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deayzl's blog
The binary consists of two functions; main and main[cold]. main: int __cdecl main(int argc, const char **argv, const char **envp) { __int64 v3; // rax char *v4; // rdi char *v5; // rdx char *v6; // rax __int64 v7; // rsi __int64 v8; // rcx signed __int64 v9; // rbx signed __int64 v10; // rax size_t v11; // rdx char *v12; // rsi __int64 v13; // rbx int v14; // ebp char v15; // cl int *v16; // rdi..
I did play this ctf as team 프로그램털모찌. It was about 7 am for me in korea when I solved this. I spent the night with no sleep. Then I fell asleep right after I solved this. I realized that.. guys, try to sleep at the appropriate time, or you gon miss upcoming challenges. When I opened my eyes, there was already "subformore" released long time ago :( (this is why I could only give an aaw primitive f..
보호되어 있는 글입니다.
box.c : // gcc box.c -o box -no-pie #include #include #include #include #include #include #include #include #define FLAG_PATH "/flag" int install_seccomp(uint8_t *filt, unsigned short len); void vuln(); void read_flag(); uint32_t target = 0xdead; int main(int argc, char **argv) { uint32_t filt_len; setvbuf(stdin, NULL, _IONBF, 0); setvbuf(stdout, NULL, _IONBF, 0); setvbuf(stderr, NULL, _IONBF, 0..
Tool: ghidra 10.2.2 with GolangAnalyzerExtension Exploit: making utf-8 shellcode (pwnable) feat. I've never written any code in go language, so all of these are from internet references and quite a lot of my predictions. So there might be something wrong with my analysis. /* WARNING: Unknown calling convention */ /* Name: main.handleConnection Start: 004cd140 End: 004cdb00 */ void main.handleCon..
이름: 안현준대학: 단국대학교 사이버보안학과 23학번나이: 2003년생소속: cat :flag_kr:취미: 음악 듣기(발라드 제외), 게임, 해킹, 해외 축구 시청좋아하는 분야: Pwn, Rev직업: 백수 Education: 2023.07 ~ 2024.03 , BoB 12th 취약점분석트랙 (top30)Career: 2023.08 ~ , ctf team cat :flag_kr: 2023.09 ~ 2023.12, BOB12 project, Linux kernel에서 발생하는 Memory corruption으로 이어지는 Data-race에 대한 효과적 검출CTF: - 2022 2022 Fall GoN Open Qual CTF 13th 🏆 Dreamhack CTF Season..