InfoSec LAB

APT_Recon_IPv6

Created: 5 min read

RustScan

┌──(kali㉿kali)-[~/archive/htb/labs/apt]
└─$ rustscan -a dead:beef::24b -b 25000
________________________________________
: https://discord.gg/GFrQsGy           :
: https://github.com/RustScan/RustScan :
 --------------------------------------
Nmap? More like slowmap.🐢
 
[~] The config file is expected to be at "/home/kali/.rustscan.toml"
[~] Automatically increasing ulimit value to 5000.
[!] File limit is lower than default batch size. Consider upping with --ulimit. May cause harm to sensitive servers
open [dead:beef::24b]:53
open [dead:beef::24b]:80
open [dead:beef::24b]:88
open [dead:beef::24b]:135
open [dead:beef::24b]:389
open [dead:beef::24b]:445
open [dead:beef::24b]:464
open [dead:beef::24b]:593
open [dead:beef::24b]:636
open [dead:beef::24b]:3269
open [dead:beef::24b]:3268
open [dead:beef::24b]:5985
open [dead:beef::24b]:9389
open [dead:beef::24b]:47001
open [dead:beef::24b]:49664
open [dead:beef::24b]:49666
open [dead:beef::24b]:49665
open [dead:beef::24b]:49667
open [dead:beef::24b]:49669
open [dead:beef::24b]:49670
open [dead:beef::24b]:49675
open [dead:beef::24b]:49695
open [dead:beef::24b]:58348
 
┌──(kali㉿kali)-[~/archive/htb/labs/apt]
└─$ rustscan -a dead:beef::b885:d62a:d679:573f -b 25000
________________________________________
: https://discord.gg/GFrQsGy           :
: https://github.com/RustScan/RustScan :
 --------------------------------------
😵 https://admin.tryhackme.com
 
[~] The config file is expected to be at "/home/kali/.rustscan.toml"
[~] Automatically increasing ulimit value to 5000.
[!] File limit is lower than default batch size. Consider upping with --ulimit. May cause harm to sensitive servers
open [dead:beef::b885:d62a:d679:573f]:53
open [dead:beef::b885:d62a:d679:573f]:88
open [dead:beef::b885:d62a:d679:573f]:80
open [dead:beef::b885:d62a:d679:573f]:135
open [dead:beef::b885:d62a:d679:573f]:389
open [dead:beef::b885:d62a:d679:573f]:445
open [dead:beef::b885:d62a:d679:573f]:464
open [dead:beef::b885:d62a:d679:573f]:593
open [dead:beef::b885:d62a:d679:573f]:636
open [dead:beef::b885:d62a:d679:573f]:3268
open [dead:beef::b885:d62a:d679:573f]:3269
open [dead:beef::b885:d62a:d679:573f]:5985
open [dead:beef::b885:d62a:d679:573f]:9389
open [dead:beef::b885:d62a:d679:573f]:47001
open [dead:beef::b885:d62a:d679:573f]:49665
open [dead:beef::b885:d62a:d679:573f]:49664
open [dead:beef::b885:d62a:d679:573f]:49667
open [dead:beef::b885:d62a:d679:573f]:49669
open [dead:beef::b885:d62a:d679:573f]:49666
open [dead:beef::b885:d62a:d679:573f]:49670
open [dead:beef::b885:d62a:d679:573f]:49675
open [dead:beef::b885:d62a:d679:573f]:49695
open [dead:beef::b885:d62a:d679:573f]:58348
 
┌──(kali㉿kali)-[~/archive/htb/labs/apt]
└─$ rustscan -a dead:beef::183f:801c:80e2:9c63 -b 25000
________________________________________
: https://discord.gg/GFrQsGy           :
: https://github.com/RustScan/RustScan :
 --------------------------------------
😵 https://admin.tryhackme.com
 
