droopescan - A plugin-based scanner that aids security researchers in identifying issues with several CMSs (Drupal, Silverstripe & Wordpress)

Saturday, March 25, 2017

A plugin-based scanner that aids security researchers in identifying issues with several CMS:
  • Drupal.
  • SilverStripe.
  • Wordpress.

Partial functionality for:
  • Joomla (version enumeration and interesting URLs only).
  • Moodle (identification doesn't work yet. You need to force 'scan moodle')
computer:~/droopescan$ droopescan scan drupal -u http://example.org/ -t 8
[+] No themes found.

[+] Possible interesting urls found:
    Default changelog file - https://www.example.org/CHANGELOG.txt
    Default admin - https://www.example.org/user/login

[+] Possible version(s):

[+] Plugins found:
    views https://www.example.org/sites/all/modules/views/
    token https://www.example.org/sites/all/modules/token/
    pathauto https://www.example.org/sites/all/modules/pathauto/
    libraries https://www.example.org/sites/all/modules/libraries/
    entity https://www.example.org/sites/all/modules/entity/
    google_analytics https://www.example.org/sites/all/modules/google_analytics/
    ctools https://www.example.org/sites/all/modules/ctools/
    features https://www.example.org/sites/all/modules/features/
    [... snip for README ...]

[+] Scan finished (0:04:59.502427 elapsed)
You can get a full list of options by running:
droopescan --help
droopescan scan --help

Why not X?
Because droopescan:
  • is fast
  • is stable
  • is up to date
  • allows simultaneous scanning of multiple sites
  • is 100% python

Installation is easy using pip:
apt-get install python-pip
pip install droopescan
Manual installation is as follows:
git clone https://github.com/droope/droopescan.git
cd droopescan
pip install -r requirements.txt
./droopescan scan --help
The master branch corresponds to the latest release (what is in pypi). Development branch is unstable and all pull requests must be made against it. More notes regarding installation can be found here .


Scan types.
Droopescan aims to be the most accurate by default, while not overloading the target server due to excessive concurrent requests. Due to this, by default, a large number of requests will be made with four threads; change these settings by using the --number and --threads arguments respectively.
This tool is able to perform four kinds of tests. By default all tests are ran, but you can specify one of the following with the -e or --enumerate flag:
  • p -- Plugin checks : Performs several thousand HTTP requests and returns a listing of all plugins found to be installed in the target host.
  • t -- Theme checks : As above, but for themes.
  • v -- Version checks : Downloads several files and, based on the checksums of these files, returns a list of all possible versions.
  • i -- Interesting url checks : Checks for interesting urls (admin panels, readme files, etc.)
More notes regarding scanning can be found here .

Target specification.
You can specify a particular host to scan by passing the -u or --url parameter:
    droopescan scan drupal -u example.org
You can also omit the drupal argument. This will trigger “CMS identification”, like so:
    droopescan scan -u example.org
Multiple URLs may be scanned utilising the -U or --url-file parameter. This parameter should be set to the path of a file which contains a list of URLs.
    droopescan scan drupal -U list_of_urls.txt
The drupal parameter may also be ommited in this example. For each site, it will make several GET requests in order to perform CMS identification, and if the site is deemed to be a supported CMS, it is scanned and added to the output list. This can be useful, for example, to run droopescan across all your organisation's sites.
    droopescan scan -U list_of_urls.txt
The code block below contains an example list of URLs, one per line:
A file containing URLs and a value to override the default host header with separated by tabs or spaces is also OK for URL files. This can be handy when conducting a scan through a large range of hosts and you want to prevent unnecessary DNS queries. To clarify, an example below: example.org example.org  example.org
It is quite tempting to test whether the scanner works for a particular CMS by scanning the official site (e.g. wordpress.org for wordpress), but the official sites rarely run vainilla installations of their respective CMS or do unorthodox things. For example, wordpress.org runs the bleeding edge version of wordpress, which will not be identified as wordpress by droopescan at all because the checksums do not match any known wordpress version.

