def cleanup_old_join(ctx):
'''remove any DNs from a previous join'''
try:
# find the krbtgt link
print("checking samaccountname")
if ctx.subdomain:
res = None
else:
res = ctx.samdb.search(base=ctx.samdb.get_default_basedn(),
expression='samAccountName=%s' %
ldb.binary_encode(ctx.samname),
attrs=["msDS-krbTgtLink"])
if res:
ctx.del_noerror(res[0].dn, recursive=True)
if ctx.connection_dn is not None:
ctx.del_noerror(ctx.connection_dn)
if ctx.krbtgt_dn is not None:
ctx.del_noerror(ctx.krbtgt_dn)
ctx.del_noerror(ctx.ntds_dn)
ctx.del_noerror(ctx.server_dn, recursive=True)
if ctx.topology_dn:
ctx.del_noerror(ctx.topology_dn)
if ctx.partition_dn:
ctx.del_noerror(ctx.partition_dn)
if res:
ctx.new_krbtgt_dn = res[0]["msDS-Krbtgtlink"][0]
ctx.del_noerror(ctx.new_krbtgt_dn)
if ctx.subdomain:
binding_options = "sign"
lsaconn = lsa.lsarpc(
"ncacn_ip_tcp:%s[%s]" % (ctx.server, binding_options),
ctx.lp, ctx.creds)
objectAttr = lsa.ObjectAttribute()
objectAttr.sec_qos = lsa.QosInfo()
pol_handle = lsaconn.OpenPolicy2(
''.decode('utf-8'), objectAttr,
security.SEC_FLAG_MAXIMUM_ALLOWED)
name = lsa.String()
name.string = ctx.realm
info = lsaconn.QueryTrustedDomainInfoByName(
pol_handle, name, lsa.LSA_TRUSTED_DOMAIN_INFO_FULL_INFO)
lsaconn.DeleteTrustedDomain(pol_handle, info.info_ex.sid)
name = lsa.String()
name.string = ctx.forest_domain_name
info = lsaconn.QueryTrustedDomainInfoByName(
pol_handle, name, lsa.LSA_TRUSTED_DOMAIN_INFO_FULL_INFO)
lsaconn.DeleteTrustedDomain(pol_handle, info.info_ex.sid)
except Exception:
pass
def retrieve(self, remote_host):
self.__init_lsa_pipe(remote_host)
objectAttribute = lsa.ObjectAttribute()
objectAttribute.sec_qos = lsa.QosInfo()
try:
self._policy_handle = self._pipe.OpenPolicy2(
u"", objectAttribute, security.SEC_FLAG_MAXIMUM_ALLOWED)
result = self._pipe.QueryInfoPolicy2(self._policy_handle,
lsa.LSA_POLICY_INFO_DNS)
except RuntimeError, (num, message):
raise assess_dcerpc_exception(num=num, message=message)
def packet_lsarpc_14(packet, conversation, context):
# lsa_LookupNames
c = context.get_lsarpc_named_pipe_connection()
objectAttr = lsa.ObjectAttribute()
pol_handle = c.OpenPolicy2(u'', objectAttr,
security.SEC_FLAG_MAXIMUM_ALLOWED)
sids = lsa.TransSidArray()
names = [lsa.String("This Organization"),
lsa.String("Digest Authentication")]
level = lsa.LSA_LOOKUP_NAMES_ALL
count = 0
c.LookupNames(pol_handle, names, sids, level, count)
return True
def test_smb3_dcerpc_encryption(self):
creds = self.get_user_creds()
creds.set_smb_encryption(SMB_ENCRYPTION_REQUIRED)
lp = self.get_loadparm()
lp.set('client ipc max protocol', 'SMB3')
lp.set('client ipc min protocol', 'SMB3')
binding_string = ("ncacn_np:%s" % (samba.tests.env_get_var_value('SERVER')))
lsa_conn = lsa.lsarpc(binding_string, lp, creds)
objectAttr = lsa.ObjectAttribute()
objectAttr.sec_qos = lsa.QosInfo()
pol_handle = lsa_conn.OpenPolicy2('',
objectAttr,
security.SEC_FLAG_MAXIMUM_ALLOWED)
self.assertIsNotNone(pol_handle)
def packet_lsarpc_39(packet, conversation, context):
# lsa_QueryTrustedDomainInfoBySid
# Samba does not support trusted domains, so this call is expected to fail
#
c = context.get_lsarpc_named_pipe_connection()
objectAttr = lsa.ObjectAttribute()
pol_handle = c.OpenPolicy2(u'', objectAttr,
security.SEC_FLAG_MAXIMUM_ALLOWED)
domsid = security.dom_sid(context.domain_sid)
level = 1
try:
c.QueryTrustedDomainInfoBySid(pol_handle, domsid, level)
except NTSTATUSError as error:
