During the installation of IPA server, the installer adds a drop-in
file in /etc/systemd/system/pki-tomcatd@pki-tomcat.service.d/ipa.conf
that ensures the CA is reachable before the start command returns.
If the file is missing (for instance because the server was installed
with an old version before this drop-in was created), the upgrade
should add the file.
Fixes: https://pagure.io/freeipa/issue/9381
Signed-off-by: Florence Blanc-Renaud <flo@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
Since November 2020, Active Directory KDC generates a new type of
signature as part of the PAC. It is called "ticket signature", and is
generated based on the encrypted part of the ticket. The presence of
this signature is not mandatory in order for the PAC to be accepted for
S4U requests.
However, the behavior is different for MIT krb5. Support was added as
part of the 1.20 release, and this signature is required in order to
process S4U requests. Contrary to the PAC extended KDC signature, the
code generating this signature cannot be isolated and backported to
older krb5 versions because this version of the KDB API does not allow
passing the content of the ticket's encrypted part to IPA.
This is an issue in gradual upgrade scenarios where some IPA servers
rely on 1.19 and older versions of MIT krb5, while others use version
1.20 or newer. A service ticket that was provided by 1.19- IPA KDC will
be rejected when used by a service against a 1.20+ IPA KDC for S4U
requests.
On Fedora, CentOS 9 Stream, and RHEL 9, when the krb5 version is 1.20 or
newer, it will include a downstream-only update adding the
"optional_pac_tkt_chksum" KDB string attribute allowing to tolerate the
absence of PAC ticket signatures, if necessary.
This commit adds an extra step during the installation and update
processes where it adds a "pacTktSignSupported" ipaConfigString
attribute in "cn=KDC,cn=[server],cn=masters,cn=ipa,cn=etc,[basedn]" if
the MIT krb5 version IPA what built with was 1.20 or newer.
This commit also set "optional_pac_tkt_chksum" as a virtual KDB entry
attribute. This means the value of the attribute is not actually stored
in the database (to avoid race conditions), but its value is determined
at the KDC starting time by search the "pacTktSignSupported"
ipaConfigString in the server list. If this value is missing for at
least of them is missing, enforcement of the PAC ticket signature is
disabled by setting "optional_pac_tkt_chksum" to true for the local
realm TGS KDB entry.
For foreign realm TGS KDB entries, the "optional_pac_tkt_chksum" virtual
string attribute is set to true systematically, because, at least for
now, trusted AD domains can still have PAC ticket signature support
disabled.
Given the fact the "pacTktSignSupported" ipaConfigString for a single
server is added when this server is updated, and that the value of
"optional_pac_tkt_chksum" is determined at KDC starting time based on
the ipaConfigString attributes of all the KDCs in the domain, this
requires to restart all the KDCs in the domain after all IPA servers
were updated in order for PAC ticket signature enforcement to actually
take effect.
Fixes: https://pagure.io/freeipa/issue/9371
Signed-off-by: Julien Rische <jrische@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
There are currently three sets of CA schema changes applied
in ipa-server-upgrade:
* addition of ACME schema
* addition of certificate profile schema
* addition of lightweight CA schema
None of these require a restart of the CA to be supported.
There is an issue in schema parsing such that it doesn't handle
X-ORIGIN properly. A difference is detected and a change applied
but no change is recorded in LDAP so every time upgrade is
run it thinks a CA restart is needed. The CA is not quick to
restart so avoiding one is best, particularly when the update is
run as part of an rpm transaction where a user with an itchy finger
may think things have hung and break out of it.
https://github.com/389ds/389-ds-base/issues/5366 was
filed to track this.
Related: https://pagure.io/freeipa/issue/9204
Signed-off-by: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
PKI 10.10 unconditionally added an upgrade script for the AJP
connector which replaced the AJP secret regardless of tomcat
version. It replaced requiredSecret with secret. IPA expects
the attribute by version so this could make the secrets out of
date and/or have connectors with both secrets and different
values.
PKI commit e70373ab131aba810f318c1d917896392b49ff4b has since
been reverted but there may be servers with both secrets still.
On next IPA upgrade clean them up.
Also allow re-writing ipa-pki-proxy.conf in case the secret
changes to ensure they remain in sync.
Fixes: https://pagure.io/freeipa/issue/9176
Signed-off-by: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
The graceperiod plugin was only being enabled on new
installations. Enable also on upgrade.
Loading a new plugin requires a restart. Do so if a
new one is configured.
