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Introduction:
The cybersecurity landscape is evolving rapidly, with bug bounty programs and ethical hacking becoming critical skills for IT professionals. Wesley Thijs’ limited-time summer sale offers an 80% discount on premium hacking courses, covering everything from automated reconnaissance to real-world exploit development—perfect for aspiring pentesters and security researchers.
Learning Objectives:
- Master bug bounty hunting techniques with 260+ lessons.
- Automate broad-scope reconnaissance for efficient vulnerability discovery.
- Practice in realistic lab environments to sharpen exploitation skills.
1. Automating Recon with Subdomain Enumeration
Command (Linux):
subfinder -d example.com -o subdomains.txt && httpx -l subdomains.txt -status-code -title -tech-detect -o live_urls.txt
What It Does:
- Subfinder discovers subdomains of
example.com. - Httpx checks which subdomains are live, extracting HTTP status codes, page titles, and technologies.
How to Use:
1. Install tools via `go install github.com/projectdiscovery/subfinder/v2/cmd/subfinder@latest`.
- Run the command to save results for further analysis.
2. Exploiting XSS Vulnerabilities
Payload (Web Security):
<script>alert(document.cookie)</script>
What It Does:
Tests for Cross-Site Scripting (XSS) vulnerabilities by executing JavaScript in input fields.
How to Use:
- Inject the payload into search bars, forms, or URL parameters.
- If a popup appears, the site is vulnerable.
3. Windows Privilege Escalation Check
Command (Windows CMD):
whoami /priv && systeminfo | findstr /B /C:"OS Name" /C:"OS Version"
What It Does:
- Lists current user privileges (e.g.,
SeDebugPrivilege). - Displays OS details to identify unpatched vulnerabilities.
How to Use:
Run in Command Prompt to audit misconfigurations for local privilege escalation.
4. Cloud Hardening: Restricting S3 Buckets
AWS CLI Command:
aws s3api put-bucket-policy --bucket my-bucket --policy file://policy.json
Sample `policy.json`:
{
"Version": "2012-10-17",
"Statement": [{
"Effect": "Deny",
"Principal": "",
"Action": "s3:",
"Resource": "arn:aws:s3:::my-bucket/",
"Condition": {"NotIpAddress": {"aws:SourceIp": ["192.0.2.0/24"]}}
}]
}
What It Does:
Blocks all S3 access except from whitelisted IPs.
5. Mitigating SQLi with Parameterized Queries
Python (Flask) Snippet:
cursor.execute("SELECT FROM users WHERE username = %s", (user_input,))
What It Does:
Prevents SQL injection by sanitizing inputs.
6. Network Scanning with Nmap
Command (Linux):
nmap -sV -T4 -p- --script vuln 192.168.1.1
What It Does:
- Scans all ports (
-p-), detects services (-sV), and runs vulnerability scripts.
7. API Security: JWT Token Testing
Tool:
jwt_tool eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.xyz -T
What It Does:
Tests JSON Web Tokens for weak algorithms or tampering.
What Undercode Say:
- Key Takeaway 1: Automation is critical for scaling bug bounty efforts. Tools like Subfinder and Nmap save hours of manual work.
- Key Takeaway 2: Real-world labs bridge the gap between theory and实战 (practical combat), as seen in Wesley’s course labs (Free Labs).
Prediction:
As AI-driven attacks rise, demand for ethical hackers with automation skills will surge. Courses like Wesley’s—focused on practical exploits—will become essential for defenders.
🔗 Enroll Now: Bug Bounty Masterclass (Use code SUMMERLOVE for 80% off).
🎯Let’s Practice For Free:
IT/Security Reporter URL:
Reported By: Wesley Thijs – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
