Navigation



Tutorial for Fuzzled – Writing a Fuzzer with the Fuzzled Framework

Last updated: September 9, 2015 | 6,538 views

If you remember we mentioned Fuzzled a little while back, the PERL fuzzing framework. Apparently Fuzzled 1.1 should be coming out soon.

Fuzzled is a powerful fuzzing framework. Fuzzled includes helper functions, namespaces, factories which allow a wide variety of fuzzing tools to be developed. Fuzzled comes with several example protocols and drivers for them.

Someone was kind enough to write a short paper on how to use fuzzled to write a simple fuzzer. The paper includes some techniques used to dismantle protocols including documentation, observation and static analysis.

To quote the author:

The paper includes some of the techniques I use to dismantle protocols including documentation, observation and static analysis. It then moves on to the fundamentals of implementing a protocol using the framework. I talk about base requests, namespaces and tieing them together with factories with reference to Fuzzled::Protocol::HTTP, an example included in the framework. The paper also highlights a few tricks to the framework, including developing multi-threaded fuzzers, identifying offsets and parsing packets. It ends with my techniques to identify vulnerabilities highlighted by fuzzers.

You can download the paper here:

WAFUTFF [PDF]

Share
Tweet
Share
Buffer
WhatsApp
Email
0 Shares
Posted in: Hacking Tools, Secure Coding

, , , , ,


Latest Posts:


GKE Auditor - Detect Google Kubernetes Engine Misconfigurations GKE Auditor – Detect Google Kubernetes Engine Misconfigurations
GKE Auditor is a Java-based tool to detect Google Kubernetes Engine misconfigurations, it aims to help security & dev teams streamline the configuration process
January 1, 2021 - 100 Shares
zANTI - Android Wireless Hacking Tool Free Download zANTI – Android Wireless Hacking Tool Free Download
zANTI is an Android Wireless Hacking Tool that functions as a mobile penetration testing toolkit that lets you assess the risk level of a network using mobile.
December 7, 2020 - 166 Shares
HELK - Open Source Threat Hunting Platform HELK – Open Source Threat Hunting Platform
The Hunting ELK or simply the HELK is an Open-Source Threat Hunting Platform with advanced analytics capabilities such as SQL declarative language, graphing etc
November 6, 2020 - 171 Shares
trape - OSINT Analysis Tool For People Tracking Trape – OSINT Analysis Tool For People Tracking
Trape is an OSINT analysis tool, which allows people to track and execute intelligent social engineering attacks in real-time.
November 3, 2020 - 234 Shares
Fuzzilli - JavaScript Engine Fuzzing Library Fuzzilli – JavaScript Engine Fuzzing Library
Fuzzilii is a JavaScript engine fuzzing library, it's a coverage-guided fuzzer for dynamic language interpreters based on a custom intermediate language.
October 22, 2020 - 101 Shares
OWASP APICheck - HTTP API DevSecOps Toolset OWASP APICheck – HTTP API DevSecOps Toolset
APICheck is an HTTP API DevSecOps toolset, it integrates existing tools, creates execution chains easily and is designed for integration with 3rd parties.
October 13, 2020 - 127 Shares


4 Responses to Tutorial for Fuzzled – Writing a Fuzzer with the Fuzzled Framework

  1. dirty November 6, 2007 at 6:14 pm #

    does anyone know when fuzzled 1.1 is coming out

  2. Darknet November 7, 2007 at 6:19 am #

    dirty: They are just polishing it off right now, you can request a pre-release if you are interested from the author. If not it should be fairly soon (within November I’d guess).

  3. dirty November 7, 2007 at 9:01 pm #

    darknet
    Thanks!! sounds good

  4. Tim Brown November 15, 2007 at 12:53 am #

    Fuzzled 1.1 is now out at http://www.nth-dimension.org.uk/downloads.php?id=15. I’m actually already working on the 2.x branch. Whilst 1.x fuzzers will still work under 2.x, my current focus has been abstracting the producer/consumer model and shared memory management used by Fuzzled. The upshot is that the protocol modules themselves are much, much cleaner.