cybersecurite:pentest:port_scan:nmap []

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====== Cybersécurité ======

===== Nmap Cheat sheet =====
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//__source__ : Nathan House (Station X)//
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==== Target Specification ====
^SWITCH	^EXAMPLE ^DESCRIPTION ^
| |''nmap 192.168.1.1'' |Scan a single IP |
| |''nmap 192.168.1.1 192.168.2.1''	|Scan specific IPs |
| |''nmap 192.168.1.1-254''	|Scan a range |
| |''nmap scanme.nmap.org''	|Scan a domain |
| |''nmap 192.168.1.0/24''	|Scan using CIDR notation |
|-iL	|''nmap -iL targets.txt''	|Scan targets from a file |
|-iR	|''nmap -iR 100''	|Scan 100 random hosts |
|–exclude	|''nmap –exclude 192.168.1.1''	|Exclude listed hosts |
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==== Scan Techniques ====
^SWITCH	^EXAMPLE	^DESCRIPTION ^
|-sS	|''nmap 192.168.1.1 -sS'' |TCP SYN port scan (Default) |
|-sT	|''nmap 192.168.1.1 -sT'' |TCP connect port scan (Default without root privilege) |
|-sU	|''nmap 192.168.1.1 -sU'' |UDP port scan |
|-sA	|''nmap 192.168.1.1 -sA'' |TCP ACK port scan |
|-sW	|''nmap 192.168.1.1 -sW'' |TCP Window port scan |
|-sM	|''nmap 192.168.1.1 -sM'' |TCP Maimon port scan |
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==== Host Discovery ====
^SWITCH	^EXAMPLE	^DESCRIPTION ^
|-sL	|''nmap 192.168.1.1-3 -sL''	|No Scan. List targets only |
|-sn	|''nmap 192.168.1.1/24 -sn''	|Disable port scanning. Host discovery only. |
|-Pn	|''nmap 192.168.1.1-5 -Pn''	|Disable host discovery. Port scan only. |
|-PS	|''nmap 192.168.1.1-5 -PS22-25,80''	|TCP SYN discovery on port x. Port 80 by default |
|-PA	|''nmap 192.168.1.1-5 -PA22-25,80''	|TCP ACK discovery on port x. Port 80 by default |
|-PU	|''nmap 192.168.1.1-5 -PU53''	|UDP discovery on port x. Port 40125 by default |
|-PR	|''nmap 192.168.1.1-1/24 -PR''	|ARP discovery on local network |
|-n	|''nmap 192.168.1.1 -n''	|Never do DNS resolution |
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==== Port Specification ====
^SWITCH	^EXAMPLE	^DESCRIPTION ^
|-p	|''nmap 192.168.1.1 -p 21''		|Port scan for port x	|
|-p	|''nmap 192.168.1.1 -p 21-100''		|Port range	|
|-p	|''nmap 192.168.1.1 -p U:53,T:21-25,80''		|Port scan multiple TCP and UDP ports	|
|-p	|''nmap 192.168.1.1 -p-''		|Port scan all ports	|
|-p	|''nmap 192.168.1.1 -p http,https''		|Port scan from service name	|
|-F	|''nmap 192.168.1.1 -F''		|Fast port scan (100 ports)	|
|–top-ports	|''nmap 192.168.1.1 –top-ports 2000''		|Port scan the top x ports	|
|-p-65535	|''nmap 192.168.1.1 -p-65535''		|Leaving off initial port in range makes the scan start at port 1	|
|-p0-	|''nmap 192.168.1.1 -p0-''		|Leaving off end port in range makes the scan go through to port 65535	|
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==== Service and Version Detection ====
^SWITCH	^EXAMPLE	^DESCRIPTION ^
|-sV	|''nmap 192.168.1.1 -sV''	|Attempts to determine the version of the service running on port|
|-sV –version-intensity	|''nmap 192.168.1.1 -sV –version-intensity 8''	|Intensity level 0 to 9. Higher number increases possibility of correctness|
|-sV –version-light	|''nmap 192.168.1.1 -sV –version-light''	|Enable light mode. Lower possibility of correctness. Faster|
|-sV –version-all	|''nmap 192.168.1.1 -sV –version-all''	|Enable intensity level 9. Higher possibility of correctness. Slower|
|-A	|''nmap 192.168.1.1 -A''	|Enables OS detection, version detection, script scanning, and traceroute|
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==== OS Detection ====
^SWITCH	^EXAMPLE	^DESCRIPTION ^
