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Network Mapping

Network Mapping. Identify Live Hosts Determine running Services TCP Port Scanning UDP Port Scanning Banner Grabbing ARP Discovery Identify Perimeter Network (Router / Firewalls) ‏ Tracerouting Scan Default Firewall/Router Ports Perform FIN/ACK Scan Map Router / Firewall Rule-Base.

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Network Mapping

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  1. Network Mapping • Identify Live Hosts • Determine running Services • TCP Port Scanning • UDP Port Scanning • Banner Grabbing • ARP Discovery • Identify Perimeter Network (Router / Firewalls)‏ • Tracerouting • Scan Default Firewall/Router Ports • Perform FIN/ACK Scan • Map Router / FirewallRule-Base • Passive OS Guessing • Active OS Guessing • TCP/IP Stack Fingerprinting • HTTP Packet Analysis • ICMP Packet Analysis • Telnet Handshake Analysis • Host Enumeration • Systems Enumeration Heorot.net

  2. Identify Live Hosts • Project Scope will restrict scan spectrum • Tools: • ping • nmap • hping • traceroute • tpctraceroute Heorot.net

  3. ping Demonstration Identify Live Hosts

  4. nmap Demonstration Identify Live Hosts

  5. hping Demonstration Identify Live Hosts

  6. traceroute Demonstration Identify Live Hosts

  7. tcptraceroute Demonstration Identify Live Hosts

  8. Hands-On Exercise Identify Live Hosts • Tools: • ping • nmap • hping • traceroute • tpctraceroute • Man pages • # man ping • # man nmap • # man traceroute • # man tcptraceroute • Difference between: • TCP • UDP • What is an “ICMP echo request”? • #man icmp Heorot.net

  9. Determine Running Services • TCP Port Scanning • UDP Port Scanning • Banner Grabbing • ARP Discovery Heorot.net

  10. Determine Running Services TCP Port Scanning • Tools: • nmap • netcat • hping Heorot.net

  11. nmap Demonstration Determine Running Services

  12. netcat Demonstration Determine Running Services

  13. hping Demonstration Determine Running Services

  14. Determine Running Services UDP Port Scanning • Tools: • nmap • netcat • hping Heorot.net

  15. nmap Demonstration Determine Running Services

  16. netcat Demonstration Determine Running Services

  17. hping Demonstration Determine Running Services

  18. Determine Running Services Banner Grabbing • Tools: • nmap • amap • netcat • telnet Heorot.net

  19. nmap Demonstration Determine Running Services

  20. amap Demonstration Determine Running Services

  21. netcat Demonstration Determine Running Services

  22. telnet Demonstration Determine Running Services

  23. Determine Running Services ARP Discovery • Tools: • arping • arp + protocol analyzer Heorot.net

  24. Hands-On Exercise Determining Running Services • Tools: • nmap • netcat • hping • amap • netcat • telnet • TCP Services • 5 “open” services • UDP Services • 1 “closed” service (or is it???) • Banners • How many banners can you grab? • Version Information • Application Name • TCP 3-way Handshake Heorot.net

  25. Operating System Guessing Operating System Query • Tools: • httprint • netcat • nmap Heorot.net

  26. httprint Demonstration Operating System Guessing

  27. netcat Demonstration Operating System Guessing

  28. Operating System Guessing ICMP Packet Analysis • Tools: • xprobe Heorot.net

  29. xprobe Demonstration Operating System Guessing

  30. Operating System Guessing Telnet Handshake Analysis • Tools: • nmap • telnetfp Heorot.net

  31. nmap Demonstration Operating System Guessing

  32. Host Enumeration What did you miss? Unknown application? Unusual OS? • Time to read up: • RFC (Request for Comments)‏ • White Papers • Manuals Heorot.net

  33. Hands-On Exercise Operating System Guessing / Host Enumeration • Tools: • xprobe • nmap • RFCs • What they are • Who produces them • RFC 793, 768, 792 • Bonus: 854, 4251 • Super-Geek Bonus: 3766 • White Papers • Linux • Slackware • Documentation • Slackware Heorot.net

  34. Module 4 – Conclusion • Phase II  Controls Assessment  Scheduling • Information Gathering • Network Mapping • Identify Live Hosts • Determine running Services • Identify Perimeter Network (Router / Firewalls)‏ • Passive OS Guessing • Active OS Guessing • Host Enumeration Heorot.net

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