Opencast users with ROLE_COURSE_ADMIN can create new users

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:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

授权机制不恰当

Apereo Opencast 授权问题漏洞

Opencast是Opencast组织的一款用于大规模自动视频捕获，管理和分发的直播视频支撑软件。 Apereo Opencast 7.6之前版本和8.1之前版本中存在授权问题漏洞。该漏洞源于网络系统或产品中缺少身份验证措施或身份验证强度不足。

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