CVE Vulnerability

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.

4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/opencast/opencast/commit/72fad0031d8a82c860e2bde0b27570c5042320ee Patch
https://github.com/opencast/opencast/security/advisories/GHSA-94qw-r73x-j7hg Exploit Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:apereo:opencast:8.0:*:*:*:*:*:*:*
cpe:2.3:a:apereo:opencast:*:*:*:*:*:*:*:*
Information

Published : 2020-01-30 10:15

Updated : 2020-02-10 09:55

NVD link : CVE-2020-5231

Mitre link : CVE-2020-5231

Products Affected
No products.
CWE
CWE-276

Incorrect Default Permissions