Fixes: https://pagure.io/freeipa/issue/1539
Signed-off-by: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
Reviewed-By: Florence Blanc-Renaud <frenaud@redhat.com>
As a part of CVE-2020-25717 mitigations, Samba now assumes 'CLASSIC
PRIMARY DOMAIN CONTROLLER' server role does not support Kerberos
operations. This is the role that IPA domain controller was using for
its hybrid NT4/AD-like operation.
Instead, 'IPA PRIMARY DOMAIN CONTROLLER' server role was introduced in
Samba. Switch to this role for new installations and during the upgrade
of servers running ADTRUST role.
Fixes: https://pagure.io/freeipa/issue/9031
Signed-off-by: Alexander Bokovoy <abokovoy@redhat.com>
Reviewed-by: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
There are time gaps in which kinit requests may fail due to
offlined SSSD's locator and replication delays.
Since `IPA` provider or SSSD offline the locator plugin for libkrb5
(man 8 sssd_krb5_locator_plugin) can do nothing about this and kinit
fallbacks to the standard libkrb5 algorithm described in `man 5 krb5.conf`.
`krb5.conf` on IPA server doesn't include `kpasswd_server` and kinit
fallbacks to DNS way. DNS (URI or SRV) RRs don't preserve any order
and kinit may contact either master or replica kpasswd servers.
This may result in a password was changed on a replica but was not
replicated to master:
master(kinit)->master(initial)->replica(kpasswd)->master(can't
obtain initial creds with new password)
So, `kpasswd_server` serves as fallback for the offlined locator.
Note: primary_kdc(the former master_kdc) doesn't help here because
it is only used if the initial credentials obtaining fails (see
`krb5_get_init_creds_password` in libkrb5) and not a password change.
Fixes: https://pagure.io/freeipa/issue/8353
Signed-off-by: Stanislav Levin <slev@altlinux.org>
Reviewed-By: Francois Cami <fcami@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
PKI has its own internal knowledge of servers and services
in its securitydomain. This has not been cleaned up in the
past but is becoming more of an issue as PKI now relies on its
securitydomain for more things, and it has a healthcheck that
reports inconsistencies.
Removing entries is straightforward using the PKI REST API.
In order to operate on the API access is needed. There was an
unused Security Domain Administrators group that I've added to
the resourceACLS we created for managing the securitydomain.
The ipara user is added as a member of this group. The REST
API binds to the CA using the IPA RA certificate.
Related commits are b3c2197b7e
and ba4df6449a.
These resourceACLS were originally created as a backwards
compatibility mechanism for dogtag v9 and later only created when a
replica was installed purportedly to save a restart. I don't see
any reason to not have these defined. They are apparently needed due
to the PKI database upgrade issues.
In any case if the purpose was to suppress these ACLS it failed
because as soon as a replica with a CA was installed they were as
well, and we need this ACL in order to manage the securitydomain.
https://pagure.io/freeipa/issue/8930
Signed-off-by: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Florence Blanc-Renaud <flo@redhat.com>
This can happen on upgrades from older deployments that lack
an ACME installation and don't meet the minimum requirements
to deploy one automatically.
Also don't consider missing ACME schema a total failure, just
log and skip it.
https://pagure.io/freeipa/issue/8832
Signed-off-by: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Florence Blanc-Renaud <frenaud@redhat.com>
- Create /var/named/dyndb-ldap/ipa/master/ early
- Assume that /var/named/dyndb-ldap/ipa/master/ exists in BINDMgr.sync()
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
Convert configuredService to either enabledService or hiddenService
depending on the state of the server role. This is to fix situations
when deployment has happened before introduction of hidden replicas
as those services will stay as configuredService and will not get
started after upgrade, rendering the system non-functioning.
Fixes: https://pagure.io/freeipa/issue/8623
Signed-off-by: Alexander Bokovoy <abokovoy@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>
resolve_ip_addresses_nss(host) is equivalent to
get_server_ip_address(api.env.host, True, False, []). The function
get_server_ip_address() is designed to perform interactive checks that
should not be triggered in automatic upgrade code.
Related: https://pagure.io/freeipa/issue/8275
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
The step set_audit_renewal modifies Dogtag's caSignedLogCert.cfg to bump
renewal to 2 years. The problem was fixed in Dogtag upstream in 2012 before
Dogtag 10.0 came out, see
f5b8ea5b08
The update step would also no longer work. Profiles have been migrated
to LDAP several FreeIPA releases ago. pkispawn populates LDAP with all
of Dogtag's default profiles. FreeIPA does not overwrite any existing
profiles.
