CVE-2021-32680 : What You Need to Know

Nextcloud Server versions prior to 19.0.13, 20.0.11, and 21.0.3 had a vulnerability where audit logging failed to properly log events for unsetting share expiration dates, which should have been recorded. This issue has been addressed in the patched versions.

Understanding CVE-2021-32680

This section will provide an insight into the details of CVE-2021-32680.

What is CVE-2021-32680?

CVE-2021-32680 is a vulnerability found in Nextcloud Server versions before 19.0.13, 20.0.11, and 21.0.3, where audit logging functionality was inadequate in logging events related to the unsetting of share expiration dates.

The Impact of CVE-2021-32680

The impact of this CVE includes a low base score of 3.3, with low severity in confidentiality, integrity impact, and privileges required for exploitation. The attack complexity is considered low, with a local attack vector and unchanged scope.

Technical Details of CVE-2021-32680

This section will delve into the technical aspects of CVE-2021-32680.

Vulnerability Description

The vulnerability stemmed from the failure of Nextcloud Server audit logging to properly log events for the unsetting of share expiration dates, leading to inadequate event tracking.

Affected Systems and Versions

Systems running Nextcloud Server versions earlier than 19.0.13, 20.0.11, and 21.0.3 are affected by this vulnerability.

Exploitation Mechanism

Exploiting this vulnerability requires low attack complexity and local access, with low privileges needed and no user interaction necessary.

Mitigation and Prevention

Learn how to mitigate and prevent the exploitation of CVE-2021-32680.

Immediate Steps to Take

Update Nextcloud Server to versions 19.0.13, 20.0.11, or 21.0.3 to address this vulnerability and ensure proper event logging.

Long-Term Security Practices

Implement robust auditing mechanisms and regularly update software to stay protected against security vulnerabilities.

Patching and Updates

Stay informed about security advisories and promptly apply patches and updates to maintain a secure environment.