/* 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"); } } string[] dataArray = new string[5]; dataArray[2] = data; CWE134_Externally_Controlled_Format_String__Connect_tcp_Format_66b.GoodB2GSink(dataArray); }
/* goodG2B() - use goodsource and badsink */ private static void GoodG2B() { string data; /* FIX: Use a hardcoded string */ data = "foo"; string[] dataArray = new string[5]; dataArray[2] = data; CWE134_Externally_Controlled_Format_String__Connect_tcp_Format_66b.GoodG2BSink(dataArray); }