public override void Bad(HttpRequest req, HttpResponse resp) { int data; data = int.MinValue; /* Initialize data */ /* POTENTIAL FLAW: Read data from a querystring using Params.Get() */ { string stringNumber = req.Params.Get("name"); try { data = int.Parse(stringNumber.Trim()); } catch (FormatException exceptNumberFormat) { IO.Logger.Log(NLog.LogLevel.Warn, exceptNumberFormat, "Number format exception reading data from parameter 'name'"); } } /* 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(); } CWE789_Uncontrolled_Mem_Alloc__Params_Get_Web_HashSet_75b.BadSink(dataSerialized, req, resp); } catch (SerializationException exceptSerialize) { IO.Logger.Log(NLog.LogLevel.Warn, "Serialization exception in serialization", exceptSerialize); } }
/* goodG2B() - use goodsource and badsink */ private static void GoodG2B(HttpRequest req, HttpResponse resp) { int data; /* FIX: Use a hardcoded number that won't cause underflow, overflow, divide by zero, or loss-of-precision issues */ data = 2; /* 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(); } CWE789_Uncontrolled_Mem_Alloc__Params_Get_Web_HashSet_75b.GoodG2BSink(dataSerialized, req, resp); } catch (SerializationException exceptSerialize) { IO.Logger.Log(NLog.LogLevel.Warn, "Serialization exception in serialization", exceptSerialize); } }