CVE-2020-13677 : Vulnerability Insights and Analysis
Learn about CVE-2020-13677, a Drupal Core vulnerability allowing unauthorized access to content. Find out affected versions, exploitation risks, and mitigation steps.
Drupal Core JSON:API Module Access Bypass Vulnerability
Understanding CVE-2020-13677
What is CVE-2020-13677?
Under certain conditions, the Drupal core JSON:API module fails to adequately restrict access to specific content, potentially leading to unintended access bypass. Websites without the JSON:API module enabled are not impacted.
The Impact of CVE-2020-13677
This vulnerability could allow unauthorized users to access restricted content, compromising the confidentiality and integrity of the affected Drupal websites.
Technical Details of CVE-2020-13677
Vulnerability Description
The issue lies in the inadequate access control mechanisms of the Drupal core JSON:API module, enabling unauthorized access to certain content.
Affected Systems and Versions
- Affected Versions: Drupal Core 8.9.x, 9.1.x, and 9.2.x
- Versions Less Than: 8.9.19, 9.1.13, and 9.2.6
Exploitation Mechanism
Attackers can exploit this vulnerability by leveraging the lack of proper access restrictions in the JSON:API module to bypass intended security measures.
Mitigation and Prevention
Immediate Steps to Take
- Disable the JSON:API module if not required to mitigate the vulnerability.
- Implement strict access controls and permissions to limit unauthorized access.
Long-Term Security Practices
- Regularly monitor and audit access controls on Drupal websites.
- Stay informed about security updates and patches released by Drupal.
- Conduct security assessments to identify and address potential vulnerabilities.
Patching and Updates
Apply the latest security patches and updates provided by Drupal to address this vulnerability.