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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2013.0105 Important: ipa security update 24 January 2013 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: ipa ipa-client Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 5 Red Hat Enterprise Linux WS/Desktop 5 Red Hat Enterprise Linux Server 6 Red Hat Enterprise Linux WS/Desktop 6 Impact/Access: Unauthorised Access -- Remote with User Interaction Provide Misleading Information -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2012-5484 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2013-0188.html https://rhn.redhat.com/errata/RHSA-2013-0189.html Comment: This bulletin contains two (2) Red Hat security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: ipa security update Advisory ID: RHSA-2013:0188-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-0188.html Issue date: 2013-01-23 CVE Names: CVE-2012-5484 ===================================================================== 1. Summary: Updated ipa packages that fix one security issue are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having important 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 Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux Desktop Optional (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: Red Hat Identity Management is a centralized authentication, identity management and authorization solution for both traditional and cloud-based enterprise environments. 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). Red Hat would like to thank Petr MenÅ¡ÃÂk for reporting this issue. 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. Users of ipa are advised to upgrade to these updated packages, which correct this issue. After installing the update, changes in LDAP are handled by ipa-ldap-updater automatically and are effective immediately. 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/): 876307 - CVE-2012-5484 ipa: weakness when initiating join from IPA client can potentially compromise IPA domain 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/ipa-2.2.0-17.el6_3.1.src.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 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 Red Hat Enterprise Linux Desktop Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/ipa-2.2.0-17.el6_3.1.src.rpm i386: ipa-admintools-2.2.0-17.el6_3.1.i686.rpm ipa-debuginfo-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 x86_64: ipa-admintools-2.2.0-17.el6_3.1.x86_64.rpm ipa-debuginfo-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 Red Hat Enterprise Linux HPC Node (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/ipa-2.2.0-17.el6_3.1.src.rpm 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 Red Hat Enterprise Linux HPC Node Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/ipa-2.2.0-17.el6_3.1.src.rpm x86_64: ipa-admintools-2.2.0-17.el6_3.1.x86_64.rpm ipa-debuginfo-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 Red Hat Enterprise Linux Server (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/ipa-2.2.0-17.el6_3.1.src.rpm i386: ipa-admintools-2.2.0-17.el6_3.1.i686.rpm 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-server-2.2.0-17.el6_3.1.i686.rpm ipa-server-selinux-2.2.0-17.el6_3.1.i686.rpm ppc64: ipa-admintools-2.2.0-17.el6_3.1.ppc64.rpm ipa-client-2.2.0-17.el6_3.1.ppc64.rpm ipa-debuginfo-2.2.0-17.el6_3.1.ppc64.rpm ipa-python-2.2.0-17.el6_3.1.ppc64.rpm s390x: ipa-admintools-2.2.0-17.el6_3.1.s390x.rpm ipa-client-2.2.0-17.el6_3.1.s390x.rpm ipa-debuginfo-2.2.0-17.el6_3.1.s390x.rpm ipa-python-2.2.0-17.el6_3.1.s390x.rpm x86_64: ipa-admintools-2.2.0-17.el6_3.1.x86_64.rpm 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-server-2.2.0-17.el6_3.1.x86_64.rpm ipa-server-selinux-2.2.0-17.el6_3.1.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/ipa-2.2.0-17.el6_3.1.src.rpm i386: ipa-admintools-2.2.0-17.el6_3.1.i686.rpm 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-server-2.2.0-17.el6_3.1.i686.rpm ipa-server-selinux-2.2.0-17.el6_3.1.i686.rpm x86_64: ipa-admintools-2.2.0-17.el6_3.1.x86_64.rpm 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-server-2.2.0-17.el6_3.1.x86_64.rpm ipa-server-selinux-2.2.0-17.el6_3.1.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-2012-5484.html https://access.redhat.com/security/updates/classification/#important 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. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFRAFtoXlSAg2UNWIIRAhb6AKC8pKI8sFczd4SAk0l4m/+XV8OQSwCeMU9S 5ISYbcazBwT6wNNRKn07Mh4= =Fnq3 - -----END PGP SIGNATURE----- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: ipa-client security update Advisory ID: RHSA-2013:0189-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-0189.html Issue date: 2013-01-23 CVE Names: CVE-2012-5484 ===================================================================== 1. Summary: An updated ipa-client package that fixes one security issue is now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having important 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 3. Description: Red Hat Identity Management is a centralized authentication, identity management and authorization solution for both traditional and cloud-based enterprise environments. 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). Red Hat would like to thank Petr MenÅ¡ÃÂk for reporting this issue. 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. Users of ipa-client are advised to upgrade to this updated package, which corrects 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/): 876307 - CVE-2012-5484 ipa: weakness when initiating join from IPA client can potentially compromise IPA domain 6. Package List: Red Hat Enterprise Linux Desktop (v. 5 client): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/ipa-client-2.1.3-5.el5_9.2.src.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 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 Red Hat Enterprise Linux (v. 5 server): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/ipa-client-2.1.3-5.el5_9.2.src.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 ia64: ipa-client-2.1.3-5.el5_9.2.ia64.rpm ipa-client-debuginfo-2.1.3-5.el5_9.2.ia64.rpm ppc: ipa-client-2.1.3-5.el5_9.2.ppc.rpm ipa-client-debuginfo-2.1.3-5.el5_9.2.ppc.rpm s390x: ipa-client-2.1.3-5.el5_9.2.s390x.rpm ipa-client-debuginfo-2.1.3-5.el5_9.2.s390x.rpm 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 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-2012-5484.html https://access.redhat.com/security/updates/classification/#important 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. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFRAFuFXlSAg2UNWIIRAjmnAKCsetHcNL5fwNChLVPlQ+Y9gaocKwCeMjWv k1LZd1B9AXIbeNokcsw9F9k= =wbi1 - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBUQB7P+4yVqjM2NGpAQKRXA//cpWM8S2cAE8l+iv6BFScf4ebSTHcD+i3 fFdQ5vMVtl1i/bVidN8xUNbQbj+AeVxYskhx2QjEWh67qDX4gCpkOKMMvs/iM2pL JDMbm763Ls+UKsnd81HIxkfrqvgVmpKdWoZrxBWJtBt7b5DJj5a3wFyEvka3zkxu 7IXVAATgHH0hJfgcDHKiEzDCD4UbtxUm0sEKzMoKni4lkOldUvE4JjUQazfY6FlF dpIuSki+TZp75up31piS7omuA5SioYMe9ewKT9vQ/JK6Rh9bjEX6f+r9N74EqNvr 2fZkkn4EfhAn1zQ2XDYNQqcMMxRtmwv6P1kksFCxAu0BTwD7KCJKcGrgnxpnZxrE MBArwt8DkfTFRz93vJQB/1/yiUAv1X/OC/PjPwjgOmORywD/HzNlZK+QGPOegBwY 5SDHHTIgUyFYkxeCvi0Xfzdy7phf2E71iVSrmaP/83A1/iAts8zxSIQZUoarkjDm f11mme+739DAcQW99DVOTD6hqdRMrYL8RQIZN9xdmd19J7bnCvjjTZrU2vS7/HOO unyHrIrrd05QrF3/ydtfsycmXHv3B/SdNyLzVNjctFpZ9ITLMkXWRpgqWPbJIxdF KQ1Mcno8mcgJopobf9pO1lNJ2cXHGf53K6wAWj9y91D6+EVRrQz/1jnyZLLmNESg piE1YJrb1hU= =W82k -----END PGP SIGNATURE-----