---
title: "Discussion on \"KDNU-3B: Binary Exploitation CTF Writeup\" | Hashnode"
description: "Discussion on \"KDNU-3B: Binary Exploitation CTF Writeup\". Detailed binary exploitation walkthrough of the KDNU-3B navigation firmware, showing how control flow is redirected into nav_core to extract the hidden flag"
url: "https://hashnode.com/posts/kdnu-3b-binary-exploitation-ctf-writeup/6956008051f4de46890bf0be"
---

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# [KDNU-3B: Binary Exploitation CTF Writeup](https://ctfs.hashnode.dev/kdnu-3b-binary-exploitation-ctf-writeup?utm_source=hashnode&utm_medium=feed)

Detailed binary exploitation walkthrough of the KDNU-3B navigation firmware, showing how control flow is redirected into nav\_core to extract the hidden flag

Jan 1 · 5 min read · ctfs.hashnode.dev  
Updated Jan 4  
Read the article

-   [#control-flow-hijacking](https://hashnode.com/tag/control-flow-hijacking)
-   [#firmware-reverse-engineering](https://hashnode.com/tag/firmware-reverse-engineering)
-   [#binary-exploitation](https://hashnode.com/tag/binary-exploitation)
-   [#ctf](https://hashnode.com/tag/ctf)
-   [#ctf-writeup](https://hashnode.com/tag/ctf-writeup)
-   [#capturetheflag](https://hashnode.com/tag/capturetheflag)
-   [#static-analysis](https://hashnode.com/tag/static-analysis)
-   [#reverse-engineering](https://hashnode.com/tag/reverse-engineering)
-   [#adventofctf](https://hashnode.com/tag/adventofctf)

## Written by

[Null Siryn](https://hashnode.com/@nullsiryn)

@nullsiryn · Uttar Pradesh, India

  
[View profile](https://hashnode.com/@nullsiryn)

Read it. Don't Overthink it.

Barely Tame CTF Player. Debugging Addict. Worshipper of Wi-Fi Signals. Human? Depends on the Ping.

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