CVE Vulnerabilities

CVE-2020-27602

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Published: Sep 29, 2022 | Modified: Oct 03, 2022
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu

BigBlueButton before 2.2.7 does not have a protection mechanism for separator injection in meetingId, userId, and authToken.

Weakness

The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

Affected Software

Name Vendor Start Version End Version
Bigbluebutton Bigbluebutton * 2.2.7 (excluding)

Potential Mitigations

References