:white_check_mark: Automate your key and secret validation workflows
:cowboy_hat_face: Over 30 different providers
:robot: Export to JSON, audit via CSV

:key: Keyscope

Keyscope is a key and secret workflow (validation, invalidation, etc.) tool built in Rust, powered by service_policy_kit.

Current workflows supported:

• Validation

🦀 Why Rust?

• With Rust, "If it compiles, it works." and also, it compiles to many platforms.
• Rust is fast, has no VM, or unnecessary cruft (typically 5-8mb binaries with LOTS of code and libraries).
• Multi purpose, safe, and generalistic - makes for healthy and expressive mission critical code. Adding code or abstraction doesn't increase bloat, doesn't hurt performance, doesn't increase chance for bugs in a radical way (less edge cases).
• Amazing package manager: Cargo. Productive installing and running of tasks and examples.
• Rust is getting headlines in the security community as the go-to language for security tools. Equally interesting is offensive security + Rust here and here.

:rocket: Quick Start

Grab a release from releases, or install via Homebrew:

brew tap spectralops/tap && brew install keyscope

Using keyscope

You can try out validating a key for a provider, say, Github (assuming the key is in the GITHUB_TOKEN environment variable):

$ keyscope validate github $GITHUB_TOKEN

You can see which other providers are supported by running:

$ keyscope validate --list

  .
  :
  .

twilio:validation
keyscope validate twilio -p twilio_1 twilio_2

twitter:validation
keyscope validate twitter -p twitter_1

zendesk:validation
keyscope validate zendesk -p zendesk_1 zendesk_2

Total 44 providers available.
$

And what parameters are required for a certain provider by running (say, stripe):

$ keyscope validate stripe --requirements

provider stripe requires:
 - param: p1
   desc: stripe key
$

Finally the general structure of the validate command is:

$ keyscope validate PROVIDER -p PARAM1 PARAM2 .. PARAM_N

:white_check_mark: Validation: key should be active

You can validate a specific provider like so:

$ keyscope validate twilio -p $TWILIO_KEY

With the general pattern of:

$ keyscope validate PROVIDER -p PARAM1 PARAM2 ...

The number of keys/params would change based on authentication type:

• Bearer - usually just a single key (token)
• Basic Auth - usually 2 keys: user, password
• OAuth - usually 2 keys: client_id, client_secret
• And others.

Each provider in Keyscope will tell you what it requires using requirements:

$ keyscope validate twilio --requirements

You'll get a report:

$ keyscope --verbose validate stripe -p $STRIPE_KEY

✔ stripe:validation: ok 766ms

Ran 1 interactions with 1 checks in 766ms

Success: 1
Failure: 0
  Error: 0
Skipped: 0

And an executable exit code that reflects success/failure.

You can use the --verbose flag to see API responses:

$ keyscope --verbose validate stripe -p $STRIPE_KEY

✗ stripe:validation: failed 413ms
      status_code: 200 != 401 Unauthorized

Ran 1 interactions with 1 checks in 413ms

Success: 0
Failure: 1
  Error: 0
Skipped: 0

In this case the exit code is 1 (failure).

:x: Validation: key should be inactive

When you are validating keys that are supposed to be inactive, you can use the flip flag. In this mode, a failed API access is a good thing, and the exit code will reflect that.

$ keyscope --flip validate stripe -p $STRIPE_KEY

✔ stripe:validation: ok 766ms

Ran 1 interactions with 1 checks in 766ms

In this case, the key is active - which is bad for us. Using --flip, the exit code will be 1 (failure).

:runner: Setting up a validation job

Audit active keys

You can set up a CI job (or other form of scheduled job you like) to perform an audit, by reading all parameters from a dedicated CSV file like so:

$ keyscope validate --csv-in report.csv

The format of the CSV that you need to prepare should include a header line and look like this:

provider,key1,key2,key3
twilio,tw-key1,,,

You can specify as many key columns as you like, as long as you provide an empty value for providers which don't have that many keys, and all rows contain the same amount of cells.

Audit inactive keys

If you have a dump of keys from your vault that are stale have expiry and should have been rotated, you want to test that they are all stale:

$ keyscope --flip validate --csv-in my-key-audit.csv

:link: Supported providers

We're always adding new providers, keep a link to this list or watch this repo to get updated.

We use our service_policy_kit library to specify interactions with services and their policies, if you find a service not in this list feel free to open an issue or contribute back.

