Vulnerability Description
In Opencast before 7.6 and 8.1, users with the role ROLE_COURSE_ADMIN can use the user-utils endpoint to create new users not including the role ROLE_ADMIN. ROLE_COURSE_ADMIN is a non-standard role in Opencast which is referenced neither in the documentation nor in any code (except for tests) but only in the security configuration. From the name – implying an admin for a specific course – users would never expect that this role allows user creation. This issue is fixed in 7.6 and 8.1 which both ship a new default security configuration.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apereo | Opencast | < 7.6 |
Related Weaknesses (CWE)
References
- https://github.com/opencast/opencast/commit/72fad0031d8a82c860e2bde0b27570c50423Patch
- https://github.com/opencast/opencast/security/advisories/GHSA-94qw-r73x-j7hgExploitThird Party Advisory
- https://github.com/opencast/opencast/commit/72fad0031d8a82c860e2bde0b27570c50423Patch
- https://github.com/opencast/opencast/security/advisories/GHSA-94qw-r73x-j7hgExploitThird Party Advisory
FAQ
What is CVE-2020-5231?
CVE-2020-5231 is a vulnerability with a CVSS score of 4.8 (MEDIUM). In Opencast before 7.6 and 8.1, users with the role ROLE_COURSE_ADMIN can use the user-utils endpoint to create new users not including the role ROLE_ADMIN. ROLE_COURSE_ADMIN is a non-standard role in...
How severe is CVE-2020-5231?
CVE-2020-5231 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-5231?
Check the references section above for vendor advisories and patch information. Affected products include: Apereo Opencast.