RedHat: RHSA-2015-1700:01 Important: pcs security update
Summary
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. (CVE-2015-5190)
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 Tomáš JelÃnek of Red Hat.
All pcs users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues.
Summary
Solution
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
For details on how to apply this update, refer to:
https://access.redhat.com/articles/11258
References
https://access.redhat.com/security/cve/CVE-2015-5189 https://access.redhat.com/security/cve/CVE-2015-5190 https://access.redhat.com/security/updates/classification/#important
Package List
Red Hat Enterprise Linux High Availability (v. 6):
Source:
pcs-0.9.139-9.el6_7.1.src.rpm
i386:
pcs-0.9.139-9.el6_7.1.i686.rpm
pcs-debuginfo-0.9.139-9.el6_7.1.i686.rpm
x86_64:
pcs-0.9.139-9.el6_7.1.x86_64.rpm
pcs-debuginfo-0.9.139-9.el6_7.1.x86_64.rpm
Red Hat Enterprise Linux Resilient Storage (v. 6):
Source:
pcs-0.9.139-9.el6_7.1.src.rpm
i386:
pcs-0.9.139-9.el6_7.1.i686.rpm
pcs-debuginfo-0.9.139-9.el6_7.1.i686.rpm
x86_64:
pcs-0.9.139-9.el6_7.1.x86_64.rpm
pcs-debuginfo-0.9.139-9.el6_7.1.x86_64.rpm
Red Hat Enterprise Linux Server High Availability (v. 7):
Source:
pcs-0.9.137-13.el7_1.4.src.rpm
x86_64:
pcs-0.9.137-13.el7_1.4.x86_64.rpm
pcs-debuginfo-0.9.137-13.el7_1.4.x86_64.rpm
python-clufter-0.9.137-13.el7_1.4.x86_64.rpm
Red Hat Enterprise Linux Server Resilient Storage (v. 7):
Source:
pcs-0.9.137-13.el7_1.4.src.rpm
x86_64:
pcs-0.9.137-13.el7_1.4.x86_64.rpm
pcs-debuginfo-0.9.137-13.el7_1.4.x86_64.rpm
python-clufter-0.9.137-13.el7_1.4.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/
Topic
Updated pcs packages that fix two security issues are now available for RedHat Enterprise Linux 6 and 7.Red Hat Product Security has rated this update as having Important securityimpact. Common Vulnerability Scoring System (CVSS) base scores, which givedetailed severity ratings, are available for each vulnerability from theCVE links in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux High Availability (v. 6) - i386, x86_64
Red Hat Enterprise Linux Resilient Storage (v. 6) - i386, x86_64
Red Hat Enterprise Linux Server High Availability (v. 7) - x86_64
Red Hat Enterprise Linux Server Resilient Storage (v. 7) - x86_64
Bugs Fixed
1252805 - CVE-2015-5189 pcs: Incorrect authorization when using pcs web UI
1252813 - CVE-2015-5190 pcs: Command injection with root privileges.