Authentication Bypass For Endpoints With Anonymous Access in OpenCast

In Opencast before 7.6 and 8.1, using a remember-me cookie with an arbitrary username can cause Opencast to assume proper authentication for that user even if the remember-me cookie was incorrect given that the attacked endpoint also allows anonymous access. This way, an attacker can, for example, fake a remember-me token, assume the identity of the global system administrator and request non-public content from the search service without ever providing any proper authentication. This problem is fixed in Opencast 7.6 and Opencast 8.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/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。攻击者可利用该漏洞绕过访问限制。

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