Vulnerability Description
BigBlueButton before 2.2.7 allows remote authenticated users to read local files and conduct SSRF attacks via an uploaded Office document that has a crafted URL in an ODF xlink field.
CVSS Score
6.5
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Bigbluebutton | Bigbluebutton | < 2.2.27 |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/159667/BigBlueButton-2.2.25-File-DisclosureExploitThird Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/commit/71fe1eac1e5bd73a2cd44bd79cPatchThird Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/compare/v2.2.26...v2.2.27Release NotesThird Party Advisory
- https://www.golem.de/news/big-blue-button-das-grosse-blaue-sicherheitsrisiko-201ExploitThird Party Advisory
- https://www.redteam-pentesting.de/advisories/rt-sa-2020-005Third Party Advisory
- http://packetstormsecurity.com/files/159667/BigBlueButton-2.2.25-File-DisclosureExploitThird Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/commit/71fe1eac1e5bd73a2cd44bd79cPatchThird Party Advisory
- https://github.com/bigbluebutton/bigbluebutton/compare/v2.2.26...v2.2.27Release NotesThird Party Advisory
- https://www.golem.de/news/big-blue-button-das-grosse-blaue-sicherheitsrisiko-201ExploitThird Party Advisory
- https://www.redteam-pentesting.de/advisories/rt-sa-2020-005Third Party Advisory
FAQ
What is CVE-2020-25820?
CVE-2020-25820 is a vulnerability with a CVSS score of 6.5 (MEDIUM). BigBlueButton before 2.2.7 allows remote authenticated users to read local files and conduct SSRF attacks via an uploaded Office document that has a crafted URL in an ODF xlink field.
How severe is CVE-2020-25820?
CVE-2020-25820 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-25820?
Check the references section above for vendor advisories and patch information. Affected products include: Bigbluebutton Bigbluebutton.