From 69cdad414866ce2187262027fb7a88bd4ae23229 Mon Sep 17 00:00:00 2001
From: Miroslav Stampar <miroslav.stampar@gmail.com>
Date: Sun, 23 Nov 2014 15:55:12 +0100
Subject: [PATCH] Patch for an Issue #958

---
 lib/core/common.py | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/lib/core/common.py b/lib/core/common.py
index 977b0c85c..7ad999438 100755
--- a/lib/core/common.py
+++ b/lib/core/common.py
@@ -992,10 +992,22 @@ def sanitizeStr(value):
 
 def checkFile(filename):
     """
-    Checks for file existence
+    Checks for file existence and readability
     """
 
+    valid = True
+
     if filename is None or not os.path.isfile(filename):
+        valid = False
+
+    if valid:
+        try:
+            with open(filename, "rb") as f:
+                pass
+        except:
+            valid = False
+
+    if not valid:
         raise SqlmapSystemException("unable to read file '%s'" % filename)
 
 def banner():