The application fully supports .netrc files and http_proxy environment variables.
Use a .netrc file for basic authentication. An example netrc (a file named .netrc placed in your root home directory) file could look as follows:
machine secret.google.com
    login admin@google.com
    password Winter01
You can set the http_proxy and https_proxy variables. These allow you to set a parent HTTP proxy, in which you can handle more complex types of authentication (e.g. Fiddler, ZAP, Burp)
export http_proxy='user:password@localhost:8080'
export https_proxy='user:password@localhost:8080'
droopescan scan drupal --url http://localhost/drupal
WARNING: By design, to allow intercepting proxies and the testing of applications with bad SSL, droopescan allows self-signed or otherwise invalid certificates. ˙ ͜ʟ˙

This application supports both "standard output", meant for human consumption, or JSON, which is more suitable for machine consumption. This output is stable between major versions.
This can be controlled with the --output flag. Some sample JSON output would look as follows (minus the excessive whitespace):
  "themes": {
    "is_empty": true,
    "finds": [

  "interesting urls": {
    "is_empty": false,
    "finds": [
        "url": "https:\/\/www.drupal.org\/CHANGELOG.txt",
        "description": "Default changelog file."
        "url": "https:\/\/www.drupal.org\/user\/login",
        "description": "Default admin."
  "version": {
    "is_empty": false,
    "finds": [
  "plugins": {
    "is_empty": false,
    "finds": [
        "url": "https:\/\/www.drupal.org\/sites\/all\/modules\/views\/",
        "name": "views"
Some attributes might be missing from the JSON object if parts of the scan are not ran.
This is how multi-site output looks like; each line contains a valid JSON object as shown above.
    $ droopescan scan drupal -U six_and_above.txt -e v
    {"host": "http://localhost/drupal-7.6/", "version": {"is_empty": false, "finds": ["7.6"]}}
    {"host": "http://localhost/drupal-7.7/", "version": {"is_empty": false, "finds": ["7.7"]}}
    {"host": "http://localhost/drupal-7.8/", "version": {"is_empty": false, "finds": ["7.8"]}}
    {"host": "http://localhost/drupal-7.9/", "version": {"is_empty": false, "finds": ["7.9"]}}
    {"host": "http://localhost/drupal-7.10/", "version": {"is_empty": false, "finds": ["7.10"]}}
    {"host": "http://localhost/drupal-7.11/", "version": {"is_empty": false, "finds": ["7.11"]}}
    {"host": "http://localhost/drupal-7.12/", "version": {"is_empty": false, "finds": ["7.12"]}}
    {"host": "http://localhost/drupal-7.13/", "version": {"is_empty": false, "finds": ["7.13"]}}
    {"host": "http://localhost/drupal-7.14/", "version": {"is_empty": false, "finds": ["7.14"]}}
    {"host": "http://localhost/drupal-7.15/", "version": {"is_empty": false, "finds": ["7.15"]}}
    {"host": "http://localhost/drupal-7.16/", "version": {"is_empty": false, "finds": ["7.16"]}}
    {"host": "http://localhost/drupal-7.17/", "version": {"is_empty": false, "finds": ["7.17"]}}
    {"host": "http://localhost/drupal-7.18/", "version": {"is_empty": false, "finds": ["7.18"]}}
    {"host": "http://localhost/drupal-7.19/", "version": {"is_empty": false, "finds": ["7.19"]}}
    {"host": "http://localhost/drupal-7.20/", "version": {"is_empty": false, "finds": ["7.20"]}}
    {"host": "http://localhost/drupal-7.21/", "version": {"is_empty": false, "finds": ["7.21"]}}
    {"host": "http://localhost/drupal-7.22/", "version": {"is_empty": false, "finds": ["7.22"]}}
    {"host": "http://localhost/drupal-7.23/", "version": {"is_empty": false, "finds": ["7.23"]}}
    {"host": "http://localhost/drupal-7.24/", "version": {"is_empty": false, "finds": ["7.24"]}}
    {"host": "http://localhost/drupal-7.25/", "version": {"is_empty": false, "finds": ["7.25"]}}
    {"host": "http://localhost/drupal-7.26/", "version": {"is_empty": false, "finds": ["7.26"]}}
    {"host": "http://localhost/drupal-7.27/", "version": {"is_empty": false, "finds": ["7.27"]}}
    {"host": "http://localhost/drupal-7.28/", "version": {"is_empty": false, "finds": ["7.28"]}}
    {"host": "http://localhost/drupal-7.29/", "version": {"is_empty": false, "finds": ["7.29"]}}
    {"host": "http://localhost/drupal-7.30/", "version": {"is_empty": false, "finds": ["7.30"]}}
    {"host": "http://localhost/drupal-7.31/", "version": {"is_empty": false, "finds": ["7.31"]}}
    {"host": "http://localhost/drupal-7.32/", "version": {"is_empty": false, "finds": ["7.32"]}}
    {"host": "http://localhost/drupal-7.33/", "version": {"is_empty": false, "finds": ["7.33"]}}
    {"host": "http://localhost/drupal-7.34/", "version": {"is_empty": false, "finds": ["7.34"]}}

