Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×

Alerts This Week
Warning Icon 1 524
Alerts This Week
Warning Icon 1 524

Red Hat: RHSA-2014-1390-02 Moderate: Luci Security Update

red hat
Calendar Grey October 14, 2014
Scroller Redhat
Revised luci modules for CentOS address vulnerabilities, errors, and improvements with moderate significance.
Updated luci packages that fix one security issue, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 6

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

Summary

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.

References

https://access.redhat.com/security/cve/CVE-2014-3593 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

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


Advisory ID: RHSA-2014:1390-02
Product: Red Hat Enterprise Linux
Issue date: 2014-10-14

Topic

Updated luci packages that fix one security issue, several bugs, and addvarious enhancements are now available for Red Hat Enterprise Linux 6.Red Hat Product Security has rated this update as having Moderate securityimpact. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available from the CVE link in theReferences section.

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

Bugs Fixed

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, ...)

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.