From 3d60e608420576a54b57a5f8c9ae9ee457b5066c Mon Sep 17 00:00:00 2001
From: Johannes Meyer <johannes.meyer@netways.de>
Date: Thu, 3 Dec 2015 15:17:09 +0100
Subject: [PATCH] SortBox: Fix too strict sort param check

One was able to produce invalid SQL or other
errors by adding "sort=" as parameter.
---
 library/Icinga/Web/Widget/SortBox.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/library/Icinga/Web/Widget/SortBox.php b/library/Icinga/Web/Widget/SortBox.php
index 5e7b35915..45ceebc44 100644
--- a/library/Icinga/Web/Widget/SortBox.php
+++ b/library/Icinga/Web/Widget/SortBox.php
@@ -118,7 +118,7 @@ class SortBox extends AbstractWidget
             if ($request === null) {
                 $request = Icinga::app()->getRequest();
             }
-            if (null === $sort = $request->getParam('sort')) {
+            if (! ($sort = $request->getParam('sort'))) {
                 list($sort, $dir) = $this->getSortDefaults();
             } else {
                 list($_, $dir) = $this->getSortDefaults($sort);