CVE-2020-27602
CRITICAL severity · CVSS 9.8 · Injection
9.8CVSS CRITICAL
Summary
BigBlueButton before 2.2.7 does not have a protection mechanism for separator injection in meetingId, userId, and authToken.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)1%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://github.com/bigbluebutton/bigbluebutton/commit/4bfd924c64da2681f4c037026021f47eb189d717 ↗