public override void Bad() { 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"); } } /* serialize data to a byte array */ byte[] dataSerialized = null; try { BinaryFormatter bf = new BinaryFormatter(); using (var ms = new MemoryStream()) { bf.Serialize(ms, data); dataSerialized = ms.ToArray(); } CWE23_Relative_Path_Traversal__Connect_tcp_75b.BadSink(dataSerialized); } catch (SerializationException exceptSerialize) { IO.Logger.Log(NLog.LogLevel.Warn, "Serialization exception in serialization", exceptSerialize); } }
/* goodG2B() - use goodsource and badsink */ private static void GoodG2B() { string data; /* FIX: Use a hardcoded string */ data = "foo"; /* serialize data to a byte array */ byte[] dataSerialized = null; try { BinaryFormatter bf = new BinaryFormatter(); using (var ms = new MemoryStream()) { bf.Serialize(ms, data); dataSerialized = ms.ToArray(); } CWE23_Relative_Path_Traversal__Connect_tcp_75b.GoodG2BSink(dataSerialized); } catch (SerializationException exceptSerialize) { IO.Logger.Log(NLog.LogLevel.Warn, "Serialization exception in serialization", exceptSerialize); } }