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4182-Fuzzer

This is the fuzzer for Security II.

General Info

  • This runs with Python version 3.6.7

Running -- temp

  • Set up with pip install -r requirements.txt
  • Run fuzzer with python Main.py [args]
  • Run servier with python MainServer.py [args]
  • NOTE: Only runs with python v3.6 and later

TO BE IMPLEMENTED

IP Layer Fuzzing -- TCP layer is valid and IP Header is fuzzed

  • Run a default set of tests where each field is fuzzed individually with all possible values tested for each field
  • The user can specify what fields to fuzz but use the default tests -- DONE
  • Running a set of tests where content of fields is read in as hex from a file. -- DONE
  • The user can specify multiple tests in the same file -- DONE
  • Each line can correspond to a given packet with tag:value pairs -- DONE
  • Set a maximum on the number of tests in a given file
  • The fuzzer must include a small default payload that is specified in a file and can be edited by the user -- DONE

TCP Layer Fuzzing -- IP Layer is valid and TCP layer is fuzzed

  • Run a default set of tests where each field is fuzzed individually with all possible values tested for each field
  • The user can specify what fields to fuzz but use the default tests -- DONE
  • Run a set of tests where the content of the fields is read in as hex from a file. -- DONE
  • The user can specify multiple tests in the same file -- DONE
  • Each line can correspond to a given packet with tag:value pairs -- DONE
  • Set a maximum on the number of tests in a given file
  • The fuzzer must include a small default payload that is specified in a file and can be edited by the user -- DONE

Application Layer Fuzzing -- Valid IP & TCP Layers

  • Run a set of default tests where random payloads are sent to the Server
  • User specifies the number of tests to run -- DONE
  • User can specify a fixed payload size -- DONE
  • User can specify size of the fixed payload -- DONE
  • User can specify a varied payload -- DONE
  • User can specify the range in a varied payload -- DONE
  • User can specify payload in a file -- DONE
  • Each line in the file is a separate payload -- DONE
  • There is a maximum number of tests in the file
  • The fuzzer processes the response from the server -- DONE
  • The fuzzer tracks the number of valid and invalid responses -- DONE
  • When the fuzzer completes it will print the total number of tests, valid, and invalid counts -- DONE

Server

  • Normal socket library that does not parse the IP and Transport Layers -- DONE
  • Inspect the payload for a series of bytes (referred to as the pattern ) at the start of the payload -- DONE
  • The pattern should be specified in hex in a file and read when the server starts -- DONE
  • The pattern may not exceed the maximum allowed payload length -- DONE
  • The server will send a response with payload 0x00 if valid -- DONE
  • The server will send a response with payload 0xFF if invalid -- DONE
  • The server will keep a count of the number of valid payloads received -- DONE
  • The server will keep a count of the number of invalid payloads received -- DONE
  • When the server is done or stopped it will either display the counts or write them to a file before exiting -- DONE

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This is the fuzzer for Security II.

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