My initial plan was to “pause” my THM journey Oct 10, 2010 · A collection of write-ups and walkthroughs of my adventures through https://hackthebox. Changing audit2020 password using our Kali machine is easy and can be done with rpcclient. Root involved abusing the SeBackupPrivilege Using diskshadow to get a root shell. hackthebox. cmd : nmap -sC -sV -oA Black/nmap blackfield. Subsequently, an LSASS process backup containing a valid hash will lead you to a high BlackField (HTB) \n \n; First would be using null credentials to find some users. Generating TGT for a valid user and cracking it with john. Could use some help currently trying to get first creds (with im…) but always get “In order to perform this opera tion a successful bind must be completed on the connection. txt We now have 3 valid usernames, place them in a user file and its time to try and hash. 31K views 2 years ago CTF - Windows - Hard. 11. 129. Now i can login to rpcclient the user has permissions to chnage another users’s password, Thats what we need ,Chnaged the pass and Got access to another share which contain a . The ports discovered are then investigated further with a second nmap scan: sudo nmap -p53,135,139,389,445,3268,5985 -sV -sC -v blackfield. local) from nmap (2. 140. Next, we crack the hash and enumerate the domain using Bloodhound. htb. The options I regularly use are: -p-, which is a shortcut which tells nmap to scan all TCP ports, -sC runs a TCP connect scan, -sV does a service scan, -oA <name> saves all types of output ( . 213. Blackfield HTB Writeup | HacktheBox. Updated Nov 9, 2020. A list of potential usernames can be created based on user directories found in an open SMB share and then used to run an AS-REP roast attack which results in the hash for the support user. Within 3 months I completed, almost, 7 out of 9 learning paths that I had set as a goal, worked my way through numerous CTF rooms, and I was sitting at the top 2% rank. Oct 27, 2020 · Blackfield [HTB] Blackfield was a really fun Active Directory machine with many steps required to be able to read the root flag. Discovered items: (1. php, which presents a form: The “Fax” and “Troubleshooting” links don’t go anywhere. 179. root@strike:~# smbclient -U " "%" " \\\\10. CONTENT HIDDEN - ACTIVE MACHINE! CTF, Fullpwn. 80 scan initiated Fri Jun 12 11:02:40 2020 as: nmap -sCV -A -oA scan/blackfield blackfield. These ports are the typical port used by Active Directory Domain Controller (AD DC). 此台机器为域渗透类型，内容十分精彩 平时很难碰到这么好的环境 真的是学到了很多干货 。. -. User Write-Ups for HackTheBox. If you like this content and would like to see more, please consider buying me a coffee! Previous HTB - Reel2 Next HTB - Multimaster. Jan 24, 2024 · HTB - Busqueda. Check out my latest post on the cybersecurity blog, tonight we broke into Blackfield, a hard rated hacking challenge on Hack… Thad Turner, MBA on LinkedIn: Blackfield - HTB Writeup Skip to main Aug 27, 2023 · Swaghttps://www. For privesc, I’ll look at unpatched kernel vulnerabilities. htb hackthebox nmap http webserver mysql mysqldump vm2 node-js hash hashcat bcrypt. Enumeration Jul 31, 2020 · blackfield hackthebox walkthrough https://itsecuritydz. This is an Active Directory machine rated as "Hard. 192\\profiles$ WARNING: The "encrypt passwords" option is deprecated Unknown parameter encountered: "winbind trusted domains only" Ignoring unknown parameter "winbind trusted domains only" WARNING: The "null passwords" option is deprecated Try "help" to get a list of possible commands. Oct 4, 2020 · Hack the Box, Writeup. Firing off nmap to see what we have. 2 Oct 3, 2020 · Blackfield was a fun Windows box where we get a list of potential usernames from an open SMB share, validate that list using kerbrute, then find and crack the hash of an account with the AS-REProasting technique. htb becomes \\\\blackfield. htb ( 10. From previous CTF's it was obvious that we would have upload something to generate a shell. This box has various interesting vulnerabilities, and security misconfigurations were placed. After getting that first user, we’ll use Bloodhound to discover that we can change another account’s password, then from there access a previously locked down SMB share, retrieve Oct 3, 2020 · [HTB] Blackfield Writeup. /kerbrute userenum --dc 10. Aug 19, 2022 · -In this video, I started working through the "Blackfield" machine on HackTheBox. 