CTF

Verified writeups for the CTF machine of Hack The Box

CTF

$ tldr LDAP injection → OTP seed → 7za symlink privesc

·	·
Operating system	Linux
Difficulty	Insane
Vector	Active Directory
IP	10.10.10.122
Retirement date	2019-07-20
Skills	LDAP Injection LDAP Injection - Discovering valid usernames LDAP Injection - Attribute Brute Force [Discovering valid LDAP fields] LDAP Injection - Obtaining OTP Seed Generating One-Time Password (OTP) [stoken] Second Order Ldap Injection Abusing backup - 7za Symbolic Links (Privilege Escalation)

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
Brute Force / Rate-Limit Bypass	HackTricks	Open
Remote Code Execution (RCE)	HackTricks	Open

Related skills worth mastering

Local File Inclusion (LFI) · Remote File Inclusion (RFI) · Shellshock (CVE-2014-6271)

If you liked this machine, try

• Hawk — Linux, Medium
• Monteverde — Windows, Medium
• Reel2 — Windows, Hard
• Altered — Linux, Hard
• Chaos — Linux, Medium

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Last updated: 2026-06-07