Captured the user flag by exploiting a file upload feature, unpacking .odt files to reveal a hidden password with xmllint, and injecting a reverse shell via the backup feature to get a www-data shell. Retrieved hashes from the nocturnal_database, cracked Tobias’s password (slowmotionapocalypse), and obtained the user flag. For the root flag, enumerated open ports, found port 8080 running ISPConfig, accessed it with admin credentials, identified the version, executed a public exploit, and gained root shell to capture the root flag.

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Learn MoreHack The Box: Nocturnal Machine Walkthrough – Easy Difficulty