CVE-2023-35927 : Vulnerability Insights and Analysis

A detailed overview of the Nextcloud CVE-2023-35927 highlighting the vulnerability and its impact, along with mitigation strategies.

Understanding CVE-2023-35927

This section dives into the specifics of the security vulnerability present in Nextcloud systems.

What is CVE-2023-35927?

NextCloud Server and NextCloud Enterprise Server versions are susceptible to unauthorized modifications by a malicious trusted server, potentially compromising system integrity.

The Impact of CVE-2023-35927

Discover the repercussions of this vulnerability on Nextcloud systems and user data security.

Technical Details of CVE-2023-35927

Explore the technical aspects of CVE-2023-35927, including the vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

Detailed insight into how a malicious server can manipulate or delete VCards in the system addressbook of NextCloud servers.

Affected Systems and Versions

Nextcloud Server and Nextcloud Enterprise Server versions 21.0.0 to 26.0.2 may be affected, impacting user information and settings.

Exploitation Mechanism

Understand how unauthorized modifications can occur through the exchange of shared secrets between trusted servers.

Mitigation and Prevention

Learn about the steps to mitigate the CVE-2023-35927 vulnerability and prevent future exploits.

Immediate Steps to Take

Guidance on immediate actions to safeguard Nextcloud systems, including removing trusted servers and system addressbook sync.

Long-Term Security Practices

Establish long-term security practices to enhance the resilience of Nextcloud installations against similar security threats.

Patching and Updates

Information on available patches and updates to address the CVE-2023-35927 vulnerability.