--- a/univention-python/modules/uldap.py	
+++ a/univention-python/modules/uldap.py	
@@ -281,7 +281,9 @@ class access:
 
 	def get(self, dn, attr=[], required=False):
 		'''returns ldap object'''
-
+		if len(attr) == 0:
+			attr.append('+')
+			attr.append('*')
 		if dn:
 			try:
 				result=self.lo.search_s( dn, ldap.SCOPE_BASE,