What’s Vulnerable › Vulnerabilities
CVE-2020-27178
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2020-10-16 · updated 2026-06-17
Description
Apereo CAS 5.3.x before 5.3.16, 6.x before 6.1.7.2, 6.2.x before 6.2.4, and 6.3.x before 6.3.0-RC4 mishandles secret keys with Google Authenticator for multifactor authentication.
Affected products
- Apereo Central Authentication Service: from 5.3.0 before 5.3.16; from 6.0.0 before 6.1.7.2; from 6.2.0 before 6.2.4; 6.3.0-rc1, 6.3.0-rc2, 6.3.0-rc3 — fixed in 5.3.16, 6.1.7.2, 6.2.4
How to fix
Upgrade to a fixed version: Apereo Central Authentication Service 5.3.16, 6.1.7.2, 6.2.4. Check the vendor advisory for mitigations.
References
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