clean up rdp module
Marshall Hallenbeck
parent
a460565cd8
commit
a730ed0f22
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@ -16,7 +16,7 @@ from impacket.dcerpc.v5.rpcrt import RPC_C_AUTHN_LEVEL_PKT_PRIVACY
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class NXCModule:
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name = "rdp"
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description = "Enables/Disables RDP"
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supported_protocols = ["smb" ,"wmi"]
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supported_protocols = ["smb", "wmi"]
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opsec_safe = True
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multiple_hosts = True
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@ -73,23 +73,23 @@ class NXCModule:
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if self.method == "smb":
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context.log.info("Executing over SMB(ncacn_np)")
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try:
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smb_rdp = rdp_SMB(context, connection)
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smb_rdp = RdpSmb(context, connection)
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if "ram" in self.action:
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smb_rdp.rdp_RAMWrapper(self.action)
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smb_rdp.rdp_ram_wrapper(self.action)
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else:
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smb_rdp.rdp_Wrapper(self.action)
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smb_rdp.rdp_wrapper(self.action)
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except Exception as e:
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context.log.fail(f"Enable RDP via smb error: {str(e)}")
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elif self.method == "wmi":
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context.log.info("Executing over WMI(ncacn_ip_tcp)")
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wmi_rdp = rdp_WMI(context, connection, self.dcom_timeout)
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wmi_rdp = RdpWmi(context, connection, self.dcom_timeout)
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if hasattr(wmi_rdp, '_rdp_WMI__iWbemLevel1Login'):
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if "ram" in self.action:
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# Nt version under 6 not support RAM.
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try:
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wmi_rdp.rdp_RAMWrapper(self.action)
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wmi_rdp.rdp_ram_wrapper(self.action)
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except Exception as e:
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if "WBEM_E_NOT_FOUND" in str(e):
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context.log.fail("System version under NT6 not support restricted admin mode")
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@ -98,7 +98,7 @@ class NXCModule:
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pass
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else:
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try:
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wmi_rdp.rdp_Wrapper(self.action, self.oldSystem)
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wmi_rdp.rdp_wrapper(self.action, self.oldSystem)
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except Exception as e:
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if "WBEM_E_INVALID_NAMESPACE" in str(e):
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context.log.fail('Looks like target system version is under NT6, please add "OLD=true" in module options.')
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@ -107,76 +107,77 @@ class NXCModule:
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pass
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wmi_rdp._rdp_WMI__dcom.disconnect()
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class rdp_SMB:
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class RdpSmb:
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def __init__(self, context, connection):
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self.context = context
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self.__smbconnection = connection.conn
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self.__execute = connection.execute
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self.logger = context.log
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def rdp_Wrapper(self, action):
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remoteOps = RemoteOperations(self.__smbconnection, False)
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remoteOps.enableRegistry()
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def rdp_wrapper(self, action):
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remote_ops = RemoteOperations(self.__smbconnection, False)
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remote_ops.enableRegistry()
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if remoteOps._RemoteOperations__rrp:
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ans = rrp.hOpenLocalMachine(remoteOps._RemoteOperations__rrp)
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if remote_ops._RemoteOperations__rrp:
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ans = rrp.hOpenLocalMachine(remote_ops._RemoteOperations__rrp)
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regHandle = ans["phKey"]
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ans = rrp.hBaseRegOpenKey(
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remoteOps._RemoteOperations__rrp,
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remote_ops._RemoteOperations__rrp,
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regHandle,
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"SYSTEM\\CurrentControlSet\\Control\\Terminal Server",
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)
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keyHandle = ans["phkResult"]
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key_handle = ans["phkResult"]
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ans = rrp.hBaseRegSetValue(
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remoteOps._RemoteOperations__rrp,
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keyHandle,
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remote_ops._RemoteOperations__rrp,
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key_handle,
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"fDenyTSConnections",
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rrp.REG_DWORD,
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0 if action == "enable" else 1,
