Vulnerability Details : CVE-2020-26234
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.
Products affected by CVE-2020-26234
- cpe:2.3:a:apereo:opencast:*:*:*:*:*:*:*:*
- cpe:2.3:a:apereo:opencast:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-26234
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 17 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-26234
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:N/AC:H/Au:S/C:N/I:P/A:N |
3.9
|
2.9
|
NIST | |
|
4.8
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N |
1.2
|
3.6
|
NIST | |
|
4.8
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N |
1.2
|
3.6
|
GitHub, Inc. |
CWE ids for CVE-2020-26234
-
The product does not properly verify that the source of data or communication is valid.Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)
References for CVE-2020-26234
-
https://github.com/opencast/opencast/security/advisories/GHSA-44cw-p2hm-gpf6
Third Party Advisory
-
https://github.com/opencast/opencast/commit/4225bf90af74557deaf8fb6b80b0705c9621acfc
Patch;Third Party Advisory
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