Improper Authentication in Keycloak - CVE-2019-10201
Published: August 27, 2019
Vulnerability identifier: #VU20413
CSH Severity: High
CVSS v4: 8.6 [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]
CVE-ID: CVE-2019-10201
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Keycloak
Red Hat Single Sign-On
Opensuse
Red Hat Single Sign-On
Opensuse
How to mitigate CVE-2019-10201
Install updates from vendor's website.
Keycloak - update to 7.0.0
Red Hat Single Sign-On - update to 7.3.3
Red Hat Single Sign-On - update to 7.3.3