ROP Chain Builder

What problem does it solve?

This Skill automates the process of building return-oriented programming (ROP) chains, which are used to bypass DEP/NX (Data Execution Prevention/Non-Executable) protections in software, enabling exploitation.

Core Features & Use Cases

• Gadget Discovery: Identifies and lists ROP gadgets within a binary for use in constructing ROP chains.
• Chain Construction: Provides step-by-step instructions for building ROP chains for common operations like system("/bin/sh") and execve("/bin/sh", NULL, NULL).
• ASLR Bypass: Offers techniques for bypassing Address Space Layout Randomization (ASLR) using info leaks and partial overwrites.
• Stack Alignment: Ensures proper stack alignment before making system calls to avoid crashes.
• Advanced Techniques: Includes advanced ROP techniques like stack pivot and frame faking for more complex scenarios.
• Chain Testing: Provides guidelines for local testing and debugging of ROP chains.
• Automation: Offers a Python-based gadget database and chain builder algorithm for further automation.
• Use Case: A penetration tester needs to exploit a vulnerable application that has DEP/NX protections enabled. This Skill can help automate the ROP chain construction process, saving time and reducing manual errors.

Quick Start

Build a ROP chain to execute "/bin/sh" on the target binary using the ROP Chain Builder skill.