CVE-2023-5543: Moodle: duplicating a bigbluebutton activity assigns the same meeting id
First published: Thu Oct 12 2023(Updated: )
When duplicating a BigBlueButton activity, the original meeting ID was also duplicated instead of using a new ID for the new activity. This could provide unintended access to the original meeting.
Credit: patrick@puiterwijk.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/moodle | <4.2.3 | 4.2.3 |
| redhat/moodle | <4.1.6 | 4.1.6 |
| redhat/moodle | <4.0.11 | 4.0.11 |
| Moodle Moodle | >=4.0.0<4.0.11 | |
| Moodle Moodle | >=4.1.0<4.1.6 | |
| Moodle Moodle | >=4.2.0<4.2.3 | |
| Fedoraproject Extra Packages For Enterprise Linux | =7.0 | |
| Fedoraproject Fedora | =38 |
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Reference Links
- https://moodle.org/mod/forum/discuss.php?d=451584
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2244904
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2244905
- https://bugzilla.redhat.com/show_bug.cgi?id=2243442
- http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-77795
Frequently Asked Questions
What is the vulnerability ID of this vulnerability?
The vulnerability ID of this vulnerability is CVE-2023-5543.
What is the severity of CVE-2023-5543?
The severity of CVE-2023-5543 is low with a severity value of 3.3.
How does CVE-2023-5543 affect Moodle?
CVE-2023-5543 affects Moodle by allowing the duplicated BigBlueButton activity to have the same meeting ID as the original, potentially providing unintended access.
Which versions of Moodle are affected by CVE-2023-5543?
Versions up to and exclusive of 4.0.11, 4.1.6, and 4.2.3 of Moodle are affected by CVE-2023-5543.
How can I fix CVE-2023-5543?
To fix CVE-2023-5543, update Moodle to version 4.0.11, 4.1.6, or 4.2.3, depending on the branch you are using.
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