|-O					|''nmap 192.168.1.1 -O''					|Remote OS detection using TCP/IP stack fingerprinting|
|-O –osscan-limit	|''nmap 192.168.1.1 -O –osscan-limit''	|If at least one open and one closed TCP port are not found it will not try OS detection against host|
|-O –osscan-guess	|''nmap 192.168.1.1 -O –osscan-guess''	|Makes Nmap guess more aggressively|
|-O –max-os-tries	|''nmap 192.168.1.1 -O –max-os-tries 1''	|Set the maximum number x of OS detection tries against a target|
|-A					|''nmap 192.168.1.1 -A''					|Enables OS detection, version detection, script scanning, and traceroute|
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==== Timing and Performance ====
^SWITCH	^EXAMPLE	^DESCRIPTION ^
|-T0	|''nmap 192.168.1.1 -T0''	|Paranoid (0) Intrusion Detection System evasion|
|-T1	|''nmap 192.168.1.1 -T1''	|Sneaky (1) Intrusion Detection System evasion|
|-T2	|''nmap 192.168.1.1 -T2''	|Polite (2) slows down the scan to use less bandwidth and use less target machine resources|
|-T3	|''nmap 192.168.1.1 -T3''	|Normal (3) which is default speed|
|-T4	|''nmap 192.168.1.1 -T4''	|Aggressive (4) speeds scans; assumes you are on a reasonably fast and reliable network|
|-T5	|''nmap 192.168.1.1 -T5''	|Insane (5) speeds scan; assumes you are on an extraordinarily fast network|
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==== Timing and Performance Switches ====
^SWITCH	^EXAMPLE INPUT	^DESCRIPTION ^
|–host-timeout <time>	|1s; 4m; 2h	|Give up on target after this long|
|–min-rtt-timeout/max-rtt-timeout/initial-rtt-timeout <time>	|1s; 4m; 2h	|Specifies probe round trip time|
|–min-hostgroup/max-hostgroup <size<size>	|50; 1024	|Parallel host scan group sizes|
|–min-parallelism/max-parallelism <numprobes>	|10; 1	|Probe parallelization|
|–max-retries <tries>	|3	|Specify the maximum number of port scan probe retransmissions|
|–min-rate <number>	|100	|Send packets no slower than <number> per second|
|–max-rate <number>	|100	|Send packets no faster than <number> per second|
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==== NSE Scripts ====
^SWITCH	^EXAMPLE  ^DESCRIPTION ^
|-sC	|''nmap 192.168.1.1 -sC''	|Scan with default NSE scripts. Considered useful for discovery and safe|
|–script default	|''nmap 192.168.1.1 –script default''	|Scan with default NSE scripts. Considered useful for discovery and safe|
|–script	|''nmap 192.168.1.1 –script=banner''	|Scan with a single script. Example banner|
|–script	|''nmap 192.168.1.1 –script=http*''	|Scan with a wildcard. Example http|
|–script	|''nmap 192.168.1.1 –script=http,banner''	|Scan with two scripts. Example http and banner|
|–script	|''nmap 192.168.1.1 –script “not intrusive”''	|Scan default, but remove intrusive scripts|
|–script-args	|''nmap –script snmp-sysdescr –script-args snmpcommunity=admin 192.168.1.1''	|NSE script with arguments|
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==== Useful NSE Script Examples ====
^COMMAND	^DESCRIPTION ^
|''nmap -Pn –script=http-sitemap-generator scanme.nmap.org''	|http site map generator|
|''nmap -n -Pn -p 80 –open -sV -vvv –script banner,http-title -iR 1000''	|Fast search for random web servers|
|''nmap -Pn –script=dns-brute domain.com''	|Brute forces DNS hostnames guessing subdomains|
|''nmap -n -Pn -vv -O -sV –script smb-enum*,smb-ls,smb-mbenum,smb-os-discovery,smb-s*,smb-vuln*,smbv2* -vv 192.168.1.1''	|Safe SMB scripts to run|
|''nmap –script whois* domain.com''	|Whois query|
|''nmap -p80 –script http-unsafe-output-escaping scanme.nmap.org''	|Detect cross site scripting vulnerabilities|
|''nmap -p80 –script http-sql-injection scanme.nmap.org''	|Check for SQL injections|