Related: https://pagure.io/freeipa/issue/8521
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
Setting up resolv.conf in BIND instance expects IP addresses of the
server to be provided. This is done wiht BindInstance.setup() method
call. However, when reusing resolver setup during upgrade BIND instance
has no IP addresses configured and fails with an assert in
tasks.configure_dns_resolver().
Pass through the server's IP addresses during upgrade.
Fixes: https://pagure.io/freeipa/issue/8518
Signed-off-by: Alexander Bokovoy <abokovoy@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>
Create systemd-resolved drop-in and restart the service when the drop-in
config file is missing and /etc/resolv.conf points to stub resolver
config file.
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
New classes for user and group names provide a convenient way to access
the uid and primary gid of a user / gid of a group. The classes also
provide chown() and chgrp() methods to simplify common operations.
The wrappers are subclasses of builtin str type and behave like ordinary
strings with additional features. The pwd and grp structs are retrieved
once and then cached.
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
When asking the quesiton "is my IPA server configured?" right now
we look at whether the installation backed up any files and set
any state. This isn't exactly precise.
Instead set a new state, installation, to True as soon as IPA
is restarted at the end of the installer.
On upgrades existing installations will automatically get this
state.
This relies on the fact that get_state returns None if no state
at all is set. This indicates that this "new" option isn't available
and when upgrading an existing installation we can assume the
install at least partly works.
The value is forced to False at the beginning of a fresh install
so if it fails, or is in a transient state like with an external
CA, we know that the installation is not complete.
https://pagure.io/freeipa/issue/8384
Signed-off-by: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
Reviewed-By: Francois Cami <fcami@redhat.com>
pki-server-10.9.0-0.3 relocates the ACME schema LDIF file. Look for
the file in both the old and new locations to smooth the transition.
Part of: https://pagure.io/freeipa/issue/4751
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
When configuring the CA, create, configure and deploy the PKI ACME
service instance. This includes creation (if necessary) of the LDAP
container object heirarchy in which ACME-related objects will be
stored.
Dogtag ACME RA account management will be added in a subsequent
commit, removing the use of the 'uid=admin' account (which as of
this commit just has a bogus password).
Part of: https://pagure.io/freeipa/issue/4751
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
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>
/etc/named.conf is now owned by IPA. The file is overwritten on
installation and all subsequent updates. All user modification will be
lost. Config file creation and update use the same code paths.
This simplifies upgrade process a lot. There is no errprone fiddling
with config settings any more.
During upgrade there is a one-time backup of named.conf to
named.conf.ipa-backup. It allows users to salvage their customization
and move them to one of two user config files which are included by
named.conf.
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
The upgrade step used to add "dnssec-validation no" to named.conf IFF
named.conf did not contain "dnssec-validation" option at all. The
option has been moved to 'ipa-options-ext.conf' in IPA 4.8.7. The function
only removes the upgrade state.
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
During upgrade, if discrepancies are detected in Certmonger tracking
request configuration we remove and re-create tracking requests.
The default behaviour of the CAInstance and KRAInstance
stop_tracking_certificates() method is to stop certmonger after the
requests have been removed. This behaviour results in an
unnecessary restart of certmonger and has also been observed to
cause problems. For example, subsequent certmonger operations have
to start the certmonger process and can fail because certmonger is
not yet properly initialised (manifesting as D-Bus errors).
Suppress the unnecessary restart(s) of certmonger during tracking
request update.
Related: https://pagure.io/freeipa/issue/8186
Reviewed-By: Alexander Bokovoy <abbra@users.noreply.github.com>
Upgrade path to add additional include to named.conf is not handled.
Remove bindkeys-file directive from named config
The ISC DVL service was shut down (https://www.isc.org/bind-keys/).
BIND versions since April 2017 (i.e. 9.9.10, 9.10.5, 9.11.1 and later)
include a hard-coded copy of the root KSK which gets updates automatically
according to RFC 5011.
Move dnssec-enable directive to custom named config
Move comment named config being managed by FreeIPA to the top
Move settings which could be changed by administrators to
ipa-options-ext.conf. Settings defined there are sole responsibility of the
administrator. We do not check if they might collide with our settings in
named.conf.
Fixes: https://pagure.io/freeipa/issue/8287
Co-authored-by: Peter Keresztes Schmidt <carbenium@outlook.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
``dnssec-enable`` is obsolete in 9.16 and raises a warning. The option
defaults to ``yes`` in all supported versions of bind. The option is
removed when set to ``yes`` and a warning is emitted when the value is
``no``.
DNSSEC lookaside validation has been deprecated by RFC 8749 and the
feature removed from Bind 9.16. The only available lookaside provider
dlv.isc.org no longer provides DLV information since 2017.
