CVE-2020-26234
4.8 · MEDIUMOverview
CVE-2020-26234 is a medium-severity vulnerability affecting apereo opencast. It was published on December 8, 2020 and has a CVSS 3.1 base score of 4.8 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 4.8, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from apereo. Update opencast to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| apereo | opencast | >= 0, < 7.9 | Affected |
References
Frequently Asked Questions
What is CVE-2020-26234?
CVE-2020-26234 is a medium-severity vulnerability affecting apereo opencast. It was published on December 8, 2020 and has a CVSS 3.1 base score of 4.8 (MEDIUM).
How severe is CVE-2020-26234?
This vulnerability has a CVSS 3.1 base score of 4.8, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2020-26234?
Check the references section for vendor advisories and patches from apereo. Update opencast to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-26234?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-26234 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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