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CVE-2022-29236

Common vulnerabilities & exposures (CVE)

CVE databaseCVE database blogpostRelease & EoL database
 
Published at: - 02-06-2022 02:15
Last modified: - 09-06-2022 07:39
Total changes: - 2

Description

BigBlueButton is an open source web conferencing system. Starting in version 2.2 and up to versions 2.3.18 and 2.4-rc-6, an attacker can circumvent access restrictions for drawing on the whiteboard. The permission check is inadvertently skipped on the server, due to a previously introduced grace period. The attacker must be a meeting participant. The problem has been patched in versions 2.3.18 and 2.4-rc-6. There are currently no known workarounds.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Low
Attack complexity
Network
Attack vector
None
Availability
Low
Confidentiality
None
Integrity
Low
Privileges required
Unchanged
Scope
None
User interaction
4.3
Base score
2.8
1.4
Exploitability score
Impact score
 

Verification logic

OR
vendor=bigbluebutton AND product=bigbluebutton AND version=2.4 AND update=alpha1
vendor=bigbluebutton AND product=bigbluebutton AND version=2.4 AND update=alpha2
vendor=bigbluebutton AND product=bigbluebutton AND version=2.4 AND update=beta2
vendor=bigbluebutton AND product=bigbluebutton AND version=2.4 AND update=beta1
vendor=bigbluebutton AND product=bigbluebutton AND version=2.4 AND update=beta3
vendor=bigbluebutton AND product=bigbluebutton AND version=2.4 AND update=beta4
vendor=bigbluebutton AND product=bigbluebutton AND versionStartIncluding=2.2.0 AND versionEndExcluding=2.3.18
vendor=bigbluebutton AND product=bigbluebutton AND version=2.4 AND update=rc5
vendor=bigbluebutton AND product=bigbluebutton AND version=2.4 AND update=rc4
vendor=bigbluebutton AND product=bigbluebutton AND version=2.4 AND update=rc3
vendor=bigbluebutton AND product=bigbluebutton AND version=2.4 AND update=rc1
 

Reference

 


Keywords

NVD

 

CVE-2022-29236

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures

 

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