High severity · published Jan 30, 2020
CVE-2020-5222
Opencast before 7.6 and 8.1 enables a remember-me cookie based on a hash created from the username, password, and an additional system key
8.8
CVSS
0.9%
EPSS
No
On KEV
Description
Opencast before 7.6 and 8.1 enables a remember-me cookie based on a hash created from the username, password, and an additional system key. This means that an attacker getting access to a remember-me token for one server can get access to all servers which allow log-in using the same credentials without ever needing the credentials. This problem is fixed in Opencast 7.6 and Opencast 8.1
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Opencast · Apereo
before 7.6; 8.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-5222
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-5222
Patch
https://github.com/opencast/opencast/commit/1a7172c95af8d542a77ae5b153e4c834dd4788a6
Mitigation
https://github.com/opencast/opencast/security/advisories/GHSA-mh8g-hprg-8363
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