Change description

Pre-auth is implied.

Author: wchen-r7

modules/exploits/multi/http/hp_sitescope_issuesiebelcmd.rb

@@ -21,7 +21,7 @@ def initialize(info = {})
       'Description' => %q{
         This module exploits a code execution flaw in HP SiteScope. The vulnerability exists in the
         APISiteScopeImpl web service, specifically in the issueSiebelCmd method, which allows the
-        user to execute arbitrary commands without prior authentication. This module has been tested
+        user to execute arbitrary commands without authentication. This module has been tested
         successfully on HP SiteScope 11.20 over Windows 2003 SP2, Windows 2008 and CentOS 6.5.
       },
       'Author'       =>