We offer the world’s first training WebAssembly security training in 4 to 5 days format. We have also developed an exclusive security training about Rust that required only 2 days. Recently we also publish a new online course about C/C++ WhiteBox fuzzing. Customization is possible but need to be requested as soon as possible.

Choose your favorite learning format!

  • Live ONSITE training

    Training will be given onsite at your office allowing direct and physical interaction with the attendees. (Currently not available due to COVID)

  • Live ONLINE training

    Security training will be given online during live Zoom or Google meet sessions allowing direct and real-time interaction with the attendees.

  • Offline RECORDED training

    Videos on demand (VoD) of the training will be accessible on a dedicated platform allowing participants to follow at their own pace and at any time corresponding to their schedule.

  • Mixed format

    This format is basically a mixed of the live online training and the offline VoDs format. Attendees will get access to the video recording and after some time (like one month), some live Q&A session will be defined.

Choose which security training you need!

  • rust security patrick ventuzelo training webassembly Rust Security
  • WebAssembly Security training wasm patrick ventuzelo WebAssembly Security
  • c c++ fuzzing afl libfuzzer honggfuzz patrick ventuzelo C/C++ FUZZING

This goal of this course is to give you all the prerequisites to understand which kind of vulnerability can be found inside Rust code. You will learn how to find low hanging fruits bugs manually and automatically using Rust auditing tools. Finally, you will discover how to build custom Rust fuzzerstriage/debug crashes and improve your code coverage using differents techniques.

Along this training, students will deal with a lots of hands-on exercises allowing them to internalize concepts and techniques taught in class.


Day 1 - Rust Security Audit and Code Review

  • Introduction to Rust and its Ecosystem
  • Security concepts
    • Ownership, Borrowing and Lifetime
  • Rust most common vulnerabilities
    • Error handling & Unwrapping, Panicking macros, Arithmetic errors
    • Index out of bound, Stack overflow, resource exhaustion (OOM)
  • Unsafe codes
    • Tooling and Sanitizers (ASAN, MSAN, etc.)
    • Out of bound access (OOB), Use-after-free (UAF), Double free, Memory leak, Data Races and Race Conditions
  • Rust advanced vulnerabilities
    • Logic bugs, FFI, Cryptographic issues, Uninitialized & Zeroing memory
  • Attack surface discovery & Auditing tools

Day 2 - Finding Bugs automatically using Fuzzing

  • Fuzzing Introduction and Workflow
  • Coverage-guided Fuzzing in Rust
    • cargo-fuzz, afl-rs, honggfuzz-rs
  • Improve your Fuzzing Process
    • Code coverage, Corpus selection, Corpus minimization
    • Crashes Triaging and Debugging
  • Structure-aware & Grammar-based Fuzzing
  • Other Advanced Testing techniques
    • Symbolic Execution, Formal verification
    • Differential Fuzzing
    • Writing Custom Rust Fuzzers

This courses will give you all the prerequisites to understand what’s a WebAssembly module and its associated virtual machine. At the end of this intensive 4 days, you will be able to reverse statically and dynamically a WebAssembly module, analyze its behavior, create detection rule and search for vulnerabilities and security issues. You will learn which security measures are implemented by the WebAssembly VM to validate and handle exceptions. Finally, you will discover how to find vulnerabilities inside WebAssembly VMs (Web-browsers, Standalone VM) using differents fuzzing techniques.

Along this training, students will deal with a lots of hands-on exercises allowing them to internalize concepts and techniques taught in class.


Day 1 - WebAssembly Reversing

  • Introduction to WebAssembly
  • WebAssembly VM architecture
  • WebAssembly toolchain
  • Writing examples in C/C++/Rust/C#
  • Debugging WebAssembly module
  • WASM binary format (header, sections)
  • WebAssembly Text Format (wat/wast)
  • WebAssembly Instructions set
  • Coding with WASM Text format
  • Reversing WebAssembly module
  • CFG & CallGraph reconstruction
  • DataFlowGraph analysis
  • Browser Addons reversing

Day 2 - Real-life Modules Analysis

  • Modules Instructions analytics/metrics
  • WASM cryptominers analysis
  • Pattern detection signatures (YARA)
  • Taint Tracking
  • Dynamic Binary Instrumentation
  • Bytecode (De)-Obfuscation techniques
  • Static Single Assignment & Decompilation
  • Real-life WASM module analysis
  • Hacking WebAssembly video game

Day 3 - Wasm Modules Vulnerabilities

  • Traps & Exception handling
  • WebAssembly module vulnerabilities
  • Integer/Buffer/Heap Overflows
  • Advanced vulnerabilities (UaF, TOCTOU…)
  • CFI Hijacking
  • Emscripten vulnerabilities
  • Exploitation NodeJS server running wasm module
  • Vulnerability detection (Static & Dynamic)
  • Lifting WASM bytecode
  • Fuzzing WebAssembly modules

Day 4 - Vulnerability Research inside Wasm VM

  • Web-Browsers vulnerabilities analysis (CVEs PoC)
  • WebAssembly VM & Interpreter vulnerabilities
  • WebAssembly JS APIs generation
  • Fuzzing Web-Browsers (Chrome, Firefox, WebKit)
  • WASM module validation mechanism
  • Writing edge case module
  • grammar generation
  • Blockchain VM targets
  • Fuzzing C/C++/Rust/Go WASM project
  • WebAssembly for Security Researcher
  • In-memory fuzzing everything using WebAssembly & Frida

This course will teach you everything you need to know to start fuzzing C/C++ source code using different fuzzing techniques. You will learn how to use famous coverage-guided fuzzing framework (afl, libfuzzer, honggfuzz) and create custom fuzz target harnesses. Then, you will learn how to evaluate and improve your fuzzing results, debug and analyze crashes. Finally, you will discover some other more advanced testing techniques to find in-depth bugs. During the all training, you will target real-life/popular C/C++ libraries.

Along this training, students will deal with a lots of hands-on exercises allowing them to internalize concepts and techniques taught in class.


  • Introduction to Fuzzing
  • Coverage-guided Fuzzing
    • afl / honggfuzz
  • Improve your Fuzzing workflow
    • Corpus/inputs selection
    • Code coverage / Corpus minimization
  • Crashes Analysis
    • Crashes minimization / Bucketing / Debugging / Root cause analysis
  • In-Memory fuzzing
    • libfuzzer / afl / honggfuzz
  • Generation-based fuzzing
    • Structure-aware
    • Grammar-based Fuzzing with dictionaries
  • Other Advanced Testing techniques
    • Symbolic Execution / Concolic Execution
    • Differential Fuzzing

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