---
title: "Jacob Strieb - Red Balloon Security"
description: "This is the bio for Jacob Strieb. It is a test to see how user bios will display on blog posts."
language: "en-US"
canonical_url: "https://xckd6kzuxte054o.onstatic.studio/author/jacob/"
source_url: "https://xckd6kzuxte054o.onstatic.studio/author/jacob/"
content_type: "text/markdown"
---

# Author: Jacob Strieb

This is the bio for Jacob Strieb. It is a test to see how user bios will display on blog posts.







## [Hacking Randomized Linux Kernel Images at the DEF CON 33 Car Hacking Village](https://xckd6kzuxte054o.onstatic.studio/2025-def-con-chv-ctf/)

[![Disassembly view highlighting CodeRegion 0x402000–0x402028 and ELF section .shellcode during firmware analysis.](https://xckd6kzuxte054o.onstatic.studio/wp-content/uploads/2025/08/image7_2025-08-20_02_24_49.634949.png-1024x368.png)](https://xckd6kzuxte054o.onstatic.studio/2025-def-con-chv-ctf/)

Red Balloon Security’s DEF CON 33 Car Hacking Village CTF write-up: unpacking firmware, cracking a repeating-key XOR, and exploiting a buffer overflow on ARM64 to ROP into mprotect() and execute shellcode—despite randomized Linux syscall numbers.





## [Hacking Secure Software Update Systems at the DEF CON 32 Car Hacking Village](https://xckd6kzuxte054o.onstatic.studio/dc32-car-hacking-ctf/)

[![](https://xckd6kzuxte054o.onstatic.studio/wp-content/uploads/2024/08/defcon-banner-e1724022044824-1024x374.jpg)](https://xckd6kzuxte054o.onstatic.studio/dc32-car-hacking-ctf/)

Read about Red Balloon’s CTF at DEF CON 32’s Car Hacking Village, highlighting secure software updates.