Beep

Verified writeups for the Beep machine of Hack The Box

Beep

$ tldr Elastix LFI → varios paths a root

·	·
Operating system	Linux
Difficulty	Easy
Vector	Web
IP	10.10.10.7
Retirement date	2017-03-18
Skills	Elastix 2.2.0 Exploitation - Local File Inclusion (LFI) Information Leakage Vtiger CRM Exploitation - Abusing File Upload (1st way) [RCE] Shellshock Attack (2nd way) [RCE]

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
Local File Inclusion (LFI)	HackTricks	Open
Local File Inclusion (LFI)	PayloadsAllTheThings	Open
Information Leakage	HackTricks	Open
File Upload Vulnerabilities	PortSwigger	Open
Shellshock (CVE-2014-6271)	HackTricks	Open
Shellshock (CVE-2014-6271)	Exploit-DB	Open
Elastix LFI	Exploit-DB	Open
Remote Code Execution (RCE)	HackTricks	Open

Related skills worth mastering

Remote File Inclusion (RFI)

If you liked this machine, try

• OpenSource — Linux, Easy
• Talkative — Linux, Hard
• Bank — Linux, Easy
• Monitors — Linux, Hard
• Frolic — Linux, Easy

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Last updated: 2026-06-15