Lab Description

This lab offers an in-depth look at format string vulnerabilities, a common and dangerous flaw in C programs where unchecked user input is passed to functions like printf() without proper formatting. In 32-bit Linux systems, these vulnerabilities are particularly severe due to the predictable memory structure, which attackers can exploit to read from or write to arbitrary memory addresses.

Throughout the exercises, you'll identify vulnerable code, craft format string attacks to expose memory addresses or overwrite values, and understand the mechanics of memory layout and stack manipulation. You’ll also simulate real-world exploitation scenarios and observe how these flaws can lead to information leakage, arbitrary code execution, or application crashes.

The lab concludes by reinforcing secure coding practices, such as validating user input and avoiding direct usage of user-supplied strings in formatted output. Whether you’re a security analyst, developer, or student, this lab equips you with both offensive and defensive skills necessary for building secure applications.

What You Will Learn

Program Curriculum

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