CVE-2020-28954: Medium severity bigbluebutton vulnerability
Published Nov 19, 2020
·Updated
web/controllers/ApiController.groovy in BigBlueButton before 2.2.29 lacks certain parameter sanitization, as demonstrated by accepting control characters in a user name.
Affected Software
1 affected component
BigBlueButton BigBlueButton<2.2.29
Remediation
Event History
Nov 19, 2020
CVE Published
via MITRE·09:14 PM
Data Sourced
via MITRE·09:14 PM
Description
Frequently Asked Questions
1
What is CVE-2020-28954?
CVE-2020-28954 is a vulnerability in BigBlueButton before version 2.2.29 that allows control characters to be accepted in a user name, due to a lack of parameter sanitization in the ApiController.groovy file.
2
How severe is CVE-2020-28954?
CVE-2020-28954 has a severity rating of 5.3 (medium).
3
What software is affected by CVE-2020-28954?
BigBlueButton versions up to and excluding 2.2.29 are affected by CVE-2020-28954.
4
How can I fix CVE-2020-28954?
To fix CVE-2020-28954, you should update your BigBlueButton installation to version 2.2.29 or later.
5
What is the Common Weakness Enumeration (CWE) ID for CVE-2020-28954?
The CWE ID for CVE-2020-28954 is 116.