🧠 What Is Ghidra?

Ghidra is a free and open-source reverse engineering tool developed by the NSA. It’s widely used for analyzing binary code, especially in cybersecurity and malware research. It helps you decompile, inspect, and understand how software works—even without source code.

🔍 What Is Ghidra Fuzz (in context)?

Ghidra Fuzz typically refers to using Ghidra in conjunction with GDBFuzz, a fuzzing framework designed for embedded systems. Here’s how they work together:

• GDBFuzz uses hardware breakpoints via the GNU Debugger (GDB) to perform coverage-guided fuzzing on embedded devices.
• Ghidra is used to analyze the firmware binaries of these devices, helping identify functions, memory layouts, and potential targets for fuzzing.
• This combo allows fuzzing of unmodified, uninstrumented firmware, which is often hard to test due to lack of source code or debugging symbols.

You can find the full implementation and examples on GDBFuzz’s GitHub page.

🧬 Bonus: Ghidra’s BSim Fuzzy Matching

Ghidra also has a feature called BSim, introduced in version 11.0, which enables fuzzy matching of functions across binaries. This is useful for:

• Identifying similar functions even if they’ve been compiled differently.
• Reversing stripped firmware where symbols are missing.
• Comparing unknown functions with known libraries using similarity scores.

You can read more about BSim in this guide from Pen Test Partners.