WebSpa

WebSpa is a Java web knocking tool for sending a single HTTP/S request to your web server, in order to authorise the execution of a premeditated Operating System (O/S) command on it.

If port knocking is defined as “a form of host-to-host communication in which information flows across closed ports” then we define web knocking a form of host-to-host communication in which information flows across erroneous URLs.

Finally, in an attempt to mirror the operation of Single Packet Authorisation (SPA), the entirety of a user’s action is submitted through a single GET request.

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