CVE-2022-37966 s4:libnet: allow python bindings to force setting an nthash via SAMR level 18

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 s4:libnet: add support LIBNET_SET_PASSWORD_SAMR_HANDLE_18 to set nthash only

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 s4:libnet: initialize libnet_SetPassword() arguments explicitly to zero by default.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 drsuapi.idl: add trustedDomain related ATTID values

For now this is only for debugging in order to see
DRSUAPI_ATTID_msDS_SupportedEncryptionTypes in the replication meta
data.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15219
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 s4:kdc: use the strongest possible keys

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13135
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 s4:pydsdb: add ENC_HMAC_SHA1_96_AES256_SK

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 s3:net_ads: let 'net ads enctypes list' pretty print AES256-SK and RESOURCE-SID-COMPRESSION-DISABLED

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 s3:net_ads: no longer reference des encryption types

We no longer have support for des encryption types in the kerberos
libraries anyway.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 s3:libnet: no longer reference des encryption types

We no longer have support for des encryption types in the kerberos
libraries anyway.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 s3:libads: no longer reference des encryption types

We no longer have support for des encryption types in the kerberos
libraries anyway.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 lib/krb5_wrap: no longer reference des encryption types

We no longer have support for des encryption types in the kerberos
libraries anyway.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 s3:net_ads: remove unused ifdef HAVE_ENCTYPE_AES*

aes encryption types are always supported.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 s3:libnet: remove unused ifdef HAVE_ENCTYPE_AES*

aes encryption types are always supported.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 s3:libads: remove unused ifdef HAVE_ENCTYPE_AES*

aes encryption types are always supported.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 lib/krb5_wrap: remove unused ifdef HAVE_ENCTYPE_AES*

aes encryption types are always supported.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 system_mitkrb5: require support for aes enctypes

This will never fail as we already require a version that supports aes,
but this makes it clearer.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 wafsamba: add support for CHECK_VARIABLE(mandatory=True)

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 s4:kdc: also limit the krbtgt history to their strongest keys

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 kdc: Assume trust objects support AES by default

As part of matching the behaviour of Windows, assume that trust objects
support AES256, but not RC4, if not specified otherwise.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15219
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 kdc: Implement new Kerberos session key behaviour since ENC_HMAC_SHA1_96_AES256_SK was added

ENC_HMAC_SHA1_96_AES256_SK is a flag introduced for by Microsoft in this
CVE to indicate that additionally, AES session keys are available. We
set the etypes available for session keys depending on the encryption
types that are supported by the principal.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15219

Pair-Programmed-With: Joseph Sutton <josephsutton@catalyst.net.nz>

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

CVE-2022-37966 selftest: Run S4U tests against FL2003 DC

This shows that changes around RC4 encryption types do not break older
functional levels where only RC4 keys are available.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 selftest: Add tests for Kerberos session key behaviour since ENC_HMAC_SHA1_96_AES256_SK was added

ENC_HMAC_SHA1_96_AES256_SK is a flag introduced for by Microsoft in this CVE
to indicate that additionally, AES session keys are available.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Pair-Programmed-With: Andrew Bartlett <abartlet@samba.org>

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

CVE-2022-37966 tests/krb5: Test different preauth etypes with Protected Users group

Extend the RC4 Protected Users tests to use different preauth etypes.
This helps test the nuances of the new expected behaviour and allows the
tests to continue passing.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 samba-tool: Declare explicitly RC4 support of trust objects

As we will assume, as part of the fixes for CVE-2022-37966, that trust
objects with no msDS-SupportedEncryptionTypes attribute support AES
keys, RC4 support must now be explicitly indicated.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 samba-tool: Fix 'domain trust create' documentation

This option does the opposite of what the documentation claims.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 third_party/heimdal: Fix error message typo

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 param: Add support for new option "kdc force enable rc4 weak session keys"

Pair-Programmed-With: Joseph Sutton <josephsutton@catalyst.net.nz>

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

CVE-2022-37966 param: Add support for new option "kdc default domain supportedenctypes"

This matches the Windows registry key

HKEY_LOCAL_MACHINE\System\CurrentControlSet\services\KDC\DefaultDomainSupportedEncTypes

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Pair-Programmed-With: Andrew Bartlett <abartlet@samba.org>

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

CVE-2022-37967 Add new PAC checksum

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15231

Pair-Programmed-With: Andrew Bartlett <abartlet@samba.org>

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

CVE-2022-37966 HEIMDAL: Look up the server keys to combine with clients etype list to select a session key

We need to select server, not client, to compare client etypes against.

