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HackTheBox Fortress: Jet — Crypto, Race Conditions & SSRF Writeup

Full walkthrough of the HackTheBox Jet Fortress. Covers AES-ECB ciphertext block swap for admin token forgery, TOCTOU race condition on balance transfer, SSRF to internal admin panel via webhook tester, and OS command injection in ping diagnostic.

lazyhackers

Mar 29, 2026 · 25 min read · 0 views

#AES #Command Injection #Cryptography #CTF #Fortress #HackTheBox #Jet #Race Condition #SSRF #Web Security

Jet Fortress

HackTheBox

Linux Hard Fortress

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Vulnlab: Baby — Medium (Linux) 6 · 1m Vulnlab: Watcher — Medium (Linux) 5 · 1m Vulnlab: Escape — Easy (Windows) 3 · 1m HackTheBox Pro Lab: Heron 3 · 1m

Published	Mar 29, 2026
Updated	Mar 29, 2026
Reading time	25 min
Views	0
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