/* goodB2G() - use BadSource and GoodSink */ private static void GoodB2G() { string data; data = ""; /* Initialize data */ /* Read data using an outbound tcp connection */ { try { /* Read data using an outbound tcp connection */ using (TcpClient tcpConn = new TcpClient("host.example.org", 39544)) { /* read input from socket */ using (StreamReader sr = new StreamReader(tcpConn.GetStream())) { /* POTENTIAL FLAW: Read data using an outbound tcp connection */ data = sr.ReadLine(); } } } catch (IOException exceptIO) { IO.Logger.Log(NLog.LogLevel.Warn, exceptIO, "Error with stream reading"); } } Hashtable dataHashtable = new Hashtable(5); dataHashtable.Add(0, data); dataHashtable.Add(1, data); dataHashtable.Add(2, data); CWE134_Externally_Controlled_Format_String__Connect_tcp_console_interpolation_72b.GoodB2GSink(dataHashtable); }
/* goodG2B() - use GoodSource and BadSink */ private static void GoodG2B() { string data; /* FIX: Use a hardcoded string */ data = "foo"; Hashtable dataHashtable = new Hashtable(5); dataHashtable.Add(0, data); dataHashtable.Add(1, data); dataHashtable.Add(2, data); CWE134_Externally_Controlled_Format_String__Connect_tcp_console_interpolation_72b.GoodG2BSink(dataHashtable); }