CVE-2020-5206: high-severity vulnerability in opencast
Authentication Bypass For Endpoints With Anonymous Access in OpenCast
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 1.3%
In Opencast before 7.6 and 8.1, using a remember-me cookie with an arbitrary username can cause Opencast to assume proper authentication for that user even if the remember-me cookie was incorrect given that the attacked endpoint also allows anonymous access. This way, an attacker can, for example, fake a remember-me token, assume the identity of the global system administrator and request non-public content from the search service without ever providing any proper authentication. This problem is fixed in Opencast 7.6 and Opencast 8.1
CVSS:3.1/AV:N/AC:L/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-2021-32623HIGHOpencast vulnerable to billion laughs attack (XML bomb)EPSS 1.3%CVE-2020-5230HIGHOpencast uses unsafe identifiersEPSS 1.2%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%