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)
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rtype, data = rrp.hBaseRegQueryValue(remoteOps._RemoteOperations__rrp, keyHandle, "fDenyTSConnections")
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rtype, data = rrp.hBaseRegQueryValue(remote_ops._RemoteOperations__rrp, key_handle, "fDenyTSConnections")
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if int(data) == 0:
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self.logger.success("Enable RDP via SMB(ncacn_np) successfully")
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elif int(data) == 1:
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self.logger.success("Disable RDP via SMB(ncacn_np) successfully")
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self.firewall_CMD(action)
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self.firewall_cmd(action)
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if action == "enable":
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self.query_RDPPort(remoteOps, regHandle)
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self.query_rdp_port(remote_ops, regHandle)
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try:
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remoteOps.finish()
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except:
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remote_ops.finish()
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except Exception:
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pass
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def rdp_RAMWrapper(self, action):
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remoteOps = RemoteOperations(self.__smbconnection, False)
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remoteOps.enableRegistry()
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def rdp_ram_wrapper(self, action):
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remote_ops = RemoteOperations(self.__smbconnection, False)
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remote_ops.enableRegistry()
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if remoteOps._RemoteOperations__rrp:
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ans = rrp.hOpenLocalMachine(remoteOps._RemoteOperations__rrp)
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regHandle = ans["phKey"]
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if remote_ops._RemoteOperations__rrp:
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ans = rrp.hOpenLocalMachine(remote_ops._RemoteOperations__rrp)
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reg_handle = ans["phKey"]
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ans = rrp.hBaseRegOpenKey(
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remoteOps._RemoteOperations__rrp,
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regHandle,
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remote_ops._RemoteOperations__rrp,
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reg_handle,
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"System\\CurrentControlSet\\Control\\Lsa",
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)
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keyHandle = ans["phkResult"]
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key_handle = ans["phkResult"]
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rrp.hBaseRegSetValue(
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remoteOps._RemoteOperations__rrp,
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keyHandle,
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remote_ops._RemoteOperations__rrp,
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key_handle,
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"DisableRestrictedAdmin",
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rrp.REG_DWORD,
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0 if action == "enable-ram" else 1,
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)
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rtype, data = rrp.hBaseRegQueryValue(remoteOps._RemoteOperations__rrp, keyHandle, "DisableRestrictedAdmin")
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rtype, data = rrp.hBaseRegQueryValue(remote_ops._RemoteOperations__rrp, key_handle, "DisableRestrictedAdmin")
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if int(data) == 0:
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self.logger.success("Enable RDP Restricted Admin Mode via SMB(ncacn_np) succeed")
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@ -184,25 +185,25 @@ class rdp_SMB:
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self.logger.success("Disable RDP Restricted Admin Mode via SMB(ncacn_np) succeed")
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try:
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remoteOps.finish()
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except:
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remote_ops.finish()
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except Exception:
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pass
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def query_RDPPort(self, remoteOps, regHandle):
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def query_rdp_port(self, remoteOps, regHandle):
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if remoteOps:
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ans = rrp.hBaseRegOpenKey(
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remoteOps._RemoteOperations__rrp,
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regHandle,
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"SYSTEM\\CurrentControlSet\\Control\\Terminal Server\\WinStations\\RDP-Tcp",
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)
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keyHandle = ans["phkResult"]
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key_handle = ans["phkResult"]
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rtype, data = rrp.hBaseRegQueryValue(remoteOps._RemoteOperations__rrp, keyHandle, "PortNumber")
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rtype, data = rrp.hBaseRegQueryValue(remoteOps._RemoteOperations__rrp, key_handle, "PortNumber")
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self.logger.success(f"RDP Port: {str(data)}")
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# https://github.com/rapid7/metasploit-framework/blob/master/modules/post/windows/manage/enable_rdp.rb
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def firewall_CMD(self, action):
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def firewall_cmd(self, action):
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cmd = f"netsh firewall set service type = remotedesktop mode = {action}"
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self.logger.info("Configure firewall via execute command.")
