RHEL 6 / 7 : pcs (RHSA-2015:1700)

High Nessus Plugin ID 88636


The remote Red Hat host is missing one or more security updates.


Updated pcs packages that fix two security issues are now available for Red Hat Enterprise Linux 6 and 7.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities.

A command injection flaw was found in the pcsd web UI. An attacker able to trick a victim that was logged in to the pcsd web UI into visiting a specially crafted URL could use this flaw to execute arbitrary code with root privileges on the server hosting the web UI.

A race condition was found in the way the pcsd web UI backend performed authorization of user requests. An attacker could use this flaw to send a request that would be evaluated as originating from a different user, potentially allowing the attacker to perform actions with permissions of a more privileged user. (CVE-2015-5189)

These issues were discovered by Tomas Jelinek of Red Hat.

All pcs users are advised to upgrade to these updated packages, which contain backported patches to correct these issues.


Update the affected pcs, pcs-debuginfo and / or python-clufter packages.

See Also




Plugin Details

Severity: High

ID: 88636

File Name: redhat-RHSA-2015-1700.nasl

Version: $Revision: 2.3 $

Type: local

Agent: unix

Published: 2016/02/09

Modified: 2017/01/06

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 8.5

Temporal Score: 6.3

Vector: CVSS2#AV:N/AC:M/Au:S/C:C/I:C/A:C

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:pcs, p-cpe:/a:redhat:enterprise_linux:pcs-debuginfo, p-cpe:/a:redhat:enterprise_linux:python-clufter, cpe:/o:redhat:enterprise_linux:6, cpe:/o:redhat:enterprise_linux:6.7, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:7.1

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2015/09/01

Reference Information

CVE: CVE-2015-5189, CVE-2015-5190

OSVDB: 126912, 126913

RHSA: 2015:1700