1. InfoconDB
  2. DEF CON
  3. DEF CON 31 (2023)
  4. Introduction to Exploit Development

Introduction to Exploit Development

Presented at DEF CON 31 (2023), Aug. 12, 2023, 2 p.m. (240 minutes)

Learn how to take control of Windows and Linux servers running vulnerable software, in a hands-on CTF-style workshop. We begin with easy command injections and SQL injections, and proceed through binary exploits including buffer overflows on the stack and the heap, format string vulnerabilities, and race conditions. We will exploit 32-bit and 64-bit Intel and ARM systems, and software in PHP, Python, C++, and DOT NET. We will examine modern Windows defenses in detail, including ASLR, DEP, stack cookies, and SEHOP. We will also write Rust programs and see how they prevent memory corruption vulnerabilities. Previous experience with C and assembly language is helpful but not required. Participants will need a laptop that can run VMware or VirtualBox virtual machines. All materials and challenges are freely available at samsclass.info, and will remain available after the workshop ends. Skill Level: Intermediate Prerequisites for students: - Familiarity with C programming and assembly language is helpful, but not essential. Materials or Equipment students will need to bring to participate: - A laptop capable of running a virtual machine in VMware or VirtualBox.

Presenters:

  • Sam Bowne - Founder at Infosec Decoded, Inc
    Sam Bowne has been teaching computer networking and security classes at City College San Francisco since 2000, and is the founder of Infosec Decoded, Inc. He has given talks and hands-on trainings at Black Hat USA, RSA, DEF CON, DEF CON China, HOPE, and many other conferences. Credentials: PhD, CISSP, DEF CON Black Badge Co-Winner
  • Irvin Lemus
    Irvin Lemus, CISSP is a Cyber Range Engineer at By Light IT Professional Services, training military personnel through international cyber security exercises. Irvin has been in the field since 2006, involved with cybersecurity competitions since 2015 as a trainer, coach, and mentor. He also has taught IT and Cybersecurity courses at Coastline and Cabrillo Colleges. He is the BACCC Cyber Competitions Regional Coordinator, Board member at Pacific Hackers and is a speaker at DEFCON. He describes himself as, "A professional troublemaker who loves hacking all the things."
  • Elizabeth Biddlecome
    Elizabeth Biddlecome is a consultant and instructor, delivering technical training and mentorship to students and professionals. She leverages her enthusiasm for architecture, security, and code to design and implement comprehensive information security solutions for business needs. Elizabeth enjoys wielding everything from soldering irons to scripting languages in cybersecurity competitions, hackathons, and CTFs.
  • Kaitlyn Handelman - Offensive Security Engineer at Amazon
    Kaitlyn Handelman is an offensive security engineer at Amazon. Her focus is cybersecurity in space. In addition to traditional penetration testing, Kaitlyn works on physical devices and RF signals. In her free time, she enjoys ham radio, astronomy, and her cat, Astrocat.

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