---
id: 4367
title: "Heap exploitation, glibc internals and nifty tricks."
source_domain: blog.quarkslab.com
source_url: "https://blog.quarkslab.com/heap-exploitation-glibc-internals-and-nifty-tricks.html"
published_at: "2024-07-29T22:00:00Z"
tags: ["ctf", "writeup", "heap-exploitation", "glibc", "pwn", "hitcon"]
phying_url: "https://phying.com/item/4367"
lang: en
---

# Heap exploitation, glibc internals and nifty tricks.

## Summary

A writeup of the setjmp heap challenge from HITCON CTF 2024 qualifiers: glibc malloc internals, plus exploitation tricks including forcing a large allocation via scanf to leak a libc pointer.

## Intelligence Metadata

- **Sources:** blog.quarkslab.com
- **Published:** 2024-07-29T22:00:00Z
- **Original:** https://blog.quarkslab.com/heap-exploitation-glibc-internals-and-nifty-tricks.html
- **Phying News:** https://phying.com/item/4367