Keycloak is vulnerable to IDN homograph attack

GHSA-pf38-cw3p-22q9 · CVE-2021-3424

Published Apr 28, 2022 · Modified Nov 8, 2023

Description

A flaw was found in keycloak as shipped in Red Hat Single Sign-On 7.4 where IDN homograph attacks are possible. A malicious user can register himself with a name already registered and trick admin to grant him extra privileges.

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-3424
WEB https://bugzilla.redhat.com/show_bug.cgi?id=1933320
PACKAGE https://github.com/keycloak/keycloak

Ready to move

Start Securing

Start for Free Get Demo

Free, no credit card | First findings in minutes