rhsa-2013_0189
Vulnerability from csaf_redhat
Published
2013-01-23 21:37
Modified
2024-11-22 06:01
Summary
Red Hat Security Advisory: ipa-client security update
Notes
Topic
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.
Details
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 Menšík 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.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
{ "document": { "aggregate_severity": { "namespace": "https://access.redhat.com/security/updates/classification/", "text": "Important" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "summary", "text": "An updated ipa-client package that fixes one security issue is now\navailable for Red Hat Enterprise Linux 5.\n\nThe Red Hat Security Response Team has rated this update as having\nimportant security impact. A Common Vulnerability Scoring System (CVSS)\nbase score, which gives a detailed severity rating, is available from the\nCVE link in the References section.", "title": "Topic" }, { "category": "general", "text": "Red Hat Identity Management is a centralized authentication, identity\nmanagement and authorization solution for both traditional and cloud-based\nenterprise environments.\n\nA weakness was found in the way IPA clients communicated with IPA servers\nwhen initially attempting to join IPA domains. As there was no secure way\nto provide the IPA server\u0027s Certificate Authority (CA) certificate to the\nclient during a join, the IPA client enrollment process was susceptible to\nman-in-the-middle attacks. This flaw could allow an attacker to obtain\naccess to the IPA server using the credentials provided by an IPA client,\nincluding administrative access to the entire domain if the join was\nperformed using an administrator\u0027s credentials. (CVE-2012-5484)\n\nNote: This weakness was only exposed during the initial client join to the\nrealm, because the IPA client did not yet have the CA certificate of the\nserver. Once an IPA client has joined the realm and has obtained the CA\ncertificate of the IPA server, all further communication is secure. If a\nclient were using the OTP (one-time password) method to join to the realm,\nan attacker could only obtain unprivileged access to the server (enough to\nonly join the realm).\n\nRed Hat would like to thank Petr Men\u0161\u00edk for reporting this issue.\n\nWhen a fix for this flaw has been applied to the client but not yet the\nserver, ipa-client-install, in unattended mode, will fail if you do not\nhave the correct CA certificate locally, noting that you must use the\n\"--force\" option to insecurely obtain the certificate. In interactive mode,\nthe certificate will try to be obtained securely from LDAP. If this fails,\nyou will be prompted to insecurely download the certificate via HTTP. In\nthe same situation when using OTP, LDAP will not be queried and you will be\nprompted to insecurely download the certificate via HTTP.\n\nUsers of ipa-client are advised to upgrade to this updated package, which\ncorrects this issue.", "title": "Details" }, { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://access.redhat.com/security/team/contact/", "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.", "name": "Red Hat Product Security", "namespace": "https://www.redhat.com" }, "references": [ { "category": "self", "summary": "https://access.redhat.com/errata/RHSA-2013:0189", "url": "https://access.redhat.com/errata/RHSA-2013:0189" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "876307", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=876307" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2013/rhsa-2013_0189.json" } ], "title": "Red