Shocker

Verified writeups for the Shocker machine of Hack The Box

$ tldr Shellshock (CVE-2014-6271) en CGI → sudo perl

·	·
Operating system	Linux
Difficulty	Easy
Vector	Linux privesc
IP	10.10.10.56
Retirement date	2017-09-30
Skills	ShellShock Attack (User-Agent) Abusing Sudoers Privilege (Perl) EXTRA: Creamos nuestro propio CTF en Docker que contemple ShellShock

Writeups

Language	Author	Format	Link
🇪🇸 ES	S4vitar	Vídeo	Open
🇪🇸 ES	El Pingüino de Mario	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
Shellshock (CVE-2014-6271)	HackTricks	Open
Shellshock (CVE-2014-6271)	Exploit-DB	Open

Related skills worth mastering

Remote Code Execution (RCE)

If you liked this machine, try

• Ariekei — Linux, Insane
• Beep — Linux, Easy

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Comments & tips

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Last updated: 2026-06-07