The Custodia key export handler is using the default's OpenSSL encryption
scheme for PKCS#12.
This represents an issue when performing a migration from CentOS Stream 8 (C8S)
to CentOS Steam 9 (C9S) where the Custodia client running in the new C9S
replica talks to the Custodia server on C8S source server. The later creates an
encrypted PKCS#12 file that contains the cert and the key using the OpenSSL's
default encryption scheme, which is no longer supported on C9S.
This commit enforces a stronger encryption algorigthm by adding following
arguments to the Custodia server handler:
-keypbe AES-256-CBC -certpbe AES-256-CBC -macalg sha384
The new arguments enforce stronger PBEv2 instead of the insecure PBEv1.
Fixes: https://pagure.io/freeipa/issue/9101
Signed-off-by: Francisco Trivino <ftrivino@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Florence Blanc-Renaud <flo@redhat.com>
See: https://pagure.io/freeipa/issue/8882
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
See: https://pagure.io/freeipa/issue/8882
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
Add support for Custodia ca_wrapped clients to specify the desired
symmetric encryption algorithm for exporting the wrapped signing key
(this mechanism is used for LWCA key replication). If not
specified, we must assume that the client has an older Dogtag
version that can only import keys wrapped with DES-EDE3-CBC
encryption.
The selected algorithm gets passed to the 'nsswrappedcert' handler,
which in turn passes it to the 'pki ca-authority-key-export' command
(which is part of Dogtag).
Client-side changes will occur in a subsequent commit.
Part of: https://pagure.io/freeipa/issue/8020
Reviewed-By: Alexander Bokovoy <abbra@users.noreply.github.com>
To support lightweight CA key replication using AES, while retaining
backwards compatibility with old servers, it is necessary to signal
support for AES. Whereas we currently request a key with the path:
/keys/ca_wrapped/<nickname>
and whereas paths with > 3 components are unsupported, add support
for handlers to signal that they support extra arguments (defaulting
to False), those arguments being conveyed as additional path
components, e.g.:
# 2.16.840.1.101.3.4.1.2 = aes128-cbc
/keys/ca_wrapped/<nickname>/2.16.840.1.101.3.4.1.2
This commit only adds the Custodia support for extra handler
arguments. Work to support LWCA key replication with AES wrapping
will continue in subsequent commits.
Part of: https://pagure.io/freeipa/issue/8020
Reviewed-By: Alexander Bokovoy <abbra@users.noreply.github.com>
Helper scripts now use api.bootstrap(log=None) to avoid the creation of
log files. Helper scripts are typically executed from daemons which
perform their own logging. The helpers still log to stderr/stdout.
This also gets rid of some SELinux AVCs when the script tries to write
to /root/.ipa/.
Fixes: https://pagure.io/freeipa/issue/8075
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
A CustodiaClient object has to the process environment a bit, e.g. set
up GSSAPI credentials. To reuse the credentials in libldap connections,
it is also necessary to set up a custom ccache store and to set the
environment variable KRBCCNAME temporarily.
Fixes: https://pagure.io/freeipa/issue/7964
Co-Authored-By: Fraser Tweedale <ftweedal@redhat.com>
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Fraser Tweedale <ftweedal@redhat.com>
Implement the import and export handlers for Custodia keys as external
scripts. It's a prerequisite to drop DAC override permission and proper
SELinux rules for ipa-custodia.
Except for DMLDAP, handlers no longer run as root but as handler
specific users with reduced privileges. The Dogtag-related handlers run
as pkiuser, which also help with HSM support.
The export and import handles are designed to be executed by sudo, too.
In the future, ipa-custodia could be executed as an unprivileged process
that runs the minimal helper scripts with higher privileges.
Fixes: https://pagure.io/freeipa/issue/6888
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
Replace six.moves and six.StringIO/BytesIO imports with cannonical
Python 3 packages.
Note: six.moves.input behaves differently than builtin input function.
Therefore I left six.moves.input for now.
See: https://pagure.io/freeipa/issue/7715
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Fraser Tweedale <ftweedal@redhat.com>
Python 2 had old style and new style classes. Python 3 has only new
style classes. There is no point to subclass from object any more.
