This is my second write-up for a machine from Hack The Box. It is again a rather easy one but still lots of fun. Lots of opportunities to do some oldschool telnet work on email servers. It starts with port scanning and illustrates the importance of scanning also more unpopular ports. After finding the email server with default credentials, you must use your administrator power to get code execution. Once on the box, all you have to do is finding an insecure cron job and you are root.
Again, some statistics for this machine first. As it is an easy box, many people got the user flag and a considerable part managed the privesc too. While the current version of James is 3. If you would read the docs, you would discover that is offers an admin interface called RemoteManager.
By default, it runs on portwhich does not show up in the list above. A full port scan though reveals this port too:. A full scan may show important services. This one is quite useless though. It is merely a static page with a single contact form. You could run sqlmap on it but would not find anything. As an email server, James opens up ports 25 and for sending and receving emails. There is one odd port offereing something called nntpd.
It is a protocol for Usenet news articles. Finally, we have the telet admin interface on port Checking out exploitdb, we find an exploit for exaclty that version It sounds interesting since it prommises code execution. You can check out the details of the exploit here. These seem to be the default user. Cross-checking this article about installing James, we find the same credentials too.
Funny side note: the blog is from Nov There actually are people who still install this piece of software in the real world. Now, we could go directly for the exploit mentioned above.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. If nothing happens, download GitHub Desktop and try again.
If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again.
Some will also be hosted on my team TCLRed site.HackTheBox - Popcorn
Feel free to contact my HTB account will if you have any questions. Do not leak the writeups here without their flags. If I detect misuse, it will be reported to HTB. I also will not be responsible for any misuse of these writeups. I will remove it as soon as possible. Skip to content. Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.
Sign up. Some of my flag protected writeups. Branch: master. Find file. Sign in Sign up. Go back. Launching Xcode If nothing happens, download Xcode and try again. Latest commit. BitsByWill added no return password protected writeup. Latest commit 8be4 Apr 13, HacktheBox Writeups Which writeups are here? Disclaimer Do not leak the writeups here without their flags. You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Feb 2, Apr 13, Sep 11, Let's start with a TCP scan of the target ip address to determine which ports are open and which services are running on those ports:.
We have port 80 open, which is running an IIS 7. The full TCP scan confirmed that there are no addional ports open. When we browse to After trying different basic combinations of credentials, and trying to create a new account, it didnt seem to be exploitable. Nothing of note was found on the directories that we could access, unfortunatly admin was forbidden.
I found this awesome Drupal enumeration tool called droopescan to search the website for possible vulnerabilities or interesting directories and files. So from the scan, we see that our Drupal version is likely to be 7. Checking for public Drupal exploits. As we saw in the nmap scan and the droopescan, we know that the web server is running Drupal version 7. There were quite a few exploits available for dupal version 7 with many 'drupalgeddon' exploits, but those were not created until after this machine was release on htb, meaning the most likely intended method is the Module Services RCE exploit.
This exploit, takes advantage of an SQL Injection to get the contents of the cache, admin creds and hash then alters the cache to allow us to write to a file, then restore the cache afterwards. As with many exploit code, this one needs some tinkering. So as we can see, it gives us the session name, id and token.
This is what comprises the cookie needed to gain access to the admin panel, so we need to edit the sesison. We can now try and access the admin panel with the created cookie. Firstly, lets see what happens when we browse to Press F12 to bring up the developer tools bar, then click on console.
This is where we want to enter our created cookie:. Gain a session via a reverse shell on the machine via netcat.
Bitlab – HackTheBox writeup
Now that we have access to the admin panel, we now need a way to gain access to the machine, possinly through a reverse shell uploaded via the panel? Firstly we need to click on the module tab then scroll down to the PHP filter module, enable it then save the configuration. Next, we need to click the permissions tab that is now visible next to PHP filter to give the administrator rights to use the PHP code text format.
Now that we have given the administrator rights to create php text files, lets create a new page that contains a php reverse shell! I normally use the php reverse shell from pentestmonkeybut i couldnt get it to work so instead, im going to utilise msfvenom to create my own php reverse shell:. So we do get a connection back from the machine, but when i enter any command, it drops the connection. We can use the meterpreter session to upload our created executable to the bastard machine:.
Now that we have an initial foothold on the machine, its time to find possible routes to root, and to help with this, im going to use the reliable windows exploit suggester tool!
