Improper Authentication in Keycloak - CVE-2019-10201

 

Improper Authentication in Keycloak - CVE-2019-10201

Published: August 27, 2019


Vulnerability identifier: #VU20413
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2019-10201
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Keycloak
Affected software:
Keycloak

Detailed vulnerability description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to the Security Assertion Markup Language (SAML) broker does not properly parse messages. A remote attacker can send a specially crafted SAML request, bypass authentication process and gain unauthorized access to the application.


How to mitigate CVE-2019-10201

Install updates from vendor's website.

Sources