# Object Not found is the expected result, anything else is a
# failure.
if not check_runtime_error(error, NT_STATUS_OBJECT_NAME_NOT_FOUND):
raise
return True
def packet_lsarpc_15(packet, conversation, context):
# lsa_LookupSids
c = context.get_lsarpc_named_pipe_connection()
objectAttr = lsa.ObjectAttribute()
pol_handle = c.OpenPolicy2(u'', objectAttr,
security.SEC_FLAG_MAXIMUM_ALLOWED)
sids = lsa.SidArray()
sid = lsa.SidPtr()
x = dom_sid("S-1-5-7")
sid.sid = x
sids.sids = [sid]
sids.num_sids = 1
names = lsa.TransNameArray()
level = 5
count = 0
c.LookupSids(pol_handle, sids, names, level, count)
return True
def test_create_and_delete_secret_over_lsa(self):
dn = "cn=Test Secret,CN=System," + self.base_dn
self.discardSetupMessages(dn)
creds = self.insta_creds(template=self.get_credentials())
lsa_conn = lsa.lsarpc("ncacn_np:%s" % self.server, self.get_loadparm(),
creds)
lsa_handle = lsa_conn.OpenPolicy2(
system_name="\\",
attr=lsa.ObjectAttribute(),
access_mask=security.SEC_FLAG_MAXIMUM_ALLOWED)
secret_name = lsa.String()
secret_name.string = "G$Test"
lsa_conn.CreateSecret(handle=lsa_handle,
name=secret_name,
access_mask=security.SEC_FLAG_MAXIMUM_ALLOWED)
messages = self.waitForMessages(1, dn=dn)
print("Received %d messages" % len(messages))
self.assertEquals(1, len(messages),
"Did not receive the expected number of messages")
audit = messages[0]["dsdbChange"]
self.assertEquals("Add", audit["operation"])
self.assertTrue(audit["performedAsSystem"])
self.assertTrue(dn.lower(), audit["dn"].lower())
self.assertRegexpMatches(audit["remoteAddress"], self.remoteAddress)
self.assertTrue(self.is_guid(audit["sessionId"]))
session_id = self.get_session()
self.assertEquals(session_id, audit["sessionId"])
# We skip the check for self.get_service_description() as this
# is subject to a race between smbd and the s4 rpc_server code
# as to which will set the description as it is DCE/RPC over SMB
attributes = audit["attributes"]
self.assertEquals(2, len(attributes))
object_class = attributes["objectClass"]
self.assertEquals(1, len(object_class["actions"]))
action = object_class["actions"][0]
self.assertEquals("add", action["action"])
values = action["values"]
self.assertEquals(1, len(values))
self.assertEquals("secret", values[0]["value"])
cn = attributes["cn"]
self.assertEquals(1, len(cn["actions"]))
action = cn["actions"][0]
self.assertEquals("add", action["action"])
values = action["values"]
self.assertEquals(1, len(values))
self.assertEquals("Test Secret", values[0]["value"])