For the tool to work, we need to grab the contents of the systeminfo command from the bastard machine and copy it to our attacker machine:. Now we can use wes. So this produced a list of over possible vulnerabilities After looking on google, it seems that the ms exploit is called 'Chimichurri' and with that, i found a github page that has this exploit pre compiled.
Download the chimichurri. We have a connection on our netcat listener! Lets see what level of privileges we now have:. HacktheBox - Bastard Writeup. Again, it seems that Port 80 will be our route into the target machine Enumerating Drupal with droopescan I found this awesome Drupal enumeration tool called droopescan to search the website for possible vulnerabilities or interesting directories and files.The home page is redirected to the sign in page.
The bottom has 2 links of interest. Explore and Help.
Explore link bring us to the Projects page where we can see current projects, groups and snippets. All links except Gitlab Login point to external sites. To find out what the variable contains, we can use the development console. The easiest way to use this credentials is to bookmark the link right click on the link :. The credentials is populated to the sign in form. How convenient. Of course, we can also simply type in the credentials ourselves.
Now click on Sign In and we sign successful in to the application. This Gitlab allows us to maintain our projects.
Hack The Box Monteverde Writeup – 10.10.10.172
Essentially, we can upload any files to the project. This will use ip-address Sure enough, we are able to perform git pull.
So do some researches on Google and I am able to find out a feature call git hook. Couple good read can be found at:. For git pullhook post-merge scripts can be used and will be triggered when a merge occurs.
To achieve that, we will create a local copy of the project Profile. Then make some changes and perform a merge. And finally doing a sudo git pull on the local copy will trigger the custom post-merge script defined in the local copy. Privilege Escalation Vulnerability: sudo git pull Explanation: hook script for post-merge can be defined to perform code execution as root Enumeration nmap -p- -A -T4 Help page only has a bookmarks. The easiest way to use this credentials is to bookmark the link right click on the link : Now go back to the login page and select the bookmarked link: The credentials is populated to the sign in form.
Now click on Sign In and we sign successful in to the application This Gitlab allows us to maintain our projects. Now make it available to the website. Couple good read can be found at: Git Hooks githooks documentation For git pullhook post-merge scripts can be used and will be triggered when a merge occurs. Modify shell Leave a Reply Cancel reply. Close Menu.From the nmap scan we see that we have port 22 open for SSH, 3 ports open that are associated with email protocols, ports 23, and and also we have a web server on port A point to note here is that port 80 is not open which is unusual for a box with a web server, so port is what im going to enumerate first.
When I browse to all three hostnames added, I get a 'connection is not secure' message from my browser. I ran WPScan on the webpage too see if we find anything of interest. The results of the scan show that the webpages WordPress plugin may be vulnerable to exploitation. Searchsploit has two exploits in which we are interested in, the 7.
Comparing the wpscan and the searchsploit results, it seems that the wpscan authenticated SQLi vulnerability may not actually be an accurate description. This allows us unauthenticated access to admin-ajax. We can now edit the priv esc exploit and create a new html file with the valid URL, username and email address.O stock dividend
In order to run the html file, we need to start a http server on our machine then browse to our local host address. The username that we entered in the html file script is already populated, we just need to click login. The page will seem like it is continuously loading, but if we go back to brainfuck.
A common method to gain a shell through wordpress is to edit the themes, but it seems that every theme is not writeable due to our current user permissions. So a different method is needed to gain a shell. Now that we have a valid email address and SMTP password, lets load an email client to login to the user orestis' mailbox! Add brainfuck. Although I dont think that we need to send an emails from orestis' account, lets configure it anyway with the server type as SMTP, the server as brainfuck.
Once we have gone through the configuration wizard, we are prompted to enter the password for orestis, this is where the SMTP password we found earlier is entered.
And just like that, we have access to orestis mail account which contained an email from root with crentials for the 'Super Secret Forum' we found at the start of our enumeration! SSH Access is a discussioin regarding orestis needing access via an SSH key rather than a password to login with, as that has been disabled:. In order to decrypt the discussion thread, we need to figure out what type of cipher is being used. If we look at the last sentence of the encrypted orestis posts, it looks exactly like the footer of every cleartext orestis post, 'Orestis - Hacking for fun and profit' as it has the same characters and spacings only these messages are encrypted with a cipher that changes the characters on every post.
