SCLAFREEIntermediate

StackCracker Certified Linux Administrator

Prove you can pwn a Linux machine under real exam conditions.

Duration
1 Hour
Flags
5 flags
Pass mark
4/5 flags
Price
Free
Format
Practical CTF
Certificate
Instant

Who is this for?

→Aspiring penetration testers preparing for OSCP or eJPT
→CTF players who want a recognised credential
→Developers and sysadmins who want to understand Linux security
→Anyone who wants to prove hands-on Linux skills to employers

Skills tested

✓Linux enumeration and file system navigation
✓SUID binary exploitation
✓GPG encryption and decryption
✓Cron job abuse for privilege escalation
✓Password cracking with John the Ripper
✓Lateral movement between user accounts

What the exam covers

▸Chained 5-flag investigation scenario
▸Real privilege escalation techniques
▸No hints — pure enumeration skills tested
▸Story-based CTF — Operation CyberCorp

Why StackCracker?

◎
Real environment
Live vulnerable Linux machine — not a simulator
▸
Instant certificate
Pass the threshold and your cert is generated in seconds
⊕
Verifiable credential
Unique URL anyone can verify — share on LinkedIn
✦
Completely free
No payment required. Take the exam at no cost.
COMPLETELY FREE

Ready to get certified?

Free lab — request access and we'll provision your personal lab environment once approved.