cryptoProeasy

CP

spbctf

Task: Russian text garbled by wrong codepage (UTF-8 displayed as CP866). Solution: Encode as CP866 then decode as UTF-8 to reveal the flag as spelled-out Russian numbers.

cp866 utf8 encoding_mismatch codepage

Detect encoding mismatch from garbled charactersEncode as CP866 then decode as UTF-8

$ ls tags/ techniques/

cp866 utf8 encoding_mismatch codepage

Detect encoding mismatch from garbled charactersEncode as CP866 then decode as UTF-8

Analysis

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

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