CVE-2021-3183 : Security Advisory and Response

Files.com Fat Client 3.3.6 allows authentication bypass because the client continues to have access after a logout and removal of a login profile.

Understanding CVE-2021-3183

This CVE involves an authentication bypass vulnerability in Files.com Fat Client version 3.3.6, which allows unauthorized access even after logging out and removing the login profile.

What is CVE-2021-3183?

CVE-2021-3183 details the issue in Files.com Fat Client 3.3.6, where users can bypass authentication and retain access to the client post-logout and profile removal.

The Impact of CVE-2021-3183

This vulnerability can lead to unauthorized access and compromised security as users can retain access to sensitive information even after logging out.

Technical Details of CVE-2021-3183

The technical aspects of this vulnerability include:

Vulnerability Description

The vulnerability allows users to continue accessing the client interface after logging out and deleting their login profile.

Affected Systems and Versions

Files.com Fat Client version 3.3.6 is specifically impacted by this security flaw.

Exploitation Mechanism

Attackers can exploit this vulnerability to maintain access to the client post-logout, potentially leading to data breaches and unauthorized actions.

Mitigation and Prevention

To address CVE-2021-3183, consider the following:

Immediate Steps to Take

Users should avoid accessing sensitive information on Files.com Fat Client 3.3.6 until a patch is available to prevent unauthorized access.

Long-Term Security Practices

Implement multi-factor authentication and regular security audits to mitigate such authentication bypass risks in the future.

Patching and Updates

Stay informed about security advisories from Files.com and apply patches promptly to ensure the vulnerability is addressed and secure access is restored.