Commit Graph

22 Commits

Author SHA1 Message Date
Simo Sorce
ab4fcb0fe2 Simplify date manipulation in pwd plugin
Use a helper function to perform operations on dates in LDAP attributes.

Related to #2795

Signed-off-by: Simo Sorce <simo@redhat.com>
Reviewed-by: David Kupka <dkupka@redhat.com>
2016-07-25 05:08:55 -04:00
David Kupka
d2cb9ed327 Allow unexpiring passwords
Treat maxlife=0 in password policy as "never expire". Delete
krbPasswordExpiration in user entry when password should never expire.

https://fedorahosted.org/freeipa/ticket/2795

Reviewed-By: Thierry Bordaz <tbordaz@redhat.com>
Reviewed-By: Pavel Vomacka <pvomacka@redhat.com>
2016-07-01 11:22:02 +02:00
Nathaniel McCallum
168a6c7d47 Ensure that ipa-otpd bind auths validate an OTP
Before this patch, if the user was configured for either OTP or password
it was possible to do a 1FA authentication through ipa-otpd. Because this
correctly respected the configuration, it is not a security error.

However, once we begin to insert authentication indicators into the
Kerberos tickets, we cannot allow 1FA authentications through this
code path. Otherwise the ticket would contain a 2FA indicator when
only 1FA was actually performed.

To solve this problem, we have ipa-otpd send a critical control during
the bind operation which informs the LDAP server that it *MUST* validate
an OTP token for authentication to be successful. Next, we implement
support for this control in the ipa-pwd-extop plugin. The end result is
that the bind operation will always fail if the control is present and
no OTP is validated.

https://fedorahosted.org/freeipa/ticket/433

Reviewed-By: Sumit Bose <sbose@redhat.com>
2016-05-26 18:47:05 +02:00
Nathaniel McCallum
cd9bc84240 Rename syncreq.[ch] to otpctrl.[ch]
This gives us a place to handle all OTP related controls. Also,
genericize otpctrl_present() so that the OID can be specified as an
argument to the function call.

These changes are preparatory for the subsequent patches.

https://fedorahosted.org/freeipa/ticket/433

Reviewed-By: Sumit Bose <sbose@redhat.com>
2016-05-26 18:47:05 +02:00
Simo Sorce
e011b376a5 Improve keytab code to select the right principal.
Whe requesting a keytab the salt used is the NORMAL type (for backwards and AD
compatibility), however since we added alias support we need to search for the
krbCanonicalName in preference, hen nothing is specified, and for the requested
principal name when a getkeytab operation is performed. This is so that the
correct salt can be applied. (Windows AD uses some peculiar aliases for some
special accounts to generate the salt).

Signed-off-by: Simo Sorce <simo@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
2016-02-01 13:28:39 +01:00
Thierry Bordaz
0ebcc5b922 User life cycle: new stageuser commands activate
Add plugin commands to stageuser plugin:
stageuser_activate: activate entries created by IPA CLIs

https://fedorahosted.org/freeipa/ticket/3813

Reviewed-By: David Kupka <dkupka@redhat.com>
2015-05-18 09:37:21 +02:00
Martin Babinsky
b0611bc6c3 ipa-pwd-extop: added an informational comment about intentional fallthrough
This patch is related to this defect reported by covscan in FreeIPA code:

"""
Error: MISSING_BREAK (CWE-484):
/daemons/ipa-slapi-plugins/ipa-pwd-extop/prepost.c:631: unterminated_case: The
case for value "2" is not terminated by a 'break' statement.
/daemons/ipa-slapi-plugins/ipa-pwd-extop/prepost.c:638: fallthrough: The above
case falls through to this one.
"""

Added a comment informing about intentional falltrough in this place, so that
future generations reading the code don't get confused.

The patch is the part of a series related to
https://fedorahosted.org/freeipa/ticket/4795

Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
2015-01-30 11:02:16 +01:00
Nathaniel McCallum
9baa93da1c Make token auth and sync windows configurable
This introduces two new CLI commands:
  * otpconfig-show
  * otpconfig-mod

https://fedorahosted.org/freeipa/ticket/4511

Reviewed-By: Thierry Bordaz <tbordaz@redhat.com>
Reviewed-By: Petr Vobornik <pvoborni@redhat.com>
2014-12-05 13:42:19 +01:00
Nathaniel McCallum
953c6846b7 Move authentication configuration cache into libotp
This enables plugins to share authentication configuration cache code.

Additionally, update the caching mechanism to be declarative and faster.

