Injecting 0x113 — Format String Binary Exploitation

Injecting 0x113 — Format String Binary Exploitation

Recently, I had fun exploring format string binary exploitation. I want to share a step-by-step walkthrough on it and I hope everyone finds it interesting. This binary used specific flags during compilation and execution, as shown below.

Let’s start by disassembling the main function. It calls three user-defined functions: validate_params, bazinga, and that_fyi_was_sarcasm.

validate_params → This function validates the number of parameters passed to the program. 0x8048618 <+3> compares the …

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