[HTB] Machine: Acute

Acute

Enumeration

• nmap

└─$ nmap -Pn -p- 10.10.11.145 -T4 --min-rate 10000
Starting Nmap 7.94 ( https://nmap.org ) at 2023-09-27 18:20 BST
Nmap scan report for 10.10.11.145 (10.10.11.145)
Host is up (0.12s latency).
Not shown: 65534 filtered tcp ports (no-response)
PORT    STATE SERVICE
443/tcp open  https

Nmap done: 1 IP address (1 host up) scanned in 33.16 seconds

└─$ nmap -Pn -p443 -sC -sV 10.10.11.145 -T4 --min-rate 10000
Starting Nmap 7.94 ( https://nmap.org ) at 2023-09-27 18:21 BST
Nmap scan report for 10.10.11.145 (10.10.11.145)
Host is up (0.095s latency).

PORT    STATE SERVICE  VERSION
443/tcp open  ssl/http Microsoft HTTPAPI httpd 2.0 (SSDP/UPnP)
|_http-server-header: Microsoft-HTTPAPI/2.0
|_http-title: Not Found
| ssl-cert: Subject: commonName=atsserver.acute.local
| Subject Alternative Name: DNS:atsserver.acute.local, DNS:atsserver
| Not valid before: 2022-01-06T06:34:58
|_Not valid after:  2030-01-04T06:34:58
| tls-alpn: 
|_  http/1.1
|_ssl-date: 2023-09-27T17:21:14+00:00; -41s from scanner time.
Service Info: OS: Windows; CPE: cpe:/o:microsoft:windows

Host script results:
|_clock-skew: -41s

Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 21.34 seconds

• Web server

![]

[HTB] Machine: Chatterbox

Chatterbox

Enumeration

• nmap

└─$ nmap -Pn -p- 10.10.10.74 -T4                       
Starting Nmap 7.94 ( https://nmap.org ) at 2023-09-01 11:10 BST
Stats: 0:08:51 elapsed; 0 hosts completed (1 up), 1 undergoing Connect Scan
Connect Scan Timing: About 52.82% done; ETC: 11:27 (0:07:54 remaining)
Nmap scan report for 10.10.10.74 (10.10.10.74)
Host is up (0.19s latency).
Not shown: 65523 closed tcp ports (conn-refused)
PORT      STATE    SERVICE
135/tcp   open     msrpc
139/tcp   open     netbios-ssn
445/tcp   open     microsoft-ds
9255/tcp  open     mon
9256/tcp  open     unknown

└─$ nmap -Pn -p135,139,445,9255,9256 -sC -sV 10.10.10.74 -T4
Starting Nmap 7.94 ( https://nmap.org ) at 2023-09-01 11:42 BST
Nmap scan report for 10.10.10.74 (10.10.10.74)
Host is up (0.13s latency).

PORT     STATE SERVICE     VERSION
135/tcp  open  msrpc       Microsoft Windows RPC
139/tcp  open  netbios-ssn Microsoft Windows netbios-ssn
445/tcp  open  �+sN'V      Windows 7 Professional 7601 Service Pack 1 microsoft-ds (workgroup: WORKGROUP)
9255/tcp open  http        AChat chat system httpd
|_http-title: Site doesn't have a title.
|_http-server-header: AChat
9256/tcp open  achat       AChat chat system
Service Info: Host: CHATTERBOX; OS: Windows; CPE: cpe:/o:microsoft:windows

Host script results:
|_clock-skew: mean: 6h19m25s, deviation: 2h18m36s, median: 4h59m23s
| smb-os-discovery: 
|   OS: Windows 7 Professional 7601 Service Pack 1 (Windows 7 Professional 6.1)
|   OS CPE: cpe:/o:microsoft:windows_7::sp1:professional
|   Computer name: Chatterbox
|   NetBIOS computer name: CHATTERBOX\x00
|   Workgroup: WORKGROUP\x00
|_  System time: 2023-09-01T11:41:53-04:00
| smb-security-mode: 
|   account_used: guest
|   authentication_level: user
|   challenge_response: supported
|_  message_signing: disabled (dangerous, but default)
| smb2-security-mode: 
|   2:1:0: 
|_    Message signing enabled but not required
| smb2-time: 
|   date: 2023-09-01T15:41:51
|_  start_date: 2023-09-01T15:08:09

Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 18.74 seconds

• Nothing on smb
• Strange ports 9255 and 9256
  • Google shows

[HTB] Machine: Bounty

Bounty

Enumeration

• nmap

└─$ nmap -sC -sV 10.10.10.93                        
Starting Nmap 7.93 ( https://nmap.org ) at 2023-06-10 16:26 BST
Nmap scan report for 10.10.10.93 (10.10.10.93)
Host is up (0.098s latency).
Not shown: 999 filtered tcp ports (no-response)
PORT   STATE SERVICE VERSION
80/tcp open  http    Microsoft IIS httpd 7.5
|_http-server-header: Microsoft-IIS/7.5
| http-methods: 
|_  Potentially risky methods: TRACE
|_http-title: Bounty
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 21.31 seconds

• gobuster

└─$ gobuster dir -u http://10.10.10.93 -w /usr/share/seclists/Discovery/Web-Content/directory-list-2.3-medium.txt -t 50 -x asp,aspx 
===============================================================
Gobuster v3.5
by OJ Reeves (@TheColonial) & Christian Mehlmauer (@firefart)
===============================================================
[+] Url:                     http://10.10.10.93
[+] Method:                  GET
[+] Threads:                 50
[+] Wordlist:                /usr/share/seclists/Discovery/Web-Content/directory-list-2.3-medium.txt
[+] Negative Status codes:   404
[+] User Agent:              gobuster/3.5
[+] Extensions:              asp,apsx
[+] Timeout:                 10s
===============================================================
2023/06/10 16:39:26 Starting gobuster in directory enumeration mode
===============================================================
/transfer.aspx        (Status: 200) [Size: 941]
/UploadedFiles        (Status: 301) [Size: 156] [--> http://10.10.10.93/UploadedFiles/]
/uploadedFiles        (Status: 301) [Size: 156] [--> http://10.10.10.93/uploadedFiles/]
/uploadedfiles        (Status: 301) [Size: 156] [--> http://10.10.10.93/uploadedfiles/]
Progress: 661634 / 661683 (99.99%)
===============================================================
2023/06/10 17:15:00 Finished
===============================================================

• Web server

[HTB] Machine: Blue

Blue

Enumeration

• nmap

└─$ nmap -sC -sV 10.10.10.40
Starting Nmap 7.93 ( https://nmap.org ) at 2023-06-06 20:32 BST
Nmap scan report for 10.10.10.40 (10.10.10.40)
Host is up (0.17s latency).
Not shown: 991 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 Windows 7 Professional 7601 Service Pack 1 microsoft-ds (workgroup: WORKGROUP)
49152/tcp open  msrpc        Microsoft Windows RPC
49153/tcp open  msrpc        Microsoft Windows RPC
49154/tcp open  msrpc        Microsoft Windows RPC
49155/tcp open  msrpc        Microsoft Windows RPC
49156/tcp open  msrpc        Microsoft Windows RPC
49157/tcp open  msrpc        Microsoft Windows RPC
Service Info: Host: HARIS-PC; 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-security-mode: 
|   210: 
|_    Message signing enabled but not required
| smb2-time: 
|   date: 2023-06-06T19:33:22
|_  start_date: 2023-06-06T19:27:47
| smb-os-discovery: 
|   OS: Windows 7 Professional 7601 Service Pack 1 (Windows 7 Professional 6.1)
|   OS CPE: cpe:/o:microsoft:windows_7::sp1:professional
|   Computer name: haris-PC
|   NetBIOS computer name: HARIS-PC\x00
|   Workgroup: WORKGROUP\x00
|_  System time: 2023-06-06T20:33:23+01:00
|_clock-skew: mean: -20m25s, deviation: 34m35s, median: -27s

Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 95.84 seconds

• nmap scripts

└─$ nmap -Pn -p135,139,445 --script *vuln* 10.10.10.40
Starting Nmap 7.93 ( https://nmap.org ) at 2023-06-06 20:37 BST
Nmap scan report for 10.10.10.40 (10.10.10.40)
Host is up (0.22s latency).

