RedCross

Verified writeups for the RedCross machine of Hack The Box

RedCross

$ tldr XSS admin cookie → injection RCE → BOF x64 ROP privesc

·	·
Operating system	Linux
Difficulty	Medium
Vector	Binary
IP	10.10.10.113
Retirement date	2019-04-13
Skills	Subdomain Enumeration XSS Injection - Stealing the admin user cookie Injection RCE Abusing Custom Binary - Binary Exploitation Buffer Overflow [x64] [ROP Attacks using PwnTools] [NX Bypass] [ASLR Bypass] [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
Subdomain Enumeration	HackTricks	Open
Buffer Overflow (BoF / ROP)	HackTricks	Open
Remote Code Execution (RCE)	HackTricks	Open
Cross-Site Scripting (XSS)	HackTricks	Open
Cross-Site Scripting (XSS)	PortSwigger	Open

Related skills worth mastering

Local File Inclusion (LFI) · Remote File Inclusion (RFI) · Shellshock (CVE-2014-6271) · SQL Injection · Server-Side Request Forgery

If you liked this machine, try

• Stacked — Linux, Insane
• Buff — Windows, Easy
• Schooled — Linux, Medium
• Undetected — Linux, Medium
• CrossFit — Linux, Insane

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Last updated: 2026-07-13