PT-2020-13967 · Red Hat · Keycloak

Published 2020-12-15 · Updated 2020-12-18 · CVE-2020-14302

Positive Technologies (AI Summary)

CVSS v3.1

4.9

Medium

Base vector

AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions Keycloak versions prior to 13.0.0

Description A flaw was found in Keycloak where an external identity provider, after successful authentication, redirects to a Keycloak endpoint that accepts multiple invocations with the use of the same state parameter. This flaw allows a malicious user to perform replay attacks.

Recommendations For versions prior to 13.0.0, update to version 13.0.0 or later to resolve the issue. As a temporary workaround, consider restricting access to the Keycloak endpoint that accepts the state parameter to minimize the risk of exploitation.

Fix

Weakness Enumeration

CWE-294

Related Identifiers

CVE-2020-14302

RHSA-2021:0967

RHSA-2021:0968

RHSA-2021:0969

Affected Products

Keycloak

References · 5

• https://bugzilla.redhat.com/show_bug.cgi?id=1849584 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-14302 · Security Note
• https://osv.dev/vulnerability/CVE-2020-14302 · Vendor Advisory
• https://t.me/cvenotify/7365 · Telegram Post
• https://t.me/cibsecurity/20880 · Telegram Post