/* goodG2B() - use goodsource and badsink */ private void GoodG2B(HttpRequest req, HttpResponse resp) { string data; /* FIX: Use a hardcoded string */ data = "foo"; CWE113_HTTP_Response_Splitting__Web_Listen_tcp_addHeader_54b.GoodG2BSink(data, req, resp); }
/* goodB2G() - use badsource and goodsink */ private void GoodB2G(HttpRequest req, HttpResponse resp) { string data; data = ""; /* Initialize data */ /* Read data using a listening tcp connection */ { TcpListener listener = null; try { listener = new TcpListener(IPAddress.Parse("10.10.1.10"), 39543); listener.Start(); using (TcpClient tcpConn = listener.AcceptTcpClient()) { /* read input from socket */ using (StreamReader sr = new StreamReader(tcpConn.GetStream())) { /* POTENTIAL FLAW: Read data using a listening tcp connection */ data = sr.ReadLine(); } } } catch (IOException exceptIO) { IO.Logger.Log(NLog.LogLevel.Warn, exceptIO, "Error with stream reading"); } finally { if (listener != null) { try { listener.Stop(); } catch (SocketException se) { IO.Logger.Log(NLog.LogLevel.Warn, se, "Error closing TcpListener"); } } } } CWE113_HTTP_Response_Splitting__Web_Listen_tcp_addHeader_54b.GoodB2GSink(data, req, resp); }