2024 HuntressCTF - Base-p-
2024-10-08 | #
Summary Author: Izzy Spering That looks like a weird encoding, I wonder what it's based on. Steps Looking at the text file for the challenge I see this: 楈繳籁萰杁癣怯蘲詶歴蝕絪敪ꕘ橃鹲𠁢腂𔕃饋𓁯𒁊鹓湵蝱硦楬驪腉繓鵃舱𒅡繃絎罅陰罌繖𔕱蝔浃虄眵虂𒄰𓉋詘襰ꅥ破ꌴ顂𔑫硳蕈訶𒀹饡鵄腦蔷樸𠁺襐浸椱欱蹌ꍣ鱙癅腏葧𔕇鱋鱸𓁮聊聍ꄸꈴ陉𔕁框ꅔ𔕩𔕃驂虪祑𓅁聨朸聣摸眲葮𖠳鵺穭𒁭豍摮饱恕𓉮詔葉鰸葭楷洳面𔕃𔑒踳𔐸杅𐙥湳橹驳陪楴氹橬𓄱蝔晏稸ꄸ防癓ꉁ𖡩鵱聲ꍆ稸鬶魚𓉯艭𔕬輷茳筋𔑭湰𓄲怸艈恧襺陷项譶ꍑ衮汮蹆杗筌蹙怰晘缸睰脹蹃鹬ꕓ脶湏赑魶繡罢𒉁荶腳ꌳ蕔𔐶橊欹𖥇繋赡𐙂饎罒鵡𒉮腙ꍮ楑恤魌虢昹𒅶效楙衎𔕙ꉨ𓈸𔑭樯筶筚絮𓁗浈豱ꉕ魔魧蕕聘筣鹖樫ꍖ汸湖萰腪轪𓉱艱絍笹艨魚詇腁𒁮陴顮虂癁 The challenge’s name is Base-p-. The -p- reminds me of the all ports commands on nmap which reminded of a challenge last year where I had to use Base65536. Trying that same approach I was able to decode the text another chunk of base64 text.