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output = self.__execute(cmd, True)
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@ -211,7 +212,8 @@ class rdp_SMB:
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else:
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self.logger.fail(f"{action.capitalize()} RDP firewall rules via cmd failed, maybe got detected by AV software.")
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class rdp_WMI:
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class RdpWmi:
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def __init__(self, context, connection, timeout):
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self.logger = context.log
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self.__currentprotocol = context.protocol
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@ -241,9 +243,9 @@ class rdp_WMI:
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kdcHost=self.__kdcHost,
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)
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iInterface = self.__dcom.CoCreateInstanceEx(wmi.CLSID_WbemLevel1Login, wmi.IID_IWbemLevel1Login)
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i_interface = self.__dcom.CoCreateInstanceEx(wmi.CLSID_WbemLevel1Login, wmi.IID_IWbemLevel1Login)
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if self.__currentprotocol == "smb":
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flag, self.__stringBinding = dcom_FirewallChecker(iInterface, self.__timeout)
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flag, self.__stringBinding = dcom_FirewallChecker(i_interface, self.__timeout)
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if not flag or not self.__stringBinding:
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error_msg = f'RDP-WMI: Dcom initialization failed on connection with stringbinding: "{self.__stringBinding}", please increase the timeout with the module option "DCOM-TIMEOUT=10". If it\'s still failing maybe something is blocking the RPC connection, please try to use "-o" with "METHOD=smb"'
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@ -253,90 +255,98 @@ class rdp_WMI:
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self.logger.fail(error_msg) if not flag else self.logger.debug(error_msg)
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# Make it force break function
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self.__dcom.disconnect()
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self.__iWbemLevel1Login = wmi.IWbemLevel1Login(iInterface)
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self.__iWbemLevel1Login = wmi.IWbemLevel1Login(i_interface)
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except Exception as e:
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self.logger.fail(f'Unexpected wmi error: {str(e)}, please try to use "-o" with "METHOD=smb"')
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self.logger.fail(f'Unexpected wmi error: {e}, please try to use "-o" with "METHOD=smb"')
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if self.__iWbemLevel1Login in locals():
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self.__dcom.disconnect()
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def rdp_Wrapper(self, action, old=False):
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def rdp_wrapper(self, action, old=False):
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if old is False:
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# According to this document: https://learn.microsoft.com/en-us/windows/win32/termserv/win32-tslogonsetting
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# Authentication level must set to RPC_C_AUTHN_LEVEL_PKT_PRIVACY when accessing namespace "//./root/cimv2/TerminalServices"
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iWbemServices = self.__iWbemLevel1Login.NTLMLogin('//./root/cimv2/TerminalServices', NULL, NULL)
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iWbemServices.get_dce_rpc().set_auth_level(RPC_C_AUTHN_LEVEL_PKT_PRIVACY)
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i_wbem_services = self.__iWbemLevel1Login.NTLMLogin(
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"//./root/cimv2/TerminalServices",
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NULL,
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NULL
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)
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i_wbem_services.get_dce_rpc().set_auth_level(RPC_C_AUTHN_LEVEL_PKT_PRIVACY)
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self.__iWbemLevel1Login.RemRelease()
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iEnumWbemClassObject = iWbemServices.ExecQuery("SELECT * FROM Win32_TerminalServiceSetting")
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iWbemClassObject = iEnumWbemClassObject.Next(0xffffffff,1)[0]
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if action == 'enable':
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i_enum_wbem_class_object = i_wbem_services.ExecQuery("SELECT * FROM Win32_TerminalServiceSetting")
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i_wbem_class_object = i_enum_wbem_class_object.Next(0xffffffff, 1)[0]
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if action == "enable":
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self.logger.info("Enabled RDP services and setting up firewall.")
