Online Trace.axd File Scanner

ASP.NET's includes a powerful mechanism for detailed request tracing called Trace.axd. The Trace.axd application keeps a very detailed log of all requests made to an application over a period of time but it can also be used by attackers to gain information about requests and responses to the application.

An attacker can obtain information such as:

1. Session cookies
2. Session state
3. Query string and post variables
4. Physical path of the requested file

This means that the attacker can hijack any active user's session by using their session details.