CVE-2020-27604

Medium

Description

BigBlueButton before 2.3 does not implement LibreOffice sandboxing. This might make it easier for remote authenticated users to read the API shared secret in the bigbluebutton.properties file. With the API shared secret, an attacker can (for example) use api/join to join an arbitrary meeting regardless of its guestPolicy setting.

SeverityMedium
CVSS6.5
Exploit probability—
ProductBigbluebutton
PublishedOct 21, 2020
First seenOct 21, 2020

How to fix

Update
  • bigbluebutton bigbluebutton2.2.8 or later

Affected products

ProductAffected versionsFixed in
bigbluebutton bigbluebuttonv < 2.2.82.2.8

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