CVE-2020-28953 : Security Advisory and Response

BigBlueButton before 2.2.29 allows users to vote multiple times in a single poll.

Understanding CVE-2020-28953

In BigBlueButton before version 2.2.29, a vulnerability exists that enables a user to cast multiple votes in a single poll.

What is CVE-2020-28953?

The CVE-2020-28953 vulnerability in BigBlueButton allows users to manipulate poll results by voting more than once in a single poll, potentially impacting the integrity of the polling process.

The Impact of CVE-2020-28953

This vulnerability could lead to inaccurate poll results and compromise the fairness and reliability of decision-making processes within the BigBlueButton platform.

Technical Details of CVE-2020-28953

BigBlueButton before version 2.2.29 is susceptible to a flaw that permits users to cast multiple votes in a single poll.

Vulnerability Description

The vulnerability in BigBlueButton before 2.2.29 allows users to bypass restrictions and submit multiple votes in a single poll, potentially skewing the poll results.

Affected Systems and Versions

Affected Product: BigBlueButton
Vulnerable Versions: Before 2.2.29

Exploitation Mechanism

The vulnerability can be exploited by users to manipulate poll outcomes by casting multiple votes in a single poll, undermining the accuracy and reliability of the polling process.

Mitigation and Prevention

To address CVE-2020-28953, immediate actions and long-term security practices are recommended.

Immediate Steps to Take

Upgrade BigBlueButton to version 2.2.29 or newer to mitigate the vulnerability.
Monitor poll results for any unusual patterns or discrepancies.

Long-Term Security Practices

Educate users on the importance of voting integrity and discourage multiple voting.
Implement user authentication mechanisms to prevent unauthorized voting.

Patching and Updates

Regularly update BigBlueButton to the latest version to ensure that known vulnerabilities are patched and security is enhanced.