CVE-2020-5228: high-severity vulnerability in opencast
Opencast allows unauthorized public access via OAI-PMH
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.6epss 1.0%
Opencast before 8.1 and 7.6 allows unauthorized public access to all media and metadata by default via OAI-PMH. OAI-PMH is part of the default workflow and is activated by default, requiring active user intervention of users to protect media. This leads to users unknowingly handing out public access to events without their knowledge. The problem has been addressed in Opencast 7.6 and 8.1 where the OAI-PMH endpoint is configured to require users with `ROLE_ADMIN` by default. In addition to this, Opencast 9 removes the OAI-PMH publication from the default workflow, making the publication a conscious decision users have to make by updating their workflows.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Affected products
opencast · opencastRelated CVEs — opencast
In the same product, most dangerous first.
CVE-2021-43821CRITICALFiles Accessible to External Parties in OpencastEPSS 2.0%CVE-2021-43807HIGHHTTP Method Spoofing in OpencastEPSS 1.5%CVE-2020-5206HIGHAuthentication Bypass For Endpoints With Anonymous Access in OpenCastEPSS 1.3%CVE-2021-32623HIGHOpencast vulnerable to billion laughs attack (XML bomb)EPSS 1.3%CVE-2020-5230HIGHOpencast uses unsafe identifiersEPSS 1.2%CVE-2020-5222MEDIUMHard-Coded Key Used For Remember-me Token in OpenCastEPSS 0.9%