verify_server_cert_validity() and verify_ca_cert_validity() now check
the validity time range of external certificates. The check fails if the
certificate is not valid yet or will expire in less than an hour.
Fixes: https://pagure.io/freeipa/issue/8142
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
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>
With ipa 4.5+, the RA cert is stored in files in
/var/lib/ipa/ra-agent.{key|pem}. The upgrade code handles
the move from /etc/httpd/alias to the files but does not remove
the private key from /etc/httpd/alias.
The fix calls certutil -F -n ipaCert to remove cert and key,
instead of -D -n ipaCert which removes only the cert.
Fixes: https://pagure.io/freeipa/issue/7329
Reviewed-By: Fraser Tweedale <ftweedal@redhat.com>
In the get_trust_chain method, use certutil -O with the option
--simple-self-signed to make sure that self-signed certs properly
get processed.
Note: this option has been introduced in nss 3.38 and our spec file
already requires nss >= 3.41.
Scenario: when IPA CA is switched from self-signed to externally-signed,
then back to self-signed, the same nickname can be used in
/etc/pki/pki-tomcat/alias for the initial cert and the renewed certs. If
the original and renewed certs are present in the NSS db, running
$ certutil -O -n <IPA CA alias>
produces a complex output like the following (this command is used to find
the trust chain):
"CN=Cert Auth,O=ExtAuth" [CN=Cert Auth,O=ExtAuth]
"caSigningCert cert-pki-ca" [CN=Certificate Authority,O=DOMAIN.COM]
"caSigningCert cert-pki-ca" [CN=Certificate Authority,O=DOMAIN.COM]
The renewal code is disturbed by this output.
If, on the contrary, certutil -O --simple-self-signed -n <IPA CA alias> is
used to extract the trust chain, the output is as expected for a self-signed
cert:
"caSigningCert cert-pki-ca" [CN=Certificate Authority,O=DOMAIN.COM]
As a result, the scenario self-signed > externally signed > self-signed
works.
Fixes: https://pagure.io/freeipa/issue/7926
Reviewed-By: Oleg Kozlov <okozlov@redhat.com>
A PKCS#12 file is generated from a set of input files in various
formats. This file is then used to provide the public and private
keys and certificate chain fro importing into an NSS database.
In order to work in FIPS mode stronger encryption is required.
The default OpenSSL certificate algo is 40-bit RC2 which is not
allowed in FIPS mode. The default private key algo is 3DES.
Use AES-128 instead for both.
Fixes: https://pagure.io/freeipa/issue/7948
Signed-off-by: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>
IPA no verifies that intermediate certs of external CAs have a basic
constraint path len of at least 1 and increasing.
Fixes: https://pagure.io/freeipa/issue/7877
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Fraser Tweedale <ftweedal@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
pylint 2.2.0 has a new checker for unnecessary pass statements. There is
no need to have a pass statement in functions or classes with a doc
string.
Fixes: https://pagure.io/freeipa/issue/7772
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Thomas Woerner <twoerner@redhat.com>
PR https://github.com/freeipa/freeipa/pull/2554 added the '-e' option for CA
cert validation. Let's also verify signature, key size, and signing algorithm
of server certs. With the '-e' option, the installer and other
tools will catch weak certs early.
Fixes: pagure.io/freeipa/issue/7761
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Fraser Tweedale <ftweedal@redhat.com>
When verifying a CA certificate, validate its signature. This
causes FreeIPA to reject certificate chains with bad signatures,
signatures using unacceptable algorithms, or certificates with
unacceptable key sizes. The '-e' option to 'certutil -V' was the
missing ingredient.
An an example of a problem prevented by this change, a certifiate
signed by a 1024-bit intermediate CA, would previously have been
imported by ipa-cacert-manage, but would cause Dogtag startup
failure due to failing self-test. With this change,
ipa-cacert-manage will reject the certificate:
# ipa-cacert-manage renew --external-cert-file /tmp/ipa.p7
Importing the renewed CA certificate, please wait
CA certificate CN=Certificate Authority,O=IPA.LOCAL 201809261455
in /tmp/ipa.p7 is not valid: certutil: certificate is invalid: The
certificate was signed using a signature algorithm that is
disabled because it is not secure.