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iWbemClassObject.SetAllowTSConnections(1,1)
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elif action == 'disable':
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i_wbem_class_object.SetAllowTSConnections(1, 1)
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elif action == "disable":
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self.logger.info("Disabled RDP services and setting up firewall.")
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iWbemClassObject.SetAllowTSConnections(0,0)
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i_wbem_class_object.SetAllowTSConnections(0, 0)
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else:
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iWbemServices = self.__iWbemLevel1Login.NTLMLogin('//./root/cimv2', NULL, NULL)
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i_wbem_services = self.__iWbemLevel1Login.NTLMLogin('//./root/cimv2', NULL, NULL)
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self.__iWbemLevel1Login.RemRelease()
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iEnumWbemClassObject = iWbemServices.ExecQuery("SELECT * FROM Win32_TerminalServiceSetting")
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iWbemClassObject = iEnumWbemClassObject.Next(0xffffffff,1)[0]
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if action == 'enable':
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i_enum_wbem_class_object = i_wbem_services.ExecQuery("SELECT * FROM Win32_TerminalServiceSetting")
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i_wbem_class_object = i_enum_wbem_class_object.Next(0xffffffff, 1)[0]
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if action == "enable":
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self.logger.info("Enabling RDP services (old system not support setting up firewall)")
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iWbemClassObject.SetAllowTSConnections(1)
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elif action == 'disable':
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i_wbem_class_object.SetAllowTSConnections(1)
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elif action == "disable":
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self.logger.info("Disabling RDP services (old system not support setting up firewall)")
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iWbemClassObject.SetAllowTSConnections(0)
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i_wbem_class_object.SetAllowTSConnections(0)
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self.query_RDPResult(old)
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self.query_rdp_result(old)
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if action == 'enable':
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self.query_RDPPort()
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self.query_rdp_port()
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# Need to create new iWbemServices interface in order to flush results
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def query_RDPResult(self, old=False):
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def query_rdp_result(self, old=False):
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if old is False:
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iWbemServices = self.__iWbemLevel1Login.NTLMLogin('//./root/cimv2/TerminalServices', NULL, NULL)
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iWbemServices.get_dce_rpc().set_auth_level(RPC_C_AUTHN_LEVEL_PKT_PRIVACY)
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i_wbem_services = self.__iWbemLevel1Login.NTLMLogin("//./root/cimv2/TerminalServices", NULL, NULL)
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i_wbem_services.get_dce_rpc().set_auth_level(RPC_C_AUTHN_LEVEL_PKT_PRIVACY)
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self.__iWbemLevel1Login.RemRelease()
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iEnumWbemClassObject = iWbemServices.ExecQuery("SELECT * FROM Win32_TerminalServiceSetting")
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iWbemClassObject = iEnumWbemClassObject.Next(0xffffffff,1)[0]
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result = dict(iWbemClassObject.getProperties())
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result = result['AllowTSConnections']['value']
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i_enum_wbem_class_object = i_wbem_services.ExecQuery("SELECT * FROM Win32_TerminalServiceSetting")
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i_wbem_class_object = i_enum_wbem_class_object.Next(0xffffffff, 1)[0]
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result = dict(i_wbem_class_object.getProperties())
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result = result["AllowTSConnections"]["value"]
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if result == 0:
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self.logger.success("Disable RDP via WMI(ncacn_ip_tcp) successfully")
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else:
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self.logger.success("Enable RDP via WMI(ncacn_ip_tcp) successfully")
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else:
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iWbemServices = self.__iWbemLevel1Login.NTLMLogin('//./root/cimv2', NULL, NULL)
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i_wbem_services = self.__iWbemLevel1Login.NTLMLogin("//./root/cimv2", NULL, NULL)
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self.__iWbemLevel1Login.RemRelease()
