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If the name passed to the net command with the -S options is the long
hostname of the domaincontroller and not the 15 char NetBIOS name we
should construct a FQDN with the realm to get a Kerberos ticket.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=10829
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
Avoid overriding default ccache for ads operations.
Nowadays various samba components may need to use GSSAPI and a default cred
cache to perform their tasks.
This code was completely overriding the whole process default ccache name, thus
altering the current credentials and sometimes hijacking them (or getting
preemptively hijaked).
By using gss_krb5_import_cred we can instead use a private ccache (necessary
sometimes to use a different set of credentials fromt he default
cifs/fqdn@realm one, for example when contacting foreign DCs using trust
credentials) that does not affect the rest of the process.
For the kerberos versions which don't have gss_krb5_import_cred
we fallback to temp override of KRB5CCNAME and gss_acquire_cred.
Signed-off-by: Alexander Bokovoy <ab@samba.org>
Signed-off-by: Günther Deschner <gd@samba.org>
Autobuild-User(master): Alexander Bokovoy <ab@samba.org>
Autobuild-Date(master): Wed Sep 12 21:18:09 CEST 2012 on sn-devel-104
With waf build include directories are defined by dependencies specified to subsystems.
Without proper dependency <gssapi/gssapi.h> cannot be found for embedded Heimdal builds
when there are no system-wide gssapi/gssapi.h available.
Split out GSSAPI header includes in a separate replacement header and use that explicitly
where needed.
Autobuild-User: Alexander Bokovoy <ab@samba.org>
Autobuild-Date: Wed Apr 25 00:18:33 CEST 2012 on sn-devel-104
This allows us to use the shared gensec_wrap() implementation already used by the
smb sealing code, as well as making this code more generic.
Andrew Bartlett
Signed-off-by: Stefan Metzmacher <metze@samba.org>
There is no need to mask out these flags as they simply are not set
yet.
The correct abstraction is to ask for NTLMSSP features.
Andrew Bartlett
Signed-off-by: Andrew Tridgell <tridge@samba.org>
There is no reason this can't be a normal constant string in the
loadparm system, now that we have lp_set_cmdline() to handle overrides
correctly.
Andrew Bartlett
This principal is not supplied by later versions of windows, and using
it opens up some oportunities for man in the middle attacks. (Becuase
it isn't the name being contacted that is verified with the KDC).
This adds the option 'client use spnego principal' to the smb.conf (as
used in Samba4) to control this behaivour. As in Samba4, this
defaults to false.
Against 2008 servers, this will not change behaviour. Against earlier
servers, it may cause a downgrade to NTLMSSP more often, in
environments where server names are not registered with the KDC as
servicePrincipalName values.
Andrew Bartlett
Found by the CodeNomicon test suites at the SNIA plugfest.
http://www.codenomicon.com/
If an invalid SPNEGO packet contains no OIDs we crash in the SMB1/SMB2 server
as we indirect the first returned value OIDs[0], which is returned as NULL.
Jeremy.
This ensures the results can't be easily left to leak.
Andrew Bartlett
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Günther Deschner <gd@samba.org>
The code is not yet in common, but I hope to fix that soon.
Andrew Bartlett
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Günther Deschner <gd@samba.org>
If server requires LDAP signing we're getting LDAP_STRONG_AUTH_REQUIRED,
if "client ldap sasl wrapping = plain", instead of failing we now
autoupgrade to "client ldap sasl wrapping = sign" for the given connection.
metze
bugs in various places whilst doing this (places that assumed
BOOL == int). I also need to fix the Samba4 pidl generation
(next checkin).
Jeremy.
(This used to be commit f35a266b3c)
The translate_name() used by cli_session_setup_spnego() cann rely
Winbindd since it is needed by the join process (and hence before
Winbind can be run).
(This used to be commit 00a93ed336)
The gss_import_name() broke as we switched from the internal MIT OID
"gss_nt_krb5_principal" to "GSS_KRB5_NT_PRINCIPAL_NAME" and didn't switch from
passing the krb5_principal (or better: a pointer to that, see MIT's "*HORRIBLE*
bug") to pass the string principal directly.
Jerry, Jeremy, neither I could figure out the need of passing in a
krb5_principal at all nor could I reproduce the crash you were seeing.
I sucessfully tested the code (now importing a string) with MIT 1.2.7, 1.3.6,
1.4.3, 1.5.1, 1.6.1 and Heimdal 0.7.2, 1.0, 1.0.1.
Guenther
(This used to be commit cb2dc715e3)
"not_defined_in_RFC4178@please_ignore" case to make at least LDAP SASL binds
succeed with windows server 2008.
Guenther
(This used to be commit f5b3de4d30)
Heimdal doesn't accept all OIDs and gss_import_name() fails with
GSS_S_BAD_NAMETYPE using this one. Use the GSS_KRB5_NT_PRINCIPAL_NAME OID
instead (which works with at least MIT 1.6.1 and Heimdal 1.0.1).
Guenther
(This used to be commit f783b32b65)
- with the "GSSAPI" sasl mech the plain, sign or seal negotiation
is independed from the req_flags and ret_flags
- verify the server supports the wrapping type we want
- better handling on negotiated buffer sizes
metze
(This used to be commit d0ec732387)
also for the "GSSAPI" sasl mech.
- also use the ads_kinit_password() fallback logic
from the "GSS-SPNEGO" sasl mech.
metze
(This used to be commit cbaf44de1e)
