Fix rapid7#5968, some modules not handling Rex::Post::Meterpreter::RequestError exceptions

* Related to the usage of ADSI on unsupported OSes

Author: jvazquez-r7

modules/post/windows/gather/credentials/enum_laps.rb

@@ -51,7 +51,7 @@ def run
 
     begin
       q = query(search_filter, max_search, FIELDS)
-    rescue RuntimeError => e
+    rescue ::RuntimeError, ::Rex::Post::Meterpreter::RequestError => e
       print_error(e.message)
       return
     end

modules/post/windows/gather/enum_ad_bitlocker.rb

@@ -39,7 +39,13 @@ def run
     fields = datastore['FIELDS'].gsub(/\s+/, "").split(',')
     search_filter = datastore['FILTER']
     max_search = datastore['MAX_SEARCH']
-    q = query(search_filter, max_search, fields)
+
+    begin
+      q = query(search_filter, max_search, fields)
+    rescue ::RuntimeError, ::Rex::Post::Meterpreter::RequestError => e
+      print_error(e.message)
+      return
+    end
 
     if q.nil? || q[:results].empty?
       print_status('No results found...')

modules/post/windows/gather/enum_ad_computers.rb

@@ -60,7 +60,13 @@ def run
     fields = datastore['FIELDS'].gsub(/\s+/,"").split(',')
     search_filter = datastore['FILTER']
     max_search = datastore['MAX_SEARCH']
-    q = query(search_filter, max_search, fields)
+
+    begin
+      q = query(search_filter, max_search, fields)
+    rescue ::RuntimeError, ::Rex::Post::Meterpreter::RequestError => e
+      print_error(e.message)
+      return
+    end
 
     return if q.nil? or q[:results].empty?