Kurz gesagt
- CVE-2020-26234 ist eine Schwachstelle (MITTEL (CVSS 4.8)) in org.opencastproject:opencast-kernel, opencast (apereo).
- Wahrscheinlichkeit einer Ausnutzung in den nächsten 30 Tagen (EPSS): 0.28%, höher als bei 20.4% aller Schwachstellen.
- Abhilfe: auf 8.9, 7.9 oder neuer aktualisieren.
Description
Opencast before version 8.9 and 7.9 disables HTTPS hostname verification of its HTTP client used for a large portion of Opencast's HTTP requests.
Hostname verification is an important part when using HTTPS to ensure that the presented certificate is valid for the host. Disabling it can allow for man-in-the-middle attacks.
Patches
This problem is fixed in Opencast 7.9 and Opencast 8.9
Self-Signed Certificates
Please be aware that fixing the problem means that Opencast will not simply accept any self-signed certificates any longer without properly importing them. If you need those, please make sure to import them into the Java key store. Better yet, get a valid certificate e.g. from Let's Encrypt.
NVD description
Opencast before versions 8.9 and 7.9 disables HTTPS hostname verification of its HTTP client used for a large portion of Opencast's HTTP requests. Hostname verification is an important part when using HTTPS to ensure that the presented certificate is valid for the host. Disabling it can allow for man-in-the-middle attacks. This problem is fixed in Opencast 7.9 and Opencast 8.8 Please be aware that fixing the problem means that Opencast will not simply accept any self-signed certificates any longer without properly importing them. If you need those, please make sure to import them into the Java key store. Better yet, get a valid certificate.
Weitere Schwachstellen in org.opencastproject:opencast-kernel
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