CVE-2020-5230

moderate-risk
Published 2020-01-30

Opencast before 8.1 and 7.6 allows almost arbitrary identifiers for media packages and elements to be used. This can be problematic for operation and security since such identifiers are sometimes used for file system operations which may lead to an attacker being able to escape working directories and write files to other locations. In addition, Opencast's Id.toString(…) vs Id.compact(…) behavior, the latter trying to mitigate some of the file system problems, can cause errors due to identifier mismatch since an identifier may unintentionally change. This issue is fixed in Opencast 7.6 and 8.1.

Do I need to act?

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0.33% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.7/10 High
NETWORK / HIGH complexity

Affected Products (2)

Affected Vendors

Apereo

References (4)

Patch https://github.com/opencast/opencast/commit/bbb473f34ab95497d6c432c81285efb0c739...
Third Party Advisory https://github.com/opencast/opencast/security/advisories/GHSA-w29m-fjp4-qhmq
Patch https://github.com/opencast/opencast/commit/bbb473f34ab95497d6c432c81285efb0c739...
Third Party Advisory https://github.com/opencast/opencast/security/advisories/GHSA-w29m-fjp4-qhmq
31
/ 100
moderate-risk
Severity 23/34 · High
Exploitability 1/34 · Minimal
Exposure 7/34 · Low