Vulnerability Description
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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Bigbluebutton | Bigbluebutton | < 2.6.12 |
Related Weaknesses (CWE)
References
- https://github.com/bigbluebutton/bigbluebutton/pull/18494Third Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/pull/18580Third Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-3q22-hphThird Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-h98v-2h8Third Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/pull/18494Third Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/pull/18580Third Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-3q22-hphThird Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-h98v-2h8Third Party Advisory
FAQ
What is CVE-2023-43798?
CVE-2023-43798 is a vulnerability with a CVSS score of 5.6 (MEDIUM). 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. ...
How severe is CVE-2023-43798?
CVE-2023-43798 has been rated MEDIUM with a CVSS base score of 5.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-43798?
Check the references section above for vendor advisories and patch information. Affected products include: Bigbluebutton Bigbluebutton.