Title: Keycloak Vulnerability Allows Brute Force Attacks Despite Permanent Lockout

CVE-2021-3513 · HIGH Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

A flaw was found in keycloak where a brute force attack is possible even when the permanent lockout feature is enabled. This is due to a wrong error message displayed when wrong credentials are entered. The highest threat from this vulnerability is to confidentiality.

Learn more about our Web Application Penetration Testing UK.