(It is not useful to compare the client-supplied encryption types with
the client's own long-term keys.)

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

CVE-2022-37966 tests/krb5: Add a test requesting tickets with various encryption types

The KDC should leave the choice of ticket encryption type up to the
target service, and admit no influence from the client.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 tests/krb5: Add 'etypes' parameter to _tgs_req()

This lets us select the encryption types we claim to support in the
request body.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 tests/krb5: Split out _tgs_req() into base class

We will use it for testing our handling of encryption types.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-37966 selftest: Allow krb5 tests to run against an IP by using the target_hostname binding string

This makes it easier to test against a server that is not accessible via DNS.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

CVE-2022-37966 libcli/auth: let netlogon_creds_cli_warn_options() about "kerberos encryption types=legacy"

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-37966 testparm: warn about 'kerberos encryption types = legacy'

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-37966 docs-xml/smbdotconf: "kerberos encryption types = legacy" should not be used

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15237

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 testparm: warn about unsecure schannel related options

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 testparm: warn about server/client schannel != yes

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15260

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 s4:rpc_server/netlogon: implement "server schannel require seal[:COMPUTERACCOUNT]"

By default we'll now require schannel connections with
privacy/sealing/encryption.

But we allow exceptions for specific computer/trust accounts.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15260

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 s4:rpc_server/netlogon: add a per connection cache to dcesrv_netr_check_schannel()

It's enough to warn the admin once per connection.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 docs-xml/smbdotconf: add "server schannel require seal[:COMPUTERACCOUNT]" options

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 s4:rpc_server/netlogon: make sure all dcesrv_netr_LogonSamLogon*() calls go through dcesrv_netr_check_schannel()

We'll soon add some additional contraints in dcesrv_netr_check_schannel(),
which are also required for dcesrv_netr_LogonSamLogonEx().

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 s4:rpc_server/netlogon: split out dcesrv_netr_check_schannel() function

This will allow us to reuse the function in other places.
As it will also get some additional checks soon.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 selftest:Samba4: avoid global 'allow nt4 crypto = yes' and 'reject md5 clients = no'

Instead of using the generic deprecated option use the specific
allow nt4 crypto:COMPUTERACCOUNT = yes and
server reject md5 schannel:COMPUTERACCOUNT = no
in order to allow legacy tests for pass.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 s4:rpc_server/netlogon: debug 'reject md5 servers' and 'allow nt4 crypto' misconfigurations

This allows the admin to notice what's wrong in order to adjust the
configuration if required.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 docs-xml/smbdotconf: document "server reject md5 schannel:COMPUTERACCOUNT"

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 docs-xml/smbdotconf: document "allow nt4 crypto:COMPUTERACCOUNT = no"

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 s4:rpc_server/netlogon: add 'server reject md5 schannel:COMPUTERACCOUNT = no' and 'allow nt4 crypto:COMPUTERACCOUNT = yes'

This makes it more flexible when we change the global default to
'reject md5 servers = yes'.

'allow nt4 crypto = no' is already the default.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 s4:rpc_server/netlogon: defer downgrade check until we found the account in our SAM

We'll soon make it possible to use 'reject md5 servers:CLIENTACCOUNT$ = no',
which means we'll need use the account name from our SAM.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 docs-xml/smbdotconf: change 'reject md5 clients' default to yes

AES is supported by Windows Server >= 2008R2, Windows (Client) >= 7 and Samba >= 4.0,
so there's no reason to allow md5 clients by default.
However some third party domain members may need it.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 s4:rpc_server/netlogon: require aes if weak crypto is disabled

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 s4:rpc_server/netlogon: split out dcesrv_netr_ServerAuthenticate3_check_downgrade()

We'll soon make it possible to use 'reject md5 servers:CLIENTACCOUNT$ = no',
which means we'll need the downgrade detection in more places.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 s4:torture: use NETLOGON_NEG_SUPPORTS_AES by default

For generic tests we should use the best available features.

And AES will be required by default soon.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 selftest:Samba4: avoid global 'server schannel = auto'

Instead of using the generic deprecated option use the specific
server require schannel:COMPUTERACCOUNT = no in order to allow
legacy tests for pass.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 s4:rpc_server/netlogon: improve CVE-2020-1472(ZeroLogon) debug messages

In order to avoid generating useless debug messages during make test,
we will use 'CVE_2020_1472:warn_about_unused_debug_level = 3'
and 'CVE_2020_1472:error_debug_level = 2' in order to avoid schannel warnings.