Fixes: https://pagure.io/freeipa/issue/8349
Fixes: https://pagure.io/freeipa/issue/8350
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
For detailed discussion on the purpose of this change and the design
decisions made, see `git log -1 $THIS_COMMIT~3`.
If the HTTP certificate does not have the ipa-ca.$DOMAIN dNSName,
resubmit the certificate request to add the name. This action is
performed after the tracking request has already been updated.
Note: due to https://pagure.io/certmonger/issue/143, the resubmitted
request, if it does not immediately succeed (fairly likely during
ipa-server-upgrade) and if the notAfter date of the current cert is
still far off (also likely), then Certmonger will wait 7 days before
trying again (unless restarted). There is not much we can do about
that in the middle of ipa-server-upgrade.
Part of: https://pagure.io/freeipa/issue/8186
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
AJP implementation in Tomcat is vulnerable to CVE-2020-1938 if used
without shared secret. Set up a shared secret between localhost
connector and Apache mod_proxy_ajp pass-through.
For existing secured AJP pass-through make sure the option used for
configuration on the tomcat side is up to date. Tomcat 9.0.31.0
deprecated 'requiredSecret' option name in favor of 'secret'. Details
can be found at https://tomcat.apache.org/migration-9.html#Upgrading_9.0.x
Fixes: https://pagure.io/freeipa/issue/8221
Signed-off-by: Alexander Bokovoy <abokovoy@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Florence Blanc-Renaud <flo@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
Previously in order to enable the LDAP profile subsystem
the ca_enable_ldap_profile_subsystem() would check the
current value of the profile subsystem class parameter in
CS.cfg. If the parameter was still set to the default value
(i.e. ProfileSubsystem), the code would change it to
LDAPProfileSubsystem.
There is a effort in PKI to clean up the profile subsystem
classes which may require changing the default value for
this parameter. However, this improvement is blocked since
the ca_enable_ldap_profile_subsystem() is implicitly assuming
that the default value will always be ProfileSubsystem.
This patch modifies the code such that instead of checking
for a specific value that needs to be changed, it will check
whether it has the desired value already. This mechanism
will reduce potential conflicts with future PKI improvements.
Reviewed-By: Fraser Tweedale <ftweedal@redhat.com>
Commit 49cf5ec64b fixed a bug that
prevented migration from externally-signed to self-signed IPA CA.
But it introduced a subtle new issue: certmonger-initiated renewal
renews an externally-signed IPA CA as a self-signed CA.
To resolve this issue, introduce the `--force-self-signed' flag for
the dogtag-ipa-ca-renew-agent script. Add another certmonger CA
definition that calls this script with the `--force-self-signed'
flag. Update dogtag-ipa-ca-renew-agent to only issue a self-signed
CA certificate if the existing certificate is self-signed or if
`--force-self-signed' was given. Update `ipa-cacert-manage renew'
to supply `--force-self-signed' when appropriate.
As a result of these changes, certmonger-initiated renewal of an
externally-signed IPA CA certificate will not issue a self-signed
certificate.
Fixes: https://pagure.io/freeipa/issue/8176
Reviewed-By: Florence Blanc-Renaud <frenaud@redhat.com>
urllib3 now supports post-handshake authentication with TLS 1.3. Enable
TLS 1.3 support for Apache HTTPd.
The update depends on bug fixes for TLS 1.3 PHA support in urllib3 and
Apache HTTPd. New builds are available in freeipa-master COPR and in
F30/F31.
Overwrite crypto-policy on Fedora only. Fedora 31 and earlier have TLS
1.0 and 1.1 still enabled by default.
Fixes: https://pagure.io/freeipa/issue/8125
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Thomas Woerner <twoerner@redhat.com>
While [1] did open recursion, it also opened widely a security flaw.
This patch intends to close it back, while allowing operators to easily
add their open configuration within Bind9.
In order to allow operators to still open Bind recursion, a new file is
introduced, "ipa-ext.conf" (path might change according to the OS). This
file is not managed by the installer, meaning changes to it won't be
overridden.
Since it's included at the very end of the main configuration file, it
also allows to override some defaults - of course, operators have to be
careful with that.
Related-Bug: https://bugzilla.redhat.com/show_bug.cgi?id=1754530
Fixes: https://pagure.io/freeipa/issue/8079
[1] 5f4c75eb28
Reviewed-By: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
Reviewed-By: Stanislav Levin <slev@altlinux.org>
This patche removes 93 pylint deprecation warnings due to invalid escape
sequences (mostly 'invalid escape sequence \d') on unicode strings.
Signed-off-by: Rafael Guterres Jeffman <rjeffman@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>