#
# Now delete the secret.
self.discardMessages()
h = lsa_conn.OpenSecret(handle=lsa_handle,
name=secret_name,
access_mask=security.SEC_FLAG_MAXIMUM_ALLOWED)
lsa_conn.DeleteObject(h)
messages = self.waitForMessages(1, dn=dn)
print("Received %d messages" % len(messages))
self.assertEquals(1, len(messages),
"Did not receive the expected number of messages")
dn = "cn=Test Secret,CN=System," + self.base_dn
audit = messages[0]["dsdbChange"]
self.assertEquals("Delete", audit["operation"])
self.assertTrue(audit["performedAsSystem"])
self.assertTrue(dn.lower(), audit["dn"].lower())
self.assertRegexpMatches(audit["remoteAddress"], self.remoteAddress)
self.assertTrue(self.is_guid(audit["sessionId"]))
session_id = self.get_session()
self.assertEquals(session_id, audit["sessionId"])
def _create_trust_relax(self, smbencrypt=True):
creds = self.get_user_creds()
if smbencrypt:
creds.set_smb_encryption(SMB_ENCRYPTION_REQUIRED)
else:
creds.set_smb_encryption(SMB_ENCRYPTION_OFF)
lp = self.get_loadparm()
binding_string = ("ncacn_np:%s" %
(samba.tests.env_get_var_value('SERVER')))
lsa_conn = lsa.lsarpc(binding_string, lp, creds)
if smbencrypt:
self.assertTrue(lsa_conn.transport_encrypted())
else:
self.assertFalse(lsa_conn.transport_encrypted())
objectAttr = lsa.ObjectAttribute()
objectAttr.sec_qos = lsa.QosInfo()
pol_handle = lsa_conn.OpenPolicy2('', objectAttr,
security.SEC_FLAG_MAXIMUM_ALLOWED)
self.assertIsNotNone(pol_handle)
name = lsa.String()
name.string = "tests.samba.example.com"
try:
info = lsa_conn.QueryTrustedDomainInfoByName(
pol_handle, name, lsa.LSA_TRUSTED_DOMAIN_INFO_FULL_INFO)
lsa_conn.DeleteTrustedDomain(pol_handle, info.info_ex.sid)
except RuntimeError:
pass
info = lsa.TrustDomainInfoInfoEx()
info.domain_name.string = name.string
info.netbios_name.string = "createtrustrelax"
info.sid = security.dom_sid("S-1-5-21-538490383-3740119673-95748416")
info.trust_direction = lsa.LSA_TRUST_DIRECTION_INBOUND | lsa.LSA_TRUST_DIRECTION_OUTBOUND
info.trust_type = lsa.LSA_TRUST_TYPE_UPLEVEL
info.trust_attributes = lsa.LSA_TRUST_ATTRIBUTE_FOREST_TRANSITIVE
password_blob = samba.string_to_byte_array(
"password".encode('utf-16-le'))
clear_value = drsblobs.AuthInfoClear()
clear_value.size = len(password_blob)
clear_value.password = password_blob
clear_authentication_information = drsblobs.AuthenticationInformation()
clear_authentication_information.LastUpdateTime = 0
clear_authentication_information.AuthType = lsa.TRUST_AUTH_TYPE_CLEAR
clear_authentication_information.AuthInfo = clear_value
authentication_information_array = drsblobs.AuthenticationInformationArray(
)
authentication_information_array.count = 1
authentication_information_array.array = [
clear_authentication_information
]
outgoing = drsblobs.trustAuthInOutBlob()
outgoing.count = 1
outgoing.current = authentication_information_array
trustdom_handle = None
try:
trustdom_handle = CreateTrustedDomainRelax(lsa_conn, pol_handle,
info,
security.SEC_STD_DELETE,
outgoing, outgoing)
except samba.NTSTATUSError as nt:
raise AssertionError(nt)
except OSError as e:
if smbencrypt:
raise AssertionError(e)
if smbencrypt:
self.assertIsNotNone(trustdom_handle)
lsa_conn.DeleteTrustedDomain(pol_handle, info.sid)
else:
self.assertIsNone(trustdom_handle)
def join_setup_trusts(ctx):
'''provision the local SAM'''
def arcfour_encrypt(key, data):
from Crypto.Cipher import ARC4