Hat Security Advisory: ipa-client security update", "tracking": { "current_release_date": "2024-11-22T06:01:05+00:00", "generator": { "date": "2024-11-22T06:01:05+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.2.1" } }, "id": "RHSA-2013:0189", "initial_release_date": "2013-01-23T21:37:00+00:00", "revision_history": [ { "date": "2013-01-23T21:37:00+00:00", "number": "1", "summary": "Initial version" }, { "date": "2013-01-23T21:46:51+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2024-11-22T06:01:05+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Red Hat Enterprise Linux (v. 5 server)", "product": { "name": "Red Hat Enterprise Linux (v. 5 server)", "product_id": "5Server-5.9.Z", 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"ipa-client-0:2.1.3-5.el5_9.2.src", "product_id": "ipa-client-0:2.1.3-5.el5_9.2.src", "product_identification_helper": { "purl": "pkg:rpm/redhat/ipa-client@2.1.3-5.el5_9.2?arch=src" } } } ], "category": "architecture", "name": "src" }, { "branches": [ { "category": "product_version", "name": "ipa-client-0:2.1.3-5.el5_9.2.ia64", "product": { "name": "ipa-client-0:2.1.3-5.el5_9.2.ia64", "product_id": "ipa-client-0:2.1.3-5.el5_9.2.ia64", "product_identification_helper": { "purl": "pkg:rpm/redhat/ipa-client@2.1.3-5.el5_9.2?arch=ia64" } } }, { "category": "product_version", "name": "ipa-client-debuginfo-0:2.1.3-5.el5_9.2.ia64", "product": { "name": "ipa-client-debuginfo-0:2.1.3-5.el5_9.2.ia64", "product_id": "ipa-client-debuginfo-0:2.1.3-5.el5_9.2.ia64", "product_identification_helper": { "purl": "pkg:rpm/redhat/ipa-client-debuginfo@2.1.3-5.el5_9.2?arch=ia64" } } } ], "category": "architecture", "name": "ia64" }, { "branches": [ { "category": "product_version", "name": "ipa-client-0:2.1.3-5.el5_9.2.x86_64", "product": { "name": "ipa-client-0:2.1.3-5.el5_9.2.x86_64", "product_id": "ipa-client-0:2.1.3-5.el5_9.2.x86_64", "product_identification_helper": { "purl": "pkg:rpm/redhat/ipa-client@2.1.3-5.el5_9.2?arch=x86_64" } } }, { "category": "product_version", "name": "ipa-client-debuginfo-0:2.1.3-5.el5_9.2.x86_64", "product": { "name": "ipa-client-debuginfo-0:2.1.3-5.el5_9.2.x86_64", "product_id": "ipa-client-debuginfo-0:2.1.3-5.el5_9.2.x86_64", "product_identification_helper": { "purl": "pkg:rpm/redhat/ipa-client-debuginfo@2.1.3-5.el5_9.2?arch=x86_64" } } } ], "category": "architecture", "name": "x86_64" }, { "branches": [ { "category": "product_version", "name": "ipa-client-0:2.1.3-5.el5_9.2.ppc", "product": { "name": "ipa-client-0:2.1.3-5.el5_9.2.ppc", "product_id": "ipa-client-0:2.1.3-5.el5_9.2.ppc", "product_identification_helper": { "purl": "pkg:rpm/redhat/ipa-client@2.1.3-5.el5_9.2?arch=ppc" } } }, { "category": "product_version", "name": 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"name": "i386" } ], "category": "vendor", "name": "Red Hat" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "ipa-client-0:2.1.3-5.el5_9.2.i386 as a component of Red Hat Enterprise Linux (v. 5 server)", "product_id": "5Server-5.9.Z:ipa-client-0:2.1.3-5.el5_9.2.i386" }, "product_reference": "ipa-client-0:2.1.3-5.el5_9.2.i386", "relates_to_product_reference": "5Server-5.9.Z" }, { "category": "default_component_of", "full_product_name": { "name": "ipa-client-0:2.1.3-5.el5_9.2.ia64 as a component of Red Hat Enterprise Linux (v. 5 server)", "product_id": "5Server-5.9.Z:ipa-client-0:2.1.3-5.el5_9.2.ia64" }, "product_reference": "ipa-client-0:2.1.3-5.el5_9.2.ia64", "relates_to_product_reference": "5Server-5.9.Z" }, { "category": "default_component_of", "full_product_name": { "name": "ipa-client-0:2.1.3-5.el5_9.2.ppc