public override void Bad(HttpRequest req, HttpResponse resp)
{
string data;
data = ""; /* Initialize data */
/* read input from WebClient */
{
try
{
using (WebClient client = new WebClient())
{
using (StreamReader sr = new StreamReader(client.OpenRead("http://www.example.org/")))
{
/* POTENTIAL FLAW: Read data from a web server with WebClient */
/* This will be reading the first "line" of the response body,
* which could be very long if there are no newlines in the HTML */
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();
}
CWE80_XSS__Web_NetClient_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)
{
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();
}
CWE80_XSS__Web_NetClient_75b.GoodG2BSink(dataSerialized, req, resp);
}
catch (SerializationException exceptSerialize)
{
IO.Logger.Log(NLog.LogLevel.Warn, "Serialization exception in serialization", exceptSerialize);
}
}