When things are not going exactly your way, you can check why by using the --debug-requests command.
Some output might look like this:
computer:~/droopescan# droopescan scan silverstripe -u http://localhost -n 10 -e p --debug-requests
[head] http://localhost/framework/... 403
[head] http://localhost/cms/css/layout.css... 404
[head] http://localhost/framework/css/UploadField.css... 200
[head] http://localhost/misc/test/error/404/ispresent.html... 404
[head] http://localhost/widgetextensions/... 404
[head] http://localhost/orbit/... 404
[head] http://localhost/sitemap/... 404
[head] http://localhost/simplestspam/... 404
[head] http://localhost/ecommerce_modifier_example/... 404
[head] http://localhost/silverstripe-hashpath/... 404
[head] http://localhost/timeline/... 404
[head] http://localhost/silverstripe-hiddenfields/... 404
[head] http://localhost/addressable/... 404
[head] http://localhost/silverstripe-description/... 404
[+] No plugins found.

[+] Scan finished (0:00:00.058422 elapsed)
The --debug paramter also exists and may be used to debug application internals.

You can get an up to date report on the capabilities of the scanner by running the following command
    droopescan stats
Some sample output might look as follows:
Functionality available for ‘drupal’:
- Enumerate plugins (XXXX plugins.)
- Enumerate themes (XXXX themes.)
- Enumerate interesting urls (X urls.)
- Enumerate version (up to version X.X.X-alphaXX, X.XX, X.XX.)
Functionality available for ‘joomla’:
- Enumerate interesting urls (X urls.)
- Enumerate version (up to version XX.X, X.X.X, X.X.XX.rcX.)
Functionality available for ‘wordpress’:
- Enumerate interesting urls (X urls.)
- Enumerate version (up to version X.X.X, X.X.X, X.X.X.)
Functionality available for ‘silverstripe’:
- Enumerate plugins (XXX plugins.)
- Enumerate themes (XX themes.)
- Enumerate interesting urls (X urls.)
- Enumerate version (up to version X.X.XX, X.X.XX, X.X.XX.)
It is important to verify that the latest version available for the CMS installation is available within droopescan , as otherwise results may be inaccurate.


Create your own plugin.
You can add suport for your favourite CMS. The process is actually quite simple, and a lot of information can be glimpsed by viewing the example.py file in the plugins/ folder.
This file should serve well as a base for your implementation.
You can create your own plugin for Joomla and enable it as follows:
$ cp plugins/example.py plugins/joomla.py
$ cp plugins.d/example.conf plugins.d/joomla.conf
You then need to go to plugins/joomla.py and change a few things:
  • The class name needs to be Joomla.
  • The plugin label (located at Meta.label) needs to be changed to joomla.
  • At the end of the file, the register call needs to be modified to reflect the correct class name.
  • The exposed function, 'example', needs to be renamed to joomla.
    @controller.expose(help='example scanner')
    def joomla(self):
We also need to change the plugins.d/joomla.conf file, and change it to the following:
enable_plugin = true
We should now be in a state which looks as follows:
$ droopescan scan joomla
[+] --url parameter is required.
Your next step would be to generate a valid plugin wordlist, a valid theme wordlist, a versions.xml file, and optionally a list of interesting URLs, as well as replace all variables that are in joomla.py with values that are correct for your implementation.
The plugin needs to update automatically in order for a pull request to be accepted. Further documentation may be later made available, but for now, keep in mind that the update_version_check, update_version, update_plugins_check and update_plugins need to be implemented. For reference, please review the drupal.py file. This is required in order to ensure plugins are kept to date.

Issues & Pull Requests.
Pull requests that create new plugins are welcome provided that maintenance for those plugins is done automatically.
Please remember to make your pull requests against the develoment branch rather than the master. Issues can be raised on the issue tracker here on GitHub.
To run tests, some dependencies must be installed. Running the following commands will result in them being installed and the tests being ran:
    apt-get install libxslt1-dev libxml2-dev zlib1g-dev python python-pip python-dev python3 python3-pip python3-dev
    pip install -r requirements.txt -r requirements_test.txt
    pip3 install -r requirements.txt -r requirements_test.txt
    ./droopescan test
You can run individual tests with the -s flag.
./droopescan test -s test_integration_drupal

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