as a component of Red Hat Enterprise Linux (v. 5 server)", "product_id": "5Server-5.9.Z:ipa-client-0:2.1.3-5.el5_9.2.ppc" }, "product_reference": "ipa-client-0:2.1.3-5.el5_9.2.ppc", "relates_to_product_reference": "5Server-5.9.Z" }, { "category": "default_component_of", "full_product_name": { "name": "ipa-client-0:2.1.3-5.el5_9.2.s390x as a component of Red Hat Enterprise Linux (v. 5 server)", "product_id": "5Server-5.9.Z:ipa-client-0:2.1.3-5.el5_9.2.s390x" }, "product_reference": "ipa-client-0:2.1.3-5.el5_9.2.s390x", "relates_to_product_reference": "5Server-5.9.Z" }, { "category": "default_component_of", "full_product_name": { "name": "ipa-client-0:2.1.3-5.el5_9.2.src as a component of Red Hat Enterprise Linux (v. 5 server)", "product_id": "5Server-5.9.Z:ipa-client-0:2.1.3-5.el5_9.2.src" }, "product_reference": "ipa-client-0:2.1.3-5.el5_9.2.src", "relates_to_product_reference": "5Server-5.9.Z" }, { "category": "default_component_of", "full_product_name": { "name": "ipa-client-0:2.1.3-5.el5_9.2.x86_64 as a component of Red Hat Enterprise Linux (v. 5 server)", "product_id": "5Server-5.9.Z:ipa-client-0:2.1.3-5.el5_9.2.x86_64" }, "product_reference": "ipa-client-0:2.1.3-5.el5_9.2.x86_64", "relates_to_product_reference": "5Server-5.9.Z" }, { "category": "default_component_of", "full_product_name": { "name": "ipa-client-debuginfo-0:2.1.3-5.el5_9.2.i386 as a component of Red Hat Enterprise Linux (v. 5 server)", "product_id": "5Server-5.9.Z:ipa-client-debuginfo-0:2.1.3-5.el5_9.2.i386" }, "product_reference": "ipa-client-debuginfo-0:2.1.3-5.el5_9.2.i386", "relates_to_product_reference": "5Server-5.9.Z" }, { "category": "default_component_of", "full_product_name": { "name": "ipa-client-debuginfo-0:2.1.3-5.el5_9.2.ia64 as a component of Red Hat Enterprise Linux (v. 5 server)", "product_id": "5Server-5.9.Z:ipa-client-debuginfo-0:2.1.3-5.el5_9.2.ia64" }, "product_reference": "ipa-client-debuginfo-0:2.1.3-5.el5_9.2.ia64", "relates_to_product_reference": "5Server-5.9.Z" }, { "category": "default_component_of", "full_product_name": { "name": "ipa-client-debuginfo-0:2.1.3-5.el5_9.2.ppc as a component of Red Hat Enterprise Linux (v. 5 server)", "product_id": "5Server-5.9.Z:ipa-client-debuginfo-0:2.1.3-5.el5_9.2.ppc" }, "product_reference": "ipa-client-debuginfo-0:2.1.3-5.el5_9.2.ppc", "relates_to_product_reference": "5Server-5.9.Z" }, { "category": "default_component_of", "full_product_name": { "name": "ipa-client-debuginfo-0:2.1.3-5.el5_9.2.s390x as a component of Red Hat Enterprise Linux (v. 5 server)", "product_id": "5Server-5.9.Z:ipa-client-debuginfo-0:2.1.3-5.el5_9.2.s390x" }, "product_reference": "ipa-client-debuginfo-0:2.1.3-5.el5_9.2.s390x", "relates_to_product_reference": "5Server-5.9.Z" }, { "category": "default_component_of", "full_product_name": { "name": "ipa-client-debuginfo-0:2.1.3-5.el5_9.2.x86_64 as a component of Red Hat Enterprise Linux (v. 5 server)", "product_id": "5Server-5.9.Z:ipa-client-debuginfo-0:2.1.3-5.el5_9.2.x86_64" }, "product_reference": "ipa-client-debuginfo-0:2.1.3-5.el5_9.2.x86_64", "relates_to_product_reference": "5Server-5.9.Z" } ] }, "vulnerabilities": [ { "acknowledgments": [ { "names": [ "Petr Men\u0161\u00edk" ] } ], "cve": "CVE-2012-5484", "discovery_date": "2012-11-09T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "876307" } ], "notes": [ { "category": "description", "text": "The client in FreeIPA 2.x and 3.x before 3.1.2 does not properly obtain the Certification Authority (CA) certificate from the server, which allows man-in-the-middle attackers to spoof a join procedure via a crafted certificate.", "title": "Vulnerability