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Category:   Application (Generic)  >   GNOME NetworkManager Vendors:   Gnome Development Team
(Red Hat Issues Fix) GNOME NetworkManager Missing Certificate Validation Check Lets Remote Users Spoof Valid Networks
SecurityTracker Alert ID:  1023605
SecurityTracker URL:  http://securitytracker.com/id/1023605
CVE Reference:   CVE-2009-4144   (Links to External Site)
Date:  Feb 16 2010
Impact:   Disclosure of system information, Disclosure of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in GNOME NetworkManager. A remote user can spoof a valid network.

When a user creates a WPA Enterprise or 802.1x wireless network connection that uses a Certificate Authority (CA) issued certificate and then later removes that CA certificate file, the system will fail to verify subsequent connection attempts.
Impact:   A remote user can spoof a valid network in certain situations.
Solution:   Red Hat has issued a fix.

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2010-0108.html
Vendor URL:  projects.gnome.org/NetworkManager/ (Links to External Site)
Cause:   Authentication error
Underlying OS:   Linux (Red Hat Enterprise)

Message History:   This archive entry is a follow-up to the message listed below.
Feb 16 2010 GNOME NetworkManager Missing Certificate Validation Check Lets Remote Users Spoof Valid Networks


 Source Message Contents
Date:  Tue, 16 Feb 2010 12:06:46 -0500
Subject:  [RHSA-2010:0108-01] Moderate: NetworkManager security update

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

=====================================================================
                   Red Hat Security Advisory

Synopsis:          Moderate: NetworkManager security update
Advisory ID:       RHSA-2010:0108-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2010-0108.html
Issue date:        2010-02-16
CVE Names:         CVE-2009-4144 CVE-2009-4145 
=====================================================================

1. Summary:

Updated NetworkManager packages that fix two security issues are now
available for Red Hat Enterprise Linux 5.

This update has been rated as having moderate security impact by the Red
Hat Security Response Team.

2. Relevant releases/architectures:

RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

3. Description:

NetworkManager is a network link manager that attempts to keep a wired or
wireless network connection active at all times.

A missing network certificate verification flaw was found in
NetworkManager. If a user created a WPA Enterprise or 802.1x wireless
network connection that was verified using a Certificate Authority (CA)
certificate, and then later removed that CA certificate file,
NetworkManager failed to verify the identity of the network on the
following connection attempts. In these situations, a malicious wireless
network spoofing the original network could trick a user into disclosing
authentication credentials or communicating over an untrusted network.
(CVE-2009-4144)

An information disclosure flaw was found in NetworkManager's
nm-connection-editor D-Bus interface. If a user edited network connection
options using nm-connection-editor, a summary of those changes was
broadcasted over the D-Bus message bus, possibly disclosing sensitive
information (such as wireless network authentication credentials) to other
local users. (CVE-2009-4145)

Users of NetworkManager should upgrade to these updated packages, which
contain backported patches to correct these issues.

4. Solution:

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network.  Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/docs/DOC-11259

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

546117 - CVE-2009-4145 NetworkManager: information disclosure by nm-connection-editor
546795 - CVE-2009-4144 NetworkManager: WPA enterprise network not verified when certificate is removed

6. Package List:

Red Hat Enterprise Linux Desktop (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/NetworkManager-0.7.0-9.el5_4.src.rpm

i386:
NetworkManager-0.7.0-9.el5_4.i386.rpm
NetworkManager-debuginfo-0.7.0-9.el5_4.i386.rpm
NetworkManager-glib-0.7.0-9.el5_4.i386.rpm
NetworkManager-gnome-0.7.0-9.el5_4.i386.rpm

x86_64:
NetworkManager-0.7.0-9.el5_4.i386.rpm
NetworkManager-0.7.0-9.el5_4.x86_64.rpm
NetworkManager-debuginfo-0.7.0-9.el5_4.i386.rpm
NetworkManager-debuginfo-0.7.0-9.el5_4.x86_64.rpm
NetworkManager-glib-0.7.0-9.el5_4.i386.rpm
NetworkManager-glib-0.7.0-9.el5_4.x86_64.rpm
NetworkManager-gnome-0.7.0-9.el5_4.x86_64.rpm

