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HackMyVM/Attack.md

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+# HackMyVM-Attack
+
+## NMAP
+
+```
+Nmap scan report for 192.168.1.144
+Host is up (0.000080s latency).
+Not shown: 65532 closed ports
+PORT   STATE SERVICE VERSION
+21/tcp open  ftp     ProFTPD
+22/tcp open  ssh     OpenSSH 7.9p1 Debian 10+deb10u2 (protocol 2.0)
+| ssh-hostkey: n
+|   2048 f4:8d:08:b4:99:d2:0c:5d:75:b8:22:83:7b:c2:88:15 (RSA)
+|   256 e2:16:0a:e7:38:4a:ec:76:cf:d3:56:78:07:fd:2f:25 (ECDSA)
+|_  256 0b:5a:9c:71:cc:3b:50:04:46:18:ad:67:8a:df:d0:d6 (ED25519)
+80/tcp open  http    nginx 1.14.2
+|_http-server-header: nginx/1.14.2
+|_http-title: Site doesn't have a title (text/html).
+MAC Address: 08:00:27:A4:8E:56 (Oracle VirtualBox virtual NIC)
+Service Info: OS: Linux; CPE: cpe:/o:linux:linux_kernel
+
+Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
+Nmap done: 1 IP address (1 host up) scanned in 14.94 seconds
+
+```
+
+## PORT 80
+
+<img src="https://imgur.com/C5mDTuw.png"/>
+
+<img src="https://imgur.com/9kXsAiF.png"/>
+
+
+## Wireshark
+
+<img src="https://imgur.com/E8FKsmB.png"/>
+
+Following the FTP data request the changing the stream we may see this request 
+
+<img src="https://imgur.com/O0hxipZ.png"/>
+
+<img src="https://imgur.com/2PL6mV7.png"/>
+
+<img src="https://imgur.com/0XKERHX.png"/>
+
+We get an id_rsa key file but we don not know the username so we can't actually use it without a vaid username so let's look for it.
+
+<img src="https://imgur.com/2YBRoLS.png"/>
+
+Going back to the ftp login on the top we can see the username and password
+
+<img src="https://imgur.com/NbTBVhB.png"/>
+
+
+Note says
+
+```
+I need to find the file!
+```
+So this is referring to the id_rsa file we found we actually went a step ahead : )
+
+
+Using the username `teste` and id_rsa key let's login with ssh
+
+<img src="https://imgur.com/lMBasY7.png"/>
+
+
+<img src="https://imgur.com/PA1EwiR.png"/>
+
+In `jackob`'s directory we can see that there is a note
+
+<img src="https://imgur.com/2vWRKmJ.png"/>
+
+<img src="https://imgur.com/5VdtC13.png"/>
+
+But we don't have permissions to execute and there was nothing else we could do as `teste`. So going back to the pcap file I tried to export objects as HTTP and found an archive with the same name
+
+<img src="https://imgur.com/ZkMrR5A.png"/>
+
+<img src='https://imgur.com/qlWgDKO.png'/>
+
+We can see there is a difference between those two archive one we got from FTP other by exporting objects as HTTP
+
+<img src="https://imgur.com/qlWgDKO.png"/>
+
+This is the image we get
+
+<img src="https://imgur.com/k1FsNKY.png"/>
+
+Now I though this was braille so I tried different sites to convert braille image to text , used different python scripts for reading braille looked at the table for it but I couldn't figure out the pattern then I uploaded this file to a barcode reader convert and it gave me a url
+
+<img src="https://imgur.com/cA9MkEV.png"/>
+
+<img src="https://imgur.com/kot0sB6.png"/>
+
+And we got `jackob`'s id_rsa key
+
+<img src="https://imgur.com/PGnh1iA.png"/>
+
+<img src="https://imgur.com/lMcKVG2.png"/>
+
+We can run `attack.sh` as user `kratos`
+
+<img src="https://imgur.com/LIOjSdm.png"/>
+
+So either delete or change the name of `attack.sh` and make your own attack.sh file
+
+<img src="https://imgur.com/DYk68ho.png"/>
+
+Put `/bin/bash` in the attack.sh file
+
+<img src="https://imgur.com/n9CNHvU.png"/>
+
+Check for `sudo -l` that what we can run as root or other user
+
+<img src="https://imgur.com/RI6UjdF.png"/>
+
+What `cppw` does is it will overwrite the `/etc/passwd` file so create file in the format having a username,password hash,user_id,group_id and the home directory. I copied my root user password hash and saved it in a text file then executed the cppw binary so it saved this in the /etc/passwd and it got overwritten.
+
+<img src="https://imgur.com/Xs7pQZY.png"/>
+
+Knowing my root password I successfully logged in as root without the root on that machine !!.