CVE-2023-43798 - Server-Side Request Forgery (SSRF)

Severity

54%

Complexity

27%

Confidentiality

41%

BigBlueButton is an open-source virtual classroom. BigBlueButton prior to versions 2.6.12 and 2.7.0-rc.1 is vulnerable to Server-Side Request Forgery (SSRF). This issue is a bypass of CVE-2023-33176. A patch in versions 2.6.12 and 2.7.0-rc.1 disabled follow redirect at `httpclient.execute` since the software no longer has to follow it when using `finalUrl`. There are no known workarounds. We recommend upgrading to a patched version of BigBlueButton.

CVSS 3.1 Base Score 5.4. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N).

Overview

First reported 1 year ago

2023-10-30 23:15:00

Last updated 1 year ago

2023-11-08 20:12:00

Affected Software

BigBlueButton BigBlueButton

References

https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-h98v-2h8w-99c4

https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-3q22-hph2-cff7

https://github.com/bigbluebutton/bigbluebutton/pull/18494

https://github.com/bigbluebutton/bigbluebutton/pull/18580

https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-h98v-2h8w-99c4

Third Party Advisory

https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-3q22-hph2-cff7

Third Party Advisory

https://github.com/bigbluebutton/bigbluebutton/pull/18494

Third Party Advisory

https://github.com/bigbluebutton/bigbluebutton/pull/18580

Third Party Advisory

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