CVE-2017-1000221 Opencast has Incorrect Permission Assignment

What is CVE-2017-1000221?

CVE-2017-1000221 is a medium-severity missing authorization vulnerability in n/a, published on 17 Nov 2017. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

In Opencast 2.2.3 and older if user names overlap, the Opencast search service used for publication to the media modules and players will handle the access control incorrectly so that users only need to match part of the user name used for the access restriction. For example, a user with the role ROLE_USER will have access to recordings published only for ROLE_USER_X.

Weakness: CWE-732

Which versions are affected by CVE-2017-1000221?

2 open source packages ship an affected version, including org.opencastproject:opencast-kernel. It affects 1 product.

Products include Apereo Opencast.

How do I fix CVE-2017-1000221?

Upgrade org.opencastproject:opencast-kernel to 2.2.4 or later.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2017-1000221 being exploited?

There is no known exploitation of CVE-2017-1000221 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2021-43821 Files Accessible to External Parties in Opencast Critical 9.9
• CVE-2020-5206 Authentication Bypass For Endpoints With Anonymous Access in OpenCast High 8.7
• CVE-2021-32623 Opencast vulnerable to billion laughs attack (XML bomb) High 8.1
• CVE-2020-5229 Opencast stores passwords using outdated MD5 hash algorithm High 7.7
• CVE-2020-5230 Opencast uses unsafe identifiers High 7.7

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-hx44-c87v-p6xg.