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CSAW CTF 2015 -- wyvern

Category: Reversing Points: 500 Here they gave us another 64 bit ELF, which is apparently written in C++. It will ask us to input a secret, and tell us if we failed or success. The checking sec...

CSAW CTF 2015 -- FTP & FTP2

Category: Reversing (FTP) & Exploitable (FTP2) Points: 300 (FTP) & 300 (FTP2) FTP 64 bit ELF. It’s a FTP-like service, we can list all the acceptable command by sending the HELP command....

CSAW CTF 2015 -- Hacking Time

Category: Reversing Points: 200 This challenge gave us a NES ROM. After we launch it with NES debugger FCEUX, we found out that it eventually want us to input a password with 24 characters in leng...

AIS3 2015 pre-exam -- complete writeup

考量到參與 AIS3 2015 pre-exam 的人幾乎都是台灣人 這個 blog 的第一篇中文 writeup 就獻給這篇了 XD 基本上就是全包這次 exam 的所有題目 有問題歡迎留言討論 MISC MISC1 沒啥特別,範例 flag AIS3{hello_world} MISC2 給了一個 facebook.zip,有密碼 老實說我最討厭這種需要解壓縮檔密碼的題目 = =...

DEFCON CTF 2015 Quals -- wibbly-wobbly-timey-wimey

Category: Pwnable Points: 2 Wibbly Wobbly Timey Wimey Don’t blink! wwtw_c3722e23150e1d5abbc1c248d99d718d.quals.shallweplayaga.me:2606 32 bit ELF, with Partial RELRO, stack canary found, NX &...

DEFCON CTF 2015 Quals -- catwestern

Category: Coding Challenge Points: 1 meow catwestern_631d7907670909fc4df2defc13f2057c.quals.shallweplayaga.me 9999 Interesting challenge. First we connect to the service, it will send us the...

DEFCON CTF 2015 Quals -- mathwhiz

Category: Baby’s First Points: 1 mathwhiz_c951d46fed68687ad93a84e702800b7a.quals.shallweplayaga.me:21249 The challenge’s pretty simple. The service will ask you a bunch of math problems(1000...

DEFCON CTF 2015 Quals -- r0pbaby

Category: Baby’s First Points: 1 r0pbaby_542ee6516410709a1421141501f03760.quals.shallweplayaga.me:10436 64 bit ELF. No stack guard, but it has NX & PIE protection. The service will give ...

ASIS CTF 2015 Quals -- grids

Category: Programming Points: 300 In each stage send the maximun size of area that can be covered by given points as a vertex of polygon in 2D. nc 217.218.48.84 12433 mirror 1 : nc 217.218.48.8...

ASIS CTF 2015 Quals -- Saw this (1 & 2)

Category: pwn Points: 100 (Saw this-1), 400 (Saw this-2) Survive and get the flag! Note: This challenge contains two flags, one of them is easier to fetch, the other is harder. The easier flag...