CVE-2023-2422
Fixed in a distro release EPSS <1%CVSS 5.5
A flaw was found in Keycloak. A Keycloak server configured to support mTLS authentication for OAuth/OpenID clients does not properly verify the client certificate chain. A client that possesses a proper certificate can authorize itself as any other client, therefore, access data that belongs to other clients.
Products: Red Hat Single Sign-On 7, Red Hat Single Sign-On 7.6 for RHEL 7, Red Hat Single Sign-On 7.6 for RHEL 8, Red Hat Single Sign-On 7.6 for RHEL 9, Red Hat RHEL-8 based Middleware Containers
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| Maven | org.keycloak:keycloak-services | 21.1.2 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Red Hat red hat single sign on 7.6 | rh-sso7-keycloak | 0:18.0.8-1.redhat_00001.1.el7sso |
| Red Hat red hat single sign on 7.6 | rh-sso7-keycloak | 0:18.0.8-1.redhat_00001.1.el8sso |
| Red Hat red hat single sign on 7.6 | rh-sso7-keycloak | 0:18.0.8-1.redhat_00001.1.el9sso |
| Red Hat red hat single sign on 7.6 | rh-sso7-keycloak-server | 0:18.0.8-1.redhat_00001.1.el7sso |
| Red Hat red hat single sign on 7.6 | rh-sso7-keycloak-server | 0:18.0.8-1.redhat_00001.1.el8sso |
| Red Hat red hat single sign on 7.6 | rh-sso7-keycloak-server | 0:18.0.8-1.redhat_00001.1.el9sso |