[~] The config file is expected to be at "/home/kali/.rustscan.toml"
[~] Automatically increasing ulimit value to 5000.
[!] File limit is lower than default batch size. Consider upping with --ulimit. May cause harm to sensitive servers
open [dead:beef::183f:801c:80e2:9c63]:53
open [dead:beef::183f:801c:80e2:9c63]:80
open [dead:beef::183f:801c:80e2:9c63]:88
open [dead:beef::183f:801c:80e2:9c63]:135
open [dead:beef::183f:801c:80e2:9c63]:389
open [dead:beef::183f:801c:80e2:9c63]:445
open [dead:beef::183f:801c:80e2:9c63]:464
open [dead:beef::183f:801c:80e2:9c63]:593
open [dead:beef::183f:801c:80e2:9c63]:636
open [dead:beef::183f:801c:80e2:9c63]:3269
open [dead:beef::183f:801c:80e2:9c63]:3268
open [dead:beef::183f:801c:80e2:9c63]:5985
open [dead:beef::183f:801c:80e2:9c63]:9389
open [dead:beef::183f:801c:80e2:9c63]:47001
open [dead:beef::183f:801c:80e2:9c63]:49670
open [dead:beef::183f:801c:80e2:9c63]:49664
open [dead:beef::183f:801c:80e2:9c63]:49665
open [dead:beef::183f:801c:80e2:9c63]:49666
open [dead:beef::183f:801c:80e2:9c63]:49675
open [dead:beef::183f:801c:80e2:9c63]:49667
open [dead:beef::183f:801c:80e2:9c63]:49669
open [dead:beef::183f:801c:80e2:9c63]:49695
open [dead:beef::183f:801c:80e2:9c63]:58348

The target system was initially suspected to be either part of a Windows domain or a domain controller itself due to the implications shown in the MSRPC service At a later stage, 3 additional IPv6 addresses have been discovered with IOXIDResolver While the additional scan result reveals that those 3 IPv6 addresses share the same open ports, those ports are most-certainly seen in a Domain Controller in an Active Directory environment

since they all serve the same services across the same ports, i will continue the operation with the following ipv6 address; dead:beef::b885:d62a:d679:573f

