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Category:   Application (Generic)  >   Red Hat Subscription Manager Vendors:   Red Hat
Red Hat Subscription Manager Certificate Validation Flaw Lets Remote Users Obtain Credentials
SecurityTracker Alert ID:  1028520
SecurityTracker URL:  http://securitytracker.com/id/1028520
CVE Reference:   CVE-2012-6137   (Links to External Site)
Date:  May 7 2013
Impact:   Disclosure of authentication information
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Red Hat Subscription Manager. A remote user can obtain credentials in certain cases.

The rhn-migrate-classic-to-rhsm tool does not verify the Red Hat Network Classic server's X.509 certificate when migrating system profiles registered with Red Hat Network Classic to Certificate-based Red Hat Network. A remote user can conduct a man-in-the-middle attack to obtain the target user's Red Hat Network credentials.

Florian Weimer of the Red Hat Product Security Team reported this vulnerability.

Impact:   A remote user can conduct a man-in-the-middle attack to obtain the target user's Red Hat Network credentials.
Solution:   The vendor has issued a fix.

The vendor's advisory is available at:

https://rhn.redhat.com/errata/RHSA-2013-0788.html

Vendor URL:  rhn.redhat.com/errata/RHSA-2013-0788.html (Links to External Site)
Cause:   Authentication error
Underlying OS:   Linux (Red Hat Enterprise)

Message History:   None.


 Source Message Contents

Date:  Mon, 6 May 2013 19:45:19 +0000
Subject:  [RHSA-2013:0788-01] Moderate: subscription-manager security update

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

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

Synopsis:          Moderate: subscription-manager security update
Advisory ID:       RHSA-2013:0788-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2013-0788.html
Issue date:        2013-05-06
CVE Names:         CVE-2012-6137 
=====================================================================

1. Summary:

Updated subscription-manager packages that fix one security issue are now
available for Red Hat Enterprise Linux 5 and 6.

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:

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

3. Description:

The subscription-manager packages provide programs and libraries to allow
users to manage subscriptions and yum repositories from the Red Hat
Entitlement platform.

It was discovered that the rhn-migrate-classic-to-rhsm tool did not verify
the Red Hat Network Classic server's X.509 certificate when migrating
system profiles registered with Red Hat Network Classic to
Certificate-based Red Hat Network. An attacker could use this flaw to
conduct man-in-the-middle attacks, allowing them to obtain the user's Red
Hat Network credentials. (CVE-2012-6137)

This issue was discovered by Florian Weimer of the Red Hat Product Security
Team.

All users of subscription-manager are advised to upgrade to these updated
packages, which contain a backported patch to fix this issue.

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/):

885130 - CVE-2012-6137 subscription-manager: rhn-migrate-classic-to-rhsm missing SSL certificate verification

6. Package List:

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/subscription-manager-1.0.24.1-1.el5_9.src.rpm

i386:
subscription-manager-1.0.24.1-1.el5_9.i386.rpm
subscription-manager-debuginfo-1.0.24.1-1.el5_9.i386.rpm
subscription-manager-firstboot-1.0.24.1-1.el5_9.i386.rpm
subscription-manager-gui-1.0.24.1-1.el5_9.i386.rpm
subscription-manager-migration-1.0.24.1-1.el5_9.i386.rpm

x86_64:
subscription-manager-1.0.24.1-1.el5_9.x86_64.rpm
subscription-manager-debuginfo-1.0.24.1-1.el5_9.x86_64.rpm
subscription-manager-firstboot-1.0.24.1-1.el5_9.x86_64.rpm
subscription-manager-gui-1.0.24.1-1.el5_9.x86_64.rpm
subscription-manager-migration-1.0.24.1-1.el5_9.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/subscription-manager-1.0.24.1-1.el5_9.src.rpm

i386:
subscription-manager-1.0.24.1-1.el5_9.i386.rpm
subscription-manager-debuginfo-1.0.24.1-1.el5_9.i386.rpm
subscription-manager-firstboot-1.0.24.1-1.el5_9.i386.rpm
subscription-manager-gui-1.0.24.1-1.el5_9.i386.rpm
subscription-manager-migration-1.0.24.1-1.el5_9.i386.rpm

ia64:
subscription-manager-1.0.24.1-1.el5_9.ia64.rpm
subscription-manager-debuginfo-1.0.24.1-1.el5_9.ia64.rpm
subscription-manager-firstboot-1.0.24.1-1.el5_9.ia64.rpm
subscription-manager-gui-1.0.24.1-1.el5_9.ia64.rpm
subscription-manager-migration-1.0.24.1-1.el5_9.ia64.rpm

ppc:
subscription-manager-1.0.24.1-1.el5_9.ppc.rpm
subscription-manager-debuginfo-1.0.24.1-1.el5_9.ppc.rpm
subscription-manager-firstboot-1.0.24.1-1.el5_9.ppc.rpm
subscription-manager-gui-1.0.24.1-1.el5_9.ppc.rpm
subscription-manager-migration-1.0.24.1-1.el5_9.ppc.rpm

s390x:
subscription-manager-1.0.24.1-1.el5_9.s390x.rpm
subscription-manager-debuginfo-1.0.24.1-1.el5_9.s390x.rpm
subscription-manager-firstboot-1.0.24.1-1.el5_9.s390x.rpm
subscription-manager-gui-1.0.24.1-1.el5_9.s390x.rpm
subscription-manager-migration-1.0.24.1-1.el5_9.s390x.rpm

x86_64:
subscription-manager-1.0.24.1-1.el5_9.x86_64.rpm
subscription-manager-debuginfo-1.0.24.1-1.el5_9.x86_64.rpm
subscription-manager-firstboot-1.0.24.1-1.el5_9.x86_64.rpm
subscription-manager-gui-1.0.24.1-1.el5_9.x86_64.rpm
subscription-manager-migration-1.0.24.1-1.el5_9.x86_64.rpm

