forensicsPromedium

Time Capsule

tamuctf

Task: ext4 disk image with 17 image files, flag hidden somewhere. Solution: timestamps encode ASCII via minutes×60+seconds formula, reading files in order spells the flag.

ext4 ascii_encoding disk_image sleuth_kit inode_metadata timestamps timestomping

ascii_decodingfilesystem_forensicstimestamp_analysisinode_metadata_extraction

$ ls tags/ techniques/

ext4 ascii_encoding disk_image sleuth_kit inode_metadata timestamps timestomping

ascii_decodingfilesystem_forensicstimestamp_analysisinode_metadata_extraction

Analysis

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

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