169» $ nmap -sC -sV -oN initial-blackfield 10. next we can download ntds. It is an Active Directory-based environment, where our initial reconnaissance involved analyzing a network-level shared resource exposed through SMB. With the new user creds we Jun 9, 2020 · Brief@Blackfield:~$ Well the journey starts from a smb share which has a lot of dirs that turned out to be usernames. Oct 4, 2020 · Blackfield is very easy among hard rated machines in HTB and also highly Educational which comes with unique AD stuff. txt. E root. Blackfield is a Windows machine running Active Directory. github. Machines. Jul 3, 2024 · HTB-Mailing. polarbearer. Rank. That said, I really learned a lot on Dec 23, 2023 · Welcome! Today we’re doing Blackfield from HackTheBox. I obtained an initial Oct 10, 2010 · HTB BlackField Writeup Jun 10, 2020 11644 Author: Ikonw Nmap Scan: Starting Nmap 7. Jun 6, 2020 · HTB Content. Starting Nmap 7. 8 min read. Oct 10, 2020 · I tried to see the content of profiles$ and i got it. Blackfield is a collaborative music project by the English musician and founder of Porcupine Tree, Steven Wilson, and Israeli rock musician Aviv Geffen. 25 February 2024 . Dec 3, 2021 · Blackfield is a 40-point machine on Hack the Box that you need to tackle by capitalizing on some slip-ups made after a recent computer forensic investigation. TazWake August 11, 2020, 1:34pm . Blackfield was a beautiful Windows Activity directory box where I’ll get to exploit AS-REP-roasting, discover privileges with bloodhound from my remote host using BloodHound. A windows machine that is a DC which has SMB null session enabled where we could License. Its basic function is to send messages between different applications, but includes additional features like STOMP, JMS, and OpenWire. Impacket-GetNPUsers Oct 10, 2011 · Information Gathering Nmap. txt Compatibility Level: Windows Vista/Server 2008 something worth reporting to the HTB crew (Jira) about. The writeup and the video differ slightly as I learned a few more things after I had initially rooted the machine. Welcome! Today we’re doing Blackfield from HackTheBox. 218. Includes retired machines and challenges. Nmap discovers four ports open: sudo nmap -sSVC 10. 192 Nmap scan report for blackfield. Official discussion thread for Blackfield. 192)Host is up (0. After getting that first user, we’ll use Bloodhound to discover that we can change another account’s password, then from there access a previously locked down SMB share, retrieve Oct 3, 2020 · Blackfield was a really interesting hard windows box which involed a kerberoasting attack on active directory to obtain credentials. → root@iamf «blackfield» «10. Write-ups for Insane-difficulty Windows machines from https://hackthebox. local/support 10. 192. Blackfield is a Hard rated box from HackTheBox. With access to another I started my enumeration with an nmap scan of 10. 93 seconds. Run smbclient //secnotes. local users. \n Oct 10, 2010 · SeBackupPrivilege. Blackfield is a windows active directory machine rated ‘hard’ on hack the box. Oct 10, 2010 · HTB-Blackfield靶机测试记录. Here is my writeup for the Blackfield machine. Focus. Encrypting the root flag so that NT . Initial f Feb 9, 2024. The operation completed successfully. *Evil-WinRM* PS C:\Users> vssadmin create shadow /for=C: The python version of bloodhound allows it to be run against a remote host with credentials, and outputs a few . Dec 30, 2020 · 注意このWalkthroughはHack The Box(以下、HTB)の問題であるBlackFieldの解説を目的とした記事です。不正アクセス等の違法行為を助長するものではありません。はじめにOSがWindowsでHardの問題。Rateが4. 9でStaff Pickされている神マシン… Jul 3, 2024 · Information Gathering Rustscan Rustscan find several ports open. io! Please check it out! ⚠️. I search a little bit on the available writeups but all of them where using WinRM to exploit the "Backup Operators" group. ASREPRoast. smb Performing the regular nmap scan nmap -sCV -A blackfield. I started my enumeration with an nmap scan of 10. tv/overgrowncarrot1Join the Discord Channelhttps://discord. Introduction. Contribute to abramas/m0d1cumc0rvu5. ⚠️ I am in the process of moving my writeups to a better looking site at https://zweilosec. The files left valuable information about the machine, usually extracted when doing computer forensics, which includes a dump of LSASS. Jan 11, 2024 · For the past few months, I was intensively studying and practicing almost exclusively through the Try Hack Me (THM) platform. 