/* goodB2G() - use BadSource and GoodSink */ private static void GoodB2G(HttpRequest req, HttpResponse resp) { string data; data = ""; /* Initialize data */ /* read input from WebClient */ { try { using (WebClient client = new WebClient()) { using (StreamReader sr = new StreamReader(client.OpenRead("http://www.example.org/"))) { /* POTENTIAL FLAW: Read data from a web server with WebClient */ /* This will be reading the first "line" of the response body, * which could be very long if there are no newlines in the HTML */ data = sr.ReadLine(); } } } catch (IOException exceptIO) { IO.Logger.Log(NLog.LogLevel.Warn, exceptIO, "Error with stream reading"); } } Dictionary <int, string> dataDictionary = new Dictionary <int, string>(); dataDictionary.Add(0, data); dataDictionary.Add(1, data); dataDictionary.Add(2, data); CWE113_HTTP_Response_Splitting__Web_NetClient_addHeader_74b.GoodB2GSink(dataDictionary, req, resp); }
/* goodG2B() - use GoodSource and BadSink */ private static void GoodG2B(HttpRequest req, HttpResponse resp) { string data; /* FIX: Use a hardcoded string */ data = "foo"; Dictionary <int, string> dataDictionary = new Dictionary <int, string>(); dataDictionary.Add(0, data); dataDictionary.Add(1, data); dataDictionary.Add(2, data); CWE113_HTTP_Response_Splitting__Web_NetClient_addHeader_74b.GoodG2BSink(dataDictionary, req, resp); }