HackTheBox - Lame Writeup

SH∆FIQ ∆IM∆N included in HacktheBox Linux

20-07-2021 268 words 2 minutes

Contents

Box author | ch4p

Enumeration

First, let’s do an enumeration with the IP address of this machine. I’m gonna run Nmap [Netwok Mapper] to scan any open ports. I’m gonna run this command

1

nmap -sC -sV -oN nmap/initial 10.10.10.3

Explaining the nmap scan:

-sC := scan using nmap default script
-sV := scan for version
-oN := output in normal format

/posts/htb/lame/2.png — nmap initial scan

The Nmap scan shows us port 21 is FTP and can log in as anonymous. However, I can’t find anything useful in there but the version of FTP looks vulnerable. I’ll try to exploit it again I failed. Turns out that particular version is already patch. So, yup.

Foothold/Gaining Access

Also, we can see this machine has samba 3.0.20 maybe it’s useful for us.

So, I’m searching smb exploit for this specific version samba 3.0.20 on the internet and I found this exploit.

/posts/htb/lame/3.png — found samba exploit

This exploit is available on metasploit. I’m gonna run my msfconsole . I’m gonna search this exploit and use it.

/posts/htb/lame/4.png — select exploit from metasploit

After that, I’m gonna set the important thing lhost and rhost. Then, I’m gonna run the exploit.

Oopsie

WOW! I’M A ROOT USER. Unbelievable! Anyways let’s hunt the user and root flag

User flag

Root flag

Conclusion

I’ve learned a lot today. First, please don’t allow FTP login as anonymous. Second, please update the system. In this case, I’m able to exploit the samba 3.0.20 and become root. That’s scary.

I have a fun time doing this machine and I hope you guys too. Bye ;)