To decrypt the messages, we need to figure out the key used to encrypt the messages. I will use the cleartext footer and the first encrypted footer of the key discussion and attempt to decrypt the key with the One Time Pad on rumkin.
So set the OTP to decrypt, and enter the first letter of the cleartext in the 'The Pad' box and the encrypted letter in the 'Your Message' box, and we see that the first letter our decrypted key is 'b'. Now that we have the key used to encrypt the messages, we can use another cipher decryptor on rumkin.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. If nothing happens, download GitHub Desktop and try again.
If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again. Machines writeups until March are protected with the corresponding root flag. But since this date, HTB flags are dynamic and different for every user, so is not possible for us to maintain this kind of system.
So from now we will accept only password protected challenges and retired machines that machine write-ups don't need password. It is totally forbidden to unprotect remove the password and distribute the pdf files of active machines, if we detect any misuse will be reported immediately to the HTB admins. Anyway, all the authors of the writeups of active machines in this repository are not responsible for the misuse that can be given to the corresponding documents.
Please think that this is done to share techniques not for spoilers. In this way, you will be added to our top contributors list see below and you will also receive an invitation link to an exclusive Telegram group where several hints not spoilers are discussed for the HacktheBox machines. Please consider protecting the text of your writeup e.
HackTheBox - Poison Writeup
Of course, if someone leaks a writeup of an active machine it is not the responsibility of the author. If we detect someone who does it, they will immediately report to the HTB Staff so they can take the appropriate measures. Note: the minimum requirement to enter the "special" Telegram group is also to have a hacker level or higher no script kiddies.
Hack the Box is a superb platform to learn pentesting, there are many challenges and machines of different levels and with each one you manage to pass you learn a new thing. But talking among ourselves we realized that many times there are several ways to get rooting a machine, get a flag That's why we created this repository, as a site to share different unofficial writeups to see different techniques and acquire even more knowledge.
That is our goal and our passion, to share to learn together. Some people have been distrustful because in this repository there are writeups of active machines, even knowing that absolutely each one of them is protected with the corresponding password root flag or challenge. But We did not want to give up this because we think the most interesting thing for a HTB player is to check other users' walkthroughs right after they get it, that is, not wait for weeks or months afterwards.
For this reason, we have asked the HTB admins and they have given us a pleasant surprise: in the future, they are going to add the ability for users to submit writeups directly to HTB which can automatically be unlocked after owning a machine. And also, they merge in all of the writeups from this github page. Simply great! Therefore it is a real pride that they have decided to include the functionality of this repo directly on their platform. When this is done, this Github will be migrated and will be inactive but with a pleasantly fulfilled mission.
Until then, Keep pushing! Skip to content. Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Sign up. Writeups for HacktheBox 'boot2root' machines.
Branch: master. Find file. Sign in Sign up. Go back.Aurat ki khwaish
Launching Xcode If nothing happens, download Xcode and try again. Latest commit. Latest commit Apr 13, Disclaimer It is totally forbidden to unprotect remove the password and distribute the pdf files of active machines, if we detect any misuse will be reported immediately to the HTB admins.Let's start with a TCP scan of the target ip address to determine which ports are open and which services are running on those ports:.
Okay so there are a few ports open! There are the standard ports that are common on these boxes, SSH on Port 22 and HTTP on Port 80 but it also seems that there is mail server present on this machine with common mail ports and protcols in use, SMTP, Pop3, IMAP etc with what also seems like a webmin admin login portal on port and last but not least, mysql is also running on the machine.Project speed box s2
When we browse to As default credentials dont seems to work on the login panel and nothing of not in the page source code, lets run a gobuster on Port After looking at several of these exploits, the 'graph. So this page lists the default freePBX database configuration, along with usernames and passwords!
After logging into freePBX with the changed password, there was no luck with gaining a foothold via the portal. We are root! I enjoyed this box as it had multiple avenues for exploitation, via the LFI which i used or via port by utilising a blind payload in the user-agent field. I think that this box is quite realistic as im sure that the same password is used for multiple accounts, of varying permissions, aswell as running out of date and vulnerable software!
HacktheBox - Beep Writeup. Reconnaissance 1. Enumeration - Port Browse to Okay, so this looks a little messy, lets view the page source to make it easier to read! Foothold - Root via LFI. Logging into Beep via SSH. What did I learn from Beep? Conclusion Thanks for reading! Next up is Box 12 - Granny!
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