Fixes: https://pagure.io/freeipa/issue/7761
Reviewed-By: Christian Heimes <cheimes@redhat.com>
Installation or IPA CA renewal with externally-signed CA accepts an
IPA CA certificate with empty Subject Key Identifier. This is
technically legal in X.509, but is an operational issue.
Furthermore, due to an extant bug in Dogtag
(https://pagure.io/dogtagpki/issue/3079) it will cause Dogtag
startup failure.
Reject CA certificates with empty Subject Key Identifier.
Fixes: https://pagure.io/freeipa/issue/7762
Reviewed-By: Christian Heimes <cheimes@redhat.com>
ipa-server-install or ipa-replica-install do not provide
a meaningful error message in CA-less mode when the install
fails because of a wrong PIN.
Update the err msg so that it provides a hint to the user.
Fixes https://pagure.io/freeipa/issue/5378
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>
Calls to `os.fsync(f.fileno())` need to be accompained by `f.flush()`.
Commit 8bbeedc93f introduces the helper
`ipapython.ipautil.flush_sync()`, which handles all calls in the right
order.
However, `flush_sync()` takes as parameter a file object with fileno
and name, where name must be a path to the file, this isn't possible
in some cases where file descriptors are used.
Issue: https://pagure.io/freeipa/issue/7251
Signed-off-by: Armando Neto <abiagion@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>
Test more scenarios like replication replica -> master. Verify that master
and replica have all expected certs with correct trust flags and all keys.
See: https://pagure.io/freeipa/issue/7590
See: https://pagure.io/freeipa/issue/7589
Fixes: https://pagure.io/freeipa/issue/7611
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
Only certutil creates files in the local directory. Changing the
directory for pk12util breaks ipa-server-certinstall if the
PKCS#12 file is not passed in as an absolute path.
https://pagure.io/freeipa/issue/7489
Signed-off-by: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Alexey Slaykovsky <alexey@slaykovsky.com>
According to a comment, certutil may create files in the current working
directory. Rather than changing the cwd of the current process,
FreeIPA's certutil wrapper now changes cwd for the subprocess only.
See: https://pagure.io/freeipa/issue/7416
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
The disable system trust feature is no longer used.
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
CertDB no longer makes any assumptions about the default db type of a NSS
DB. Instead it let's certutil decide when dbtype is set to 'auto'. This
makes it much easier to support F27 and F28 from a single code base.
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
- Refactor CertDB to look up values from its NSSDatabase.
- Add run_modutil() helpers to support sql format. modutil does not
auto-detect the NSSDB format.
- Add migration helpers to CertDB.
- Add explicit DB format to NSSCertificateDatabase stanza
- Restore SELinux context when migrating NSSDB.
- Add some debugging and sanity checks to httpinstance.
The actual database format is still dbm. Certmonger on Fedora 27 does
neither auto-detect DB format nor support SQL out of the box.
https://pagure.io/freeipa/issue/7354
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
When ipa-server-install is run in fips mode and ca-less, the installer
fails when the keys are provided with --{http|dirsrv|pkinit}-cert-file
in a separate key file.
The installer transforms the key into PKCS#8 format using
openssl pkcs8 -topk8
but this command fails on a fips-enabled server, unless the options
-v2 aes256 -v2prf hmacWithSHA256
are also provided.
Fixes:
https://pagure.io/freeipa/issue/7280
Reviewed-By: Christian Heimes <cheimes@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>
Instead of symlinks and build-time configuration the ipaplatform module
is now able to auto-detect platforms on import time. The meta importer
uses the platform 'ID' from /etc/os-releases. It falls back to 'ID_LIKE'
on platforms like CentOS, which has ID=centos and ID_LIKE="rhel fedora".
The meta importer is able to handle namespace packages and the
ipaplatform package has been turned into a namespace package in order to
support external platform specifications.
https://fedorahosted.org/freeipa/ticket/6474
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
When writing extracted certs and keys to the file, we opened the
same file at a different spot but the original file position
indicator would not be moved when the certificate is written there.
The result is that the certificate gets rewritten by the private
key. This commit fixes it.
