Delivery - Hack The Box
Delivery is a quick and fun easy box where we have to create a MatterMost account and validate it by using automatic email accounts created by the OsTicket application. The admins on this platform have very poor security practices and put plaintext credentials in MatterMost. Once we get the initial shell with the creds from MatterMost we’ll poke around MySQL and get a root password bcrypt hash. Using a hint left in the MatterMost channel about the password being a variation of PleaseSubscribe!, we’ll use hashcat combined with rules to crack the password then get the root shell.
Ready was a pretty straighforward box to get an initial shell on: We identify that’s it running a vulnerable instance of Gitlab and we use an exploit against version 11.4.7 to land a shell. Once inside, we quickly figure out we’re in a container and by looking at the docker compose file we can see the container is running in privileged mode. We then mount the host filesystem within the container then we can access the flag or add our SSH keys to the host root user home directory.