Vulnerability Details CVE-2022-29236
BigBlueButton is an open source web conferencing system. Starting in version 2.2 and prior 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 55.8%
CVSS Severity
CVSS v3 Score 4.3
CVSS v2 Score 4.0
References
- https://github.com/bigbluebutton/bigbluebutton/pull/13803
- https://github.com/bigbluebutton/bigbluebutton/pull/14265
- https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18
- https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-p93g-r9gm-9v6r
- https://github.com/bigbluebutton/bigbluebutton/pull/13803
- https://github.com/bigbluebutton/bigbluebutton/pull/14265
- https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18
- https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-p93g-r9gm-9v6r
Products affected by CVE-2022-29236
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.0
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.1
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.10
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.11
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.12
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.14
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.15
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.16
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.17
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.18
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.19
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.2
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.20
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.21
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.22
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.23
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.24
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.25
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.26
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.27
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.28
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.29
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.3
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.30
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.31
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.4
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.5
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.6
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.7
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.8
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.2.9
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.3
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.3.0
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.3.1
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.3.10
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.3.11
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.3.12
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.3.13
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.3.14
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.3.15
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.3.16
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.3.17
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.3.2
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.3.3
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.3.4
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.3.5
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.3.6
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.3.7
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.3.8
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.3.9
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cpe:2.3:a:bigbluebutton:bigbluebutton:2.4