c = ARC4.new(key)
return c.encrypt(data)
def string_to_array(string):
blob = [0] * len(string)
for i in range(len(string)):
blob[i] = ord(string[i])
return blob
print "Setup domain trusts with server %s" % ctx.server
binding_options = "" # why doesn't signing work here? w2k8r2 claims no session key
lsaconn = lsa.lsarpc("ncacn_np:%s[%s]" % (ctx.server, binding_options),
ctx.lp, ctx.creds)
objectAttr = lsa.ObjectAttribute()
objectAttr.sec_qos = lsa.QosInfo()
pol_handle = lsaconn.OpenPolicy2(''.decode('utf-8'), objectAttr,
security.SEC_FLAG_MAXIMUM_ALLOWED)
info = lsa.TrustDomainInfoInfoEx()
info.domain_name.string = ctx.dnsdomain
info.netbios_name.string = ctx.domain_name
info.sid = security.dom_sid(ctx.domsid)
info.trust_direction = lsa.LSA_TRUST_DIRECTION_INBOUND | lsa.LSA_TRUST_DIRECTION_OUTBOUND
info.trust_type = lsa.LSA_TRUST_TYPE_UPLEVEL
info.trust_attributes = lsa.LSA_TRUST_ATTRIBUTE_WITHIN_FOREST
try:
oldname = lsa.String()
oldname.string = ctx.dnsdomain
oldinfo = lsaconn.QueryTrustedDomainInfoByName(
pol_handle, oldname, lsa.LSA_TRUSTED_DOMAIN_INFO_FULL_INFO)
print("Removing old trust record for %s (SID %s)" %
(ctx.dnsdomain, oldinfo.info_ex.sid))
lsaconn.DeleteTrustedDomain(pol_handle, oldinfo.info_ex.sid)
except RuntimeError:
pass
password_blob = string_to_array(ctx.trustdom_pass.encode('utf-16-le'))
clear_value = drsblobs.AuthInfoClear()
clear_value.size = len(password_blob)
clear_value.password = password_blob
clear_authentication_information = drsblobs.AuthenticationInformation()
clear_authentication_information.LastUpdateTime = samba.unix2nttime(
int(time.time()))
clear_authentication_information.AuthType = lsa.TRUST_AUTH_TYPE_CLEAR
clear_authentication_information.AuthInfo = clear_value
authentication_information_array = drsblobs.AuthenticationInformationArray(
)
authentication_information_array.count = 1
authentication_information_array.array = [
clear_authentication_information
]
outgoing = drsblobs.trustAuthInOutBlob()
outgoing.count = 1
outgoing.current = authentication_information_array
trustpass = drsblobs.trustDomainPasswords()
confounder = [3] * 512
for i in range(512):
confounder[i] = random.randint(0, 255)
trustpass.confounder = confounder
trustpass.outgoing = outgoing
trustpass.incoming = outgoing
trustpass_blob = ndr_pack(trustpass)
encrypted_trustpass = arcfour_encrypt(lsaconn.session_key,
trustpass_blob)
auth_blob = lsa.DATA_BUF2()
auth_blob.size = len(encrypted_trustpass)
auth_blob.data = string_to_array(encrypted_trustpass)
auth_info = lsa.TrustDomainInfoAuthInfoInternal()
auth_info.auth_blob = auth_blob
trustdom_handle = lsaconn.CreateTrustedDomainEx2(
pol_handle, info, auth_info, security.SEC_STD_DELETE)
rec = {
"dn": "cn=%s,cn=system,%s" % (ctx.dnsforest, ctx.base_dn),
"objectclass": "trustedDomain",
"trustType": str(info.trust_type),
"trustAttributes": str(info.trust_attributes),
"trustDirection": str(info.trust_direction),
"flatname": ctx.forest_domain_name,
"trustPartner": ctx.dnsforest,
"trustAuthIncoming": ndr_pack(outgoing),
"trustAuthOutgoing": ndr_pack(outgoing)
}
ctx.local_samdb.add(rec)
rec = {
"dn": "cn=%s$,cn=users,%s" % (ctx.forest_domain_name, ctx.base_dn),
"objectclass": "user",
"userAccountControl": str(samba.dsdb.UF_INTERDOMAIN_TRUST_ACCOUNT),
"clearTextPassword": ctx.trustdom_pass.encode('utf-16-le')
}
ctx.local_samdb.add(rec)