PORT    STATE SERVICE
135/tcp open  msrpc
139/tcp open  netbios-ssn
445/tcp open  microsoft-ds

Host script results:
|_smb-vuln-ms10-061: NT_STATUS_OBJECT_NAME_NOT_FOUND
|_smb-vuln-ms10-054: false
| smb-vuln-ms17-010: 
|   VULNERABLE:
|   Remote Code Execution vulnerability in Microsoft SMBv1 servers (ms17-010)
|     State: VULNERABLE
|     IDs:  CVE:CVE-2017-0143
|     Risk factor: HIGH
|       A critical remote code execution vulnerability exists in Microsoft SMBv1
|        servers (ms17-010).
|           
|     Disclosure date: 2017-03-14
|     References:
|       https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-0143
|       https://technet.microsoft.com/en-us/library/security/ms17-010.aspx
|_      https://blogs.technet.microsoft.com/msrc/2017/05/12/customer-guidance-for-wannacrypt-attacks/

Nmap done: 1 IP address (1 host up) scanned in 17.09 seconds

• Right away we see that the box is vulnerable to ms17-010

Foothold/User/Root

• Launch metasploit
  • Search for ms17_010
  • Set options
  • And launch the attack

[HTB] Machine: Granny

Granny

Enumeration

• Nmap

└─$ nmap -sC -sV -Pn 10.10.10.15
Starting Nmap 7.93 ( https://nmap.org ) at 2023-06-04 18:54 BST
Nmap scan report for 10.10.10.15 (10.10.10.15)
Host is up (0.11s latency).
Not shown: 999 filtered tcp ports (no-response)
PORT   STATE SERVICE VERSION
80/tcp open  http    Microsoft IIS httpd 6.0
|_http-server-header: Microsoft-IIS/6.0
| http-methods: 
|_  Potentially risky methods: TRACE DELETE COPY MOVE PROPFIND PROPPATCH SEARCH MKCOL LOCK UNLOCK PUT
| http-webdav-scan: 
|   Server Date: Sun, 04 Jun 2023 17:54:19 GMT
|   Allowed Methods: OPTIONS, TRACE, GET, HEAD, DELETE, COPY, MOVE, PROPFIND, PROPPATCH, SEARCH, MKCOL, LOCK, UNLOCK
|   Server Type: Microsoft-IIS/6.0
|   WebDAV type: Unknown
|_  Public Options: OPTIONS, TRACE, GET, HEAD, DELETE, PUT, POST, COPY, MOVE, MKCOL, PROPFIND, PROPPATCH, LOCK, UNLOCK, SEARCH
|_http-title: Under Construction
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 29.38 seconds

• gobuster

┌──(kali㉿kali)-[~]
└─$ gobuster dir -u http://10.10.10.15/ -w /usr/share/seclists/Discovery/Web-Content/raft-medium-files-lowercase.txt
===============================================================
Gobuster v3.5
by OJ Reeves (@TheColonial) & Christian Mehlmauer (@firefart)
===============================================================
[+] Url:                     http://10.10.10.15/
[+] Method:                  GET
[+] Threads:                 10
[+] Wordlist:                /usr/share/seclists/Discovery/Web-Content/raft-medium-files-lowercase.txt
[+] Negative Status codes:   404
[+] User Agent:              gobuster/3.5
[+] Timeout:                 10s
===============================================================
2023/06/05 17:09:30 Starting gobuster in directory enumeration mode
===============================================================
/_vti_inf.html        (Status: 200) [Size: 1754]
/postinfo.html        (Status: 200) [Size: 2440]
/.                    (Status: 200) [Size: 1433]
/pagerror.gif         (Status: 200) [Size: 2806]
/iisstart.htm         (Status: 200) [Size: 1433]
Progress: 16223 / 16245 (99.86%)
===============================================================
2023/06/05 17:12:38 Finished
===============================================================

• Looks similar to Grandpa

[HTB] Machine: Devel

Devel

Enumeration

• Nmap

──(kali㉿kali)-[~]
└─$ nmap -sC -sV 10.10.10.5                                                                     
Starting Nmap 7.93 ( https://nmap.org ) at 2023-05-31 15:56 BST
Nmap scan report for 10.10.10.5 (10.10.10.5)
Host is up (0.094s latency).
Not shown: 998 filtered tcp ports (no-response)
PORT   STATE SERVICE VERSION
21/tcp open  ftp     Microsoft ftpd
| ftp-anon: Anonymous FTP login allowed (FTP code 230)
| 03-18-17  02:06AM       <DIR>          aspnet_client
| 03-17-17  05:37PM                  689 iisstart.htm
|_03-17-17  05:37PM               184946 welcome.png
| ftp-syst: 
|_  SYST: Windows_NT
80/tcp open  http    Microsoft IIS httpd 7.5
|_http-server-header: Microsoft-IIS/7.5
|_http-title: IIS7
| http-methods: 
|_  Potentially risky methods: TRACE
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 20.90 seconds

• nmap reveals that Anonymous FTP login allowed and we see the content
  • Let’s check ftp manually