Red Hat Security Advisory 2016-1439-01 - Red Hat Single Sign-On 7.0 is a standalone server, based on the Keycloak project, that provides authentication and standards-based SSO capabilities for web and mobile applications. This asynchronous patch is a security update for JGroups package in Red Hat Single Sign-On 7.0. Security Fix: It was found that JGroups did not require necessary headers for encrypt and auth protocols from new nodes joining the cluster. An attacker could use this flaw to bypass security restrictions, and use this vulnerability to send and receive messages within the cluster, leading to information disclosure, message spoofing, or further possible attacks.
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