CyberSec Notes
  • Bienvenida
    • CyberSec Notes
  • Network Services
    • Port 21 - FTP
    • Port 22 - SSH
    • Port 23 - Telnet
    • Port 25 - SMTP
    • Port 53 - DNS
      • Deploy DNS Server with BIND
    • Port 80/443 - HTTP/HTTPS
      • Wordpress
      • CMS Made Simple (CMSMS)
    • Port 88 - Kerberos
    • Port 386, 636, 3268, 3269 - LDAP
    • Port 445 - SMB
    • Port 1521,1522-1529 - Oracle TNS Listener
    • Port 3128 - Squid
    • Port 5985, 5986 - WinRM
  • Command && Control
    • Sliver C2 [in progress]
  • Ataques en Entornos Windows
    • MalDev
      • AV Evasion
        • Function call obfuscation
      • Code Samples
        • Shellcode Execution C#
        • Shellcode Execution C++
        • Stager HTTP C#
        • Stager HTTP C++
        • Process Inyection C++
        • Process Inyection C#
        • XOR Encrypt C++
    • Directorio Activo
      • Spriying
      • Autenticacion Net-NTLMv2 y tipos de hashes
        • Pass the Hash
        • SMB Relay
      • Autenticación Kerberos
        • Extensiones del protocolo Kerberos (SPNs & PACs)
        • AS_REP Roasting
        • Kerberoasting
        • Silver Ticket Attack
        • Golden Ticket Attack
      • DCSync
      • Mimikatz
      • BloodHound
      • Privilege Escalation
        • PS Credentials in XML format
      • Utils
    • Amsi Bypass
    • Buffer Overflow
      • Stack Based 32 bits [in progress]
        • Windows SLMail 5.5
  • Ataques en Entornos Linux
    • Privilege escalation [in progress]
    • MalDev
      • Simple Reverse Shell
    • Buffer Over Flow
      • Stack Based 32 bits
        • Linux, Vulnerable functions in C programs
    • Persistencia
  • General
    • Host Discovery
    • Reverse Shells Cheet Sheet
    • Pivoting
      • Chisel
      • Port Forwarding
      • Nmap con pivoting
    • Google Dorks [in progress]
    • Denial of Service (DoS)
      • Low and Slow
    • Docker
  • Pentesting Web
    • XML External Entity Injection(XXE)
      • Portswigger Lab #1: Retrieve Files
      • Portswigger Lab #2: Perform SSRF
      • Portswigger Lab #6: Blind XXE to retrieve data via error messages
    • Open Redirect
    • LFI
      • Log Poisoning (Apache, SSH y SMPT)
  • Wireless Pentesting
    • Pre Connection Attacks
      • WEP
      • WPA/WPA2
    • Post Connection Attacks
      • ARP Spoof
    • Fake AP for Captive Portal
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On this page
  • Enumeration
  • Anonymous login
  • Brute Force
  • Password Sniffing
  1. Network Services

Port 21 - FTP

FTP (File transfer protocol) es un protocolo orientado a la transferencia de archivos entre dos máquinas, con una arquitectura cliente-servidor. Debido a que busca la máxima velocidad de trasnferencia, este protocolo no cuenta con mecanismos de seguridad, por lo que la conexión viaja en texto plano a través de la red a menos que se le configure un certificado SSL.

Enumeration

# Basic info
nmap -p21 -sCV -Pn <TARGET-IP>

# Banner grabbing
nc -vn <IP> 21
openssl s_client -connect <IP or domain-name>:21 -starttls ftp #Get certificate if any

Anonymous login

Permite la transferencia de archivos entre un cliente que no cuente con credenciales para acceder al servidor.

ftp <IP> [port]
Name: anonymous
Password: anonymous

Brute Force

hydra -l <USERNAME> -P <WORDLIST> ftp://<TARGET-IP> [-t <THREADS> -s <PORT>]
ncrack -u <USERNAME> -P <WORDSLIST> <TARGET-IP> [-T5]
medusa -u <USERNAME> -P wordlist.txt -h <TARGET-IP> -M ftp [-L <nthreads>]

Password Sniffing

DSNIFF

dnsiff -i <NETWORK_INTERFACE>

Wireshark

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Last updated 1 year ago