202010 [CTF] SSTF 2020 (Hackers-Playground) Writeup I solved just 3 probs except for Misc,... In the tutorial prob, there was a PPT with an explanation of the probs and a solution. I saw three solutions about tutorial... The probs were very different. Tutorial probs were relatively easy but I didn't solve all tutorials... I should learn more. The probs were interesting. I came across a new language in My Stego and it was new to analyze the hacker.. 2020. 8. 23. [CTF] rgbCTF 2020 Write up We got 168th place. I received my first prize, shodan premium. Although it was given to 1000 teams, I'm glad about my first prize. After CTF, I was disappointed in myself because I think I should have tried more creatively and intensively and solved more problems After the final exam, I will learn about CTF much more. REV Too Slow Advanced Reversing Machines 1 Crypto I Love Rainbows Beginner pie.. 2020. 7. 15. [CTF] redpwnCTF 2020 Write up The design of that site was pretty cool. I got 235th place in redpwn ctf as a team name, New beginner PWN coffer-overflow-0 coffer-overflow-1 coffer-overflow-2 secret-flag the-library REV bubbly SMArT-solver PWNABLE coffer-overflow-0 #include #include int main(void) { long code = 0; char name[16]; setbuf(stdout, NULL); setbuf(stdin, NULL); setbuf(stderr, NULL); puts("Welcome to coffer overflow, .. 2020. 6. 28. [CTF] CastorsCTF 2020 Write up 개인1856점, 총 4974점을따서 43등을 했습니다. 첫날 서버오류로 디코방에서 문제를 받고 운영자에게 DM으로 flag 를 인증한게 기억에납니다. 점수별 난이도조절을 실패해서 43등까지 온것같네요. pwn abcbof babybof1 babybof1 pt2 babybof2 babyfmt rev Vault0 Vault1 Stacking Xor Reverse-me forensic Manipulation Leftovers coding arithmetics PWNABLE abcbof gets 로 입력을 받고 [rbp-0x110] [rbp-0x10] 과 'CyberCastors' 을 비교합니다. gets 로 입력을 받으니, dummy 값 0x100 개를 채우고 rbp-0x10 값을 CyberCastors 로 .. 2020. 6. 1. 이전 1 2 3 다음
