DRUPAL VULNERABILITY FOUND

A cybersecurity alert was issued Wednesday, Nov. 18, 2020, regarding a vulnerability in Drupal. The vulnerability could allow an attacker to execute remote code, which could potentially lead to a breach.

What It Is:

A vulnerability has been discovered in the Drupal core module, which could allow for remote code execution. Drupal is an open source content management system (CMS) written in PHP.

Successful exploitation of this vulnerability could allow for remote code execution. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

Read the original Drupal Security Advisory.

Threat Intelligence:

There are currently no reports of this vulnerability being exploited in the wild.

Systems Affected:

• Drupal Core versions prior to 9.0.8, 8.9.9, 8.8.11, and 7.74

Risk:

Government:

• Large and medium government entities: High
• Small government entities: High

Businesses:

• Large and medium business entities: High
• Small business entities: High

Home users: Low

What It Means:

If you and/or your business utilize the Drupal versions mentioned above, you will need to apply appropriate patches provided by Drupal to vulnerable systems immediately following proper testing.

Technical Summary:

A vulnerability has been discovered in the Drupal core module, which could allow for remote code execution. The remote code execution vulnerability exists due to a lack of proper data sanitization of certain filenames on uploaded files. This can lead to files being interpreted as the incorrect extension, served as the wrong MIME type, or executed as PHP for certain hosting configurations.

What To Do:

We recommend the following actions be taken:

• Apply appropriate patches provided by Drupal to vulnerable systems immediately after appropriate testing.
• Ensure no unauthorized system changes have occurred before applying patches.
• Run all software as a non-privileged user to diminish effects of a successful attack.
• Apply the Principle of Least Privilege to all systems and services.
• Drupal version 8.7.x and earlier sites should be migrated to supported Drupal versions as soon as possible after patches are applied.

Negative Consequences of Lost or Stolen Data:

The loss or theft of proprietary data can have severe impacts, particularly if the compromise becomes public and sensitive information is exposed. Possible impacts include:

• Temporary or permanent loss of sensitive or proprietary information.
• Disruption to regular operations.
• Financial losses incurred to restore systems and files.
• Potential harm to an organization’s reputation.

Should your agency or business need assistance with issues arising from vulnerabilities in Drupal including updates and/or patches, Dox can help. Please contact Dox if there is anything we can do to assist in securing your agency, business, or organization.

Thank you for your time and stay safe online.