Falafel

Verified writeups for the Falafel machine of Hack The Box

Falafel

$ tldr SQLi substring → PHP type juggling 0e → video/disk group privesc

·	·
Operating system	Linux
Difficulty	Hard
Vector	Web
IP	10.10.10.73
Retirement date	2018-06-23
Skills	Information Leakage SQL Injection (SQLI) - Abusing substring function Obaining user passwords [Python Scripting] PHP Type Juggling Exploitation (0e hash collision) Abusing File Upload - File name truncation (Bordering the limits) Abusing video group - Taking a screenshot to view a password [GIMP && Playing with virtual_size] Abusing disk group to read the flag [debugfs] [Privilege Escalation]

Writeups

Language	Author	Format	Link
🇪🇸 ES	S4vitar	Vídeo	Open
🇬🇧 EN	0xdf	Texto	Open
🇬🇧 EN	IppSec	Vídeo	Open

Skill resources

Curated documentation for each technique listed in the Skills column above. Sources: HackTricks, GTFOBins, PortSwigger, etc.

Skill	Source	Link
Information Leakage	HackTricks	Open
SQL Injection	HackTricks	Open
SQL Injection	PortSwigger	Open
Type Juggling / Confusion	PortSwigger	Open
File Upload Vulnerabilities	PortSwigger	Open

Related skills worth mastering

Remote Code Execution (RCE) · Cross-Site Scripting (XSS)

If you liked this machine, try

• Validation — Linux, Easy
• Altered — Linux, Hard
• Phoenix — Linux, Hard
• Talkative — Linux, Hard
• Zetta — Linux, Hard

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Last updated: 2026-06-07