webProeasy

Mikroo

hackerlab

Task: an Apache/PHP site exposed a hidden upload vhost and stored uploaded files inside a web-accessible uploads directory. Solution: reuse the available PHP shell for RCE as apache, then abuse perl with cap_setuid to read /root/flag.txt as root.

php file_upload webshell apache linux_capabilities privilege_escalation hidden_vhost

vhost_enumerationunrestricted_file_uploadwebshell_rcecapability_abuse

$ ls tags/ techniques/

php file_upload webshell apache linux_capabilities privilege_escalation hidden_vhost

vhost_enumerationunrestricted_file_uploadwebshell_rcecapability_abuse

Analysis

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

$ python3 exploit.py --target 192.168.1.1 --port 8080
[*] Connecting to target...
[+] Shell obtained!

Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

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