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{% embed url="https://websec.nl/" %} ## Discovery * Check **meta** ```bash curl https://www.drupal.org/ | grep 'content="Drupal' ``` * **Node**: Drupal **indexes its content using nodes**. A node can **hold anything** such as a blog post, poll, article, etc. The page URIs are usually of the form `/node/`. ```bash curl drupal-site.com/node/1 ``` ## Enumeration ### Version * Check `/CHANGELOG.txt` ```bash curl -s http://drupal-site.local/CHANGELOG.txt | grep -m2 "" Drupal 7.57, 2018-02-21 ``` {% hint style="info" %} Newer installs of Drupal by default block access to the `CHANGELOG.txt` and `README.txt` files. {% endhint %} ### Username enumeration Drupal supports **three types of users** by default: 1. **`Administrator`**: This user has complete control over the Drupal website. 2. **`Authenticated User`**: These users can log in to the website and perform operations such as adding and editing articles based on their permissions. 3. **`Anonymous`**: All website visitors are designated as anonymous. By default, these users are only allowed to read posts. **To enumerate users you can:** * **Get number of users:** Just access `/user/1`, `/user/2`, `/user/3`... until it returns an error indicating that the suer doesn't exist. * **Registry**: Access`/user/register` and try to create a username and if the name is already taken it will be indicated in an error from the server. * **Reset password**: Try to reset the password of a user and if the user doesn't exist it will be indicated clearly in an error message. ### Hidden pages Just find new pages by looking into **`/node/FUZZ`** where **`FUZZ`** is a number (from 1 to 1000 for example). ### Installed modules info ```bash #From https://twitter.com/intigriti/status/1439192489093644292/photo/1 #Get info on installed modules curl https://example.com/config/sync/core.extension.yml curl https://example.com/core/core.services.yml # Download content from files exposed in the previous step curl https://example.com/config/sync/swiftmailer.transport.yml ``` ## Automatic Tools ```bash droopescan scan drupal -u http://drupal-site.local ``` ## RCE If you have access to the Drupal web console check these options to get RCE: {% content-ref url="drupal-rce.md" %} [drupal-rce.md](drupal-rce.md) {% endcontent-ref %} ## From XSS to RCE * [**Drupalwned**](https://github.com/nowak0x01/Drupalwned): Drupal Exploitation Script that **elevate XSS to RCE or Others Critical Vulnerabilities.** For more info check [**this post**](https://nowak0x01.github.io/papers/76bc0832a8f682a7e0ed921627f85d1d.html). It provides **support for Drupal Versions 7.X.X, 8.X.X, 9.X.X and 10.X.X, and allows to:** * _**Privilege Escalation:**_ Creates an administrative user in Drupal. * _**(RCE) Upload Template:**_ Upload custom templates backdoored to Drupal. ## Post Exploitation ### Read settings.php {% code overflow="wrap" %} ```bash find / -name settings.php -exec grep "drupal_hash_salt\|'database'\|'username'\|'password'\|'host'\|'port'\|'driver'\|'prefix'" {} \; 2>/dev/null ``` {% endcode %} ### Dump users from DB {% code overflow="wrap" %} ```bash mysql -u drupaluser --password='2r9u8hu23t532erew' -e 'use drupal; select * from users' ``` {% endcode %}