CVE-2020-27601 Explained : Impact and Mitigation

BigBlueButton before version 2.2.7 is affected by a vulnerability where lockSettingsProps.disablePrivateChat does not apply to already opened chats.

Understanding CVE-2020-27601

In this CVE, a specific setting in BigBlueButton fails to restrict private chat access to already opened chats, potentially leading to unauthorized access.

What is CVE-2020-27601?

The vulnerability in BigBlueButton before version 2.2.7 allows users to continue private chats even after the setting to disable them has been enabled.

The Impact of CVE-2020-27601

This vulnerability could result in unauthorized access to private chat conversations, compromising the confidentiality of sensitive information.

Technical Details of CVE-2020-27601

BigBlueButton before version 2.2.7 is susceptible to the following:

Vulnerability Description

The issue lies in the failure of lockSettingsProps.disablePrivateChat to prevent access to already opened private chats.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: All versions before 2.2.7

Exploitation Mechanism

Attackers can exploit this vulnerability by accessing private chat conversations that should have been disabled.

Mitigation and Prevention

To address CVE-2020-27601, consider the following steps:

Immediate Steps to Take

Upgrade to BigBlueButton version 2.2.7 or later to mitigate the vulnerability.
Monitor and restrict access to sensitive information shared in private chats.

Long-Term Security Practices

Regularly review and update security settings to prevent similar vulnerabilities.
Educate users on the importance of secure communication practices.

Patching and Updates

Apply patches and updates provided by BigBlueButton to ensure ongoing protection against security threats.