stegoProeasy

Чужой (Alien)

bug-makers

Task: 5.8 MB DOCX (OOXML/ZIP) pseudo-scientific paper about the Alien franchise, flag hidden somewhere inside. Solution: the flag was split across per-entry ZIP central-directory comments; concatenating each entry's comment and base64-decoding yields the flag — invisible to Office and image/text stego tools.

steganography zip base64 docx ooxml archive_comment

zip_central_directory_comment_extractionper_entry_zip_comment_steganographybase64_reassembly

$ ls tags/ techniques/

steganography zip base64 docx ooxml archive_comment

zip_central_directory_comment_extractionper_entry_zip_comment_steganographybase64_reassembly

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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