Synopsis:          Important: ipa-client 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).

When a fix for this flaw has been applied to the client but not yet 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.
--

SL5
   x86_64
     ipa-client-2.1.3-5.el5_9.2.x86_64.rpm
     ipa-client-debuginfo-2.1.3-5.el5_9.2.x86_64.rpm
   i386
     ipa-client-2.1.3-5.el5_9.2.i386.rpm
     ipa-client-debuginfo-2.1.3-5.el5_9.2.i386.rpm

For dependency resolution the following packages have been added to the SL5
security repo on some older releases:
   x86_64
     authconfig-5.3.21-7.el5.x86_64.rpm
     authconfig-gtk-5.3.21-7.el5.x86_64.rpm
     certmonger-0.50-3.el5.x86_64.rpm
     curl-7.15.5-15.el5.i386.rpm
     curl-7.15.5-15.el5.x86_64.rpm
     curl-devel-7.15.5-15.el5.i386.rpm
     curl-devel-7.15.5-15.el5.x86_64.rpm
     libipa_hbac-1.5.1-58.el5.i386.rpm
     libipa_hbac-1.5.1-58.el5.x86_64.rpm
     libipa_hbac-devel-1.5.1-58.el5.i386.rpm
     libipa_hbac-devel-1.5.1-58.el5.x86_64.rpm
     libipa_hbac-python-1.5.1-58.el5.x86_64.rpm
     libtdb-1.2.10-1.el5.i386.rpm
     libtdb-1.2.10-1.el5.x86_64.rpm
     libtdb-devel-1.2.10-1.el5.i386.rpm
     libtdb-devel-1.2.10-1.el5.x86_64.rpm
     policycoreutils-1.33.12-14.8.el5.x86_64.rpm
     policycoreutils-gui-1.33.12-14.8.el5.x86_64.rpm
     policycoreutils-newrole-1.33.12-14.8.el5.x86_64.rpm
     shadow-utils-4.0.17-21.el5.x86_64.rpm
     sssd-1.5.1-58.el5.x86_64.rpm
     sssd-client-1.5.1-58.el5.i386.rpm
     sssd-client-1.5.1-58.el5.x86_64.rpm
     sssd-tools-1.5.1-58.el5.x86_64.rpm
     xmlrpc-c-1.16.24-1206.1840.4.el5.i386.rpm
     xmlrpc-c-1.16.24-1206.1840.4.el5.x86_64.rpm
     xmlrpc-c-apps-1.16.24-1206.1840.4.el5.x86_64.rpm
     xmlrpc-c-c++-1.16.24-1206.1840.4.el5.i386.rpm
     xmlrpc-c-c++-1.16.24-1206.1840.4.el5.x86_64.rpm
     xmlrpc-c-client-1.16.24-1206.1840.4.el5.i386.rpm
     xmlrpc-c-client++-1.16.24-1206.1840.4.el5.i386.rpm
     xmlrpc-c-client-1.16.24-1206.1840.4.el5.x86_64.rpm
     xmlrpc-c-client++-1.16.24-1206.1840.4.el5.x86_64.rpm
     xmlrpc-c-devel-1.16.24-1206.1840.4.el5.i386.rpm
     xmlrpc-c-devel-1.16.24-1206.1840.4.el5.x86_64.rpm
   i386
     authconfig-5.3.21-7.el5.i386.rpm
     authconfig-gtk-5.3.21-7.el5.i386.rpm
     certmonger-0.50-3.el5.i386.rpm
     curl-7.15.5-15.el5.i386.rpm
     curl-devel-7.15.5-15.el5.i386.rpm
     libipa_hbac-1.5.1-58.el5.i386.rpm
     libipa_hbac-devel-1.5.1-58.el5.i386.rpm
     libipa_hbac-python-1.5.1-58.el5.i386.rpm
     libtdb-1.2.10-1.el5.i386.rpm
     libtdb-devel-1.2.10-1.el5.i386.rpm
     policycoreutils-1.33.12-14.8.el5.i386.rpm
     policycoreutils-gui-1.33.12-14.8.el5.i386.rpm
     policycoreutils-newrole-1.33.12-14.8.el5.i386.rpm
     shadow-utils-4.0.17-21.el5.i386.rpm
     sssd-1.5.1-58.el5.i386.rpm
     sssd-client-1.5.1-58.el5.i386.rpm
     sssd-tools-1.5.1-58.el5.i386.rpm
     xmlrpc-c-1.16.24-1206.1840.4.el5.i386.rpm
     xmlrpc-c-apps-1.16.24-1206.1840.4.el5.i386.rpm
     xmlrpc-c-c++-1.16.24-1206.1840.4.el5.i386.rpm
     xmlrpc-c-client-1.16.24-1206.1840.4.el5.i386.rpm
     xmlrpc-c-client++-1.16.24-1206.1840.4.el5.i386.rpm
     xmlrpc-c-devel-1.16.24-1206.1840.4.el5.i386.rpm

- Scientific Linux Development Team