CVE-2021-3827
Fixed in a distro release EPSS 1%
A flaw was found in keycloak, where the default ECP binding flow allows other authentication flows to be bypassed. By exploiting this behavior, an attacker can bypass the MFA authentication by sending a SOAP request with an AuthnRequest and Authorization header with the user's credentials. The highest threat from this vulnerability is to confidentiality and integrity.
Products: redhat keycloak, redhat single_sign-on, redhat openshift_container_platform
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| Maven | org.keycloak:keycloak-saml-core | 18.0.0 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Arch Linux | keycloak | 16.0.0-1 |
| Red Hat red hat single sign on 7.5 | rh-sso7-keycloak | 0:15.0.4-1.redhat_00001.1.el7sso |
| Red Hat red hat single sign on 7.5 | rh-sso7-keycloak | 0:15.0.4-1.redhat_00001.1.el8sso |
| Red Hat red hat single sign on 7.5 | rh-sso7-keycloak-server | 0:15.0.4-1.redhat_00001.1.el7sso |
| Red Hat red hat single sign on 7.5 | rh-sso7-keycloak-server | 0:15.0.4-1.redhat_00001.1.el8sso |