Index: docroot/sites/all/modules/shield/shield.module
===================================================================
--- docroot/sites/all/modules/shield/shield.module	(revision 227)
+++ docroot/sites/all/modules/shield/shield.module	(revision 233)
@@ -96,6 +96,20 @@
     return;
   }
 
+  //set http auth headers for apache+php-cgi work around
+  if (isset($_SERVER['HTTP_AUTHORIZATION']) && preg_match('/Basic\s+(.*)$/i', $_SERVER['HTTP_AUTHORIZATION'], $matches)) {
+      list($name, $password) = explode(':', base64_decode($matches[1]));
+      $_SERVER['PHP_AUTH_USER'] = strip_tags($name);
+      $_SERVER['PHP_AUTH_PW'] = strip_tags($password);
+  }
+
+  //set http auth headers for apache+php-cgi work around if variable gets renamed by apache
+  if (isset($_SERVER['REDIRECT_HTTP_AUTHORIZATION']) && preg_match('/Basic\s+(.*)$/i', $_SERVER['REDIRECT_HTTP_AUTHORIZATION'], $matches)) {
+      list($name, $password) = explode(':', base64_decode($matches[1]));
+      $_SERVER['PHP_AUTH_USER'] = strip_tags($name);
+      $_SERVER['PHP_AUTH_PW'] = strip_tags($password);
+  }
+
   $pass = variable_get('shield_pass', '');
   if (!empty($_SERVER['PHP_AUTH_USER']) && isset($_SERVER['PHP_AUTH_PW'])
       && $_SERVER['PHP_AUTH_USER'] == $user