Fixes: https://pagure.io/freeipa/issue/7118
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
Reviewed-By: Fraser Tweedale <ftweedal@redhat.com>
Certificates, both in PEM and DER format, should be handled as bytes
in Python 3.
https://pagure.io/freeipa/issue/4985
Reviewed-By: Fraser Tweedale <ftweedal@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Martin Basti <mbasti@redhat.com>
Splitting the load_certificate() function into two separate helps
us word the requirements for the input explicitly. It also makes
our backend similar to the one of python-cryptography so eventually
we can swap python-cryptography for IPA x509 module.
https://pagure.io/freeipa/issue/4985
Reviewed-By: Fraser Tweedale <ftweedal@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Martin Basti <mbasti@redhat.com>
KDC cert validation was added but provides rather non-descriptive
error should there be something wrong with a certificate. Pass
the error message from the `openssl` tool in such cases.
https://pagure.io/freeipa/issue/6945
Reviewed-By: Martin Babinsky <mbabinsk@redhat.com>
Previous attempt to improve error messages during certificate
validation would only work in English locale so we're keeping
the whole NSS messages for all cases.
https://pagure.io/freeipa/issue/6945
Reviewed-By: Martin Babinsky <mbabinsk@redhat.com>
CA certificates MUST have the Subject Key Identifier extension to
facilitiate certification path construction. Not having this
extension on the IPA CA certificate will cause failures in Dogtag
during signing; it tries to copy the CA's Subject Key Identifier to
the new certificate's Authority Key Identifier extension, which
fails.
When installing an externally-signed CA, check that the Subject Key
Identifier extension is present in the CA certificate.
Fixes: https://pagure.io/freeipa/issue/6976
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
Verify that the provided certificate has the extended key usage and subject
alternative name required for KDC.
https://pagure.io/freeipa/issue/6831https://pagure.io/freeipa/issue/6869
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
Reviewed-By: Martin Babinsky <mbabinsk@redhat.com>
Trust IPA CA to issue PKINIT KDC and client authentication certificates in
the IPA certificate store.
https://pagure.io/freeipa/issue/6831
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
Reviewed-By: Martin Babinsky <mbabinsk@redhat.com>
Replace trust flag strings with `TrustFlags` objects. The `TrustFlags`
class encapsulates `certstore` key policy and has an additional flag
indicating the presence of a private key.
https://pagure.io/freeipa/issue/6831
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
Reviewed-By: Martin Babinsky <mbabinsk@redhat.com>
Make the trust flags argument mandatory in all functions in `certdb` and
`certs`.
https://pagure.io/freeipa/issue/6831
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
Reviewed-By: Martin Babinsky <mbabinsk@redhat.com>
Add named constants for common trust flag combinations.
Use the named constants instead of trust flags strings in the code.
https://pagure.io/freeipa/issue/6831
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
Reviewed-By: Martin Babinsky <mbabinsk@redhat.com>
When the certificate validation was replaced, some error messages
were omitted (like "Peer's certificate expired."). Bring these back.
https://pagure.io/freeipa/issue/6945
Reviewed-By: Florence Blanc-Renaud <frenaud@redhat.com>
`NSSDatabase.verify_ca_cert_validity` tries to access a property of basic
constraints extension on the extension object itself rather than its value.
Access the attribute on the correct object to fix the issue.
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
Restore cert8.db, key3.db, pwdfile.txt and secmod.db in /etc/httpd/alias
from backup on uninstall.
Files modified by IPA are kept with .ipasave suffix.
https://pagure.io/freeipa/issue/4639
Reviewed-By: Martin Babinsky <mbabinsk@redhat.com>
Add new pylint AST checker plugin which implements a check for imports
forbidden in IPA. Which imports are forbidden is configurable in pylintrc.
Provide default forbidden import configuration and disable the check for
existing forbidden imports in our code base.
Reviewed-By: Martin Basti <mbasti@redhat.com>
It's not necesary to restore the context of newly created files. SELinux
ensures that new files have the correct permission. An explicit
restore_context() is only required when either policies have changed or
the context was changed manually.
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Martin Basti <mbasti@redhat.com>
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
The NSS database directory is created with mode 640, which causes the IPA
client to fail to connect to any IPA server, because it is unable to read
trusted CA certificates from the NSS database.
Create the directory with mode 644 to fix the issue.
https://fedorahosted.org/freeipa/ticket/5959
Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>
