public override void Bad(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"); } } } } Hashtable dataHashtable = new Hashtable(5); dataHashtable.Add(0, data); dataHashtable.Add(1, data); dataHashtable.Add(2, data); CWE89_SQL_Injection__Web_Listen_tcp_ExecuteNonQuery_72b.BadSink(dataHashtable, req, resp); }