RHSA-2013:1603 - Security Advisory

Topic

Updated luci packages that fix two security issues, several bugs, and add
two enhancements are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate
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.

Description

Luci is a web-based high availability administration application.

A flaw was found in the way the luci service was initialized. If a system
administrator started the luci service from a directory that was writable
to by a local user, that user could use this flaw to execute arbitrary code
as the root or luci user. (CVE-2013-4482)

A flaw was found in the way luci generated its configuration file. The file
was created as world readable for a short period of time, allowing a local
user to gain access to the authentication secrets stored in the
configuration file. (CVE-2013-4481)

These issues were discovered by Jan Pokorný of Red Hat.

These updated luci packages include numerous bug fixes and two
enhancements. Space precludes documenting all of these changes in this
advisory. Users are directed to the Red Hat Enterprise Linux 6.5 Technical
Notes, linked to in the References, 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. After installing this update, the luci service will be
restarted automatically.

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/site/articles/11258

Affected Products

• Red Hat Enterprise Linux High Availability for x86_64 6 x86_64
• Red Hat Enterprise Linux High Availability for x86_64 6 i386
• Red Hat Enterprise Linux Resilient Storage for x86_64 6 x86_64
• Red Hat Enterprise Linux Resilient Storage for x86_64 6 i386
• Red Hat Enterprise Linux High Availability (for RHEL Server) from RHUI 6 x86_64
• Red Hat Enterprise Linux High Availability (for RHEL Server) from RHUI 6 i386
• Red Hat Enterprise Linux Resilient Storage (for RHEL Server) from RHUI 6 x86_64
• Red Hat Enterprise Linux Resilient Storage (for RHEL Server) from RHUI 6 i386

Fixes

• BZ - 878149 - Cluster model unexpectedly empty when no node can be contacted
• BZ - 880363 - Error message displayed with letters separated by commas
• BZ - 883008 - Update support for "cmd_prompt", "login_timeout", "power_timeout", "retry_on", "shell_timeout", and "delay" fence agent attributes
• BZ - 886517 - luci should chkconfig ricci on as part of "enabling cluster services"
• BZ - 886576 - "Remove this instance" button has no effect
• BZ - 917747 - idrac, ilo2, ilo3, ilo4, and imm fence agents are not honored in luci
• BZ - 988998 - CVE-2013-4481 luci: short exposure of authentication secrets while generating configuration file
• BZ - 990321 - CVE-2013-4482 luci: paster hidden untrusted path and "command" (callable association) injection
• BZ - 1001835 - module_name parameter for fence_drac5 is optional, not required
• BZ - 1001836 - fence_ilo denoted as HP iLO / iLO2, but the latter has a separate entry

CVEs

• CVE-2013-4481
• CVE-2013-4482

References

• https://access.redhat.com/security/updates/classification/#moderate
• https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/6.5_Technical_Notes/luci.html#RHSA-2013-1603