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Red Hat Security Advisory
Synopsis: Moderate: pcs security, bug fix, and enhancement update
Advisory ID: RHSA-2016:2596-02
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-2596.html
Issue date: 2016-11-03
CVE Names: CVE-2016-0720 CVE-2016-0721
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1. Summary:
An update for pcs is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact
of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Server High Availability (v. 7) – s390x, x86_64
Red Hat Enterprise Linux Server Resilient Storage (v. 7) – s390x, x86_64
3. Description:
The pcs packages provide a command-line configuration system for the
Pacemaker and Corosync utilities.
The following packages have been upgraded to a newer upstream version: pcs
(0.9.152). (BZ#1299847)
Security Fix(es):
* A Cross-Site Request Forgery (CSRF) flaw was found in the pcsd web UI. A
remote attacker could provide a specially crafted web page that, when
visited by a user with a valid pcsd session, would allow the attacker to
trigger requests on behalf of the user, for example removing resources or
restarting/removing nodes. (CVE-2016-0720)
* It was found that pcsd did not invalidate cookies on the server side when
a user logged out. This could potentially allow an attacker to perform
session fixation attacks on pcsd. (CVE-2016-0721)
These issues were discovered by Martin Prpic (Red Hat Product Security).
Additional Changes:
For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.3 Release Notes linked from the References section.
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
5. Bugs fixed (https://bugzilla.redhat.com/):
1158500 – add support for utilization attributes
1164402 – Support for sbd configuration is needed in pcs
1207405 – RFE: please adjust timeouts for pcsd check (or allow to disable them)
1219581 – [CLI] particular help screens inconsistent in indication of default sub^n-commands
1220512 – pcs resource cleanup improvements
1225423 – pcs should allow to remove a dead node from a cluster
1225946 – [CLI] minor cleanups in built-in documentation
1229822 – [RFE] make “cluster setup –start”, “cluster start” and “cluster standby” support –wait as well
1231858 – resource/fence agent options form needs an overhaul
1248990 – Specifying a non-existing id in ACL role permission produces an invalid CIB
1249085 – ‘pcs resource delete’ doesn’t delete resource referenced in acl
1252050 – Rewrite pcsd launch script
1264360 – pcs Web UI doesn’t indicate unmanaged resources
1269242 – pcs needs to be able to view status and config on nodes that are not part of any cluster, but have a cib.xml file
1281364 – colocation set constraints missing in web UI
1281371 – Cluster Properties page in web UI needs an overhaul
1281391 – web UI lacks ability to move resources within a resource group
1286664 – pcsd: deleting groups/clones from older cluster returns Internal Server Error
1287320 – When referencing a stonith/resource agent without a provider and the fence/resource agents fails to get metadata causes pcs to traceback
1290512 – pcs doesn’t support putting Pacemaker Remote nodes into standby
1298585 – [RFE] pcs status output could be simpler when constraints are in place
1299614 – CVE-2016-0720 pcs: Cross-Site Request Forgery in web UI
1299615 – CVE-2016-0721 pcs: cookies are not invalidated upon logout
1299847 – pcs rebase bug for 7.3
1301993 – [RFE] pcs property list/show could have a –node filter
1302010 – pcs property show <property> shows all node properties unfiltered
1303136 – Cannot create a new resource with the same name of a one failed and deleted before, until cleanup
1305786 – Unsanitized input in username field on login page
1315357 – [packaging] pcsd.service shipped twice (under different locations)
1315652 – Option to disable particular TLS version and ciphers with pcsd
1315743 – [packaging] /etc/sysconfig/pcsd is not marked as a config file
1327739 – Need a way to set expected votes on a live system
1328066 – [cli] pcs makes a disservice to CIB-accumulate-and-push use cases by not coping with “cib –config” file (recommended!) passed as “-f <file>” to cib-modifying commands
1329472 – Cannot recreate remote node resource
1341114 – [packaging] pcs should mark known (existing or not) %config files in the spec (/etc/sysconfig/pcsd, /var/lib/pcsd/tokens, …)
1346852 – [GUI] Bad Request when resource removal takes longer than pcs expects
1349465 – [bash-completion] put it under $(pkg-config –variable=completionsdir bash-completion) to allow for dynamic loading
1354498 – [cli] pcs should except KeyboardInterrupt at least around raw_input builtin invocation
1357945 – [clufter integration] clufter is distribution-sensitive wrt. new features so pass the current one on cluster.conf/corosync.conf match and allow user’s override
1359154 – pcs authentication command does not trigger authentication of nodes against each other
1366307 – [pcsd] Badly designed usage of HTML ID attributes may cause unexpected behavior with certain resource names
6. Package List:
Red Hat Enterprise Linux Server High Availability (v. 7):
Source:
pcs-0.9.152-10.el7.src.rpm
s390x:
pcs-0.9.152-10.el7.s390x.rpm
pcs-debuginfo-0.9.152-10.el7.s390x.rpm
x86_64:
pcs-0.9.152-10.el7.x86_64.rpm
pcs-debuginfo-0.9.152-10.el7.x86_64.rpm
Red Hat Enterprise Linux Server Resilient Storage (v. 7):
Source:
pcs-0.9.152-10.el7.src.rpm
s390x:
pcs-0.9.152-10.el7.s390x.rpm
pcs-debuginfo-0.9.152-10.el7.s390x.rpm
x86_64:
pcs-0.9.152-10.el7.x86_64.rpm
pcs-debuginfo-0.9.152-10.el7.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2016-0720
https://access.redhat.com/security/cve/CVE-2016-0721
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/7.3_Release_Notes/index.html
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2016 Red Hat, Inc.
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