5 --range 1-65535 Enumeration LDAP - TCP 389 We will first enumerate LDAP. Blackfield was an excellent educational box about windows active directory attacks, I cant recommend it enough to anyone intrested in that topic. Blackfield has no Guided mode, so there are no Guided questions and answers. Run: . Blackfield HTB Writeup | HacktheBox Read More Jan 12, 2024 · Codify. htb <- with linux we have to double up any slashes so \\blackfield. 192 -d BLACKFIELD. 10. gg/suBmEKYMf6GitHubhtt Sep 23, 2020 · If you are into cyber security and don’t know HackTheBox (HTB) platform, GET ON IT! It is a fantastic learning tool for getting hands-on experience how to pop shells on Windows and Linux machines. I’ll use that to get a shell. * Username : Administrator. The user flag can be obtained by abusing the ForceChangePassword object permission over another domain user. Please do not post any spoilers or big hints. If we remember from our nmap scan, we found 2 ports running IIS. 步骤: samba获取文件 > 获取用户列表 > 枚举用户得到TGT > hashcat解密TGT > rpcclient枚举权限 > SeBackupPrivilege和SeRestorePrivilege权限 Jul 28, 2023 · Hey! Back at it again today, this time featuring Blackfield from HackTheBox. 9. Namingcontexts also contain the information that a machine needs to know when joining the Oct 24, 2020 · To do this, we can transfer the zip over to a Windows VM, start up mimikatz with an administrator cmd. Follow. It is based on an active directory environment. Run Nmap to enumerate open ports and services running on those ports. 80 ( https://nmap. Oct 3, 2020 · Blackfield was a fun Windows box where we get a list of potential usernames from an open SMB share, validate that list using kerbrute, then find and crack the hash of an account with the AS-REProasting technique. Jul 19, 2021 · HTB: Blackfield | 0xdf hacks stuff *Evil-WinRM* PS C:\Users\Administrator\desktop> cipher /c root. Blackfield was a Hard rated box on HackTheBox , created by aas . json files that I imported into the main program. Mar 30, 2023. Oct 10, 2010 · Worker. eu. Mar 30, 2023 · Hack the Box writeup #4- Blackfield. We should definitely look into SMTP and port 5000. Easy. Description: This privilege causes the system to grant all read access control to any file, regardless of the access control list (ACL) specified for the file. ekenas. nmap, . Oct 3, 2020 · HackTheBox - Blackfield. gnmap, and . After getting that first user, we’ll use Bloodhound to discover that we can change another account’s password, then from there access a previously locked down SMB share, retrieve Mar 21, 2022 · [HTB] Blackfield Write-up. $ rpcclient -U blackfield. , data 0, v4563” didnt find a solution yet am I missing something ? Sep 30, 2020 · HTB: Blackfield. This post is licensed under CC BY 4. Insane. Oct 4, 2020 · Nmap. txt Listing C:\Users\Administrator\desktop\ New files added to this directory will not be encrypted. 139 Enter BLACKFIELD. The writeup and the video differ slightly as I learned a few more things after I had Oct 10, 2010 · Nmap scan. Oct 9, 2020 · Smbclient -L \\\\blackfield. 0 by the author. It features a fairly common exploitation path for Windows Active Directory. htb gave the following result $ cat scan/blackfield. com/2020/07/31/htb-walkthrough-blackfield-10-10-10-192/ May 25, 2023 · It means that we can change audit2020 password without knowing its current password. nmap # Nmap 7. eu Difficulty: Hard OS: Windows Points: 40 Write-up Overview# TL;DR: Install tools used in this WU on BlackArch Linux: 1$ pacman -S nmap sm 3 days ago · Blackfield is a hard HTB machine where you need to discover an AS-REP roastable user by creating a custom username wordlist, leveraging information leakage from publicly accessible SMB shares. 强烈推荐做完 。. 