Nmap

┌──(kali㉿kali)-[~/archive/htb/labs/apt]
└─$ nmap -sC -sV -6 -p- dead:beef::b885:d62a:d679:573f
Starting Nmap 7.94 ( https://nmap.org ) at 2023-10-22 15:31 CEST
Nmap scan report for apt (dead:beef::b885:d62a:d679:573f)
Host is up (0.10s latency).
Not shown: 65514 filtered tcp ports (no-response)
PORT      STATE SERVICE      VERSION
53/tcp    open  domain       Simple DNS Plus
80/tcp    open  http         Microsoft IIS httpd 10.0
| http-methods: 
|_  Potentially risky methods: TRACE
|_http-server-header: Microsoft-IIS/10.0
|_http-title: Gigantic Hosting | Home
88/tcp    open  kerberos-sec Microsoft Windows Kerberos (server time: 2023-10-22 13:34:27Z)
135/tcp   open  msrpc        Microsoft Windows RPC
389/tcp   open  ldap         Microsoft Windows Active Directory LDAP (Domain: htb.local, Site: Default-First-Site-Name)
| ssl-cert: Subject: commonName=apt.htb.local
| Subject Alternative Name: DNS:apt.htb.local
| Not valid before: 2020-09-24T07:07:18
|_Not valid after:  2050-09-24T07:17:18
|_ssl-date: 2023-10-22T13:35:32+00:00; -3s from scanner time.
445/tcp   open  microsoft-ds Windows Server 2016 Standard 14393 microsoft-ds (workgroup: HTB)
464/tcp   open  kpasswd5?
636/tcp   open  ssl/ldap     Microsoft Windows Active Directory LDAP (Domain: htb.local, Site: Default-First-Site-Name)
|_ssl-date: 2023-10-22T13:35:32+00:00; -3s from scanner time.
| ssl-cert: Subject: commonName=apt.htb.local
| Subject Alternative Name: DNS:apt.htb.local
| Not valid before: 2020-09-24T07:07:18
|_Not valid after:  2050-09-24T07:17:18
3268/tcp  open  ldap         Microsoft Windows Active Directory LDAP (Domain: htb.local, Site: Default-First-Site-Name)
| ssl-cert: Subject: commonName=apt.htb.local
| Subject Alternative Name: DNS:apt.htb.local
| Not valid before: 2020-09-24T07:07:18
|_Not valid after:  2050-09-24T07:17:18
|_ssl-date: 2023-10-22T13:35:32+00:00; -4s from scanner time.
3269/tcp  open  ssl/ldap     Microsoft Windows Active Directory LDAP (Domain: htb.local, Site: Default-First-Site-Name)
|_ssl-date: 2023-10-22T13:35:32+00:00; -3s from scanner time.
| ssl-cert: Subject: commonName=apt.htb.local
| Subject Alternative Name: DNS:apt.htb.local
| Not valid before: 2020-09-24T07:07:18
|_Not valid after:  2050-09-24T07:17:18
5985/tcp  open  http         Microsoft HTTPAPI httpd 2.0 (SSDP/UPnP)
|_http-server-header: Microsoft-HTTPAPI/2.0
|_http-title: Not Found
9389/tcp  open  mc-nmf       .NET Message Framing
47001/tcp open  http         Microsoft HTTPAPI httpd 2.0 (SSDP/UPnP)
|_http-server-header: Microsoft-HTTPAPI/2.0
|_http-title: Not Found
49664/tcp open  msrpc        Microsoft Windows RPC
49665/tcp open  msrpc        Microsoft Windows RPC
49666/tcp open  msrpc        Microsoft Windows RPC
49669/tcp open  ncacn_http   Microsoft Windows RPC over HTTP 1.0
49670/tcp open  msrpc        Microsoft Windows RPC
49675/tcp open  msrpc        Microsoft Windows RPC
49695/tcp open  msrpc        Microsoft Windows RPC
58348/tcp open  msrpc        Microsoft Windows RPC
Service Info: OS: Windows; CPE: cpe:/o:microsoft:windows
 
Host script results:
| smb-security-mode: 
|   account_used: guest
|   authentication_level: user
|   challenge_response: supported
|_  message_signing: required
|_clock-skew: mean: -8m37s, deviation: 22m39s, median: -3s
| smb2-time: 
|   date: 2023-10-22T13:35:24
|_  start_date: 2023-10-22T12:25:35
| smb2-security-mode: 
|   3:1:1: 
|_    Message signing enabled and required
| smb-os-discovery: 
|   OS: Windows Server 2016 Standard 14393 (Windows Server 2016 Standard 6.3)
|   Computer name: apt
|   NetBIOS computer name: APT\x00
|   Domain name: htb.local
|   Forest name: htb.local
|   FQDN: apt.htb.local
|_  System time: 2023-10-22T14:35:23+01:00
 
Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 247.73 seconds

The target host appears to be Windows Server 2016 Standard 14393 The target system is confirmed to be a Domain Controller in an Active Directory environment The domain is htb.local The FQDN of the target system is apt.htb.local

The domain information has been appended to the /etc/hosts file on Kali for local DNS resolution

┌──(kali㉿kali)-[~/archive/htb/labs/apt]
└─$ export IPv6=dead:beef::b885:d62a:d679:573f

The IPv6 address has been set to the IPv6 environment variable on Kali

UDP

┌──(kali㉿kali)-[~/archive/htb/labs/apt]
└─$ sudo nmap -pn -su -6 -top-ports 1000 dead:beef::b885:d62a:d679:573f
starting nmap 7.94 ( https://nmap.org ) at 2023-10-22 15:19 CEST
nmap scan report for dead:beef::b885:d62a:d679:573f
Host is up.
all 1000 scanned ports on dead:beef::b885:d62a:d679:573f are in ignored states.
not shown: 1000 open|filtered udp ports (no-response)
 
nmap done: 1 IP address (1 host up) scanned in 201.60 seconds

Nothing found

Interactive Graph View

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