CVE-2021-32725 : What You Need to Know

Nextcloud Server versions prior to 19.0.13, 20.0.11, and 21.0.3 did not respect default share permissions for federated reshares, impacting data security. Learn more about the vulnerability, its impact, and mitigation steps below.

Understanding CVE-2021-32725

This section provides detailed insights into the CVE-2021-32725 vulnerability affecting Nextcloud Server.

What is CVE-2021-32725?

CVE-2021-32725 is a security vulnerability in Nextcloud Server that allowed default share permissions to be bypassed for federated reshares.

The Impact of CVE-2021-32725

The vulnerability could result in unauthorized access to shared files and folders, compromising data confidentiality.

Technical Details of CVE-2021-32725

Explore the specific technical details of the CVE-2021-32725 vulnerability in this section.

Vulnerability Description

In Nextcloud Server versions prior to 19.0.13, 20.0.11, and 21.0.3, default share permissions for federated reshares were not enforced, leading to a security loophole.

Affected Systems and Versions

Nextcloud versions < 19.0.13, >= 20.0.0, < 20.0.11, and >= 21.0.0, < 21.0.3 are affected by this vulnerability.

Exploitation Mechanism

The vulnerability could be exploited by malicious actors to access shared data without proper permissions.

Mitigation and Prevention

Discover the necessary steps to mitigate the CVE-2021-32725 vulnerability and prevent security risks.

Immediate Steps to Take

Users should update their Nextcloud Server to versions 19.0.13, 20.0.11, or 21.0.3 to address the security issue.

Long-Term Security Practices

Incorporate regular security updates and monitoring practices to ensure ongoing protection against similar vulnerabilities.

Patching and Updates

Apply patches and software updates promptly to stay protected from potential security threats.