keyscope validate tester -p TESTER_1 TESTER_2

keyscope validate infura -p INFURA_1

keyscope validate covalenthq -p COVALENTHQ_1

keyscope validate asana -p ASANA_1

keyscope validate bitly -p BITLY_1

keyscope validate ipstack -p IPSTACK_1

keyscope validate localytics -p LOCALYTICS_1 LOCALYTICS_2

keyscope validate algolia -p ALGOLIA_1 ALGOLIA_2 ALGOLIA_3

keyscope validate branchio -p BRANCHIO_1 BRANCHIO_2

keyscope validate browserstack -p BROWSERSTACK_1 BROWSERSTACK_2

keyscope validate buildkite -p BUILDKITE_1

keyscope validate datadog -p DATADOG_1

keyscope validate github -p GITHUB_1

keyscope validate github-ent -p GITHUB-ENT_1 GITHUB-ENT_2

keyscope validate dropbox -p DROPBOX_1

keyscope validate gitlab -p GITLAB_1

keyscope validate heroku -p HEROKU_1

keyscope validate mailchimp -p MAILCHIMP_1 MAILCHIMP_2

keyscope validate mailgun -p MAILGUN_1

keyscope validate pagerduty -p PAGERDUTY_1

keyscope validate circleci -p CIRCLECI_1

keyscope validate facebook-access-token -p FACEBOOK-ACCESS-TOKEN_1

keyscope validate salesforce -p SALESFORCE_1 SALESFORCE_2

keyscope validate jumpcloud -p JUMPCLOUD_1

keyscope validate saucelabs-us -p SAUCELABS-US_1 SAUCELABS-US_2

keyscope validate saucelabs-eu -p SAUCELABS-EU_1 SAUCELABS-EU_2

keyscope validate sendgrid -p SENDGRID_1

keyscope validate slack -p SLACK_1

keyscope validate slack-webhook -p SLACK-WEBHOOK_1

keyscope validate stripe -p STRIPE_1

keyscope validate travisci -p TRAVISCI_1 TRAVISCI_2

keyscope validate twilio -p TWILIO_1 TWILIO_2

keyscope validate twitter -p TWITTER_1

keyscope validate zendesk -p ZENDESK_1 ZENDESK_2

keyscope validate firebase -p FIREBASE_1 FIREBASE_2

keyscope validate aws -p AWS_1 AWS_2

keyscope validate elastic-apm-secret -p ELASTIC-APM-SECRET_1 ELASTIC-APM-SECRET_2

keyscope validate artifactory -p ARTIFACTORY_1 ARTIFACTORY_2

keyscope validate ibm-cos -p IBM-COS_1 IBM-COS_2

keyscope validate ibm-iam -p IBM-IAM_1

keyscope validate ibm-cloudant -p IBM-CLOUDANT_1 IBM-CLOUDANT_2 IBM-CLOUDANT_3

keyscope validate softlayer -p SOFTLAYER_1 SOFTLAYER_2

keyscope validate square -p SQUARE_1

keyscope validate telegram-bot -p TELEGRAM-BOT_1

keyscope validate bingmaps -p BINGMAPS_1

keyscope validate buttercms -p BUTTERCMS_1

keyscope validate wakatime -p WAKATIME_1

keyscope validate calendly -p CALENDLY_1

keyscope validate shodan -p SHODAN_1

keyscope validate opsgenie -p OPSGENIE_1

keyscope validate pendo -p PENDO_1

keyscope validate hubspot -p HUBSPOT_1

keyscope validate lokalise -p LOKALISE_1

:cake: Adding your own providers

You can specify a custom definitions file (here is an example):

$ keyscope -f your-definitions.yaml validate --list

Which is suitable for adding your own internal services, key issuing policies, and infrastructure.

You can also use custom definitions to test out new providers that you'd like to contribute back to keyscope :smile:

Basics of a definition

All definitions represent an interaction. A request being made, and a policy that's being checked against it.

providers:
  hookbin:
    validation:
      #
      # the request part
      #
      request:
        params:
        - name: hookbin_1
          desc: hookbin ID (https://hookb.in)
        - name: hookbin_2
          desc: fake key to put as a query param
        id: "postbin:validation"
        desc: "Postbin: valid key"
        # variable interpolation is good for all fields
        uri: "https://hookb.in/{{hookbin_1}}?q={{hookbin_2}}"
        method: post
        # you can also use headers, body, form, basic_auth and more (see defs.yaml)

      # 
      # the policy part: all values are actually regular expressions and are matched against service response
      #
      response:
        status_code: "200"
        body: ok

When in doubt, you can check keyscope's own defs.yaml for real examples of how to use this infrastructure.

Tutorial: adding Dropbox

To validate if a dropbox API key works, we first need to learn about the canonical way to authenticate against that API.

First stop, API docs:

• Dropbox has an API Explorer which is super useful

Next stop, we want to find an API call that is a representative for:

• Has to be authenticated
• Has to indicate that when accessed successfully with our candidate key, the key has some authoritative value. Which means, that if exposed, contains significant risk.

For this example, getting our current account sounds like something that only when we identify who we are - we're able to do.

We'll select get_current_account.

Let's start forming our interaction. First the needed skeleton: containing the name of the provider (dropbox), its ID and description below, as well as parameters required and their name and description:

  dropbox:
    validation:
      request:
        id: "dropbox:validation"
        desc: "dropbox: valid API credentials"
        params:
        - name: dropbox_1
          desc: dropbox token

We keep the name of the parameter with a special convention that helps when feeding keyscope automatically:

PROVIDER_N
Where 'N' starts in 1 e.g.:
dropbox_1
dropbox_2
aws_1
...

Then, details about actually making an HTTP call, as required by Dropbox (Bearer token authentication).

        uri: https://api.dropboxapi.com/2/users/get_current_account
        method: post
        headers:
          Authorization:
          - Bearer {{dropbox_1}}

Note that per standard, all HTTP header fields are actually arrays. It's OK to always make an array of size one if you only have one value (most common case).

We also see variable interpolation here. Where {{dropbox_1}} will get replaced by keyscope in time before making the actual call.

Finally, we want to make sure we answer the question:

• What does it mean to have a successful call?

In our case, the Dropbox API call returns HTTP OK on success, which means a 200 status code.

And the final, complete result is this:

dropbox:
  validation:
    request:
      id: "dropbox:validation"
      desc: "dropbox: valid API credentials"
      params:
      - name: dropbox_1
        desc: dropbox token
      uri: https://api.dropboxapi.com/2/users/get_current_account
      method: post
      headers:
        Authorization:
        - Bearer {{dropbox_1}}
    response:
      status_code: "200"

Meanwhile, you can drop this provider in your own providers.yaml file and run keyscope:

$ keyscope -f providers.yaml validate dropbox -p MY_KEY

Now you can keep this in your private providers.yaml file or contribute it back to keyscope if you think other people might enjoy using it - we're happy to accept pull requests.

Thanks

To all Contributors - you make this happen, thanks!

Copyright

Copyright (c) 2021 @jondot. See LICENSE for further details.