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iEnumWbemClassObject = iWbemServices.ExecQuery("SELECT * FROM Win32_TerminalServiceSetting")
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iWbemClassObject = iEnumWbemClassObject.Next(0xffffffff,1)[0]
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result = dict(iWbemClassObject.getProperties())
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result = result['AllowTSConnections']['value']
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i_enum_wbem_class_object = i_wbem_services.ExecQuery("SELECT * FROM Win32_TerminalServiceSetting")
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i_wbem_class_object = i_enum_wbem_class_object.Next(0xffffffff, 1)[0]
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result = dict(i_wbem_class_object.getProperties())
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result = result["AllowTSConnections"]["value"]
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if result == 0:
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self.logger.success("Disable RDP via WMI(ncacn_ip_tcp) successfully (old system)")
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else:
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self.logger.success("Enable RDP via WMI(ncacn_ip_tcp) successfully (old system)")
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def query_RDPPort(self):
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iWbemServices = self.__iWbemLevel1Login.NTLMLogin('//./root/DEFAULT', NULL, NULL)
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def query_rdp_port(self):
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i_wbem_services = self.__iWbemLevel1Login.NTLMLogin("//./root/DEFAULT", NULL, NULL)
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self.__iWbemLevel1Login.RemRelease()
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StdRegProv, resp = iWbemServices.GetObject("StdRegProv")
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out = StdRegProv.GetDWORDValue(2147483650, 'SYSTEM\\CurrentControlSet\\Control\\Terminal Server\\WinStations\\RDP-Tcp', 'PortNumber')
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std_reg_prov, resp = i_wbem_services.GetObject("StdRegProv")
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out = std_reg_prov.GetDWORDValue(
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2147483650,
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"SYSTEM\\CurrentControlSet\\Control\\Terminal Server\\WinStations\\RDP-Tcp",
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"PortNumber"
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)
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self.logger.success(f"RDP Port: {str(out.uValue)}")
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# Nt version under 6 not support RAM.
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def rdp_RAMWrapper(self, action):
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iWbemServices = self.__iWbemLevel1Login.NTLMLogin('//./root/cimv2', NULL, NULL)
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def rdp_ram_wrapper(self, action):
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i_wbem_services = self.__iWbemLevel1Login.NTLMLogin("//./root/cimv2", NULL, NULL)
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self.__iWbemLevel1Login.RemRelease()
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StdRegProv, resp = iWbemServices.GetObject("StdRegProv")
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if action == 'enable-ram':
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std_reg_prov, resp = i_wbem_services.GetObject("StdRegProv")
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if action == "enable-ram":
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self.logger.info("Enabling Restricted Admin Mode.")
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StdRegProv.SetDWORDValue(2147483650, 'System\\CurrentControlSet\\Control\\Lsa', 'DisableRestrictedAdmin', 0)
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elif action == 'disable-ram':
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std_reg_prov.SetDWORDValue(2147483650, 'System\\CurrentControlSet\\Control\\Lsa', "DisableRestrictedAdmin", 0)
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elif action == "disable-ram":
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self.logger.info("Disabling Restricted Admin Mode (Clear).")
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StdRegProv.DeleteValue(2147483650, 'System\\CurrentControlSet\\Control\\Lsa', 'DisableRestrictedAdmin')
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out = StdRegProv.GetDWORDValue(2147483650, 'System\\CurrentControlSet\\Control\\Lsa', 'DisableRestrictedAdmin')
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std_reg_prov.DeleteValue(2147483650, "System\\CurrentControlSet\\Control\\Lsa", "DisableRestrictedAdmin")
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out = std_reg_prov.GetDWORDValue(2147483650, "System\\CurrentControlSet\\Control\\Lsa", "DisableRestrictedAdmin")
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if out.uValue == 0:
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self.logger.success("Enable RDP Restricted Admin Mode via WMI(ncacn_ip_tcp) successfully")
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elif out.uValue is None:
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self.logger.success("Disable RDP Restricted Admin Mode via WMI(ncacn_ip_tcp) successfully")
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self.logger.success("Disable RDP Restricted Admin Mode via WMI(ncacn_ip_tcp) successfully")
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