Merge pull request #133 from Shad0wC0ntr0ller/Enum_Trusts

Extract Trust relationships

cme/modules/trust.py

@@ -0,0 +1,88 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+class CMEModule:
+    '''
+        Extract all Trust Relationships, Trusting Direction, and Trust Transitivity
+        Module by Brandon Fisher @shad0wcntr0ller
+    '''
+    name = 'enum_trusts'
+    description = 'Extract all Trust Relationships, Trusting Direction, and Trust Transitivity'
+    supported_protocols = ['ldap']
+    opsec_safe = True
+    multiple_hosts = True
+
+    def options(self, context, module_options):
+        pass
+
+    def on_login(self, context, connection):
+        domain_dn = ','.join(['DC=' + dc for dc in connection.domain.split('.')])
+        search_filter = '(&(objectClass=trustedDomain))'
+        attributes = ['flatName', 'trustPartner', 'trustDirection', 'trustAttributes'] 
+
+        context.log.debug(f'Search Filter={search_filter}')
+        resp = connection.ldapConnection.search(searchBase=domain_dn, searchFilter=search_filter, attributes=attributes, sizeLimit=0)
+
+        trusts = []
+        context.log.debug(f'Total of records returned {len(resp)}')
+        for item in resp:
+            if isinstance(item, ldapasn1_impacket.SearchResultEntry) is not True:
+                continue
+            flat_name = ''
+            trust_partner = ''
+            trust_direction = ''
+            trust_transitive = [] 
+            try:
+                for attribute in item['attributes']:
+                    if str(attribute['type']) == 'flatName':
+                        flat_name = str(attribute['vals'][0])
+                    elif str(attribute['type']) == 'trustPartner':
+                        trust_partner = str(attribute['vals'][0])
+                    elif str(attribute['type']) == 'trustDirection':
+                        if str(attribute['vals'][0]) == '1':
+                            trust_direction = 'Inbound'
+                        elif str(attribute['vals'][0]) == '2':
+                            trust_direction = 'Outbound'
+                        elif str(attribute['vals'][0]) == '3':
+                            trust_direction = 'Bidirectional'
+                    elif str(attribute['type']) == 'trustAttributes': 
+                        trust_attributes_value = int(attribute['vals'][0])
+                        if trust_attributes_value & 0x1:
+                            trust_transitive.append('Non-Transitive')
+                        if trust_attributes_value & 0x2:
+                            trust_transitive.append('Uplevel-Only')
+                        if trust_attributes_value & 0x4:
+                            trust_transitive.append('Quarantined Domain')
+                        if trust_attributes_value & 0x8:
+                            trust_transitive.append('Forest Transitive')
+                        if trust_attributes_value & 0x10:
+                            trust_transitive.append('Cross Organization')
+                        if trust_attributes_value & 0x20:
+                            trust_transitive.append('Within Forest')
+                        if trust_attributes_value & 0x40:
+                            trust_transitive.append('Treat as External')
+                        if trust_attributes_value & 0x80:
+                            trust_transitive.append('Uses RC4 Encryption')
+                        if trust_attributes_value & 0x100:
+                            trust_transitive.append('Cross Organization No TGT Delegation')
+                        if trust_attributes_value & 0x2000:
+                            trust_transitive.append('PAM Trust')
+                        if not trust_transitive:
+                            trust_transitive.append('Other')
+                trust_transitive = ', '.join(trust_transitive)
+
+                if flat_name and trust_partner and trust_direction and trust_transitive:
+                    trusts.append((flat_name, trust_partner, trust_direction, trust_transitive))
+            except Exception as e:
+                context.log.debug(f'Cannot process trust relationship due to error {e}')
+                pass
+
+        if trusts:
+            context.log.success('Found the following trust relationships:')
+            for trust in trusts:
+                context.log.highlight(f'{trust[1]} -> {trust[2]} -> {trust[3]}')
+        else:
+            context.log.display('No trust relationships found')
+
+        return True
+