BigBlueButton: Insecure Randomness allows to guess user's conference session token and impersonate them
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| bigbluebutton | bigbluebutton | affected |
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No data.
No data.
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| Bigbluebutton | Bigbluebutton |
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No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.462% probability within 30 days)
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
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| First Time appeared |
Bigbluebutton
Bigbluebutton bigbluebutton |
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| Vendors & Products |
Bigbluebutton
Bigbluebutton bigbluebutton |
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| Description | BigBlueButton is an open-source virtual classroom. Prior to 3.0.21, bbb-web generated conference sessionToken values with insufficiently secure randomness in bbb-common-web/src/main/java/org/bigbluebutton/api/Util.java and bigbluebutton-web/grails-app/controllers/org/bigbluebutton/web/controllers/ApiController.groovy, allowing a session user to predict other users' conference session tokens and impersonate them. This issue is fixed in version 3.0.21. | |
| Title | BigBlueButton: Insecure Randomness allows to guess user's conference session token and impersonate them | |
| Weaknesses | CWE-330 | |
| References |
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| Metrics |
cvssV3_1
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