7.5

CVE-2020-27178: apereo central_authentication_service

CVSS: 7.5v3.1HighModified
AliasesGHSA-q39c-5vh5-vw2p
Published 16-10-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-27178 is a high (CVSS 7.5) vulnerability in apereo central_authentication_service. EPSS estimates a 1.22% chance of exploitation in the next 30 days, higher than 68.2% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
1.22%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 16-10-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.22%

Chance of exploitation in the next 30 days

Percentile

68%

Versus all other CVEs

30-day change

0.00 pp

From 1.22% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.22%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Org.apereo.cas2 products
  • cas-server-support-otp-mfa-core≥ 5.3.0, < 5.3.16 | ≥ 6.0.0, < 6.1.7.2 | ≥ 6.2.0, < 6.2.4
  • cas-server-webapp≥ 5.3.0, < 5.3.16 | ≥ 6.0.0, < 6.1.7.2 | ≥ 6.2.0, < 6.2.4
Apereo1 product

2 vendors · 3 products

References

3 links