HTB Traverxec

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Lessons Learned

  1. If user directories are hosted on a website, the usual syntax is /~amanda
  2. Minimize a window for priv esc is an attack.
  3. Ippsec stty method

After doing a nmap scan, we see port 22 and 80 is open.

Looking around the website, I see the banner nostromo 1.9.6. Thats different than the usual Apache or Nginx. I look it up in SearchSploit and see a Remote Code Exectuion exploit exists.

Ippsec method for better shell:
-- Gives you tab autocomplete -- 
CTRL Z
stty raw -echo
Type fg ENTER, HIT it TWICE
-- Gives you tab autocomplete -- 
export TERM=xterm  (now you can clear the screen)

I run linpeas and see it highlighted the /var/nostromo/conf/.htpasswd file that contains "david:$1$e7NfNpNi$A6nCwOTqrNR2oDuIKirRZ/"

The hash matches format 500. I will use that in hashcat.

Strange Priv Esc

/usr/bin/sudo /usr/bin/journalctl -n5 -unostromo.service

Run the command up above. Minimize your terminal window.. This will bring up less. We can use !/bin/bash to get root.

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