newbie dive into binary


Entries from 2020-07-01 to 1 month

【pwn 27.0】 meowmow (kernel exploit) - zer0pts CTF 2020

keywords kernel exploit / step-by-step kern exploit walk-through / buffer overflow / forge vtable / kernel ROP 0: 参考 1: イントロ 2: 準備 配布ファイル デバッグ環境の整備 kernelのビルド モジュールのビルド ファイルシステムの展開・圧縮 GDBで…

【pwn 32.0】glibc2.32 Safe-Linking とその Bypass の概観

keywords glibc-2.32 / safe-linking / heap mitigation / House of IO / leak heapbase by reading encrypted fd 0: 参考 1: イントロ 2: Safe-Linking 概観 3: Safe-Linkingの実装とその仕組み 実装 仕組み 4. House of io 5. P' から Lの leak 6. Further…

【pwn 31.0】 TSGCTF 2020 作問反省

keywords TSG CTF / House of Corrosion / heap feng shui / ごめんね 0: イントロ 1: RACHELL: 7solves 322pts 問題概要 非想定解 想定のバグ 想定解 2: Violence Fixer: 13solves 241pts 問題概要 想定解 3: Karte: 6solves 341pts 4: 全体 5: アウトロ 0:…

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