canarytokens-docker
  • Install Docker compose (if not already present):
$ sudo apt-get install python-pip python-dev
$ sudo pip install -U docker-compose
#if this breaks with PyYAML errors, install the libyaml development package
# sudo apt-get install libyaml-dev
  • We distribute two .env files that will be used for configuration, namely switchboard.env.dist and frontend.env.dist. You'll need to copy/rename them to switchboard.env and frontend.env respectively (this ensures that your configuration doesn't get blown away if you pull changes). Once that is done, you can edit them:
  1. Set the CANARY_PUBLIC_IP in both configurations to the same public IP used for the external public IP for switchboard which handles the Canarytoken triggers.

  2. Set the values for CANARY_DOMAINS in frontend.env. These must be domains you own because you will need to add an A record to each CANARY_DOMAINS specified pointing the domain towards your docker's public IP.

  3. [NOTE: This step is only necessary if you want to use PDF tokens] Set the values for CANARY_NXDOMAINS in frontend.env. These must be domains you own because you will need to add an NS record to each CANARY_NXDOMAINS specified pointing the domain towards your previously specified CANARY_DOMAINS.

  4. Uncomment 'CANARY_PUBLIC_DOMAIN' in switchboard.env and set it to one of the domains defined for CANARY_DOMAINS in frontend.env(if you do not uncomment and set it, the Public IP will be used).

  5. Next decide on which email provider you want to use to send alerts. If you are using Mailgun to send emails, uncomment CANARY_MAILGUN_DOMAIN_NAME and CANARY_MAILGUN_API_KEY from switchboard.env and set the values. If you are using Mandrill or Sendgrid instead, uncomment the appropriate API key setting and set it. If using Mailgun's European infrastructure for your Canarytokens Server, you will need to add CANARY_MAILGUN_BASE_URL=https://api.eu.mailgun.net to your switchboard.env.

  6. Generate a single unique WireGuard key seed to set as CANARY_WG_PRIVATE_KEY_SEED in both switchboard.env and frontend.env with the command:

dd bs=32 count=1 if=/dev/urandom 2>/dev/null | base64
  • Here are example files for a setup that uses:
    • the domains example1.com, example2.com, and example3.com (PDFs) for canarytoken triggers via switchboard

    • the public IP 1.1.1.1 for the switchboard triggers

    • the domain 'my.domain' to serve the frontend

    • the Mailgun Domain Name 'x.y' and API Key 'zzzzzzzzzz'

    • the WireGuard key seed vk/GD+frlhve/hDTTSUvqpQ/WsQtioKAri0Rt5mg7dw=

    • frontend.env

#These domains are used for general purpose tokens
CANARY_DOMAINS=example1.com,example2.com

#These domains are only used for PDF tokens
CANARY_NXDOMAINS=example3.com

#Requires a Google Cloud API key to generate an incident map on the history page with the Maps JavaScript API
#CANARY_GOOGLE_API_KEY=
CANARY_PUBLIC_IP=1.1.1.1
CANARY_WG_PRIVATE_KEY_SEED=vk/GD+frlhve/hDTTSUvqpQ/WsQtioKAri0Rt5mg7dw=

  • switchboard.env (Example using Mailgun for email)
CANARY_MAILGUN_DOMAIN_NAME=x.y
CANARY_MAILGUN_API_KEY=zzzzzzzzzz
#CANARY_MANDRILL_API_KEY=
#CANARY_SENDGRID_API_KEY=
CANARY_PUBLIC_IP=1.1.1.1
CANARY_PUBLIC_DOMAIN=my.domain
CANARY_ALERT_EMAIL_FROM_ADDRESS=noreply@example.com
CANARY_ALERT_EMAIL_FROM_DISPLAY="Example Canarytokens"
CANARY_ALERT_EMAIL_SUBJECT="Canarytoken"
CANARY_WG_PRIVATE_KEY_SEED=vk/GD+frlhve/hDTTSUvqpQ/WsQtioKAri0Rt5mg7dw=
  • Finally, download and initiate the images:
$ docker-compose up
  • The front end and switchboard will now be running in the foreground. The front end is accessible at http://example1.com/generate. If you wish to run this in the background, you may use
$ docker-compose up -d

NOTE: If you only own one domain, and would like to use pdf tokens, you can use subdomains for CANARY_NXDOMAINS. Using example.com as our domain, you can set CANARY_NXDOMAINS to nx.example.com. Then log into your DNS manager console (where you can edit your domain DNS records) and add an NS record of nx.example.com mapping to example.com.

Persisting data

The tokens are saved in a Redis database file that exists outside of the Docker containers. Look for dump.rdb in the canarytokens-docker/data directory.

If you want to wipe all your tokens, delete dump.rdb.

I want HTTPS!

We have a separate docker-compose file that will automate (mostly) getting you up and running a Canarytokens server with HTTPS. You will need to do the following:

  • Edit the certbot.env. You will need to provide your domain and email address (these are necessary for the certbot's registration process). E.g.
# Specify a single domain name
MY_DOMAIN_NAME=example.com

# or multiple domains names with this different key (comment out MY_DOMAIN_NAME above if you do):
# MY_DOMAIN_NAMES=example.com anotherexample.net thirdexample.org

EMAIL_ADDRESS=jay@example.com
  • Now when you want to bring up your server, you will use docker-compose -f docker-compose-letsencrypt.yml up which will run the server in the foreground so you can make sure everything gets started alright.

  • If everything is running, you may want to CTRL+C, run docker-compose -f docker-compose-letsencrypt.yml down to get to a clean slate, and then rerun docker-compose -f docker-compose-letsencrypt.yml up -d with the added -d to run the server in the background (in daemon mode)

  • Please keep in mind that using the HTTPS method will use the email you specified and the domain name to register the certificate. You can read about the let's encrypt process (using cerbot) over here. The process involves verifying that you are the owner of the domain you have specified and registering you with let's encrypt.

  • THERE IS A RATE LIMIT. So don't keep bringing this server up and down otherwise you will quickly hit a let's encrypt certificate generation limit. To avoid this, for testing purposes you may add --staging to the ./certbot-auto command in cerbot-nginx/start.sh which will test whether let's encrypt gives you the certificate.

Enabling Basic Auth to your Canarytokens Site

You may follow these steps if you wish to have a public-facing canarytokens site but would like some basic auth to access it.

  1. git clone https://github.com/thinkst/canarytokens-docker.git
  2. cd canarytokens-docker/nginx or if you plan on using HTTPS, cd canarytokens-docker/certbot-nginx
  3. sudo htpasswd -c .htpasswd user where user can be any username you would like to use.
  4. sudo chown <user>:<user> .htpasswd where user is the local linux user
  5. edit the appropriate nginx.conf and
server {
    ...
    location ~* (/generate|/manage|/download|/history|/settings|/resources|/legal).* {
        auth_basic           "Basic Auth Restricted Canrytokens"; <---- ADD
        auth_basic_user_file /etc/nginx/.htpasswd;                 <---- ADD
  1. edit the appropriate Dockerfile and add below COPY nginx.conf ...
COPY .htpasswd /etc/nginx/.htpasswd
  1. rebuild the images using docker-compose build, restart your docker containers, and enjoy!

Thanks, @mamisano for catching a silly issue using the above 🙏

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Docker configuration to quickly setup your own Canarytokens.

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