RHEL Desktop Workstation (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/NetworkManager-0.7.0-9.el5_4.src.rpm

i386:
NetworkManager-debuginfo-0.7.0-9.el5_4.i386.rpm
NetworkManager-devel-0.7.0-9.el5_4.i386.rpm
NetworkManager-glib-devel-0.7.0-9.el5_4.i386.rpm

x86_64:
NetworkManager-debuginfo-0.7.0-9.el5_4.i386.rpm
NetworkManager-debuginfo-0.7.0-9.el5_4.x86_64.rpm
NetworkManager-devel-0.7.0-9.el5_4.i386.rpm
NetworkManager-devel-0.7.0-9.el5_4.x86_64.rpm
NetworkManager-glib-devel-0.7.0-9.el5_4.i386.rpm
NetworkManager-glib-devel-0.7.0-9.el5_4.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/NetworkManager-0.7.0-9.el5_4.src.rpm

i386:
NetworkManager-0.7.0-9.el5_4.i386.rpm
NetworkManager-debuginfo-0.7.0-9.el5_4.i386.rpm
NetworkManager-devel-0.7.0-9.el5_4.i386.rpm
NetworkManager-glib-0.7.0-9.el5_4.i386.rpm
NetworkManager-glib-devel-0.7.0-9.el5_4.i386.rpm
NetworkManager-gnome-0.7.0-9.el5_4.i386.rpm

ia64:
NetworkManager-0.7.0-9.el5_4.ia64.rpm
NetworkManager-debuginfo-0.7.0-9.el5_4.ia64.rpm
NetworkManager-devel-0.7.0-9.el5_4.ia64.rpm
NetworkManager-glib-0.7.0-9.el5_4.ia64.rpm
NetworkManager-glib-devel-0.7.0-9.el5_4.ia64.rpm
NetworkManager-gnome-0.7.0-9.el5_4.ia64.rpm

ppc:
NetworkManager-0.7.0-9.el5_4.ppc.rpm
NetworkManager-0.7.0-9.el5_4.ppc64.rpm
NetworkManager-debuginfo-0.7.0-9.el5_4.ppc.rpm
NetworkManager-debuginfo-0.7.0-9.el5_4.ppc64.rpm
NetworkManager-devel-0.7.0-9.el5_4.ppc.rpm
NetworkManager-devel-0.7.0-9.el5_4.ppc64.rpm
NetworkManager-glib-0.7.0-9.el5_4.ppc.rpm
NetworkManager-glib-0.7.0-9.el5_4.ppc64.rpm
NetworkManager-glib-devel-0.7.0-9.el5_4.ppc.rpm
NetworkManager-glib-devel-0.7.0-9.el5_4.ppc64.rpm
NetworkManager-gnome-0.7.0-9.el5_4.ppc.rpm

x86_64:
NetworkManager-0.7.0-9.el5_4.i386.rpm
NetworkManager-0.7.0-9.el5_4.x86_64.rpm
NetworkManager-debuginfo-0.7.0-9.el5_4.i386.rpm
NetworkManager-debuginfo-0.7.0-9.el5_4.x86_64.rpm
NetworkManager-devel-0.7.0-9.el5_4.i386.rpm
NetworkManager-devel-0.7.0-9.el5_4.x86_64.rpm
NetworkManager-glib-0.7.0-9.el5_4.i386.rpm
NetworkManager-glib-0.7.0-9.el5_4.x86_64.rpm
NetworkManager-glib-devel-0.7.0-9.el5_4.i386.rpm
NetworkManager-glib-devel-0.7.0-9.el5_4.x86_64.rpm
NetworkManager-gnome-0.7.0-9.el5_4.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://www.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2009-4144.html
https://www.redhat.com/security/data/cve/CVE-2009-4145.html
http://www.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2010 Red Hat, Inc.
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