Lab Description

This lab focuses on buffer overflow vulnerabilities, a critical security flaw where excess data written to a buffer can overwrite adjacent memory, often allowing attackers to control program execution. You'll explore these issues in a 32-bit Linux environment using a combination of custom C programs, fuzzing scripts, and the EDB Debugger.

You'll begin by installing and configuring a debugger in Ubuntu, then move on to fuzz a vulnerable TCP server written in C. By analyzing crash points and memory registers, particularly the Extended Instruction Pointer (EIP), you’ll learn how attackers can redirect program flow. The lab will also guide you through Address Space Layout Randomization (ASLR) to understand its impact on exploitation techniques. As the exercises progress, you'll handle bad characters in payload bytes that can disrupt exploit delivery and refine your attack to ensure clean shellcode execution. This hands-on environment will enhance your knowledge of exploit development, memory analysis, and secure software practices.

What You Will Learn

Program Curriculum

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