Red Hat Security Advisory 2014-1390-02 - Luci is a web-based high availability administration application. It was discovered that luci used eval() on inputs containing strings from the cluster configuration file when generating its web pages. An attacker with privileges to create or edit the cluster configuration could use this flaw to execute arbitrary code as the luci user on a host running luci. This issue was discovered by Jan Pokorny of Red Hat. These updated luci packages also include several bug fixes and multiple enhancements. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Enterprise Linux 6.6 Technical Notes, linked to in the References section, for information on the most significant of these changes.
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Red Hat Security Advisory
Synopsis: Moderate: luci security, bug fix, and enhancement update
Advisory ID: RHSA-2014:1390-02
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-1390.html
Issue date: 2014-10-14
CVE Names: CVE-2014-3593
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1. Summary:
Updated luci packages that fix one security issue, several bugs, and add
various enhancements are now available for Red Hat Enterprise Linux 6.
Red Hat Product Security has rated this update as having Moderate security
impact. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available from the CVE link in the
References section.
2. 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
3. Description:
Luci is a web-based high availability administration application.
It was discovered that luci used eval() on inputs containing strings from
the cluster configuration file when generating its web pages. An attacker
with privileges to create or edit the cluster configuration could use this
flaw to execute arbitrary code as the luci user on a host running luci.
(CVE-2014-3593)
This issue was discovered by Jan Pokorný of Red Hat.
These updated luci packages also include several bug fixes and multiple
enhancements. Space precludes documenting all of these changes in this
advisory. Users are directed to the Red Hat Enterprise Linux 6.6 Technical
Notes, linked to in the References section, for information on the most
significant of these changes.
All luci users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues and add these
enhancements.
4. Solution:
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/articles/11258
5. Bugs fixed (https://bugzilla.redhat.com/):
855112 - Encode XML-unsafe characters from user input as XML entities
982771 - luci vs. sessions: check length of secret on startup
989005 - CVE-2014-3593 luci: privilege escalation through cluster with specially crafted configuration
1026374 - Add a custom luci launcher allowing sane Python runtime + SELinux coexistence
1100817 - luci to cope with virtual machine in both plain and service-like resource (incl. complex defs in cluster.conf)
1117398 - Sync luci with recent changes in the schema for RHEL 6.6 (RAs, FAs, rgmanager, fenced, ...)
6. Package List:
Red Hat Enterprise Linux High Availability (v. 6):
Source:
luci-0.26.0-63.el6.src.rpm
i386:
luci-0.26.0-63.el6.i686.rpm
luci-debuginfo-0.26.0-63.el6.i686.rpm
x86_64:
luci-0.26.0-63.el6.x86_64.rpm
luci-debuginfo-0.26.0-63.el6.x86_64.rpm
Red Hat Enterprise Linux Resilient Storage (v. 6):
Source:
luci-0.26.0-63.el6.src.rpm
i386:
luci-0.26.0-63.el6.i686.rpm
luci-debuginfo-0.26.0-63.el6.i686.rpm
x86_64:
luci-0.26.0-63.el6.x86_64.rpm
luci-debuginfo-0.26.0-63.el6.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/#package
7. References:
https://www.redhat.com/security/data/cve/CVE-2014-3593.html
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/6.6_Technical_Notes/luci.html#RHSA-2014-1390
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2014 Red Hat, Inc.
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