28Mar2021. Blackfield was a really fun Active Directory machine with many steps required to be able to read the root flag. Write-ups for Easy-difficulty Linux machines from https://hackthebox. io 🌠. Nov 1, 2022 · I saved this list in another file and removed the rest of the data by using the following command: cut -d “ ”-f 3 users. Hack the Box Write-ups being moved to https://zweilosec. 217K subscribers. org ) at 2020-09-07 20:09 +08 Nmap Dec 6, 2021 · Blackfield is a hard level box on HackTheBox and requires basic Active Directory knowledge and enumeration skills to solve. Oct 3, 2020 · Overview: This windows box required a lot of enumeration and was focussed on Active Directory. First, we get a list of usernames from publicly accessible SMB shares. htb Nmap scan report for blackfield. zip file , Unzipping it we have a Memory Oct 3, 2020 · Hack the Box — Blackfield. local domain name with dig. Oct 10, 2010 · 1Apr2021. Testing my knowledge of Active Directory and teaching me new tricks along the way, this is one of my favourite boxes on the platform. 203. 054s latency). An initial TCP scan with nmap discovers at least seven open ports. The options I regularly use are: -p-, which is a shortcut which tells nmap to scan all ports, -sC is the equivalent to --script=default and runs a collection of nmap enumeration scripts against the target, -sV does a service scan, and -oN <name> saves the output with a filename of <name>. A windows machine that is a DC which has SMB null session enabled where we could… Apr 14, 2022 · Blackfield is a hard-rated windows machine from hackthebox. Using these users, we get the hash of the support user from Kerberos using GetNPUsers. htb/new-site -U tyler to login in. With the Mail Server access as the Oct 3, 2020 · Blackfield was a fun Windows box where we get a list of potential usernames from an open SMB share, validate that list using kerbrute, then find and crack the hash of an account with the AS-REProasting technique. Together, six albums have been released under the moniker. ·. Oct 4, 2020 · HTB Blackfield Walkthrough. This was a Hard rated machine, and it definitely had some tricky moments for me. exe to copy ntds directory from x to current directory. cube0x0. htb -b '' -s base "(namingcontexts=*)" > namingcontexts. Contribute to Kyuu-Ji/htb-write-up development by creating an account on GitHub. htb View the full TCP port scan results. Medium. 182. Jack. Tech Stack. htb/new-site is a valid SMB share, run: smbclient --list//secnotes. Following this, we dump the Administrator hashes. 00:00 - Intro 01:00 - Start of nmap 03:00 - Enumerating fileshares with SMBClient and Jan 12, 2024 · Active Message Queuing (ActiveMQ) is an open source protocol written in Java and developed by Apache which functions as an implementation of message-oriented middleware (MOM). After getting that first user, we’ll use Bloodhound to discover that we can change another account’s password, then from there access a previously locked down SMB share, retrieve Oct 8, 2020 · Blackfield was a exceptional Windows box centralized on Active Directory environment, initial SMB enumeration reveals potential usernames of Domain accounts. Since port 445 (SMB) is open I tried to enumerate open shares by using anonymous login \n And finally, I will mount the virtual NTFS disk to a directory called smb in my current working directory (full path is /root/HTB/Blackfield/smb): mount /dev/loop0 smb Backfield from Hack The Box is an hard difficulty Windows machine featuring Windows and Active Directory misconfigurations. Blackfield HTB Writeup | HacktheBox Read More Blackfield HTB Writeup. etsy. wordpress. Saved searches Use saved searches to filter your results more quickly Jan 29, 2024 · Blackfield is a Hard rated box from HackTheBox. Short description to include any strange things to be dealt with \n Useful Skills and Tools \n Useful thing 1 \n \n; description with generic example \n \n Useful thing 2 \n \n; description with generic example \n \n Enumeration \n Nmap scan \n. htbapibot June 6, 2020, 3:01pm 1. Write-ups for Medium-difficulty Windows machines from https://hackthebox. txt The namingcontexts help us figure out the domain that we’re currently looking into at the very list. Based