VULNERABILITY INTELLIGENCE
CVE-2020-5206
CVSS score8.7 HIGH
EPSS probability1.29%
CISA KEVNot currently listed
Published2020-01-30
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Description
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
Weakness classification
- security-advisories@github.com: CWE-285
- nvd@nist.gov: CWE-287
Primary references
- security-advisories@github.com — Patch
- security-advisories@github.com — Mitigation, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch
- af854a3a-2127-422b-91ae-364da2661108 — Mitigation, Third Party Advisory