CVE-2020-13668 : Security Advisory and Response

Drupal Core versions 8.8.x, 8.9.x, and 9.0.x are affected by an Access Bypass vulnerability that allows attackers to exploit the way HTML is rendered in certain forms.

Understanding CVE-2020-13668

This CVE involves an access bypass issue in Drupal Core versions 8.8.x, 8.9.x, and 9.0.x.

What is CVE-2020-13668?

An Access Bypass vulnerability in Drupal Core enables attackers to manipulate HTML rendering in specific forms to exploit the security flaw.

The Impact of CVE-2020-13668

Attackers can bypass access controls and potentially gain unauthorized privileges within the affected Drupal Core versions.

Technical Details of CVE-2020-13668

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The vulnerability allows threat actors to exploit the HTML rendering process in certain forms, leading to unauthorized access.

Affected Systems and Versions

Drupal Core 8.8.x versions before 8.8.10
Drupal Core 8.9.x versions before 8.9.6
Drupal Core 9.0.x versions before 9.0.6

Exploitation Mechanism

Attackers leverage the way HTML is processed in specific forms to bypass access controls and potentially gain unauthorized privileges.

Mitigation and Prevention

Protect your systems from CVE-2020-13668 with these mitigation strategies.

Immediate Steps to Take

Update Drupal Core to versions 8.8.10, 8.9.6, or 9.0.6 to patch the vulnerability.
Monitor system logs for any suspicious activities indicating exploitation attempts.

Long-Term Security Practices

Regularly update Drupal Core and all associated modules to the latest versions to prevent known vulnerabilities.
Implement strong access controls and user permissions to limit unauthorized access.
Conduct regular security audits and penetration testing to identify and address potential security weaknesses.

Patching and Updates

Apply security patches promptly as soon as they are released by Drupal to address any newly discovered vulnerabilities.