on the open ports, this machine seems to be a domain controller: rustscan --addresses 10. \n; After a user list is determined, we can use that to ASREP Roast and find a hash for the 'support' user. ) user lists via smb. Jan 4, 2024 · Blackfield is another Active Directory machine to obtain the Administrator hash. Firstly, I tried the vssadmin, well I don’t have the privilege. Welcome back to another HackTheBox machine pentesting session, this time we will tackle the Blackfield box. 180. May 5, 2022 · The site is the “HTB Printer Admin Panel”: “Settings” leads to /settings. Blackfield is a 40-point machine from Hack the Box which requires you to exploit mistakes done after a recent computer forensic investigation recently done on the machine. gunroot June 6 \n. One of them was the support user account, which has Kerberos pre-authentication disabled so with AS-REP roasting we get its credentials. 192 ) Host is up ( 0. exe console, and use the following commands: We get a number of hashes, but the most interesting are the Administrator and svc_backup hashes. py, and then reset another user’s password over RPC. Most of them were named generically BLACKFIELD123456, however there were a few that stuck out. Mar 17, 2021 · Optimum was sixth box on HTB, a Windows host with two CVEs to exploit. The user part was rather lengthy, but with the use of Bloodhound, the path to root becomes clear very early on. htb (10. 13Dec2020. This shows us that we are able to change the password of another user. Port 53 is open, so we can enumerate all the possible subdomains for the blackfield. Overview Busqueda is an Easy Difficulty Linux machine that involves exploiting a command injection (CI) vulnerability, finding credentials in a configuration file and Docker containers. 627. 20s latency ) . Results: Nov 12, 2020 · 1- Reconnaissance. Zweilosec’s writeup on the hard-difficulty machine Blackfield from https://hackthebox. As usual, we began with a basic nmap scan as a part of enumeration and noticed smb null session was enabled. We validate them using kerbrute - a tool which send TGT requests with no pre-authentication property to validate user accounts. The first is a remote code execution vulnerability in the HttpFileServer software. local @10. htb hacking hack the box redteam windows impacket powershell smb rpc bloodhound kerberos mimikatz sebackupprivilege serestoreprivilege oscp tj_null hard writeup aas unfinished. A collection of write-ups and walkthroughs of my adventures through https://hackthebox. Later we use AS-REP roasting technique to find and crack the hash of an account. )domain name (blackfield. Last updated 3 years ago. io! Nov 7, 2020 · Cewlkid is a quick little box requiring a custom wordlist and brute forcing to crack. Anonymous / Guest access to an SMB… Oct 10, 2010 · Nmap done at Wed Apr 5 09:37:32 2023 -- 1 IP address (1 host up) scanned in 51. The first two records, Blackfield and Blackfield II, saw Geffen and Wilson working together as equal partners, while the third and Oct 10, 2020 · We’ll start by getting the default namingcontexts: ldapsearch -LLL -x -H ldap://blackfield. Anonymous / Guest access to an SMB share. Feb 3, 2024 · Blackfield HTB Writeup | HacktheBox. Bloodhound reported 342 (!) users on this domain. 10. I started my enumeration of this machine with an nmap scan of 10. We then get access to an old version an lsass dump HTB - Blackfield \n Overview \n \n. In this guide we Aug 11, 2020 · can anyone help me get root…got user. Big part of solving this machine included user interaction via scheduled task, which was interesting since more CTF machines don’t have this. description. If you like this content and would like to see more, please consider buying me a coffee! Previous HTB - APT Next HTB - Traceback. 