/* goodG2B() - use goodsource and badsink */ private void GoodG2B(HttpRequest req, HttpResponse resp) { string data = null; /* FIX: Use a hardcoded string */ data = "foo"; goodG2BPublicStatic = true; CWE89_SQL_Injection__Web_Listen_tcp_ExecuteNonQuery_22b.GoodG2BSink(data, req, resp); }
/* goodB2G1() - use badsource and goodsink by setting the static variable to false instead of true */ private void GoodB2G1(HttpRequest req, HttpResponse resp) { string data = null; 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"); } } } } goodB2G1PublicStatic = false; CWE89_SQL_Injection__Web_Listen_tcp_ExecuteNonQuery_22b.GoodB2G1Sink(data, req, resp); }