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Certified Ethical Hacker (CEH) Practice Question

While pivoting in a segmented network, you land in a restricted shell on an Ubuntu server where id returns uid=33(www-data). A quick enumeration shows /usr/bin/nmap has the SUID bit set and reports version 2.02 when run. What is the fastest way to escalate privileges on this host?

  • Invoke "nmap --privileged --script-upgrade" to append your account to /etc/sudoers.

  • Create a malicious NSE Lua script that spawns /bin/bash and execute it using "nmap --script".

  • Run "nmap -e eth0 --privileged" to open port 4444 and receive a reverse root shell.

  • Launch Nmap with "nmap --interactive" and type "!sh" inside the prompt to obtain a root shell.

Certified Ethical Hacker (CEH)
System Hacking Phases and Attack Techniques
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