CVE-2020-5230: high-severity vulnerability in opencast
Opencast uses unsafe identifiers
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.7epss 1.2%
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.
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/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-2020-5228HIGHOpencast allows unauthorized public access via OAI-PMHEPSS 1.0%CVE-2020-5222MEDIUMHard-Coded Key Used For Remember-me Token in OpenCastEPSS 0.9%