Scientific Linux: ipa Update Key: Important Security Fix for SL6.x

Date: Thu, 24 Jan 2013 09:52:06 -0600
Reply-To: Pat Riehecky 
Sender: Security Errata for Scientific Linux
 
From: Pat Riehecky 
Organization: Fermilab
Subject: Security ERRATA Important: ipa on SL6.x i386/x86_64
MIME-Version: 1.0

Synopsis: Important: ipa security update
Issue Date: 2013-01-23
CVE Numbers: CVE-2012-5484
--

A weakness was found in the way IPA clients communicated with IPA
servers when
initially attempting to join IPA domains. As there was no secure way to
provide
the IPA server's Certificate Authority (CA) certificate to the client
during a
join, the IPA client enrollment process was susceptible to man-in-the-middle
attacks. This flaw could allow an attacker to obtain access to the IPA
server
using the credentials provided by an IPA client, including administrative
access to the entire domain if the join was performed using an
administrator's
credentials. (CVE-2012-5484)

Note: This weakness was only exposed during the initial client join to the
realm, because the IPA client did not yet have the CA certificate of the
server. Once an IPA client has joined the realm and has obtained the CA
certificate of the IPA server, all further communication is secure. If a
client
were using the OTP (one-time password) method to join to the realm, an
attacker
could only obtain unprivileged access to the server (enough to only join the
realm).

This update must be installed on both the IPA client and IPA server.
When this
update has been applied to the client but not the server,
ipa-client-install,
in unattended mode, will fail if you do not have the correct CA certificate
locally, noting that you must use the "--force" option to insecurely
obtain the
certificate. In interactive mode, the certificate will try to be obtained
securely from LDAP. If this fails, you will be prompted to insecurely
download
the certificate via HTTP. In the same situation when using OTP, LDAP
will not
be queried and you will be prompted to insecurely download the
certificate via
HTTP.

After installing the update, changes in LDAP are handled by ipa-ldap-updater
automatically and are effective immediately.
--

SL6
 x86_64
 ipa-client-2.2.0-17.el6_3.1.x86_64.rpm
 ipa-debuginfo-2.2.0-17.el6_3.1.x86_64.rpm
 ipa-python-2.2.0-17.el6_3.1.x86_64.rpm
 ipa-admintools-2.2.0-17.el6_3.1.x86_64.rpm
 ipa-server-2.2.0-17.el6_3.1.x86_64.rpm
 ipa-server-selinux-2.2.0-17.el6_3.1.x86_64.rpm
 i386
 ipa-client-2.2.0-17.el6_3.1.i686.rpm
 ipa-debuginfo-2.2.0-17.el6_3.1.i686.rpm
 ipa-python-2.2.0-17.el6_3.1.i686.rpm
 ipa-admintools-2.2.0-17.el6_3.1.i686.rpm
 ipa-server-2.2.0-17.el6_3.1.i686.rpm
 ipa-server-selinux-2.2.0-17.el6_3.1.i686.rpm

For dependency resolution the following packages have been added to the SL5
security repo on some older releases:
 x86_64
 certmonger-0.56-1.el6.x86_64.rpm
 libipa_hbac-1.8.0-32.el6.i686.rpm
 libipa_hbac-1.8.0-32.el6.x86_64.rpm
 libipa_hbac-devel-1.8.0-32.el6.i686.rpm
 libipa_hbac-devel-1.8.0-32.el6.x86_64.rpm
 libipa_hbac-python-1.8.0-32.el6.x86_64.rpm
 libsss_autofs-1.8.0-32.el6.x86_64.rpm
 mod_auth_kerb-5.4-9.el6.x86_64.rpm
 pki-ca-9.0.3-24.el6.noarch.rpm
 pki-common-9.0.3-24.el6.noarch.rpm
 pki-common-javadoc-9.0.3-24.el6.noarch.rpm
 pki-java-tools-9.0.3-24.el6.noarch.rpm
 pki-java-tools-javadoc-9.0.3-24.el6.noarch.rpm
 pki-native-tools-9.0.3-24.el6.x86_64.rpm
 pki-selinux-9.0.3-24.el6.noarch.rpm
 pki-setup-9.0.3-24.el6.noarch.rpm
 pki-silent-9.0.3-24.el6.noarch.rpm
 pki-symkey-9.0.3-24.el6.x86_64.rpm
 pki-util-9.0.3-24.el6.noarch.rpm
 pki-util-javadoc-9.0.3-24.el6.noarch.rpm
 python-memcached-1.43-6.el6.noarch.rpm
 slapi-nis-0.40-1.el6.x86_64.rpm
 sssd-1.8.0-32.el6.x86_64.rpm
 sssd-client-1.8.0-32.el6.i686.rpm
 sssd-client-1.8.0-32.el6.x86_64.rpm
 sssd-tools-1.8.0-32.el6.x86_64.rpm
 i386
 certmonger-0.56-1.el6.i686.rpm
 libipa_hbac-1.8.0-32.el6.i686.rpm
 libipa_hbac-devel-1.8.0-32.el6.i686.rpm
 libipa_hbac-python-1.8.0-32.el6.i686.rpm
 libsss_autofs-1.8.0-32.el6.i686.rpm
 mod_auth_kerb-5.4-9.el6.i686.rpm
 pki-ca-9.0.3-24.el6.noarch.rpm
 pki-common-9.0.3-24.el6.noarch.rpm
 pki-common-javadoc-9.0.3-24.el6.noarch.rpm
 pki-java-tools-9.0.3-24.el6.noarch.rpm
 pki-java-tools-javadoc-9.0.3-24.el6.noarch.rpm
 pki-native-tools-9.0.3-24.el6.i686.rpm
 pki-selinux-9.0.3-24.el6.noarch.rpm
 pki-setup-9.0.3-24.el6.noarch.rpm
 pki-silent-9.0.3-24.el6.noarch.rpm
 pki-symkey-9.0.3-24.el6.i686.rpm
 pki-util-9.0.3-24.el6.noarch.rpm
 pki-util-javadoc-9.0.3-24.el6.noarch.rpm
 python-memcached-1.43-6.el6.noarch.rpm
 slapi-nis-0.40-1.el6.i686.rpm
 sssd-1.8.0-32.el6.i686.rpm
 sssd-client-1.8.0-32.el6.i686.rpm
 sssd-tools-1.8.0-32.el6.i686.rpm

- Scientific Linux Development Team