As we can see, SeImpersonatePrivilege privilege is enabled. I first run netstat -ano to see what ports the system is open to. I used plink.exe for that purpose because it was already on the machine.Some body else might have uploaded it. for the core features to work.The self updating function will require git, and for the Nmap XML option to work, will require xmllint (found in the libxml2-utils package in Debian-based systems).. You can find a more in-depth guide in the SearchSploit manual. It looks like CloudMe is running as a user other than shaun. We can find the binary in the “shaun’s” Download directory. Privilege Escalation Reverse shell. Buff is an easy rated Windows machine from HackTheBox. If we look into vulFunction, the pointer (0x025E70) is overwritten with the return address of the strcpy function.The strcpy function has two arguments. Port fowarding I found that port 8888 is only available locally.Then I found the process by the PID. We look at the currently running processes by running tasklist. In our case we are going to run nc.exe to get reverse shell as Administrator On the Contact page, we see that it tells us that the website is made using Gym Management Software 1.0, upon looking in the internet we get … Exploit Collector is the ultimate collection of public exploits and exploitable vulnerabilities. After googling I found that it had a buffer over flow exploit. Attack Vector. service sshd start. Privilege Escalation During enumeration of shaun ’s account, I noticed that 8888/tcp is listening on the loopback interface. In this box, we will be tackling: LFI; Using Tomcat’s manager-script via curl commands to upload an … Install. Remote/Local Exploits, Shellcode and 0days. Buff is an easy Windows machine on Hack the Box. Near the flagged directory in the C:\Users\shaun\Downloads directory I found the file CloudMe_1112.exe. This write-up is also one of the very first I’ve written. Privilege Escalation: After searching every Directory I found CloudMe_1112.exe in Downloads. It was really difficult to find stuff that could really lead to privilege escalation. The start of the machine requires using unathenticated remote code execution exploit to gain an initial shell. What the python program actually does is use PHP to fetch the system shell, which is executed as a PNG extension. I have to exit this web shell so that I have more commands at my disposal. Privilege escalation We need a privilege escalation. Let’s begin with an initial port scan: $ nmap -Pn --open -p- -sC -sV 10.10.10.198 PORT STATE SERVICE VERSION 7680/tcp open pando-pub? After a bit of searching manual searching in directories, I found that cloudme_1112.exe was present inside C:\Users\shaun\Downloads. After our scan, we find that there is a Gym Management System 1.0 deployment running on port 8080. We will get authentication bypass CVE-2019–19521 vulnerability. FootHold. [***] Summary: [***] 4 new Open signatures, 7 new Pro (4 + 3). Privilege Escalation . It’s a complicated job, and I won’t write it down. I fired up winPEAS.exe and the terminal was flowing with results! ASX to MP3 converter ASX Buffer Overflow Exploit Microsoft Office Equation Editor Memory Corruption Exploit (CVE-2018-0802) Update Microsoft Office Memory Corruption Exploit (CVE-2017-11826) Update Omron CX-Supervisor Project File Exploit Sync Breeze Enterprise Import Command Buffer … Privilege Escalation. Cloud Atlas, Win32/Ruskyper, GoldenPac Privilege Escalation. Let’s start to enumerate shaun’s home directory. The following advisory describes one (1) vulnerability found in CloudMe. For me, this is the fastest foothold and user flag ever on Hack The Box. Privilege Escalation. Privilege escalation. Threat. Pivoting on the process ID, a process CloudMe.exe was the one responsible for it. The exploit works by tricking the server into uploading an image extension (PNG) by manipulating the Content-Type in the GET request. After running the exploit, we have a web shell, and we can read the user flag. There is an exe file in the Downloads folder. Exploit-db provides exploits for multiple versions, however it seems like the suffix indicates that it is version 1.11.2. If the name “Buff” wasn’t enough of a hint of what’s to come, you may be surprised to find that CloudMe 1.11.2 is vulnerable to a Buffer Overflow. This exploit runs the application present on remote system. After quick Search I came to know CloudMe v1.1.12 is vulnerable to buffer overflow. It seemed to be an interesting file. bash, sed, grep, awk, etc.) Brief@Buff:~$ This is relatively an easy box which is based on the 2 CVE'S, The PHP webapp that is hosted on port 8080 is vulnerable to a Unauthenticated Remote Code Execution from that exploit got first initial shell, There is a Binary Cloudme.exe running on the local port that is vulnerable to the buffer over flow and exploting it to get shell as Administrator Privilege Escalation. In the list, we see the process called CloudMe.exe. Thrawling through the files in this machine, we’ll quickly find an unusual file: C:\Users\shaun\Downloads\CloudMe_1112.exe. just to confirm if that is running i checked the port in netstat. It features a blue folder that appears on all devices with the same content, all files are synchronized between devices.” For this we need to forward the port first. Netstat for TCL and ports only listening on localhost are 3306 (MySQL) and 8888 which seems to be connected to service running by a CloudMe.exe. After a little enumeration I saw a CloudMe.exe .So I googled about it. We are then able to use this exploit to gain a foothold. In the user part, we will enumerate port 80 and grab some authentication files. A quick look at ExploitDB brings up a Python buffer overflow exploit, and given the name of the … The next phase is to do a privilege escalation. "MSI Ambient Link Driver 1.0.0.8 - Local Privilege Escalation" local: windows "Matteo Malvica" 2020-05-22 "Druva inSync Windows Client 6.6.3 - Local Privilege Escalation" local: windows "Matteo Malvica" 2019-03-04 "Splunk Enterprise 7.2.4 - Custom App RCE (Persistent Backdoor - Custom Binary Payload)" webapps: windows "Matteo Malvica" 2019-02-21 This is promising, since Administrator was the only other account we found. Let’s dig in. NOTE: In Windows, service accounts that are running SQL server or IIS service have this privilege enabled by design.This privilege can abuse COM servers to impersonate other users. It returns several vulnerabilities when we search CloudMe into searchsploit. Exploit for buffer overflow 48389. The initial shell does not work properly, so you must upload netcat and execute it to gain a more stable shell. Local Privilege Escalation I searched gym in metasploit and found 48506.py. We can likely to introduce Juicy Potato attack in order to escalate our privilege to SYSTEM.. After the port scan, we discovered two open ports. we see that it is running internally on port 8888. and checking searchsploit we see exploit for that using 48389. Lets port forward the port to my machine so i can use run the exploit. CloudMe is “a file storage service operated by CloudMe AB that offers cloud storage, file synchronization and client software. This time, I wanted to use a different tool. Privilege Escalation. At this point, we usually use some tools to collect system information to find the vulnerability of privilege escalation. Privilege escalation. SearchSploit requires either "CoreUtils" or "utilities" (e.g. Privilege Escalation Shaun —> Administrator. Privilege Escalation via Cronjob; Initial Recon ... cloudMe.exe BoF Exploit; Initial Recon Nmap. In my last post about Devel (which you can find here), we used a tool called Sherlock to locate privilege escalation exploits on a machine. This is the first box I ever done on HackTheBox. Like for Fart-knocker We can use the CVE-2015-1328 exploiting overlayFS to get a root shell on the machine. The vulnerability lies in the CloudMe Sync client listening on localhost on port 8888. Privilege escalation . In the root part, we will do CVE-2019–19520: Local privilege escalation via xlock. OpenKeys is the Hack The Box medium level box. An attacker can send a specially crafted payload to the application on port 8888 to execute arbitrary code. 2020-02-13 "OpenTFTP 1.66 - Local Privilege Escalation" local exploit for windows platform On this shell, you discover that there is a vulnerable service running internally. A quick systeminfo returns that we’re dealing with a 64-bit Windows Server 2008 R2 machine with no patches installed. ... 0 3,208 K conhost.exe 2452 0 10,868 K CloudMe.exe 3496 0 26,884 K … Enumerating the box manually i saw Cloudme in Download directory. We find some documentation around a known vulnerability in this tool that allows for unauthenticated remote code execution. If the application is running with Adminitrator privileges, it can result in local privilege escalation. This is a very interesting box, especially the root privilege escalation. As the user shaun, I could read the user.txt file.. 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