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Category:   Application (Generic)  >   Red Hat Network Client Tools Vendors:   Red Hat
Red Hat Network Configuration Client Discloses Potentially Sensitive Information to Local Users
SecurityTracker Alert ID:  1027661
SecurityTracker URL:  http://securitytracker.com/id/1027661
CVE Reference:   CVE-2012-2679   (Links to External Site)
Date:  Oct 16 2012
Impact:   Disclosure of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Red Hat Network Configuration Client. A local user can obtain potentially sensitive information.

The 'rhncfg-client' tool configures the '/var/log/rhncfg-actions' file with world-readable permissions. A local user can view the contents of the file.

Paul Wouters of Red Hat reported this vulnerability.

Impact:   A local user can obtain potentially sensitive information in the '/var/log/rhncfg-actions' file.
Solution:   The vendor has issued a fix.

The vendor's advisory is available at:

https://rhn.redhat.com/errata/RHSA-2012-1369.html

Vendor URL:  rhn.redhat.com/errata/RHSA-2012-1369.html (Links to External Site)
Cause:   Access control error, Configuration error
Underlying OS:   Linux (Red Hat Enterprise)

Message History:   None.


 Source Message Contents

Date:  Mon, 15 Oct 2012 18:43:47 +0000
Subject:  [RHSA-2012:1369-01] Moderate: rhncfg security, bug fix, and enhancement update

-----BEGIN PGP SIGNED MESSAGE-----
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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Moderate: rhncfg security, bug fix, and enhancement update
Advisory ID:       RHSA-2012:1369-01
Product:           Red Hat Network Tools
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2012-1369.html
Issue date:        2012-10-15
CVE Names:         CVE-2012-2679 
=====================================================================

1. Summary:

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.

2. Relevant releases/architectures:

RHN Tools (v. 5 Client) - noarch
RHN Tools (v. 5 Server) - noarch
RHN Tools (v. 5.3.LL Server) - noarch
RHN Tools (v. 5.6.z Server) - noarch
RHN Tools (v. 6 Client) - noarch
RHN Tools (v. 6 ComputeNode) - noarch
RHN Tools (v. 6 Workstation) - noarch
RHN Tools (v. 6.0.z Server) - noarch
RHN Tools (v. 6.1.z Server) - noarch
RHN Tools (v. 6.2.z Server) - noarch
RHN Tools (v. 6.3.z Server) - noarch

3. 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.

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/knowledge/articles/11258

5. Bugs fixed (http://bugzilla.redhat.com/):

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

6. Package List:

RHN Tools (v. 5 Client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/RHNTOOLS/SRPMS/rhncfg-5.10.27-8.el5sat.src.rpm

noarch:
rhncfg-5.10.27-8.el5sat.noarch.rpm
rhncfg-actions-5.10.27-8.el5sat.noarch.rpm
rhncfg-client-5.10.27-8.el5sat.noarch.rpm
rhncfg-management-5.10.27-8.el5sat.noarch.rpm

RHN Tools (v. 5 Server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/RHNTOOLS/SRPMS/rhncfg-5.10.27-8.el5sat.src.rpm

noarch:
rhncfg-5.10.27-8.el5sat.noarch.rpm
rhncfg-actions-5.10.27-8.el5sat.noarch.rpm
rhncfg-client-5.10.27-8.el5sat.noarch.rpm
rhncfg-management-5.10.27-8.el5sat.noarch.rpm

RHN Tools (v. 5.3.LL Server):

Source:
rhncfg-5.10.27-8.el5sat.src.rpm

noarch:
rhncfg-5.10.27-8.el5sat.noarch.rpm
rhncfg-actions-5.10.27-8.el5sat.noarch.rpm
rhncfg-client-5.10.27-8.el5sat.noarch.rpm
rhncfg-management-5.10.27-8.el5sat.noarch.rpm

RHN Tools (v. 5.6.z Server):

Source:
rhncfg-5.10.27-8.el5sat.src.rpm

noarch:
rhncfg-5.10.27-8.el5sat.noarch.rpm
rhncfg-actions-5.10.27-8.el5sat.noarch.rpm
rhncfg-client-5.10.27-8.el5sat.noarch.rpm
rhncfg-management-5.10.27-8.el5sat.noarch.rpm

RHN Tools (v. 6 Client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/RHNTOOLS/SRPMS/rhncfg-5.10.27-8.el6sat.src.rpm

noarch:
rhncfg-5.10.27-8.el6sat.noarch.rpm
rhncfg-actions-5.10.27-8.el6sat.noarch.rpm
rhncfg-client-5.10.27-8.el6sat.noarch.rpm
rhncfg-management-5.10.27-8.el6sat.noarch.rpm

RHN Tools (v. 6 ComputeNode):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/RHNTOOLS/SRPMS/rhncfg-5.10.27-8.el6sat.src.rpm

noarch:
rhncfg-5.10.27-8.el6sat.noarch.rpm
rhncfg-actions-5.10.27-8.el6sat.noarch.rpm
rhncfg-client-5.10.27-8.el6sat.noarch.rpm
rhncfg-management-5.10.27-8.el6sat.noarch.rpm

RHN Tools (v. 6.0.z Server):

Source:
rhncfg-5.10.27-8.el6sat.src.rpm

noarch:
rhncfg-5.10.27-8.el6sat.noarch.rpm
rhncfg-actions-5.10.27-8.el6sat.noarch.rpm
rhncfg-client-5.10.27-8.el6sat.noarch.rpm
rhncfg-management-5.10.27-8.el6sat.noarch.rpm

RHN Tools (v. 6.1.z Server):

Source:
rhncfg-5.10.27-8.el6sat.src.rpm

noarch:
rhncfg-5.10.27-8.el6sat.noarch.rpm
rhncfg-actions-5.10.27-8.el6sat.noarch.rpm
rhncfg-client-5.10.27-8.el6sat.noarch.rpm
rhncfg-management-5.10.27-8.el6sat.noarch.rpm

RHN Tools (v. 6.2.z Server):

Source:
rhncfg-5.10.27-8.el6sat.src.rpm

noarch:
rhncfg-5.10.27-8.el6sat.noarch.rpm
rhncfg-actions-5.10.27-8.el6sat.noarch.rpm
rhncfg-client-5.10.27-8.el6sat.noarch.rpm
rhncfg-management-5.10.27-8.el6sat.noarch.rpm

RHN Tools (v. 6.3.z Server):

Source:
rhncfg-5.10.27-8.el6sat.src.rpm

noarch:
rhncfg-5.10.27-8.el6sat.noarch.rpm
rhncfg-actions-5.10.27-8.el6sat.noarch.rpm
rhncfg-client-5.10.27-8.el6sat.noarch.rpm
rhncfg-management-5.10.27-8.el6sat.noarch.rpm

RHN Tools (v. 6 Workstation):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/RHNTOOLS/SRPMS/rhncfg-5.10.27-8.el6sat.src.rpm

noarch:
rhncfg-5.10.27-8.el6sat.noarch.rpm
rhncfg-actions-5.10.27-8.el6sat.noarch.rpm
rhncfg-client-5.10.27-8.el6sat.noarch.rpm
rhncfg-management-5.10.27-8.el6sat.noarch.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-2012-2679.html
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2012 Red Hat, Inc.
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