Red Hat Enterprise Linux Desktop (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/subscription-manager-1.1.23.1-1.el6_4.src.rpm

i386:
subscription-manager-1.1.23.1-1.el6_4.i686.rpm
subscription-manager-debuginfo-1.1.23.1-1.el6_4.i686.rpm
subscription-manager-firstboot-1.1.23.1-1.el6_4.i686.rpm
subscription-manager-gui-1.1.23.1-1.el6_4.i686.rpm
subscription-manager-migration-1.1.23.1-1.el6_4.i686.rpm

x86_64:
subscription-manager-1.1.23.1-1.el6_4.x86_64.rpm
subscription-manager-debuginfo-1.1.23.1-1.el6_4.x86_64.rpm
subscription-manager-firstboot-1.1.23.1-1.el6_4.x86_64.rpm
subscription-manager-gui-1.1.23.1-1.el6_4.x86_64.rpm
subscription-manager-migration-1.1.23.1-1.el6_4.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/subscription-manager-1.1.23.1-1.el6_4.src.rpm

x86_64:
subscription-manager-1.1.23.1-1.el6_4.x86_64.rpm
subscription-manager-debuginfo-1.1.23.1-1.el6_4.x86_64.rpm
subscription-manager-migration-1.1.23.1-1.el6_4.x86_64.rpm

Red Hat Enterprise Linux HPC Node Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/subscription-manager-1.1.23.1-1.el6_4.src.rpm

x86_64:
subscription-manager-debuginfo-1.1.23.1-1.el6_4.x86_64.rpm
subscription-manager-firstboot-1.1.23.1-1.el6_4.x86_64.rpm
subscription-manager-gui-1.1.23.1-1.el6_4.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/subscription-manager-1.1.23.1-1.el6_4.src.rpm

i386:
subscription-manager-1.1.23.1-1.el6_4.i686.rpm
subscription-manager-debuginfo-1.1.23.1-1.el6_4.i686.rpm
subscription-manager-firstboot-1.1.23.1-1.el6_4.i686.rpm
subscription-manager-gui-1.1.23.1-1.el6_4.i686.rpm
subscription-manager-migration-1.1.23.1-1.el6_4.i686.rpm

ppc64:
subscription-manager-1.1.23.1-1.el6_4.ppc64.rpm
subscription-manager-debuginfo-1.1.23.1-1.el6_4.ppc64.rpm
subscription-manager-firstboot-1.1.23.1-1.el6_4.ppc64.rpm
subscription-manager-gui-1.1.23.1-1.el6_4.ppc64.rpm
subscription-manager-migration-1.1.23.1-1.el6_4.ppc64.rpm

s390x:
subscription-manager-1.1.23.1-1.el6_4.s390x.rpm
subscription-manager-debuginfo-1.1.23.1-1.el6_4.s390x.rpm
subscription-manager-firstboot-1.1.23.1-1.el6_4.s390x.rpm
subscription-manager-gui-1.1.23.1-1.el6_4.s390x.rpm
subscription-manager-migration-1.1.23.1-1.el6_4.s390x.rpm

x86_64:
subscription-manager-1.1.23.1-1.el6_4.x86_64.rpm
subscription-manager-debuginfo-1.1.23.1-1.el6_4.x86_64.rpm
subscription-manager-firstboot-1.1.23.1-1.el6_4.x86_64.rpm
subscription-manager-gui-1.1.23.1-1.el6_4.x86_64.rpm
subscription-manager-migration-1.1.23.1-1.el6_4.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/subscription-manager-1.1.23.1-1.el6_4.src.rpm

i386:
subscription-manager-1.1.23.1-1.el6_4.i686.rpm
subscription-manager-debuginfo-1.1.23.1-1.el6_4.i686.rpm
subscription-manager-firstboot-1.1.23.1-1.el6_4.i686.rpm
subscription-manager-gui-1.1.23.1-1.el6_4.i686.rpm
subscription-manager-migration-1.1.23.1-1.el6_4.i686.rpm

x86_64:
subscription-manager-1.1.23.1-1.el6_4.x86_64.rpm
subscription-manager-debuginfo-1.1.23.1-1.el6_4.x86_64.rpm
subscription-manager-firstboot-1.1.23.1-1.el6_4.x86_64.rpm
subscription-manager-gui-1.1.23.1-1.el6_4.x86_64.rpm
subscription-manager-migration-1.1.23.1-1.el6_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://access.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2012-6137.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 2013 Red Hat, Inc.
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