---
title: "Discussion on \"BrunnerCTF : Bink Ink Writeup\" | Hashnode"
description: "Discussion on \"BrunnerCTF : Bink Ink Writeup\". BrunnerCTF Bink Ink walkthrough covering proxy access, path traversal, arbitrary file write, sudo abuse, SquashFS payloads, and root escalation."
url: "https://hashnode.com/posts/brunnerctf-bink-ink-writeup/6a8b0d7941d4c4c3387c3d32"
---

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# [BrunnerCTF : Bink Ink Writeup](https://exploitnotes.hashnode.dev/brunnerctf-bink-ink-writeup?utm_source=hashnode&utm_medium=feed)

BrunnerCTF Bink Ink walkthrough covering proxy access, path traversal, arbitrary file write, sudo abuse, SquashFS payloads, and root escalation.

Aug 23 · 8 min read · exploitnotes.hashnode.dev  
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-   [#brunnerctf](https://hashnode.com/tag/brunnerctf)
-   [#bink-ink](https://hashnode.com/tag/bink-ink)
-   [#brunnerctf-walkthrough](https://hashnode.com/tag/brunnerctf-walkthrough)
-   [#ctf](https://hashnode.com/tag/ctf)
-   [#boot2root](https://hashnode.com/tag/boot2root)
-   [#web-exploitation](https://hashnode.com/tag/web-exploitation)
-   [#privilege-escalation](https://hashnode.com/tag/privilege-escalation)
-   [#path-traversal](https://hashnode.com/tag/path-traversal)
-   [#arbitrary-file-write](https://hashnode.com/tag/arbitrary-file-write)
-   [#sudo](https://hashnode.com/tag/sudo)
-   [#squashfs](https://hashnode.com/tag/squashfs)
-   [#linux](https://hashnode.com/tag/linux)
-   [#docker](https://hashnode.com/tag/docker)
-   [#ctf-writeup](https://hashnode.com/tag/ctf-writeup)

## Written by

[Yogeshwar Peela](https://hashnode.com/@exploitnotes)

@exploitnotes · Vishakapatnam, India

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

I write detailed writeups on HackTheBox, PicoCTF and other CTF challenges. Passionate about web exploitation, Active Directory attacks and ethical hacking

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