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Christian Heimes
4911a3f055
It was found that if an account was created with a name corresponding to an account local to a system, such as 'root', was created via IPA, such account could access any enrolled machine with that account, and the local system privileges. This also bypass the absence of explicit HBAC rules. root principal alias ------------------- The principal "root@REALM" is now a Kerberos principal alias for "admin". This prevent user with "User Administrator" role or "System: Add User" privilege to create an account with "root" principal name. Modified user permissions ------------------------- Several user permissions no longer apply to admin users and filter on posixaccount object class. This prevents user managers from modifying admin acounts. - System: Manage User Certificates - System: Manage User Principals - System: Manage User SSH Public Keys - System: Modify Users - System: Remove Users - System: Unlock user ``System: Unlock User`` is restricted because the permission also allow a user manager to lock an admin account. ``System: Modify Users`` is restricted to prevent user managers from changing login shell or notification channels (mail, mobile) of admin accounts. New user permission ------------------- - System: Change Admin User password The new permission allows manipulation of admin user password fields. By default only the ``PassSync Service`` privilege is allowed to modify admin user password fields. Modified group permissions -------------------------- Group permissions are now restricted as well. Group admins can no longer modify the admins group and are limited to groups with object class ``ipausergroup``. - System: Modify Groups - System: Remove Groups The permission ``System: Modify Group Membership`` was already limited. Notes ----- Admin users are mostly unaffected by the new restrictions, except for the fact that admins can no longer change krbPrincipalAlias of another admin or manipulate password fields directly. Commands like ``ipa passwd otheradmin`` still work, though. The ACI ``Admin can manage any entry`` allows admins to modify other entries and most attributes. Managed permissions don't install ``obj.permission_filter_objectclasses`` when ``ipapermtargetfilter`` is set. Group and user objects now have a ``permission_filter_objectclasses_string`` attribute that is used by new target filters. Misc changes ------------ Also add new exception AlreadyContainsValueError. BaseLDAPAddAttribute was raising a generic base class for LDAP execution errors. Fixes: https://pagure.io/freeipa/issue/8326 Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1810160 Signed-off-by: Christian Heimes <cheimes@redhat.com> Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com> Reviewed-By: Rob Crittenden <rcritten@redhat.com> Reviewed-By: Florence Blanc-Renaud <flo@redhat.com>
FreeIPA Server
FreeIPA allows Linux administrators to centrally manage identity, authentication and access control aspects of Linux and UNIX systems by providing simple to install and use command line and web based management tools.
FreeIPA is built on top of well known Open Source components and standard protocols with a very strong focus on ease of management and automation of installation and configuration tasks.
FreeIPA can seamlessly integrate into an Active Directory environment via cross-realm Kerberos trust or user synchronization.
Benefits
FreeIPA:
- Allows all your users to access all the machines with the same credentials and security settings
- Allows users to access personal files transparently from any machine in an authenticated and secure way
- Uses an advanced grouping mechanism to restrict network access to services and files only to specific users
- Allows central management of security mechanisms like passwords, SSH Public Keys, SUDO rules, Keytabs, Access Control Rules
- Enables delegation of selected administrative tasks to other power users
- Integrates into Active Directory environments
Components
The FreeIPA project provides unified installation and management tools for the following components:
- LDAP Server - based on the 389 project
- KDC - based on MIT Kerberos implementation
- PKI based on Dogtag project
- Samba libraries for Active Directory integration
- DNS Server based on BIND and the Bind-DynDB-LDAP plugin
Project Website
Releases, announcements and other information can be found on the IPA server project page at http://www.freeipa.org/ .
Documentation
The most up-to-date documentation can be found at http://freeipa.org/page/Documentation .
Quick Start
To get started quickly, start here: http://www.freeipa.org/page/Quick_Start_Guide
For developers
- Building FreeIPA from source
- http://www.freeipa.org/page/Build
- See the BUILD.txt file in the source root directory
Licensing
Please see the file called COPYING.
Contacts
- If you want to be informed about new code releases, bug fixes, security fixes, general news and information about the IPA server subscribe to the freeipa-announce mailing list at https://www.redhat.com/mailman/listinfo/freeipa-interest/ .
- If you have a bug report please submit it at: https://pagure.io/freeipa/issues
- If you want to participate in actively developing IPA please subscribe to the freeipa-devel mailing list at https://lists.fedoraproject.org/archives/list/freeipa-devel@lists.fedorahosted.org/ or join us in IRC at irc://irc.freenode.net/freeipa