TryHackMe Devie Full Walkthrough | Python Eval Exploit, Reverse Shell, XOR , Privilege Escalation

#TryHackMe #Devie #CTF #CyberSecurity #EthicalHacking #PenetrationTesting Unlock the entire TryHackMe Devie room in this complete, step‑by‑step cybersecurity walkthrough covering reconnaissance, exploitation, reverse shell, horizontal/vertical privilege escalation, XOR decoding, backup script abuse, and full root compromise. In this video, we start with Nmap scanning, analyze the exposed Flask web application on port 5000, and dive into source code analysis where an unsanitized Python eval() vulnerability leads to remote command execution and a reverse shell. After stabilizing the shell, we explore user directories, uncover Gordon’s encoded password mechanism, and perform XOR + Base64 decoding to retrieve credentials. Then we escalate privileges from bruce → gordon → root using a misconfigured automated backup script that copies files with root permissions — allowing a SUID persistence bypass through --preserve=mode filename injection. Perfect for beginners and intermediate penetration testers looking to strengthen their skills in: Web exploitation Python eval injection Reverse shells Linux privilege escalation XOR and Base64 decoding logic Abuse of automated backup scripts Enumeration with linpeas and pspy If you’re preparing for security certifications, CTF competitions, or want to sharpen your red‑team methodology, this video will give you a complete guided breakdown. If you enjoy this walkthrough, drop a comment and share which TryHackMe room you want next! #ReverseShell #PrivilegeEscalation #LinuxSecurity #WebExploitation #PythonExploit #EvalInjection #Infosec #RedTeam #HackingTutorial #CTFWalkthrough #ExploitDevelopment #THMWalkthrough #CyberSecurityTraining