description" }, { "category": "summary", "text": "ipa: weakness when initiating join from IPA client can potentially compromise IPA domain", "title": "Vulnerability summary" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "5Server-5.9.Z:ipa-client-0:2.1.3-5.el5_9.2.i386", "5Server-5.9.Z:ipa-client-0:2.1.3-5.el5_9.2.ia64", "5Server-5.9.Z:ipa-client-0:2.1.3-5.el5_9.2.ppc", "5Server-5.9.Z:ipa-client-0:2.1.3-5.el5_9.2.s390x", "5Server-5.9.Z:ipa-client-0:2.1.3-5.el5_9.2.src", "5Server-5.9.Z:ipa-client-0:2.1.3-5.el5_9.2.x86_64", "5Server-5.9.Z:ipa-client-debuginfo-0:2.1.3-5.el5_9.2.i386", "5Server-5.9.Z:ipa-client-debuginfo-0:2.1.3-5.el5_9.2.ia64", "5Server-5.9.Z:ipa-client-debuginfo-0:2.1.3-5.el5_9.2.ppc", "5Server-5.9.Z:ipa-client-debuginfo-0:2.1.3-5.el5_9.2.s390x", "5Server-5.9.Z:ipa-client-debuginfo-0:2.1.3-5.el5_9.2.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2012-5484" }, { "category": "external", "summary": "RHBZ#876307", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=876307" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2012-5484", "url": "https://www.cve.org/CVERecord?id=CVE-2012-5484" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2012-5484", "url": "https://nvd.nist.gov/vuln/detail/CVE-2012-5484" }, { "category": "external", "summary": "http://www.freeipa.org/page/CVE-2012-5484", "url": "http://www.freeipa.org/page/CVE-2012-5484" } ], "release_date": "2013-01-23T00:00:00+00:00", "remediations": [ { "category": "vendor_fix", "date": "2013-01-23T21:37:00+00:00", "details": "Before applying this update, make sure all previously-released errata\nrelevant to your system have been applied.\n\nThis update is available via the Red Hat Network. Details on how to\nuse the Red Hat Network to apply this update are available at\nhttps://access.redhat.com/knowledge/articles/11258", "product_ids": [ "5Server-5.9.Z:ipa-client-0:2.1.3-5.el5_9.2.i386", "5Server-5.9.Z:ipa-client-0:2.1.3-5.el5_9.2.ia64", "5Server-5.9.Z:ipa-client-0:2.1.3-5.el5_9.2.ppc", "5Server-5.9.Z:ipa-client-0:2.1.3-5.el5_9.2.s390x", "5Server-5.9.Z:ipa-client-0:2.1.3-5.el5_9.2.src", "5Server-5.9.Z:ipa-client-0:2.1.3-5.el5_9.2.x86_64", "5Server-5.9.Z:ipa-client-debuginfo-0:2.1.3-5.el5_9.2.i386", "5Server-5.9.Z:ipa-client-debuginfo-0:2.1.3-5.el5_9.2.ia64", "5Server-5.9.Z:ipa-client-debuginfo-0:2.1.3-5.el5_9.2.ppc", "5Server-5.9.Z:ipa-client-debuginfo-0:2.1.3-5.el5_9.2.s390x", "5Server-5.9.Z:ipa-client-debuginfo-0:2.1.3-5.el5_9.2.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2013:0189" } ], "scores": [ { "cvss_v2": { "accessComplexity": "HIGH", "accessVector": "ADJACENT_NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 6.8, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:A/AC:H/Au:N/C:C/I:C/A:C", "version": "2.0" }, "products": [ "5Server-5.9.Z:ipa-client-0:2.1.3-5.el5_9.2.i386", "5Server-5.9.Z:ipa-client-0:2.1.3-5.el5_9.2.ia64", "5Server-5.9.Z:ipa-client-0:2.1.3-5.el5_9.2.ppc", "5Server-5.9.Z:ipa-client-0:2.1.3-5.el5_9.2.s390x", "5Server-5.9.Z:ipa-client-0:2.1.3-5.el5_9.2.src", "5Server-5.9.Z:ipa-client-0:2.1.3-5.el5_9.2.x86_64", "5Server-5.9.Z:ipa-client-debuginfo-0:2.1.3-5.el5_9.2.i386", "5Server-5.9.Z:ipa-client-debuginfo-0:2.1.3-5.el5_9.2.ia64", "5Server-5.9.Z:ipa-client-debuginfo-0:2.1.3-5.el5_9.2.ppc", "5Server-5.9.Z:ipa-client-debuginfo-0:2.1.3-5.el5_9.2.s390x", "5Server-5.9.Z:ipa-client-debuginfo-0:2.1.3-5.el5_9.2.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ], "title": "ipa: weakness when initiating join from IPA client can potentially compromise IPA domain" } ] }
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Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.