October

Verified writeups for the October machine of Hack The Box

October

$ tldr October CMS upload → BOF ret2libc x32 (ASLR bypass)

·	·
Operating system	Linux
Difficulty	Medium
Vector	Binary
IP	10.10.10.16
Retirement date	2019-03-26
Skills	Abusing October CMS (Upload File Vulnerability) Buffer Overflow - Bypassing ASLR + Ret2libc (x32 bits) Buffer Overflow - Ret2libc without ASLR (x32 bits EXTRA)

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
Buffer Overflow (BoF / ROP)	HackTricks	Open

If you liked this machine, try

• Jail — Linux, Insane
• Chatterbox — Windows, Medium
• Safe — Linux, Easy
• Buff — Windows, Easy
• Enterprise — Linux, Medium

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Last updated: 2026-06-07