Avoid unreliable targets

If we can't garantee GreatRanking on specific targets, avoid them.

Author: wchen-r7

modules/exploits/multi/browser/adobe_flash_hacking_team_uaf.rb

@@ -21,8 +21,7 @@ def initialize(info={})
 
         Windows 7 SP1 (32-bit), IE11 and Adobe Flash 18.0.0.194,
         Windows 7 SP1 (32-bit), Firefox 38.0.5 and Adobe Flash 18.0.0.194,
-        Windows 8.1 (32-bit), Firefox and Adobe Flash 18.0.0.194,
-        Windows 8.1 (32-bit), IE11 and Flash 17.0.0.169, and
+        Windows 8.1 (32-bit), Firefox and Adobe Flash 18.0.0.194, and
         Linux Mint "Rebecca" (32 bits), Firefox 33.0 and Adobe Flash 11.2.202.468.
       },
       'License'             => MSF_LICENSE,
@@ -66,6 +65,15 @@ def initialize(info={})
 
             false
           end,
+          :ua_ver  => lambda do |ver|
+            # Not reliable enough yet, don't fire
+            case target.name
+            when 'Windows'
+              return false if ver == '11.0'
+            end
+
+            true
+          end,
           :flash   => lambda do |ver|
             case target.name
             when 'Windows'