What is CVE-2021-20262?

CVE-2021-20262 is a medium-severity vulnerability in Red Hat Keycloak, classified under Missing Authentication for Critical Function. CVSS score: 6.8/10. Published 2021-03-09.

How severe is CVE-2021-20262?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Auth bypass in Red Hat Keycloak

CVE-2021-20262

A flaw was found in Keycloak 12.0.0 where re-authentication does not occur while updating the password. This flaw allows an attacker to take over an account if they can obtain temporary, physical access to a user’s browser. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Vulnerability class: Broken Authentication

EPSS: 0.003 (25.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Redhat Keycloak — versions 12.0.0
Redhat Single_sign-on — versions 7.0
N/a Keycloak — versions Keycloak 12.0.0

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

secalert@redhat.com (x_refsource_MISC, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2021-20262?: CVE-2021-20262 is a medium-severity vulnerability in Red Hat Keycloak, classified under Missing Authentication for Critical Function. CVSS score: 6.8/10. Published 2021-03-09.
How severe is CVE-2021-20262?: Medium severity. CVSS v3 base score is 6.8 out of 10.