See: https://pagure.io/freeipa/issue/7715
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Florence Blanc-Renaud <frenaud@redhat.com>
Aiming to support pylint 2.0 some functions and methods must have their
return statements updated in order to fix two new violations:
- `useless-return` (R1711):
Useless return at end of function or method Emitted when a single
"return" or "return None" statement is found at the end of function
or method definition. This statement can safely be removed because
Python will implicitly return None
- `inconsistent-return-statements` (R1710):
Either all return statements in a function should return an
expression, or none of them should. According to PEP8, if any return
statement returns an expression, any return statements where no value
is returned should explicitly state this as return None, and an
explicit return statement should be present at the end of the
function (if reachable)
Issue: https://pagure.io/freeipa/issue/7614
Signed-off-by: Armando Neto <abiagion@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>
Add absolute_import from __future__ so that pylint
does not fail and to achieve python3 behavior in
python2.
Reviewed-By: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
Replace all ldap.initialize() calls with a helper function
ldap_initialize(). It handles cacert and cert validation correctly. It
also provides a unique place to handle python-ldap 3.0 bytes warnings in
the future.
Fixes: https://pagure.io/freeipa/issue/7411
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
"ipa-server-install --uninstall" no longer fails with error message
"'Env' object has no attribute 'basedn'" when executed on a system that
has no freeIPA server installation.
Fixes: https://pagure.io/freeipa/issue/7063
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Felipe Volpone <fbarreto@redhat.com>
The Custodia instance is removed when LDAP is already shut down. Don't
fail and only remove the key files from disk. The server_del command
takes care of all Custodia keys in LDAP.
https://pagure.io/freeipa/issue/7318
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Florence Blanc-Renaud <frenaud@redhat.com>
Keys are removed from disk and LDAP
https://pagure.io/freeipa/issue/7253
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
Prepare CertDB and NSSDatabase to support sqlite DB format. NSSDatabase
will automatically detect and use either old DBM or new SQL format. Old
databases are not migrated yet.
https://pagure.io/freeipa/issue/7049
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
/etc/pki/pki-tomcat/password.conf contains additional passwords like
replicadb. ipa-custodia does not need these passwords.
/etc/pki/pki-tomcat/alias/pwdfile.txt holds the passphrase for Tomcat's
NSSDB. The file also simplifies implementation because it removes
another temporary file.
pwdfile.txt is created by CAInstance.create_certstore_passwdfile()
Related: https://pagure.io/freeipa/issue/6888
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Simo Sorce <ssorce@redhat.com>
requests.packages contains but a weird backward compatibility fix
for its presumed urllib3 submodule but pylint does not approve.
Reviewed-By: Tomas Krizek <tkrizek@redhat.com>
pylint is somehow confused about us importing custodia in
ipaserver.secrets.* modules, disable the check for these.
https://pagure.io/freeipa/issue/6874
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
bytes/str fixes for LDAP data, JSON encoding and temp files.
Require jwcrpyto 0.4.2 with fix for RHBZ #1476150https://pagure.io/freeipa/issue/4985
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Simo Sorce <ssorce@redhat.com>
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
ipa-kra-install on a replica checks that the keys are available before
going further to avoid race condition due to replication. The issue is
that the check_host_keys method expects to find exactly one key for
cn=env/host but 2 may exist: one below cn=custodia and one below
cn=dogtag,cn=custodia.
The fix is to check that at least one key exist (not exactly one key).
https://pagure.io/freeipa/issue/6934
Reviewed-By: Martin Basti <mbasti@redhat.com>
In complex replication setups a replica may try to obtain CA keys from a
host that is not the master we initially create the keys against.
In this case race conditions may happen due to replication. So we need
to make sure the server we are contacting to get the CA keys has our
keys in LDAP. We do this by waiting to positively fetch our encryption
public key (the last one we create) from the target host LDAP server.
Fixes: https://pagure.io/freeipa/issue/6838
Signed-off-by: Simo Sorce <simo@redhat.com>
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>
* Use sd-notify in ipa-custodia.service
* Introduce libexec/ipa/ipa-custodia script. It comes with correct
default setting for IPA's config file. The new file also makes it
simpler to run IPA's custodia instance with its own SELinux context.
