CVE-2020-13670 : What You Need to Know

Drupal Core versions 8.8.x, 8.9.x, and 9.0.x are affected by an Information Disclosure vulnerability in the file module, allowing unauthorized access to file metadata.

Understanding CVE-2020-13670

This CVE involves an Information Disclosure vulnerability in Drupal Core versions 8.8.x, 8.9.x, and 9.0.x.

What is CVE-2020-13670?

The vulnerability in the file module of Drupal Core enables attackers to access file metadata of private files by guessing the file ID.

The Impact of CVE-2020-13670

Attackers can gain unauthorized access to file metadata of private files they do not have permission to view.

Technical Details of CVE-2020-13670

This section provides technical insights into the vulnerability.

Vulnerability Description

The vulnerability allows attackers to access file metadata of private files by guessing the file ID.

Affected Systems and Versions

Drupal Core 8.8.x versions prior to 8.8.10
Drupal Core 8.9.x versions prior to 8.9.6
Drupal Core 9.0.x versions prior to 9.0.6

Exploitation Mechanism

Attackers exploit the vulnerability by guessing the ID of a private file to access its metadata.

Mitigation and Prevention

Protect your systems from CVE-2020-13670 with the following measures.

Immediate Steps to Take

Update Drupal Core to versions 8.8.10, 8.9.6, or 9.0.6 to patch the vulnerability.
Monitor file access and permissions to prevent unauthorized file metadata access.

Long-Term Security Practices

Regularly update Drupal Core and apply security patches promptly.
Implement access controls and file permission restrictions to limit unauthorized access.

Patching and Updates

Apply the latest security updates provided by Drupal to mitigate the Information Disclosure vulnerability.