Review with: git show -w

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 s4:rpc_server/netlogon: re-order checking in dcesrv_netr_creds_server_step_check()

This will simplify the following changes.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 s4:rpc_server/netlogon: add talloc_stackframe() to dcesrv_netr_creds_server_step_check()

This will simplify the following changes.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 s4:rpc_server/netlogon: add a lp_ctx variable to dcesrv_netr_creds_server_step_check()

This will simplify the following changes.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 s4:rpc_server/netlogon: 'server schannel != yes' warning to dcesrv_interface_netlogon_bind

This will simplify the following changes.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 docs-xml/smbdotconf: change 'reject md5 servers' default to yes

AES is supported by Windows >= 2008R2 and Samba >= 4.0 so there's no
reason to allow md5 servers by default.

Note the change in netlogon_creds_cli_context_global() is only cosmetic,
but avoids confusion while reading the code. Check with:

 git show -U35 libcli/auth/netlogon_creds_cli.c

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 s3:winbindd: also allow per domain "winbind sealed pipes:DOMAIN" and "require strong key:DOMAIN"

This avoids advising insecure defaults for the global options.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 s3:net: add and use net_warn_member_options() helper

This makes sure domain member related 'net' commands print warnings
about unsecure smb.conf options.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 libcli/auth: add/use netlogon_creds_cli_warn_options()

This warns the admin about insecure options

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 libcli/auth: pass lp_ctx to netlogon_creds_cli_set_global_db()

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

CVE-2022-38023 docs-xml: improve wording for several options: "yields precedence" -> "is over-riden"

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

CVE-2022-38023 docs-xml: improve wording for several options: "takes precedence" -> "overrides"

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15240

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

selftest: make filter-subunit much more efficient for large knownfail lists

By compiling the knownfail lists ahead of time we change a 20min test
into a 90sec test.

This could be improved further by combining this into a single regular expression,
but this is enough for now.  The 'reason' is thankfully not used.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15258

Pair-programmed-with: Joseph Sutton <josephsutton@catalyst.net.nz>

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

s4/torture/smb2: avoid possibly closing undefined handle

From OSS-Fuzz compilation:

Step #3 - "compile-honggfuzz-address-x86_64": ../../source4/torture/smb2/dir.c:1456:2: error: variable 'dir_handle' is used uninitialized whenever 'if' condition is true [-Werror,-Wsometimes-uninitialized]
Step #3 - "compile-honggfuzz-address-x86_64":         torture_assert_ntstatus_ok_goto(tctx, status, ret, done,
Step #3 - "compile-honggfuzz-address-x86_64":         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Step #3 - "compile-honggfuzz-address-x86_64": ../../lib/torture/torture.h:748:3: note: expanded from macro 'torture_assert_ntstatus_ok_goto'
Step #3 - "compile-honggfuzz-address-x86_64":                 torture_assert_ntstatus_equal_goto(torture_ctx,expr,NT_STATUS_OK,ret,label,cmt)
Step #3 - "compile-honggfuzz-address-x86_64":                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Step #3 - "compile-honggfuzz-address-x86_64": ../../lib/torture/torture.h:316:6: note: expanded from macro 'torture_assert_ntstatus_equal_goto'
Step #3 - "compile-honggfuzz-address-x86_64":         if (!NT_STATUS_EQUAL(__got, __expected)) { \
Step #3 - "compile-honggfuzz-address-x86_64":             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Step #3 - "compile-honggfuzz-address-x86_64": ../../source4/torture/smb2/dir.c:1582:24: note: uninitialized use occurs here
Step #3 - "compile-honggfuzz-address-x86_64":         smb2_util_close(tree, dir_handle);
Step #3 - "compile-honggfuzz-address-x86_64":                               ^~~~~~~~~~
Step #3 - "compile-honggfuzz-address-x86_64": ../../source4/torture/smb2/dir.c:1456:2: note: remove the 'if' if its condition is always false
Step #3 - "compile-honggfuzz-address-x86_64":         torture_assert_ntstatus_ok_goto(tctx, status, ret, done,
Step #3 - "compile-honggfuzz-address-x86_64":         ^
Step #3 - "compile-honggfuzz-address-x86_64": ../../lib/torture/torture.h:748:3: note: expanded from macro 'torture_assert_ntstatus_ok_goto'
Step #3 - "compile-honggfuzz-address-x86_64":                 torture_assert_ntstatus_equal_goto(torture_ctx,expr,NT_STATUS_OK,ret,label,cmt)
Step #3 - "compile-honggfuzz-address-x86_64":                 ^
Step #3 - "compile-honggfuzz-address-x86_64": ../../lib/torture/torture.h:316:2: note: expanded from macro 'torture_assert_ntstatus_equal_goto'
Step #3 - "compile-honggfuzz-address-x86_64":         if (!NT_STATUS_EQUAL(__got, __expected)) { \
Step #3 - "compile-honggfuzz-address-x86_64":         ^
Step #3 - "compile-honggfuzz-address-x86_64": ../../source4/torture/smb2/dir.c:1434:2: note: variable 'dir_handle' is declared here
Step #3 - "compile-honggfuzz-address-x86_64":         struct smb2_handle dir_handle;
Step #3 - "compile-honggfuzz-address-x86_64":         ^

