ArchLinux: 202106-53: keycloak: certificate verification bypass
Summary
A security issue has been found in Keycloak before version 14.0.0. Depending on the webserver configuration, a malicious user can supply an expired certificate and it would be accepted by Keycloak direct- grant authenticator. This is because Keycloak does not trigger the appropriate timestamp validation.
Resolution
Upgrade to 14.0.0-1.
# pacman -Syu "keycloak>=14.0.0-1"
The problem has been fixed upstream in version 14.0.0.
References
https://bugzilla.redhat.com/show_bug.cgi?id=1912427 https://issues.redhat.com/plugins/servlet/samlsso https://github.com/keycloak/keycloak/pull/8067 https://github.com/keycloak/keycloak/commit/478319348bdfdb9b6d39122f41edf2af79f679bb https://security.archlinux.org/CVE-2020-35509
Workaround
None.