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CVE-2021-43807GHSA-J4MM-7PJ3-JF7V

HTTP Method Spoofing in Opencast

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 9.10
None on Exploit-DB, Metasploit or GitHub

Summary

Opencast is an Open Source Lecture Capture & Video Management for Education. Opencast versions prior to 9.10 allow HTTP method spoofing, allowing to change the assumed HTTP method via URL parameter. This allows attackers to turn HTTP GET requests into PUT requests or an HTTP form to send DELETE requests. This bypasses restrictions otherwise put on these types of requests and aids in cross-site request forgery (CSRF) attacks, which would otherwise not be possible. The vulnerability allows attackers to craft links or forms which may change the server state. This issue is fixed in Opencast 9.10 and 10.0. You can mitigate the problem by setting the `SameSite=Strict` attribute for your cookies. If this is a viable option for you depends on your integrations. We strongly recommend updating in any case.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • opencast opencast

    fixed in 9.10

  • org.opencastproject:opencast-commonMaven

    fixed in 9.10

References 3

GitHub · opencast/opencast