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Tue Dec 13 07:45:20 UTC 2022 on sn-devel-184

smbd: Remove a few "extern userdom_struct current_user_info"

get_current_username() returns current_user_info.smb_name

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Mon Dec 12 22:14:20 UTC 2022 on sn-devel-184

lib: Add get_current_user_info_domain()

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

lib: Make substitute.c's "remote_proto" static

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

vfs: Remove an unnecessary if statement

get_local_machine_name() already does exactly this

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

lib: Remove unused octal_string()

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

lib: Remove fstring_sub() that was used just once

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

smbd: Simplify dos_mode_msdfs()

Use ISDOT[DOT]

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

cldap_server: Align integer types

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

smbd: Simplify is_visible_fsp()

We don't need the wrapping if-statement, we check for the individual
flags. The compiler should be smart enough so that this is not a
difference in execution speed.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

tsocket: Fix the build on FreeBSD

FreeBSD does not have TCP_USER_TIMEOUT

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

nsswitch: Align integer types

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

smbd: Fix whitespace

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

torture: test that a find with a mangled name works

This was spawned by https://bugzilla.samba.org/show_bug.cgi?id=13472 back
then. Samba implement this correctly, just add this test found in the attic.

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat Dec 10 00:07:09 UTC 2022 on sn-devel-184

torture: convert mangling test to a suite

More tests to come...

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

torture: add an interactive test that works out maximum name and path lenghts

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

smbd: remove oplock paranoia check from file_find_dif()

Since 4.16 stat opens will have a real fd, the only case where currently the fd
can still be -1 is a POSIX request on a symlink.

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

torture: add a test veryfing timestamps across rename

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

lib/torture: fix tctx arg usage in torture_assert_nttime_equal() macro

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

torture: add another large directory enumeration performance test

This one renames one file per iteration and can also be used to torture any
directory caching the server may employ.

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

torture: print duration of smb2.dir.test_large_files

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

torture: increase find buffer to 1 MB in multiple_smb2_search()

This is used by performance tests that don't want to measure network latency but
fileserver IO latency.

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

torture: add another simple DOS attributes test

- create file with ARCHIVE
- open file with ARCHIVE+HIDDEN+...
- check DOS attrs are still only ARCHIVE from the initial create

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

s4:torture: remove remaining checks if alloc_size is 0 on empty files

commit 55b2f247f9ba56516efba52481418966a777343e already remove a few of these,
but a few remained.

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

vfs_zfsacl: fix mixed declaration and code error

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

vfs_zfsacl: remove unused function

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

lib/cmdline/tests: add missing includes

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

s3:locking: split out del_share_mode_open_id()

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

smbd: introduce 'delete_on_close' helper variables

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

g_lock: check for zero timeout in g_lock_lock()

If the record is already locked check if the requested timeout is zero
and fail directly with NT_STATUS_LOCK_NOT_GRANTED.

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

smbd: debug in smbd_smb2_close_send()

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

s3/locking: Revert "s3:locking: Remove dead code"

This reverts commit de493a3e3b5b8d54f62c45072e27f2fefd4af43a:

    s3:locking: Remove dead code

    Found by Coverity.

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Isaac Boukris <iboukris@samba.org>
dbwrap_do_locked() correctly returns saved_errno which is a possible
errno returned by close() inside fd_close_posix_fn().

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>