Inception - 10.10.10.67
Exploiting the host:
Squid is open so may need that later
Dirb brought back nothing useful
Very long page source on default website and at the bottom we find :
Checking the /dompdf location we find a version and an applicable exploit
Looks like we can read files from the filesystem:
Build the following request and request it in burp
Decode only the base64 string
Now we have a user and the etc passwd file.
Search around for interesting files:
Ensure you decode the results ctrl + shift + b
Grab the webdav passwd
Crack that with john
Now we need to find the webdav dir so check the original file:
Now cadaver to webdav_test_injection
We can upload a shell but cannot access it unless we are authenticated. Try to use squid to access the file remotely which does not work, instead upload a php reverse shell and a simple backdoor just incase we cant get a shell back
The reverse shell does not work but the simple one does.
Now we have command execution:
Enumerating the system we see that ssh is open
Not possible to get a shell back at this point which suggests a firewall stopping outbound connections so sent this command over to the repeater for further enumeration.
Seeing as we cannot use wget etc to upload/ download anything upload linenum via cadaver and execute with our simple php shell
Script has run
WP config looks interesting
Read this with the LFI we found earlier.
Now we have a mysql password but no mysql running.
Port 22 is open locally so perhaps we need to access that via squid proxy:
Configure proxychains as follows:
Login with the credentials you have found
Sudo su gives you root with the same password
However the root flag is hidden.
Looking at the ip tells us we may be inside a vm
Find the gateway and scan it with Nmap which reveals tftp is open.
Upload all of the following scripts via tftp to the gateway and wait around 5 minutes to get a proper shell on inception
Waiting for the new crontab to run:
Collect your flag