• RC3 CTF 2017 - Write Up

    Reversing (100) Diberikan file elf 64bit not stripped. $ file hello hello: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 2.6.32, BuildID[sha1]=e85915bc2c95f7eac6c02254b065d9161e5efca2, not stripped Hanya dengan menggunakan strings didapatkan Flag yang benar. $ strings hello | grep RC RC3-2017{little_ball_of_fur} Cukup mudah untuk challenge dengan...


  • TUCTF 2017 - Writeup

    Reversing 200 (Unknown) Diberikan file ELF 64 bit stripped. Berikut hasil disassembly fungsi main signed __int64 __fastcall main(int a1, char **a2, char **a3) { signed __int64 result; // [email protected] unsigned int i; // [sp+14h] [bp-Ch]@5 char *v5; // [sp+18h] [bp-8h]@5 if ( a1 == 2 ) { if ( strlen(a2[1])...


  • School CTF 2017 - Write Up

    Website Web100 (Self Signed) When they ask me should I trust SchoolCTF or not - the answer is obvious! Task URL Situs tersebut menggunakan self signed ssl, dan Flag nya terdapat pada bagian Organizational unit (OU). curl -v https://secured.task.school-CTF.org/ -k --silent -I Flag : SchoolCTF{n0t_so+$eCur3} Web200 (Port Scan) Pretending to...


  • hxp CTF 2017 - cloud18 (web 150)

    We also did an online text editor! We also made it, like, super secure! We are so confident that we even give you the source code. Download: 65e868ae9518a3fd226e71d4041be9d4cd8350d7552b46832f3e7f0b5d6e03af.tar.xz Connection: http://35.198.105.111:5475/ Diberikan sebuah website beserta source code nya. Tampilan awal web tersebut hanya terdapat form login dan register. fungsi web tersebut...


  • RC3 CTF 2017 Write Up

    Reversing (100) Diberikan file elf 64bit not stripped. $ file hello hello: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 2.6.32, BuildID[sha1]=e85915bc2c95f7eac6c02254b065d9161e5efca2, not stripped Hanya dengan menggunakan strings didapatkan Flag yang benar. $ strings hello | grep RC RC3-2017{little_ball_of_fur} Cukup mudah untuk challenge dengan...