Description
Red Hat Keycloak before version 2.4.0 did not correctly check permissions when handling service account user deletion requests sent to the rest server. An attacker with service account authentication could use this flaw to bypass normal permissions and delete users in a separate realm.
Remediation
References
http://rhn.redhat.com/errata/RHSA-2017-0876.html
http://www.securityfocus.com/bid/97392
http://www.securitytracker.com/id/1038180
https://access.redhat.com/errata/RHSA-2017:0872
https://access.redhat.com/errata/RHSA-2017:0873
https://bugzilla.redhat.com/show_bug.cgi?id=1388988
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