diff --git a/lib/controller/controller.py b/lib/controller/controller.py
index 38b2e67f5..21dd03602 100644
--- a/lib/controller/controller.py
+++ b/lib/controller/controller.py
@@ -394,8 +394,12 @@ def start():
                     # Test Cookie header only if --level >= 2
                     skip |= (place == PLACE.COOKIE and conf.level < 2)
 
-                    skip &= not (place == PLACE.UA and intersect(USER_AGENT_ALIASES, conf.testParameter))
-                    skip &= not (place == PLACE.REFERER and intersect(REFERER_ALIASES, conf.testParameter))
+                    skip |= (place == PLACE.UA and intersect(USER_AGENT_ALIASES, conf.skip, True) not in ([], None))
+                    skip |= (place == PLACE.REFERER and intersect(REFERER_ALIASES, conf.skip, True) not in ([], None))
+                    skip |= (place == PLACE.COOKIE and intersect('cookie', conf.skip, True) not in ([], None))
+
+                    skip &= not (place == PLACE.UA and intersect(USER_AGENT_ALIASES, conf.testParameter, True))
+                    skip &= not (place == PLACE.REFERER and intersect(REFERER_ALIASES, conf.testParameter, True))
 
                     if skip:
                         continue
diff --git a/lib/core/common.py b/lib/core/common.py
index 320c35af0..36779e0ea 100644
--- a/lib/core/common.py
+++ b/lib/core/common.py
@@ -2679,7 +2679,7 @@ def getExceptionFrameLocals():
 
     return retVal
 
-def intersect(valueA, valueB):
+def intersect(valueA, valueB, lowerCase=False):
     """
     Returns intersection of the array-ized values
     """
@@ -2687,7 +2687,14 @@ def intersect(valueA, valueB):
     retVal = None
 
     if valueA and valueB:
-        retVal = [val for val in arrayizeValue(valueA) if val in arrayizeValue(valueB)]
+        valueA = arrayizeValue(valueA)
+        valueB = arrayizeValue(valueB)
+
+        if lowerCase:
+            valueA = [val.lower() if isinstance(val, basestring) else val for val in valueA]
+            valueB = [val.lower() if isinstance(val, basestring) else val for val in valueB]
+
+        retVal = [val for val in valueA if val in valueB]
 
     return retVal