Reviewed-By: Thierry Bordaz <tbordaz@redhat.com>
2014-12-03 08:48:56 +01:00
Nathaniel McCallum
bdccb0c721 Preliminary refactoring of libotp files
There are no major changes in this commit other than changing filenames
and symbols to have consistent namespaces. This prepares for larger
changes to come in subsequent commits.

Reviewed-By: Thierry Bordaz <tbordaz@redhat.com>
2014-12-03 08:48:56 +01:00
Nathaniel McCallum
79df668b5d Ensure that a password exists after OTP validation
Before this patch users could log in using only the OTP value. This
arose because ipapwd_authentication() successfully determined that
an empty password was invalid, but 389 itself would see this as an
anonymous bind. An anonymous bind would never even get this far in
this code, so we simply deny requests with empty passwords.

This patch resolves CVE-2014-7828.

https://fedorahosted.org/freeipa/ticket/4690

Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
2014-11-06 10:56:19 +01:00
Nathaniel McCallum
7b15fcd57b Change OTPSyncRequest structure to use OctetString
This change has two motivations:
  1. Clients don't have to parse the string.
  2. Future token types may have new formats.

Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
2014-06-25 14:22:01 +02:00
Martin Kosek
c41b782bc5 Revert "Check for password expiration in pre-bind"
This reverts commit bfdbd3b6ad.

Forceful validation of password expiration date in a BIND pre-callback
breaks LDAP password change extended operation as the password change
is only allowed via authenticated (bound) channel. Passwords could be
only changed via kadmin protocol. This change would thus break
LDAP-only clients and Web UI password change hook.

This patch will need to be revisited so that unauthenicated corner
cases are also revisited.

https://fedorahosted.org/freeipa/ticket/1539
2014-06-10 08:42:03 +02:00
Simo Sorce
bfdbd3b6ad Check for password expiration in pre-bind
If the password is expired fail a password bind.

Resolves: https://fedorahosted.org/freeipa/ticket/1539
Reviewed-By: Martin Kosek <mkosek@redhat.com>
Reviewed-By: Nathaniel McCallum <npmccallum@redhat.com>
2014-06-09 08:18:16 +02:00
Tomas Babej
5d78cdf809 ipa-pwd-extop: Deny LDAP binds for accounts with expired principals
Adds a check for krbprincipalexpiration attribute to pre_bind operation
in ipa-pwd-extop dirsrv plugin. If the principal is expired, auth is
denied and LDAP_UNWILLING_TO_PERFORM along with the error message is
sent back to the client. Since krbprincipalexpiration attribute is not
mandatory, if there is no value set, the check is passed.

https://fedorahosted.org/freeipa/ticket/3305

Reviewed-By: Simo Sorce <simo@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
2014-05-05 18:50:01 +03:00
Tomas Babej
5a0d52b939 ipa-pwd-extop: Fix memory leak in ipapwd_pre_bind
We need to free the entry before returning from the function.

https://fedorahosted.org/freeipa/ticket/4295
2014-04-08 14:23:18 +02:00
Nathaniel McCallum
9f62d0c157 Teach ipa-pwd-extop to respect global ipaUserAuthType settings
https://fedorahosted.org/freeipa/ticket/4105

Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
2014-02-21 10:26:02 +01:00
Nathaniel McCallum
a51b07c275 Add OTP sync support to ipa-pwd-extop
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
2014-02-21 10:26:02 +01:00
Sumit Bose
d876a22732 Remove generation and handling of LM hashes
https://fedorahosted.org/freeipa/ticket/3795
2013-11-01 09:28:35 +01:00
Sumit Bose
091e8fac34 Use the right attribute with ipapwd_entry_checks for MagicRegen
There is a special mode to set the ipaNTHash attribute if a RC4 Kerberos
key is available for the corresponding user. This is typically triggered
by samba via the ipa_sam passdb plugin. The principal used by samba to
connect to the IPA directory server has the right to modify ipaNTHash
but no other password attribute. This means that the current check on
the userPassword attribute is too strict for this case and leads to a
failure of the whole operation.

With this patch the access right on ipaNTHash are checked if no other
password operations are requested.
2013-10-08 09:18:57 +02:00
Nathaniel McCallum
5b58348cd3 Add OTP support to ipa-pwd-extop
During LDAP bind, this now plugin determines if a user is enabled
for OTP authentication. If so, then the OTP is validated in addition
to the password. This allows 2FA during user binds.

    https://fedorahosted.org/freeipa/ticket/3367
    http://freeipa.org/page/V3/OTP
2013-05-17 09:30:51 +02:00
Nathaniel McCallum
1e1bab4edc Remove unnecessary prefixes from ipa-pwd-extop files 2013-05-17 09:30:51 +02:00