/* goodB2G() - use BadSource and GoodSink */ private static void GoodB2G(HttpRequest req, HttpResponse resp) { int data; data = int.MinValue; /* initialize data in case id is not in query string */ /* POTENTIAL FLAW: Parse id param out of the URL querystring (without using getParam) */ { if (req.QueryString["id"] != null) { try { data = int.Parse(req.QueryString["id"]); } catch (FormatException exceptNumberFormat) { IO.Logger.Log(NLog.LogLevel.Warn, exceptNumberFormat, "Number format exception reading id from query string"); } } } LinkedList <int> dataLinkedList = new LinkedList <int>(); dataLinkedList.AddLast(data); dataLinkedList.AddLast(data); dataLinkedList.AddLast(data); CWE129_Improper_Validation_of_Array_Index__QueryString_Web_array_size_73b.GoodB2GSink(dataLinkedList, req, resp); }
/* goodG2B() - use GoodSource and BadSink */ private static void GoodG2B(HttpRequest req, HttpResponse resp) { int data; /* FIX: Use a hardcoded number that won't cause underflow, overflow, divide by zero, or loss-of-precision issues */ data = 2; LinkedList <int> dataLinkedList = new LinkedList <int>(); dataLinkedList.AddLast(data); dataLinkedList.AddLast(data); dataLinkedList.AddLast(data); CWE129_Improper_Validation_of_Array_Index__QueryString_Web_array_size_73b.GoodG2BSink(dataLinkedList, req, resp); }