stegoPromedium

The Saving Prescription

hackerlab

Task: a PNG image of a Russian medical prescription from 1962 with 23 medications and dosages in mg. Solution: recognize that all dosage values fall in the printable ASCII range, convert each number to its ASCII character to reveal a hidden leetspeak message — the flag.

osint png hidden_message leetspeak ascii_encoding medical_prescription alcatraz historical_context

ascii_code_decodingdocument_analysishistorical_context_verificationnumeric_to_ascii_conversion

$ ls tags/ techniques/

osint png hidden_message leetspeak ascii_encoding medical_prescription alcatraz historical_context

ascii_code_decodingdocument_analysishistorical_context_verificationnumeric_to_ascii_conversion

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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