* ipapython no longer depends on custodia
The patch addresses three issues:
* https://bugzilla.redhat.com/show_bug.cgi?id=1430247
Forward compatibility with Custodia 0.3 in Fedora rawhide
* https://pagure.io/freeipa/issue/5825
Use sd-notify
* https://pagure.io/freeipa/issue/6788
Prepare for separate SELinux context
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Martin Basti <mbasti@redhat.com>
Reviewed-By: Jan Cholasta <jcholast@redhat.com>
The "ipaCert" nicknamed certificate is not required to be
in /var/lib/ipa/radb NSSDB anymore as we were keeping a copy
of this file in a separate file anyway. Remove it from there
and track only the file. Remove the IPA_RADB_DIR as well as
it is not required anymore.
https://fedorahosted.org/freeipa/ticket/5695https://fedorahosted.org/freeipa/ticket/6680
Reviewed-By: Jan Cholasta <jcholast@redhat.com>
This is a preparation step to be able to handle sending RA agent
certificate over Custodia during domain level 1 replica installation.
https://fedorahosted.org/freeipa/ticket/5695
Reviewed-By: Jan Cholasta <jcholast@redhat.com>
This is in preparation for separating out the user under which the
ipa api framework runs as.
This commit also removes certs.NSS_DIR to avoid confusion and replaces
it where appropriate with the correct NSS DB directory, either the old
HTTPD_ALIAS_DIR ot the RA DB IPA_RADB_DIR. In some cases its use is
removed altogether as it was simply not necessary.
https://fedorahosted.org/freeipa/ticket/5959
Signed-off-by: Simo Sorce <simo@redhat.com>
Reviewed-By: Jan Cholasta <jcholast@redhat.com>
Exception is too brod and may hide various issues that show up later. If
the code expects that entry may exist, then ldap.ALREADY_EXISTS
exception should be used
Reviewed-By: Jan Cholasta <jcholast@redhat.com>
basedn in custodia related modules has type bytes, that causes issues in
Py3 when strings were concatenated with bytes
```
malformed RDN string = "cn=custodia,cn=ipa,cn=etc,b'dc=example,dc=com'"
```
https://fedorahosted.org/freeipa/ticket/4985
Reviewed-By: Jan Cholasta <jcholast@redhat.com>
configparser.get() changed in python3 and `raw` is now a keyword attribute.
Also it must be set to True, otherwise InterpolationSyntaxError is raised
'''
InterpolationSyntaxError: '%' must be followed by '%' or '(', found:
'%2fvar%2frun%2fslapd-EXAMPLE-COM.socket'
'''
https://fedorahosted.org/freeipa/ticket/4985
Reviewed-By: Jan Cholasta <jcholast@redhat.com>
Using unicode(bytes) call causes undesired side effect that is inserting
`b` character to result. This obviously causes issues with binary base64 data
https://fedorahosted.org/freeipa/ticket/4985
Reviewed-By: Jan Cholasta <jcholast@redhat.com>
A change to the algorithm that generates random passwords
for multiple purposes throught IPA. This spells out the need
to assess password strength by the entropy it contains rather
than its length.
This new password generation should also be compatible with the
NSS implementation of password requirements in FIPS environment
so that newly created databases won't fail with wrong authentication.
https://fedorahosted.org/freeipa/ticket/5695
Reviewed-By: Martin Basti <mbasti@redhat.com>
Reviewed-By: Petr Spacek <pspacek@redhat.com>
Also had to recalculate entropy of the passwords as originally,
probability of generating each character was 1/256, however the
default probability of each character in the ipa_generate_password
is 1/95 (1/94 for first and last character).
https://fedorahosted.org/freeipa/ticket/5695
Reviewed-By: Martin Basti <mbasti@redhat.com>
Reviewed-By: Petr Spacek <pspacek@redhat.com>
The dnssec and secrets subpackages and the p11helper module depend on
ipaplatform.
Move them to ipaserver as they are used only on the server.
https://fedorahosted.org/freeipa/ticket/6474
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
