CVE-2023-43798
Last modified
CVE-2023-43798 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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). EPSS estimates a 0.42% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Bigbluebutton | Bigbluebutton | < 2.6.12 | — |
| Bigbluebutton | Bigbluebutton | 2.7.0 | Alpha1 |
References
- https://github.com/bigbluebutton/bigbluebutton/pull/18494Third Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/pull/18580Third Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/pull/18494Third Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/pull/18580Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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