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spbctf

Task: DOCX file containing a hidden secret. Solution: Extract DOCX as ZIP archive, analyze embedded images with exiftool, find flag in Photoshop text layer XMP metadata.

steganography jpeg zip_archive docx embedded_images exif photoshop xmp_metadata

DOCX file structure analysis (ZIP-based format)Embedded image extractionEXIF/XMP metadata analysisPhotoshop layer metadata inspection

$ ls tags/ techniques/

steganography jpeg zip_archive docx embedded_images exif photoshop xmp_metadata

DOCX file structure analysis (ZIP-based format)Embedded image extractionEXIF/XMP metadata analysisPhotoshop layer metadata inspection

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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