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==== Firewall / IDS Evasion and Spoofing ====
^SWITCH	^EXAMPLE	^DESCRIPTION ^
|-f		|''nmap 192.168.1.1 -f''	|Requested scan (including ping scans) use tiny fragmented IP packets. Harder for packet filters|
|–mtu	|''nmap 192.168.1.1 –mtu 32''	|Set your own offset size|
|-D		|''nmap -D 192.168.1.101,192.168.1.102,192.168.1.103,192.168.1.23 192.168.1.1''	|Send scans from spoofed IPs|
|-D		|''nmap -D decoy-ip1,decoy-ip2,your-own-ip,decoy-ip3,decoy-ip4 remote-host-ip''	|Above example explained|
|-S		|''nmap -S www.microsoft.com www.facebook.com''	|Scan Facebook from Microsoft (-e eth0 -Pn may be required)|
|-g		|''nmap -g 53 192.168.1.1''	|Use given source port number|
|–proxies	|''nmap –proxies http://192.168.1.1:8080, http://192.168.1.2:8080 192.168.1.1''	|Relay connections through HTTP/SOCKS4 proxies|
|–data-length	|''nmap –data-length 200 192.168.1.1''	|Appends random data to sent packets|
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==== Output ====
^SWITCH	^EXAMPLE	^DESCRIPTION ^
|-oN	|''nmap 192.168.1.1 -oN normal.file''	|Normal output to the file normal.file|
|-oX	|''nmap 192.168.1.1 -oX xml.file''	|XML output to the file xml.file|
|-oG	|''nmap 192.168.1.1 -oG grep.file''	|Grepable output to the file grep.file|
|-oA	|''nmap 192.168.1.1 -oA results''	|Output in the three major formats at once|
|-oG –	|''nmap 192.168.1.1 -oG –''	|Grepable output to screen. -oN -, -oX – also usable|
|–append-output	|''nmap 192.168.1.1 -oN file.file –append-output''	|Append a scan to a previous scan file|
|-v	|''nmap 192.168.1.1 -v''	|Increase the verbosity level (use -vv or more for greater effect)|
|-d	|''nmap 192.168.1.1 -d''	|Increase debugging level (use -dd or more for greater effect)|
|–reason	|''nmap 192.168.1.1 –reason''	|Display the reason a port is in a particular state, same output as -vv|
|–open	|''nmap 192.168.1.1 –open''	|Only show open (or possibly open) ports|
|–packet-trace	|''nmap 192.168.1.1 -T4 –packet-trace''	|Show all packets sent and received|
|–iflist	|''nmap –iflist''	|Shows the host interfaces and routes|
|–resume	|''nmap –resume results.file''	|Resume a scan|
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==== Helpful Nmap Output examples ====
^COMMAND	^DESCRIPTION ^
|''nmap -p80 -sV -oG – –open 192.168.1.1/24 | grep open''	|Scan for web servers and grep to show which IPs are running web servers|
|''nmap -iR 10 -n -oX out.xml | grep “Nmap” | cut -d ” ” -f5 > live-hosts.txt''	|Generate a list of the IPs of live hosts|
|''nmap -iR 10 -n -oX out2.xml | grep “Nmap” | cut -d ” ” -f5 >> live-hosts.txt''	|Append IP to the list of live hosts|
|''ndiff scanl.xml scan2.xml''	|Compare output from nmap using the ndif|
|''xsltproc nmap.xml -o nmap.html''	|Convert nmap xml files to html files|
|''grep ' open ' results.nmap | sed -r ‘s/ +/ /g’ | sort | uniq -c | sort -rn | less''	|Reverse sorted list of how often ports turn up|
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==== Miscellaneous Options ====
^SWITCH	^EXAMPLE	^DESCRIPTION ^
|-6	|''nmap -6 2607:f0d0:1002:51::4''	|Enable IPv6 scanning|
|-h	|''nmap -h''	|nmap help screen|
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==== Other Useful Nmap Commands ====
^COMMAND	^DESCRIPTION ^
|''nmap -iR 10 -PS22-25,80,113,1050,35000 -v -sn''	|Discovery only on ports x, no port scan|
|''nmap 192.168.1.1-1/24 -PR -sn -vv''	|Arp discovery only on local network, no port scan|
|''nmap -iR 10 -sn -traceroute''	|Traceroute to random targets, no port scan|
|''nmap 192.168.1.1-50 -sL –dns-server 192.168.1.1''	|Query the Internal DNS for hosts, list targets only|