static void FuzzHttpPort(SoapBinding binding)
{
if (binding.Verb == "GET")
{
FuzzHttpGetPort(binding);
}
else if (binding.Verb == "POST")
{
FuzzHttpPostPort(binding);
}
else
{
throw new Exception("Don't know verb: " + binding.Verb);
}
}
static void FuzzService(SoapService service)
{
Console.WriteLine("Fuzzing service: " + service.Name);
foreach (SoapPort port in service.Ports)
{
Console.WriteLine("Fuzzing " + port.ElementType.Split(':')[0] + " port: " + port.Name);
SoapBinding binding = _wsdl.Bindings.Single(b => b.Name == port.Binding.Split(':')[1]);
if (binding.IsHTTP)
{
FuzzHttpPort(binding);
}
else
{
FuzzSoapPort(binding);
}
}
}
static void FuzzSoapPort(SoapBinding binding)
{
SoapPortType portType = _wsdl.PortTypes.Single(pt => pt.Name == binding.Type.Split(':')[1]);
foreach (SoapBindingOperation op in binding.Operations)
{
Console.WriteLine("Fuzzing operation: " + op.Name);
string url = _endpoint;
SoapOperation po = portType.Operations.Single(p => p.Name == op.Name);
SoapMessage input = _wsdl.Messages.Single(m => m.Name == po.Input.Split(':')[1]);
XNamespace soapNS = "http://schemas.xmlsoap.org/soap/envelope/";
XNamespace xmlNS = op.SoapAction.Replace(op.Name, string.Empty);
XElement soapBody = new XElement(soapNS + "Body");
XElement soapOperation = new XElement(xmlNS + op.Name);
soapBody.Add(soapOperation);
List <Guid> paramList = new List <Guid>();
SoapType type = _wsdl.Types.Single(t => t.Name == input.Parts[0].Element.Split(':')[1]);
foreach (SoapTypeParameter param in type.Parameters)
{
XElement soapParam = new XElement(xmlNS + param.Name);
if (param.Type.EndsWith("string"))
{
Guid guid = Guid.NewGuid();
paramList.Add(guid);
soapParam.SetValue(guid.ToString());
}
soapOperation.Add(soapParam);
}
XDocument soapDoc = new XDocument(
new XDeclaration("1.0", "ascii", "true"),
new XElement(soapNS + "Envelope",
new XAttribute(XNamespace.Xmlns + "soap", soapNS),
new XAttribute("xmlns", xmlNS),
soapBody));
int k = 0;
foreach (Guid parm in paramList)
{
string testSoap = soapDoc.ToString().Replace(parm.ToString(), "fd'sa");
byte[] data = System.Text.Encoding.ASCII.GetBytes(testSoap);
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
req.Headers["SOAPAction"] = op.SoapAction;
req.Method = "POST";
req.ContentType = "text/xml";
req.ContentLength = data.Length;
using (Stream stream = req.GetRequestStream())
stream.Write(data, 0, data.Length);
string resp = string.Empty;
try
{
using (StreamReader rdr = new StreamReader(req.GetResponse().GetResponseStream()))
resp = rdr.ReadToEnd();
}
catch (WebException ex)
{
using (StreamReader rdr = new StreamReader(ex.Response.GetResponseStream()))
resp = rdr.ReadToEnd();
if (resp.Contains("syntax error"))
{
Console.WriteLine("Possible SQL injection vector in parameter: " + type.Parameters[k].Name);
}
}
k++;
}
}
}
static void FuzzHttpPostPort(SoapBinding binding)
{
SoapPortType portType = _wsdl.PortTypes.Single(pt => pt.Name == binding.Type.Split(':')[1]);
foreach (SoapBindingOperation op in binding.Operations)
{
Console.WriteLine("Fuzzing operation: " + op.Name);
string url = _endpoint + op.Location;
SoapOperation po = portType.Operations.Single(p => p.Name == op.Name);
SoapMessage input = _wsdl.Messages.Single(m => m.Name == po.Input.Split(':')[1]);
Dictionary <string, string> parameters = new Dictionary <string, string>();
foreach (SoapMessagePart part in input.Parts)
{
parameters.Add(part.Name, part.Type);
}
string postParams = string.Empty;
bool first = true;
List <Guid> guids = new List <Guid>();
foreach (var param in parameters)
{
if (param.Value.EndsWith("string"))
{
Guid guid = Guid.NewGuid();
postParams += (first ? "" : "&") + param.Key + "=" + guid.ToString();
guids.Add(guid);
}
if (first)
{
first = false;
}
}
int k = 0;
foreach (Guid guid in guids)
{
string testParams = postParams.Replace(guid.ToString(), "fd'sa");
byte[] data = System.Text.Encoding.ASCII.GetBytes(testParams);
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
req.Method = "POST";
req.ContentType = "application/x-www-form-urlencoded";
req.ContentLength = data.Length;
req.GetRequestStream().Write(data, 0, data.Length);
string resp = string.Empty;
try
{
using (StreamReader rdr = new StreamReader(req.GetResponse().GetResponseStream()))
resp = rdr.ReadToEnd();
}
catch (WebException ex)
{
using (StreamReader rdr = new StreamReader(ex.Response.GetResponseStream()))
resp = rdr.ReadToEnd();
if (resp.Contains("syntax error"))
{
Console.WriteLine("Possible SQL injection vector in parameter: " + input.Parts[k].Name);
}
}
k++;
}
}
}
static void FuzzHttpGetPort(SoapBinding binding)
{
SoapPortType portType = _wsdl.PortTypes.Single(pt => pt.Name == binding.Type.Split(':')[1]);
foreach (SoapBindingOperation op in binding.Operations)
{
Console.WriteLine("Fuzzing operation: " + op.Name);
string url = _endpoint + op.Location;
SoapOperation po = portType.Operations.Single(p => p.Name == op.Name);
SoapMessage input = _wsdl.Messages.Single(m => m.Name == po.Input.Split(':')[1]);
Dictionary <string, string> parameters = new Dictionary <string, string>();
foreach (SoapMessagePart part in input.Parts)
{
parameters.Add(part.Name, part.Type);
}
bool first = true;
List <Guid> guidList = new List <Guid>();
foreach (var param in parameters)
{
if (param.Value.EndsWith("string"))
{
Guid guid = Guid.NewGuid();
guidList.Add(guid);
url += (first ? "?" : "&") + param.Key + "=" + guid.ToString();
}
if (first)
{
first = false;
}
}
Console.WriteLine("Fuzzing full url: " + url);
int k = 0;
foreach (Guid guid in guidList)
{
string testUrl = url.Replace(guid.ToString(), "fd'sa");
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(testUrl);
string resp = string.Empty;
try
{
using (StreamReader rdr = new StreamReader(req.GetResponse().GetResponseStream()))
resp = rdr.ReadToEnd();
}
catch (WebException ex)
{
using (StreamReader rdr = new StreamReader(ex.Response.GetResponseStream()))
resp = rdr.ReadToEnd();
if (resp.Contains("syntax error"))
{
Console.WriteLine("Possible SQL injection vector in parameter: " + input.Parts[k].Name);
}
}
k++;
}
}
}
