CVE-2020-25654

Name of the Vulnerable Software and Affected Versions Pacemaker versions prior to 1.1.24-rc1 Pacemaker versions prior to 2.0.5-rc2

Description The issue is related to an ACL bypass flaw in Pacemaker, which could allow an attacker with a local account on the cluster and in the haclient group to use IPC communication with various daemons directly, performing tasks that would be prevented by ACLs if they went through the configuration. This could potentially lead to unauthorized access to confidential information or cause a denial of service.

Recommendations For Pacemaker versions prior to 1.1.24-rc1, update to version 1.1.24-rc1 or later to resolve the issue. For Pacemaker versions prior to 2.0.5-rc2, update to version 2.0.5-rc2 or later to resolve the issue. As a temporary workaround, consider restricting access to the haclient group and limiting IPC communication with daemons to minimize the risk of exploitation.