newbie dive into binary


Entries from 2020-10-01 to 1 month

【pwn 38.2】SECCON CTF 2020 ~ part.3 kvdb

keywords customized memory system / tcache poisoning / heap feng shui / libc2.32 鶏がチキンレースをしたらチキンチキンレースになり それがガキ使の企画として行われたらチキチキチキンチキンレースになることは自明であるが キツキツのキッチンでそれ…

【pwn 38.1】SECCON CTF 2020 ~ part.2 kstack (kernel exploit)

keywords kernel exploit / setxattr / userfaultfd / shm_file_data / double free 1: イントロ 2: 静的解析 2: Vulns 3: Leak kernbase via shm_file_data 4: Double free via failure of copy_from_user 4: Rule PC via seq_operations and setxattr 5: R…

【pwn 38.0】SECCON CTF 2020 ~ part.1 lazynote / pwarmup

keywords forge _IO_FILE_plus to leak / libc2.27 1: イントロ お知らせ 2: pwarmup 静的解析 Vulns / Attack Vector Exploit 3: lazynote 静的解析 Vulns libcbase leak Limited arbitrary write into stdin Forge stdin via unimited arbitrary write int…

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