Vulnerability Monitor

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CVE-2020-5231

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.

Published

2020-01-30T22:15:10.220

Last Modified

2024-11-21T05:33:43.587

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 4.8 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:S/C:N/I:P/A:N

Access Vector: NETWORK
Access Complexity: LOW
Authentication: SINGLE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

8.0

Impact Score

2.9

Weaknesses

Type: Secondary
CWE-285
Type: Primary
CWE-276

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	apereo	opencast	< 7.6	Yes
Application	apereo	opencast	8.0	Yes

References

https://github.com/opencast/opencast/commit/72fad0031d8a82c860e2bde0b27570c5042320ee Patch ([email protected])
https://github.com/opencast/opencast/security/advisories/GHSA-94qw-r73x-j7hg Exploit, Third Party Advisory ([email protected])
https://github.com/opencast/opencast/commit/72fad0031d8a82c860e2bde0b27570c5042320ee Patch (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/opencast/opencast/security/advisories/GHSA-94qw-r73x-j7hg Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)