webProeasy

PDF Library

hackerlab

Task: PDF download service with hex-encoded file parameter. Solution: Decode hex to discover LFI, use path traversal to read source code, find hidden flag file location in PHP comments.

lfi path_traversal php local_file_inclusion hex_encoding source_code_disclosure

Local File Inclusion via hex-encoded pathSource code analysis for hidden file discoveryPath traversal with hex encoding bypass

$ ls tags/ techniques/

lfi path_traversal php local_file_inclusion hex_encoding source_code_disclosure

Local File Inclusion via hex-encoded pathSource code analysis for hidden file discoveryPath traversal with hex encoding bypass

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!

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