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cns:laboratoare:laborator-01 [2012/10/15 21:10] traian.popeea [Port Scanning - Tasks] |
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| - | ====== Lab 1 - Collecting Information and Scanning ====== | ||
| - | The lab will be run on Linux. | ||
| - | |||
| - | ===== Collecting Information ===== | ||
| - | |||
| - | * Passive activity - no interaction with the target | ||
| - | * Useful information: | ||
| - | * External IP addresses | ||
| - | * Employee phone numbers and e-mails | ||
| - | * Employee profiles (Facebook, Google+, LinkedIn, ...) | ||
| - | * Active hosts and services (internal penetration testing) | ||
| - | * Techniques: | ||
| - | * Google hacking | ||
| - | * Whois and DNS queries | ||
| - | * Using public databases: Netcraft.com , zone-h.com | ||
| - | * Web site inspection | ||
| - | * Network sniffing | ||
| - | |||
| - | ==== Google Hacking ==== | ||
| - | |||
| - | * ''site:'' restricts the results of the query to the specified site: ''site:pub.ro "error in your SQL syntax"'' | ||
| - | * ''intitle:'' / ''allintitle:'' - the keywords cand be found in the page title: ''intitle:"index of" intext:"parent directory"'' | ||
| - | * ''filetype:'' specifies the file extension: ''filetype:doc site:pub.ro'' | ||
| - | * Explicit Inclusion: ''+'': ''+123456 "yahoo.com" site:pastebin.com'' | ||
| - | * Explicit Exclusion: ''-'': ''+virus –biology'' | ||
| - | * More at: [[http://www.google.com/help/operators.html]] and [[http://www.hackersforcharity.org/ghdb/]] | ||
| - | |||
| - | ==== Google Hacking - Tasks ==== | ||
| - | |||
| - | Choose a site: xyz | ||
| - | |||
| - | * Search for all xls files that can be accesed on the xyz site | ||
| - | * Check if directory browsing is possible on the xyz site | ||
| - | * Search for subdomains of xyz | ||
| - | * Search for ''mysql dump filetype:sql''. What is the result? | ||
| - | * Search for live webcams: ''inurl:/view/index.shtml'' ''inurl:viewerFrame?Mode='' | ||
| - | |||
| - | ==== Whois Queries ==== | ||
| - | |||
| - | Useful information: | ||
| - | |||
| - | * DNS servers | ||
| - | * IP addresses | ||
| - | * Location and address | ||
| - | * Contact persons (name, phone, e-mail) | ||
| - | * Examples: | ||
| - | * ''whois cisco.com'' | ||
| - | * ''whois 128.107.241.185'' | ||
| - | |||
| - | ==== Whois Queries - Tasks ==== | ||
| - | |||
| - | * Identify the IP addresses and location of xyz. | ||
| - | |||
| - | ==== DNS Queries ==== | ||
| - | |||
| - | * Tools: dig, host, nslookup | ||
| - | * Query types: A, NS, MX, PTR, AXFR | ||
| - | * Examples: | ||
| - | * E-mail servers: | ||
| - | * ''dig pub.ro mx'' | ||
| - | * ''host –t mx pub.ro'' | ||
| - | * Reverse DNS: | ||
| - | * ''dig @ns1.roedu.net ptr 60.166.85.141.in-addr.arpa'' | ||
| - | * ''host 141.85.166.60'' | ||
| - | |||
| - | ==== DNS Queries - Tasks ==== | ||
| - | |||
| - | * What are the DNS servers for xyz? | ||
| - | * For each of the previous servers, request a zone transfer (type=axfr) | ||
| - | |||
| - | ===== Scanning ===== | ||
| - | |||
| - | * Activities involving interaction with the target | ||
| - | * Repeated queries in order to obtain different information: | ||
| - | * Live hosts | ||
| - | * Open ports | ||
| - | * Service versions | ||
| - | * Operating systems | ||
| - | * Network shares | ||
| - | * Local users | ||
| - | |||
| - | ==== Host Discovery ==== | ||
| - | |||
| - | * ARP Ping | ||
| - | * ICMP Ping | ||
| - | * TCP SYN Ping | ||
| - | * UDP Ping | ||
| - | |||
| - | ==== Port Scanning ==== | ||
| - | |||
| - | * SYN scan (half-connect) | ||
| - | * ''nmap -sS -p 445 192.168.1.1'' | ||
| - | * ''hping -S -p 445 192.168.1.1'' | ||
| - | * Connect scan (complete 3-way handshake) | ||
| - | * ''nmap -sT -p 445 192.168.1.1'' | ||
| - | * ''telnet 192.168.1.1 445'' | ||
| - | * ''netcat 192.168.1.1 445'' | ||
| - | * ACK scan (checks if a port is filtered by a firewall, does not offer any information regarding the port (open/closed)) | ||
| - | * ''nmap –sA –p 445 192.168.1.1'' | ||
| - | * UDP scan | ||
| - | * ''nmap –sU –p 53 192.168.1.1'' | ||
| - | |||
| - | ==== Nmap options ==== | ||
| - | |||
| - | * Target specification | ||
| - | * ''nmap 192.168.1-254.1-254'' | ||
| - | * ''nmap 192.168.0.0/16'' | ||
| - | * ''nmap –iL iplist.txt'' | ||
| - | * Port specification | ||
| - | * ''nmap –p21,22,80,445 192.168.1.1'' | ||
| - | * ''nmap –p1-65535 192.168.1.1'' | ||
| - | * default: 1660 ports | ||
| - | * Output file: | ||
| - | * ''nmap –oN output.txt 192.168.1.1'' | ||
| - | * Scan speed | ||
| - | * ''nmap –T<0-5> 192.168.1.1'' (larger number is faster) | ||
| - | * Service version | ||
| - | * ''nmap –sV 192.168.1.1'' | ||
| - | * Operating System detection | ||
| - | * ''nmap –O 192.168.1.1'' | ||
| - | |||
| - | ==== Port Scanning - Tasks ==== | ||
| - | |||
| - | * Using a single nmap command scan the entire vmnet8 subnet and determine: | ||
| - | * Active hosts | ||
| - | * Open ports | ||
| - | * Service versions | ||
| - | * Operating system | ||
| - | * The results will be saved in an output file | ||
