CentOS Errata and Security Advisory CESA-2015:0980
The pcs packages provide a command-line tool and a web UI to configure and manage the Pacemaker and Corosync tools.
It was found that the pcs daemon did not sign cookies containing session data that were sent to clients connecting via the pcsd web UI. A remote attacker could use this flaw to forge cookies and bypass authorization checks, possibly gaining elevated privileges in the pcsd web UI. (CVE-2015-1848)
This issue was discovered by Tomas Jelinek of Red Hat.
This update also fixes the following bug:
All pcs users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, the pcsd daemon will be restarted automatically.
Merged security bulletin from advisories: http://lists.centos.org/pipermail/centos-announce/2015-May/021126.html
Affected packages: pcs python-clufter
Upstream details at: https://rhn.redhat.com/errata/RHSA-2015-0980.html