RHSA-2012:1369 - Security Advisory

Topic

Updated rhncfg packages that fix one security issue, two bugs, and add one
enhancement are now available for Red Hat Network Tools for Red Hat
Enterprise Linux 5 and 6; Red Hat Enterprise Linux 5.3 Long Life; and Red
Hat Enterprise Linux 5.6, 6.0, 6.1, and 6.2 Extended Update Support.

The Red Hat Security Response Team 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.

Description

Red Hat Network Tools provide programs and libraries that allow your system
to use provisioning, monitoring, and configuration management capabilities
provided by Red Hat Network and Red Hat Network Satellite.

It was discovered that the Red Hat Network (RHN) Configuration Client
(rhncfg-client) tool set world-readable permissions on the
"/var/log/rhncfg-actions" file, used to store the output of different
rhncfg-client actions (such as diffing and verifying files). This could
possibly allow a local attacker to obtain sensitive information they would
otherwise not have access to. (CVE-2012-2679)

Note: With this update, rhncfg-client cannot create diffs of files that
are not already world-readable, and "/var/log/rhncfg-actions" can only be
read and written to by the root user.

This issue was discovered by Paul Wouters of Red Hat.

This update also fixes the following bugs:

• When the user attempted to use the "rhncfg-client get" command to

download a backup of deployed configuration files and these configuration
files contained a broken symbolic link, the command failed with an error.
This update ensures that "rhncfg-client get" no longer fails in this
scenario. (BZ#836445)

• The SYNOPSIS section of the rhn-actions-control(8) manual page has been

updated to include the "--report" command line option as expected.
(BZ#820517)

As well, this update adds the following enhancement:

• The rhncfg-manager utility now supports a new command line option,

"--selinux-context". This option can be used to upload files and
directories without setting the Security-Enhanced Linux (SELinux) context.
(BZ#770575)

All users of Red Hat Network Tools are advised to upgrade to these updated
packages, which correct these issues and add this enhancement.

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/knowledge/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.3 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.3 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.2 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.2 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.1 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.1 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.6 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.6 ia64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.6 i386
• Red Hat Enterprise Linux Server - AUS 6.2 x86_64
• Red Hat Enterprise Linux Server - AUS 5.6 x86_64
• Red Hat Enterprise Linux Server - AUS 5.6 ia64
• Red Hat Enterprise Linux Server - AUS 5.6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 6.3 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 6.2 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 6.1 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 5.6 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.3 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.2 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.1 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 5.6 ppc
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64

Fixes

• BZ - 820517 - Missing option in man page for rhn-actions-control.
• BZ - 825275 - CVE-2012-2679 rhncfg: Insecure permissions used for /var/log/rhncfg-actions file

CVEs

• CVE-2012-2679

References

• https://access.redhat.com/security/updates/classification/#moderate