14. dig any blackfield. I gain Administrator hash for mail server through LFI vulnerability. Oct 3, 2020 · Blackfield is a hard windows box by aas. Lateral movement required changing May 13, 2024 · Blackfield - HTB Writeup Machine Overview Backfield is a hard difficulty Windows machine featuring Windows and Active Directory misconfigurations. Jan 31, 2021 · First we mount C: as shadow volume X: then we can use robocopy. The options I regularly use are: -p-, which is a shortcut which tells nmap to scan all ports, -sC is the equivalent to --script=default and runs a collection of nmap enumeration scripts against the target, -sV does a service scan, and -oN <name> saves the output with a filename of <name>. \n; From there, we can use bloodhound to find more information, and determine that the support user is able to change the password of the audit2020 user. Next, we check the validity of these users. we will need two registry hives in order to decrypt ntds. Everything points to this site being written in PHP, including the page extensions and the response headers: Mar 24, 2023 · Blackfield is a windows Active Directory machine and is considered as hard box by the hack the box. xml) with filenames of <name>. Mar 23, 2021 · To Confirm that, secnotes. Today to enumerate these I’d use Watson (which is also built into winPEAS), but getting the new version to work on this old box is actually Blackfield from HackTheBox This box was designed by aas_s3curity to exploit a user from the group "Backup Operators" to become domain admin and get the root flag. IppSec. dit which we can get using reg save command. " I demonstrate the foll Oct 3, 2020 · Blackfield was a fun Windows box where we get a list of potential usernames from an open SMB share, validate that list using kerbrute, then find and crack the hash of an account with the AS-REProasting technique. Then we discovered a pre-authentication Jul 1, 2020 · Introduction. In this guide we will freshen up on our use of AS-REP roasting and bloodhound. Oct 3, 2020 · Information Box# Name: Blackfield Profile: www. Mailing is an Easy Windows machine on HTB that felt more like medium level to me. Dump SYSTEM and SAM hives. * Domain : BLACKFIELD. Additionally, there are three different… Jul 1, 2024 · Hack The Box - Blackfield. zip file , Unzipping it we have a Memory Feb 12, 2020 · To get started with our pentest, we enumerate the host for open ports: sudo nmap -p- -v blackfield. htb -U tyler. *Evil-WinRM* PS C:\Users\svc_backup\Downloads> cmd /c "reg save HKLM\SAM SAM & reg save HKLM\SYSTEM SYSTEM". htb We will get prompted for a password but will just hit enter to use no authentication. July 01, 2024. py. After getting that first user, we’ll use Bloodhound to discover that we can change another account’s password, then from there access a previously locked down SMB share, retrieve Nov 7, 2020 · Blackfield [HTB] Posted Nov 7, 2020 by Flying_M0nkey. LOCAL\support's password: rpcclient $> setuserinfo audit2020 23 Qwerty1! rpcclient $>. While searching for Kerberos related attack, following this article, it Jun 14, 2020 · Official discussion thread for Blackfield. Jun 8, 2020 · Brief@Blackfield:~$ Well the journey starts from a smb share which has a lot of dirs that turned out to be usernames. dit file. Oct 10, 2010 · Luanne. com/shop/OGC1DesignFollow Live Streams on Twitchtwitch. Foothold required enumeration of SMB followed by AS-Rep Roasting on the list of accounts found. If you like this content and would like to see more, please consider buying me a coffee! Previous HTB - Omni Next HTB - Resolute. Service Enumeration. After getting that first user, we’ll use Bloodhound to discover that we can change another account’s password, then from there access a previously locked down SMB share, retrieve Oct 3, 2020 · Blackfield was a fun Windows box where we get a list of potential usernames from an open SMB share, validate that list using kerbrute, then find and crack the hash of an account with the AS-REProasting technique. Then using rpcclient to change credentials for another user allowing us access to their machine. Overview The box starts with smb-enumeration, where get a list of usernames. It starts with us finding anonymous access to a smb share which had a lot of directories which turn out be usernames. About Blackfield: Blackfield is a hard level machine on the HackTheBox platform. io development by creating an account on GitHub. The investigation left behind files containing valuable insights into the machine, typically uncovered during digital forensics work. pu xb nb al yt ga ux ab ck fs