PT-2020-12319 · Red Hat · Keycloak

Published 2020-11-17 · Updated 2022-02-09 · CVE-2020-10776

Positive Technologies (AI Summary)

CVSS v3.1

4.8

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Keycloak versions prior to 12.0.0

Description A flaw was found in Keycloak where it is possible to add unsafe schemes for the redirect uri parameter. This flaw allows an attacker to perform a Cross-site scripting attack.

Recommendations For versions prior to 12.0.0, update to version 12.0.0 or later to resolve the issue. As a temporary workaround, consider restricting the use of the redirect uri parameter to minimize the risk of exploitation.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2020-10776

GHSA-484Q-784P-8M5H

RHSA-2020:4929

RHSA-2020:4930

RHSA-2020:4932

Affected Products

Keycloak

References · 8

• https://bugzilla.redhat.com/show_bug.cgi?id=1847428 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-484q-784p-8m5h · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-10776 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-10776 · Security Note
• https://github.com/keycloak/keycloak/commit/01be601dbdd77822827de173e34180d9322db85c · Note
• https://t.me/cvenotify/5684 · Telegram Post
• https://t.me/cibsecurity/16428 · Telegram Post
• https://t.me/cvenotify/6257 · Telegram Post